JPH08339663A - Recording medium, recording apparatus for recording data on the recording medium, and recording method thereof, reproducing apparatus for reproducing data from the recording medium, and reproducing method - Google Patents

Abstract

The present invention can easily create various menus by changing the color and contrast of characters. According to the present invention, a menu is created from main video data as a background image of a menu and sub-video data consisting of menu selection items, and highlight information for the selection items of the sub-video data is changed. , It is possible to easily create various menus, and variously change the colors and contrasts of pattern pixels, background pixels, and emphasized pixels as pixel data in the button area that surrounds the selection items and confirmed items represented by sub-picture data. It is a thing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium such as an optical disc for recording data of different types and types such as compressed moving image data and audio data, a recording device for recording data on this recording medium, and its recording medium. The present invention relates to a method for recording data on a recording medium, a reproducing device for reproducing data from the recording medium, and a method for reproducing data from the recording medium.

[0002]

2. Description of the Related Art Conventionally, video, LD (laser disk)
When a menu is provided for video data such as, use the character generator etc. of the playback device regardless of the video,
The selected item (or confirmed item) was superimposed on the displayed image, or the image data including the selected item was prepared.

In the former case, if a number such as a character code corresponding to the selection item is included in the video data, the reproducing device determines the position or the like of the selection item corresponding to the code number by using a character generator or the like. It is possible to let the user recognize the selection result by changing the display color of the character generator corresponding to the selection item corresponding to the selected number even if the user selects it. Has a drawback in that it is practically impossible to equip the playback device with character generators corresponding to all of the contents and languages for displaying the selection items.

In the latter case, since the menu data is created as video data, the reproducing apparatus is not burdened, but in order to recognize the selection item corresponding to the selection result of the user, a new video corresponding to the selection number is created. Since it is necessary to retrieve and display the data, it takes time until a new image for recognition is displayed, which causes a malfunction of the user.

That is, when the video data including the selection result is prepared, (a) none of the selection items "1.ABCDE" and "2.XYZ" is selected as the video data for creating the menu. Video data of (b) Video data with selection item “1.ABCDE” selected (c) Video data with selection item “2.XYZ” selected It is necessary to prepare three types of video data. is there. The playback device can display a menu screen reflecting the selection result of the user by selecting and replaying the necessary video data according to the selection result of the user.

However, in this case, a new reproduction process is executed, and it takes several seconds or more to display the menu screen reflecting the user's selection result, and the user is selected during the waiting time. There is a drawback in that the possibility of executing an erroneous operation increases because of fear that it is not there.

Further, when displaying the selection items of the menu on the reproducing apparatus, as the video data for creating the menu,
It is only necessary to prepare video data with no selection items, and the selection items to be displayed on the video data for creating the menu are selected at the playback device's discretion by recording the corresponding character codes at the same time. It is possible to easily create a state in which each selection item is selected according to the situation.

However, the size, shape, language, etc. of the characters that can be expressed as the selection items are all determined by the ability of the reproducing apparatus, and the title creator who creates the menu has only a limited menu screen. There is a drawback that it cannot be created and the load on the playback device increases.

[0009]

SUMMARY OF THE INVENTION The present invention utilizes video data having main video data and sub-video data,
The object is to reduce the load on the playback device and enable real-time reaction according to the selection result of the user.

According to the present invention, a menu is created from main video data as a background image of a menu and sub-video data consisting of a selection item or a finalization item of the menu, and highlight information for the selection item or finalization item of the sub-video data. It is intended that various menus can be easily created by changing, that is, changing the color and contrast of characters.

[0011]

The recording medium of the present invention comprises:
A management area is formed in a part of the area and a data area is formed in another area. In the data area, at least one main video data and at least one sub-video that can be reproduced in the same time zone as the main video data. Data is recorded, and at least one menu information corresponding to each content used when confirming or selecting various contents of the main video data is recorded by the main video data and the sub video data. The main image data constituting the menu information is a background image, the sub-image data is a selection item or a confirmed item, and the control data of the selection item or the confirmed item constituted by the sub-image data is applicable. Corresponding main video data is recorded in the data area.

According to the recording apparatus of the present invention, at least one main video data and the main video data are stored in the data area of a recording medium in which a management area is formed in a part of the area and a data area is formed in another area. And at least one sub-picture data that can be reproduced in the same time zone, at least one corresponding to each of the above-mentioned contents used for confirming or selecting various contents of the main-picture data. A first supply means for supplying a background image of one menu information as main video data, which can be reproduced in the same time zone as the main video data, and supplies sub video data as a selection item or a finalization item of the menu information. Second supply means, first encoding means for encoding the main video data supplied by the first supply means, supplied by the second supply means Second encoding means for encoding the selected sub-picture data, instructing means for instructing the control content of the selection item or fixed item of the menu information, and generating control data for the selected item or fixed item instructed by the instructing means. And a main video data encoded by the first encoding means, sub-video data encoded by the second encoding means, and control data generated by the generating means. And recording means for recording.

According to the recording apparatus of the present invention, at least one main video data and the main video data are stored in the data area of a recording medium in which a management area is formed in a part of the area and a data area is formed in another area. In which at least one sub-picture data reproducible in the same time zone and at least one audio data reproducible in the same time zone as the main video data are recorded, various contents of the main video data are respectively recorded. A first supply means for supplying, as main video data, a background image of at least one menu information corresponding to each of the above contents used for confirmation and selection
The second video data can be reproduced in the same time zone as the main video data, and can be reproduced in the same time zone as the main video data, the second supply means supplying the sub video data as the selection item or the final item of the menu information. And third supply means for supplying audio data corresponding to the main video data, first encoding means for encoding the main video data supplied by the first supply means, and second supply means for the second supply means. Second encoding means for encoding the sub-picture data, third encoding means for encoding the audio data supplied by the third supplying means, and an instruction for instructing the control content of the selection item or the finalization item of the menu information Means, generating means for generating control data of the selection item or confirmed item instructed by the instructing means, and The main video data encoded by the first encoding means, the sub-video data encoded by the second encoding means, the audio data encoded by the third encoding means, and the control data generated by the generating means. It is composed of recording means for recording in the data area of the recording medium.

In the reproducing apparatus of the present invention, a management area is formed in a part of the area and a data area is formed in another area, and at least one main video data and the same time as the main video data are formed in the data area. At least one reproducible sub-picture data and control data are recorded in the band, and at least one corresponding to each of the above-mentioned contents used for confirming or selecting various contents of the main-picture data. The background image of the menu information is recorded with the above-mentioned main video data, the selection item or the confirmed item of that menu information is recorded with the sub-picture data, and the control information of the selection item or the confirmed item of that menu information is recorded with the control data. When reproducing the main video data and the sub video data from the recording medium, the main video data and the sub video data in the data area of the recording medium are reproduced. , And reading means for reading the control data, and main video data read by the reading means is converted into reproduction output, and read by the reading means on the basis of the control data read by the reading means. It is composed of a conversion means for converting the sub-picture data into a reproduction output.

In the reproducing apparatus of the present invention, the management area is formed in a part of the area and the data area is formed in the other area. In the data area, at least one main video data and the same time as the main video data are formed. At least one sub-picture data, at least one audio data, and at least one control data that can be reproduced are recorded in the band, and when confirming or selecting various contents of the main picture data, respectively. At least 1 corresponding to each of the above contents to be used
The background image of one menu information is recorded in the above main video data, the selection item or the confirmed item of that menu information is recorded in the sub video data, and the control information of the selection item or the confirmed item of that menu information is recorded in the control data. In which main video data, sub video data, and audio data are reproduced from a recording medium, a reading means for reading main video data, sub video data, audio data, and control data in the data area of the recording medium, Also, the main video data and audio data read by the reading means are converted into reproduction output, and the sub-picture data read by the reading means is reproduced and output based on the control data read by the reading means. It is composed of conversion means for converting.

In the communication system of the present invention, a management area is formed in a part of the area and a data area is formed in another area, and at least one main video data and the same time as the main video data are formed in the data area. At least one reproducible sub-picture data and control data are recorded in the band, and at least one corresponding to each of the above-mentioned contents used for confirming or selecting various contents of the main-picture data. The background image of the menu information is recorded as the main video data, the selection item or the confirmed item of the menu information is recorded as the sub-picture data, and the control information of the selection item or the confirmed item of the menu information is recorded as the control data. In the one that reads the main video data, the sub video data, and the control data from the recording medium, and communicates to the outside,
Reading means for reading main video data, sub video data, and control data in the data area of the recording medium, and communication means for communicating the main video data, sub video data, and control data read by the reading means to the outside. And converting the main video data communicated by this communication means into a reproduction output, and converting the sub-picture data communicated by the communication means into a reproduction output based on the control data communicated by the communication means. It is composed of conversion means.

In the communication system of the present invention, a management area is formed in a part of the area and a data area is formed in another area, and at least one main video data and the same time as the main video data are formed in the data area. At least one sub-picture data reproducible in the band, at least one audio data,
And at least one control data are recorded, and a background image of at least one menu information corresponding to each content used for confirming or selecting various contents of the main video data is the main image. Main image data from the recording medium that is recorded as video data, the selection item or confirmation item of the menu information is recorded as sub-picture data, and the control information of the selection item or confirmation item of the menu information is recorded as control data. Reading means for reading main video data, sub-picture data, audio data and control data in the data area of the recording medium, for reading sub-picture data, audio data and control data to the outside, and reading means The main video data, sub video data, audio data and control data read by Communication means for communicating with the section, and converting the main video data and audio data communicated by the communication means into reproduction output, and communicated by the communication means based on the control data communicated by the communication means. It is composed of a conversion means for converting the sub-picture data into a reproduction output.

[0018]

DETAILED DESCRIPTION OF THE INVENTION An optical disk reproducing apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a block of an optical disc reproducing apparatus for reproducing data from an optical disc according to an embodiment of the present invention, and FIG. 2 shows a block of a disc drive section for driving the optical disc shown in FIG. 3 shows the structure of the optical disc shown in FIGS. 1 and 2.

As shown in FIG. 1, the optical disc reproducing apparatus is
Key operation / display unit 4, monitor unit 6 and speaker unit 8
Is provided. Here, the user operates the key operation / display unit 4
The recorded data is reproduced from the optical disc 10 by operating the. The recording data includes video data, sub-video data and audio data, which are converted into a video signal and an audio signal. The monitor section 6 displays an image by an audio signal, and the speaker section 8 produces a sound by the audio signal.

As is known, the optical disc 10 has various structures. As the optical disc 10, for example, as shown in FIG. 3, there is a read-only disc on which data is recorded at high density. As shown in FIG. 3, the optical disc 10 comprises a pair of composite layers 18 and an adhesive layer 20 interposed between the composite disc layers 18. Each composite disk layer 18 is composed of a transparent substrate 14 and a recording layer, that is, a light reflection layer 16. The disc layer 18 is arranged so that the light reflection layer 16 contacts the surface of the adhesive layer 20. The optical disc 10 has a central hole 22
Around the center hole 22 on both sides thereof, a clamping area 24 for holding the optical disk 10 during its rotation is provided. When the disc 10 is loaded into the optical disc device, the spindle of the spindle motor 12 shown in FIG. To be done.

As shown in FIG. 3, the optical disc 10 is surrounded by the clamping areas 24 on both sides thereof.
It has an information area 25 in which information can be recorded. Each information area 25 is defined as a lead-out area 26 where information is not normally recorded in its outer peripheral area, and a lead-in area 27 where information is not normally recorded in its inner area that contacts the clamping area 24. In addition,
A data recording area 28 is defined between the lead-out area 26 and the lead-in area 27.

In the recording layer 16 of the information area 25, normally, a track is continuously formed in a spiral shape as an area for recording data, and the continuous track is divided into a plurality of physical sectors. A serial number is given to each sector, and data is recorded with this sector as a reference.
The data recording area 28 of the information recording area 25 is an actual data recording area, and reproduction information, video data (main video data), sub-video data and audio data are similarly pits (that is, physical data) as described later. Change of state)
Is recorded as. Read-only optical disc 10
Then, a pit row is formed in advance on the transparent substrate 14 with a stamper, a reflective layer is formed by vapor deposition on the surface of the transparent substrate 14 on which the pit row is formed, and the reflective layer is formed as the recording layer 16. . Further, in the read-only optical disc 10, normally, no groove is provided as a track, and a pit row formed on the surface of the transparent substrate 14 is defined as a track.

As shown in FIG. 1, the optical disc device 12 further includes a disc drive unit 30, a system CPU unit 50, a system ROM / RAM unit 52, a system processor unit 54, a data RAM unit 56, and a video decoder unit 58. , An audio decoder section 60, a sub-picture decoder section 62 and a D / A and data reproducing section 64. The system processor unit 54 includes a system time clock 54A and a register 54B, and
The video decoder unit 58, the audio decoder unit 60, and the sub-picture decoder unit 62 similarly include system time clocks (STC) 58A, 60A, and 62A.

As shown in FIG. 2, the disk drive unit 30
Is a motor drive circuit 11, a spindle motor 12,
An optical head 32 (that is, an optical pickup), a feed motor 33, a focus circuit 36, a feed motor drive circuit 37, a tracking circuit 38, a head amplifier 40, and a servo processing circuit 44 are provided. Optical disc 10
Is placed on a spindle motor 12 driven by a motor drive circuit 11, and is rotated by this spindle motor 12. An optical head 32 for irradiating the optical disc 10 with a laser beam is placed under the optical disc 10. The optical head 32 is placed on a guide mechanism (not shown). Feed motor drive circuit 3
7 is provided for supplying a drive signal to the feed motor 33. The motor 33 is driven by the drive signal to move the optical head 32 in the radial direction of the optical disc 10. The optical head 32 includes an objective lens 34 that faces the optical disc 10. The objective lens 34 is moved along its optical axis according to the drive signal supplied from the focus circuit 36.

In order to reproduce data from the above-mentioned optical disc 10, the optical head 32 irradiates the optical disc 10 with a laser beam via the objective lens 34. The objective lens 34 is finely moved in the radial direction of the optical disc 10 in accordance with the drive signal supplied from the tracking circuit 38.
Further, the objective lens 34 has a focusing circuit 36 so that its focus is located on the recording layer 16 of the optical disc 10.
It is finely moved along the optical axis in accordance with the drive signal supplied from. As a result, the laser beam forms a minimum beam spot on the spiral track (i.e. row of pits) and the track is tracked with the light beam spot. The laser beam is reflected from the recording layer 16 and the optical head 3
Returned to 2. The optical head 32 converts the light beam reflected from the optical disk 10 into an electric signal, and the electric signal is supplied from the optical head 32 to the servo processing circuit 44 via the head amplifier 40. In the servo processing circuit 44,
A focus signal, a tracking signal, and a motor control signal are generated from the electric signal, and these signals are respectively supplied to the focus circuit 36, the tracking circuit 38, and the motor drive circuit 11.
Is being supplied to.

Therefore, the objective lens 34 is moved along its optical axis and the radial direction of the optical disc 10, its focal point is located on the recording layer 16 of the optical disc 10, and the laser beam makes the minimum beam spot on the spiral track. Form. Further, the motor drive circuit 11 rotates the spindle motor 12 at a predetermined rotation speed. as a result,
The pit train of the optical disc 10 is tracked by a light beam, for example, at a constant linear velocity.

A control signal as an access signal is supplied to the servo processing circuit 44 from the system CPU section 50 shown in FIG. The servo processing circuit 4 responds to this control signal.
4 supplies a head movement signal to the feed motor drive circuit 37, and this circuit 37 sends the drive signal to the feed motor 3
3 will be supplied. Therefore, the feed motor 33
Are driven, and the optical head 32 is moved along the radial direction of the optical disc 10. Then, the optical head 32 accesses a predetermined sector formed on the recording layer 16 of the optical disc 10. The reproduction data is reproduced from the predetermined sector, supplied from the optical head 32 to the head amplifier 40, amplified by the head amplifier 40, and output from the disk drive unit 30.

The output reproduction data is the RO for the system.
The data is stored in the data RAM section 56 by the system processor section 54 under the control of the system CPU section 50 controlled by the program recorded in the M and RAM section 52. The stored reproduction data is processed by the system processor unit 54 to be classified into video data, audio data and sub-picture data.
It is output to the audio decoder unit 60 and the sub-picture decoder unit 62 and decoded. The decoded video data, audio data and sub-picture data are video signals as analog signals in the D / A and reproduction processing circuit 64,
The video signal and the sub-picture signal are supplied to the monitor 6 and the audio signal is supplied to the speaker unit 8 after being converted into an audio signal and mixed. As a result, an image is displayed on the monitor unit 6 by the video signal and the sub-image signal, and a sound is reproduced from the speaker unit 8 by the audio signal.

In the optical disc reproducing apparatus shown in FIG. 1, the user operates as a remote control device which is connected to the key operation and display section 4 on the front panel of the main body or the remote control receive section 4A in the main body by optical communication by infrared rays. Recording data, that is, video data, sub-video data, and audio data is reproduced from the optical disc 10 by operating the remote control 5 and is converted into an audio (sound) signal and a video signal in the device, and a monitor unit outside the device. 6 and the speaker unit 8 reproduce the image and sound.

As shown in FIG. 4, the key operation and display unit 4 includes a power key 4a, a microphone input terminal 4b, a play key 4c, a pause key 4d, a stop key 4e, a fast forward / return key 4f, and an optical disk 10. It is composed of an open / close key 4g for instructing loading / unloading, a display 4h, insertion of the optical disk 10, an exit 4i, and the like.

As shown in FIG. 5, the remote control 5 includes a power key 5a, a numeric key 5b, and a stop key 5.
c, play key 5d, pause key 5e, memory key 5
f, an open / close key 5g for instructing loading / unloading of the optical disk 10, a fast-forward / return key 5h, a key 5i, and a repeat key 5 for instructing repeat and a range.
j, a menu key 5k for instructing the display of the menu screen,
Title key 5 to instruct display of the title menu screen
l, up / down / left / right select keys 5m and the like used when selecting an item when the menu screen is displayed.

Detailed operation of the optical disk device shown in FIG. 1 will be described later in detail with reference to the logical format of the optical disk 10 described below.

The data recording area 28 from the lead-in area 27 to the lead-out area 26 of the optical disk 10 shown in FIG. 1 has a volume and file structure as shown in FIG. This structure has a specific format as a logical format, for example, micro UDF (mi
cro UDF) and ISO 9660. The data recording area 28 is physically divided into a plurality of sectors as described above, and the physical sectors are given serial numbers. In the following description, logical addresses are micro UDF (micro UDF) and I
Logical sector number (LS
N), the logical sector is 2048 bytes like the size of the physical sector, and the logical sector number (LS
In N), consecutive numbers are added together with the ascending order of physical sector numbers.

As shown in FIG. 6, the volume and file structure has a hierarchical structure, and has a volume and file structure area 70, a video manager 71, at least one or more video title sets 72 and another recording area 73. are doing. These areas are divided on the boundaries of logical sectors. Here, as in the conventional CD, one logical sector is defined as 2048 bytes. Similarly,
One logical block is also defined as 2048 bytes, so
One logical sector is defined as one logical block.

The file structure area 70 is a micro UDF.
And the management area defined by ISO 9660, and the video manager 71 is stored in the system ROM / RAM section 52 via the description of this area. Information for managing a video title set is described in the video manager 71 as described with reference to FIG.
It is composed of a plurality of files 74 starting from. Also, each video title set 72 stores compressed video data, audio data, sub-picture data, and reproduction information of these, as will be described later, and is similarly composed of a plurality of files 74. Here, the plurality of video title sets 72 is limited to a maximum of 99,
Further, the number of files 74 (File #j to File # j + 9) forming each video title set 72 is set to 10 at maximum. These files are also divided at the boundaries of logical sectors.

In the other recording area 73, information that can use the above-mentioned video title set 72 is recorded.
The other recording area 73 does not necessarily have to be provided.

As shown in FIG. 7, the video manager 71
Contains three items, each corresponding to each file 74. That is, the video manager 71 controls the video manager information (VMGI) 75 and the video object set (VMGM) for the video manager information menu.
_VOBS) 76 and video manager information backup (VMGI_BUP) 77.
Here, the video manager information (VMGI) 75 and the video manager information backup 77 (VMGI)
_BUP) 77 is a required item, and is a video object set (V) for the video manager information menu.
MGM_VOBS) 76 is optional.
Video object set for this VMGM (VMGM
_VOBS) 76 stores the video data, audio data, and sub-picture data of the menu related to the video of the optical disc managed by the video manager 71.

The volume name of the optical disk, such as the reproduction of the video described later by the video object set (VMGM_VOBS) 76 for this VMGM,
Along with the volume name display, a description of audio and sub-picture is displayed, and selectable items are displayed on the sub-picture. For example, a video object set for VMGM (VMG
M_VOBS) 76 is the video data that stores the match up to the boxer's world champion where the optical disk is, that is, the fighting pose of the boxer X is reproduced in the video data together with the volume name such as the glory history of the boxer X. Along with that, his theme song is displayed by voice, and his chronology is displayed on the sub-picture. In addition, it is inquired which language, such as English or Japanese, the game narration will be selected as a selection item, and whether subtitles in other languages will be displayed in the sub-picture, and which language subtitles will be selected. Inquire about whether or not. Video object set for this VMGM (V
With the MGM_VOBS) 76, the user will be ready to watch the Boxer X match video, for example, with the audio subtitling in Japanese as a sub-picture in English.

The structure of the video object set (VOBS) 82 will be described with reference to FIG. FIG. 8 shows an example of the video object set (VOBS) 82. This video object set (VO
BS) 82 has three types of video object sets (VOBs) for two menus and for titles.
S) 76. That is, the video object set (V
OBS) 82, as described later, in video title set (VTS) 72, video object set for menu of video title set (VTSM_VOBS).
Video Object Set (VTSTT) for titles of 95 and at least one or more Video Title Sets
_VOBS) 96, and each of the video object sets 82 has the same structure except that the usage is different.

As shown in FIG. 8, the video object set (VOBS) 82 is defined as a set of one or more video objects (VOB) 83, and the video object 8 in the video object set (VOBS) 82 is defined.
3 are provided for the same purpose. Normally, the video object set (VOBS) 82 for menu is composed of one video object (VOB) 83, and data for displaying a plurality of menu screens is stored. On the other hand, the video object set (V
The TSTT_VOBS) 82 is usually composed of a plurality of video objects (VOBs) 83.

Here, the video object (VOB) 8
3 corresponds to the video data of each match of Boxer X, for example, in the boxing video described above, and by specifying the video object (VOB), for example, the 11th match that challenges World Champion is reproduced on the video. can do. Also, the video object set for menu of the video title set 72 (VTSM_VOB
S) 95 stores the menu data of the match of the Boxer X, and according to the display of the menu, a specific match, for example, the 11th match to challenge the world championship can be designated. In a normal 1-story movie, one video object (VOB) 83 corresponds to one video object set (VOBS) 82, and one video stream corresponds to one video object set (VOB).
It will be completed in S) 82. In the animation collection or the omnibus movie, a plurality of video streams corresponding to each story are provided in one video object set (VOBS) 82, and each video stream is stored in the corresponding video object. Therefore, the audio stream and the sub-picture stream related to the video stream are also included in each video object (VO).
B) It will be completed in 83.

In the video object (VOB) 83,
An identification number (IDN # j) is added, and the video object (VOB) 83 can be specified by this identification number. Video Object (VOB) 83 is 1
Alternatively, it is composed of a plurality of cells 84. A normal video stream is composed of a plurality of cells, but a video stream for a menu, that is, a video object (VOB) 83 may be composed of one cell 84. Similarly, an identification number (C_IDN #
j) is added, and the cell 84 is specified by this cell identification number (C_IDN # j). When changing the angle, which will be described later, the angle is changed by specifying this cell number.

Here, the angle means changing the viewing angle in the field of video, and in the boxing example,
This means that you can see the same knockout scene from various angles, such as the scene seen from the champion side, the scene seen from the challenger side, and the scene seen from the judge's side. The angle may be selected according to the user's preference, or the same scene may be automatically repeated in different angles in the story flow. Also, when selecting an angle,
When the angle changes when returning to the beginning of the same scene, for example, when the angle changes in the scene when the boxer puts in the counter and the counter enters again, and when the angle changes in the scene following that scene, for example, the boxer counters The angle may change at the moment when the punch is inserted after inserting. A navigation pack 86, which will be described in detail later, is provided in the video object unit (VOBU) 83 so that any angle change can be realized.

As shown in FIG. 8, each cell 84 includes one or a plurality of video object units (VOBU) 85, usually a plurality of video object units (VOBU).
It is composed of 85. Here, the video object unit (VOBU) 85 is defined as a pack string having one navigation pack (NV pack) 86 at the head. That is, the video object unit (VOB
U) 85 is defined as a set of all packs recorded from one navigation pack 86 to immediately before the next navigation pack. The reproduction time of this video object unit (VOBU) corresponds to the reproduction time of the video data composed of one or a plurality of GOPs contained in the video object unit (VOBU) as shown in FIG. Is 0.4 seconds or more and 1
It is set so that it is not larger than a second. According to MPEG, 1 GOP is normally 0.5 seconds and is defined as compressed screen data for reproducing about 15 images during that period.

When the video object unit includes video data as shown in FIG. 8, a video pack (V pack) 88, a sub-picture pack (SP pack) 90 and an audio pack (A pack) defined by the MPEG standard.
A video data stream is configured by arranging GOPs composed of 91. A video object (VOBU) 83 is defined based on the reproduction time of the GOP regardless of the number of GOPs, and the head of the video object (VOBU) 83 is defined. The navigation pack (NV pack) 86 is always arranged. Further, even in the reproduction data of only audio and / or sub-picture data, the reproduction data is configured with this video object unit as one unit. That is, even if the video object unit is composed of only the audio pack,
Similar to the video object of the video data, the audio pack to be played within the playback time of the video object unit to which the audio data belongs is stored in the video object unit. The procedure for reproducing these packs will be described later in detail together with the navigation pack (NV pack) 86.

Referring again to FIG. 7, the video manager 7
1 will be described. The video management information 75 arranged at the head of the video manager 71 describes information for managing the video title set (VTS) 72, such as information for searching a title and information for playing a video manager menu. At least 4 in the order shown in FIG.
One table 78, 79, 80, 81 is recorded. Each of these tables 78, 79, 80, 81 is aligned with the boundary of the logical sector. Video management information management table (VMGI_MAT) 78, which is the first table
Is an indispensable table and describes the size of the video manager 71, the start address of each information in the video manager 71, the attribute information about the video object set (VMGM_VOBS) 76 for the video manager menu, and the like.

A second table of the video manager 71, the title search pointer table (TT
_SRPT) 79 is an entry program chain of video titles contained in the volume in the optical disc 10 that can be selected according to the input of a title number from the device and the display unit 4 or the selection of the title number by the remote controller 5. EPGC) is described.

Here, the program chain 87 is a set of programs 89 for reproducing the story of a certain title as shown in FIG. 9, and the movie of one title is completed by continuously reproducing the program chain. To be done. Therefore, the user is
By designating the program 89 in 7, the movie can be watched from a specific scene of the movie.

The third table of the video manager 71, the video title set attribute table (VTS_A
The TRT) 80 describes the attribute information defined in the video title set (VTS) 72 in the volume of the optical disc. That is, the number of video title sets (VTS) 72 and the video title set (V
TS) 72 number, video attribute, for example, video data compression method, audio stream attribute, for example, audio coding mode, sub-video attribute, for example, sub-video display type, etc. in this table. Has been described.

The video manager menu PGCI unit table (VMGM_PGCI_UT) 81, which is the fourth table of the video manager 71, describes information about the video object set (VMGM_VOBS) 76 for the video manager menu.

The video manager menu PGCI unit table (VMGM_PGCI_UT) 81 is an indispensable table when the video manager menu (VMGM) exists in the video object set (VMGM_VOBS) 76 for the video manager menu.

Video management information management table (VMGI_
Details of the description contents described in the MAT) 78 and the title search pointer table (TT_SRPT) 79 will be described below with reference to FIGS. 10, 11, 12 and 13.

As shown in FIG. 10, in the video management information management table (VMGI_MAT) 78, the identifier (VMG_ID) of the video manager 71 and the logical block (as described above, one logical block is 2048 bytes).
The number of video management information (VMGI_SZ), the version number (VERN) regarding the standard of the optical disc, commonly known as a digital versatile disc (digital versatile disc: hereinafter simply referred to as DVD), and the category of the video manager 71 (VMG_CA).
T) is described.

Here, in the category (VMG_CAT) of the video manager 71, a flag or the like indicating whether or not copying is prohibited by the DVD video directory is described. In addition, this table (VMGI_MAT) 78
Includes the video set identifier (VLMS_ID), the number of video title sets (VTS_Ns), and the supplier identifier (PVR_I) of the data recorded on this disc.
D), the start address (VMGM_VOBS_SA) of the video object set (VMGM_VOBS) 76 for the video manager menu, the end address (VMGI_MAT_EA) of the video manager information management table (VMGI_MAT) 78, and the start of the title search pointer table (TT_SRPT) 79. The address (TT_SRPT_SA) is described. The table 78 also includes a video manager menu PGCI unit table (VMGM_PGC).
Start address of I_UT 81 (VMGM_PGC
I_UT_SA) is described. Video manager menu PGCI unit table (VMGM_PG
When there is no CI_UT) 81, "00000000h" is described in the start address. VMGI_
End address of MAT78 (VMGI_MAT_EA)
And the start address of TT_SRPT79 (TT_S
RPT_SA) is described by the number of logical blocks relative to the leading logical block.

Further, this table 78 includes an attribute table (VTS_A) of the video title set (VTS) 72.
TRT 80 start address (VTS_ATRT_
SA) is VMGI manager table (VMGI_M
AT) 71 is described by the relative number of bytes from the first byte, and the video attribute (VMGM_V_ATR) of the video manager menu (VMGM) is described. Furthermore, this table 78 also shows the number of audio streams (VMGM) in the video manager menu (VMGM).
GM_AST_Ns), video manager menu (VMGM) audio stream attribute (VMGM)
_AST_ATR), video manager menu (V
Number of sub-picture streams of MGM (VMGM_SPST)
_Ns) and video manager menu (VMGM)
Attribute of the sub-picture stream (VMGM_SPST_AT
R) is described.

Title search pointer table (TT
In the title search pointer table information (TT_SRPT) 79, as shown in FIG.
I) 92, and then input numbers 1 to n (n ≦ 9
9) Title search pointer (TT_SRP)
Are listed continuously as many times as necessary. Playback data of one title in the volume of this optical disc, for example,
When only one title of video data is stored, one title search pointer (TT_SRP) 9
Only three are listed in this table (TT_SRPT) 79.

The title search pointer table information (TT_SRPTI) 92 contains the number of title search pointers (TT_Ns) and the title search pointer table (TT_SRPT) 79 as shown in FIG.
End address (TT_SRPT_EA) is described. This address (TT_SRPT_EA) is assigned to this title search pointer table (TT_SRPT) 7
It is described by the number of bytes relative to the first byte of 9.
Further, as shown in FIG. 13, in each title search pointer (TT_SRP), the number of parts of title (PTT_Ns) as the number of chapters (the number of programs), the video title set number (VTSN), and the title number of the video title set 72 ( VTS_TTN) and start address of video title set 72 (VTS_SA)
Is described.

This title search pointer (TT_SR
P) 93, the video title set (VTS) 72 to be reproduced is specified, and the storage position of the video title set 72 is specified. The start address (VTS_SA) of the video title set 72 is
The title set specified by the video title set number (VTSN) is described by the number of logical blocks.

Details of the description contents described in the video manager menu PGCI unit table (VMGM_PGCI_UT) 81 are shown in FIGS. 14, 15 and 16.
Next, a description will be given with reference to FIGS. 17, 18 and 19.

Video manager menu PGCI unit table (VMGM_PGCI_U) shown in FIG.
T) 81 is an indispensable item when the video object set (VMGM_VOBS) 76 for the video manager menu is provided, and the program chain for reproducing the video manager menu (VMGM) provided for each language. Information is described. By referring to the video manager menu PGCI unit table (VMGM_PGCI_UT) 81, the video object set (VMGM_V)
The program chain of the designated language in the OBS) 76 can be acquired and reproduced as a menu.

This video manager menu PGCI
Unit table (VMGM_PGCI_UT) 81
Shows the video manager menu P as shown in FIG.
GCI unit table information (VMGM_PGCI_U
TI) 81A, n video manager menu language unit search pointer (VMGM_LU_SRP) 8
1B, n video manager menu language units (VMGM_LU) 81C, which are described in that order.

Video manager menu PGCI unit table information (VMGM_PGCI_UTI) 81
The information of the table 81 is described in A, and the video manager menu PGCI unit search pointer (VMGM_LU_SRP) 81B includes # 1 to #n.
The video manager menu language unit (VMGM_LU) 81C is described in the order corresponding to the video manager menus up to and the language code is described, and is described in the order corresponding to the video manager menus # 1 to #n. Describes the pointer to be searched. In addition, in each of the video manager menu language unit (VMGM_LU) 81C,
Describes the program chain category and start address of the corresponding Video Manager menu.

More specifically, the video manager menu PGCI unit table information (VMGM_PGCI
_UTI) 81A, as shown in FIG. 15, a video manager menu language unit (VMGM_LU) 8
The number of 1C is described as a parameter (VMGM_LU_Ns), and the end address of the video manager menu language unit (VMGM_LU) 81C is described as a parameter (VMGM_PGCI_UT_EA). Also, as shown in FIG. 16, the video manager menu PGCI unit search pointer (VMG
In the M_LU_SRP) 81B, the video manager menu language code is described as a parameter (VMGM_LCD), and the start address of the video manager menu language unit (VMGM_LU) 81C is described as a parameter (VMGM_LU_SA). Furthermore, the video manager menu language unit (VMGM_LU) 81C has the video manager menu language unit information (VM) as shown in FIG.
GM_LUI) 81D, Video manager menu P
GC information search point (VMGM_PGCI_SR
P) 81E and video manager menu PGC information (VMGM_PGCI) 81F, which are described in that order. The information of this table 81C is described in the video manager menu language unit information (VMGM_LUI) 81D, and (VMGM_PGCI_
SRP) 81E is described in the order corresponding to the video manager menus # 1 to #n, the category of the program chain of the video manager menu is described, and the video manager menus # 1 to #n are described. Video manager menu PGC information search information (VMGM described in the corresponding order)
_PGCI) 81F is described.

Video manager menu PGC information search information (VMGM_PGCI) 81F is information relating to the program chain of the video manager menu,
That is, VMGM program chain information (VMGM_P
GCI) is described.

More specifically, the video manager menu language unit information (VMGM_LUI) 81D includes
As shown in FIG. 18, the number of VMGM program chain information (VMGM_PGCI) 81F is the parameter (VM
GM_PGCI_Ns), and also video manager menu language unit information (VMGM_L).
The end address of the UI 81D is the parameter (VMGM_
LUI_EA). Further, as shown in FIG. 19, in the video manager menu PGC information search point (VMGM_PGCI_SRP) 81E, the category of the program chain of the video manager menu is the parameter (VMGM_PGC_CA).
T), and the start address of the VMGM program chain information (VMGM_PGCI) 81F is described as a parameter (VMGM_PGCI_SA).

In the program manager category (VMGM_PGC_CAT) of the video manager menu, a flag indicating whether or not this PGC is entered and a menu ID indicating whether it is a menu are described. When "0010" is described as the menu ID, it means a title menu.

Next, the structure of the logical format of the video title set (VTS) 72 shown in FIG. 6 will be described with reference to FIG. Each video title set (V
In the TS) 72, four items 94, 95, 96 and 97 are described in the order of description as shown in FIG. Each video title set (VTS) 72 is composed of one or more video titles having a common attribute, and management information about this video title 72, for example, information for entry search points, video object set. Information for reproducing 96, information for reproducing the title set menu (VTSM), and attribute information of the video object set 72 are described in the video title set information (VTSI).

This video title set information (VTS
I) 94 backup is video title set (VT
S) 72. Video title set information (VTSI) 94 and backup of this information (VTSI)
_BUP) 97 and the video object set (VTSM_VOB) for the video title set menu.
S) 95 and a video object set (VTSTT_VOBS) 96 for a video title set title are arranged. Which video object set (V
TSM_VOBS and VTSTT_VOBS) 95, 9
6 has the structure shown in FIG. 8 as already described.

Video title set information (VTSI) 9
4. Backup of this information (VTSI_BUP) 97
A video object set (VTSTT_VOBS) 96 for a video title set title is an essential item for the video title set 72, and a video object set (VTSTT_VOBS) 96 for a video title set menu (VTSTT_VOBS).
TSM_VOBS) 95 is an option provided as needed.

Video title set information (VTSI) 9
4 includes five tables 98, 99, as shown in FIG.
Each of the five tables 98, 99, 100, 101 and 111, which is composed of 100, 101 and 111, is aligned with the boundary between the logical sectors. Video title set information management table (VTSI_MAT), which is the first table
Reference numeral 98 is an indispensable table. The size of the video title set (VTS) 72, the video title set (VT
S) The start address of each information in 72 and the attributes of the video object set (VOBS) 82 in the video title set (VTS) 72 are described.

The second table, the video title set direct access pointer table (VTS_DA
PT) 99 is an optional table provided as necessary, and the video titles selectable according to the key operation / input of the title number from the display section 4 of the device or the selection of the title number by the remote controller 5 Program chain (PG included in set 72
C) and / or the program (PG) are described.

The third table, the video title set program chain information table (VTS_PGCI)
T) 100 is an essential table and describes VTS program chain information (VTS_PGCI).

Video title set time search map table (VTS_MAPT) 1 which is the fourth table
Reference numeral 01 is an optional table provided as necessary, and the title set 7 to which this map table (VTS_MAPT) 101 for a certain display time belongs.
Information about the recording position of video data in each program chain (PGC) 2 is described.

The fifth table, which is the video title set menu PGCI unit table (VTSM_PG
CI_UT) 111 is a video object set (VTSM_VOBS) for the video title set menu.
95 is provided, it is an indispensable item, and the video title set menu (VTS) is provided for each language.
Information about a program chain for reproducing M) is described. This video title set menu PGCI unit table (VTSM_PGCI_U
By referring to (T) 111, the program chain of the designated language in the video object set (VTSM_VOBS) 95 can be acquired and reproduced as a menu.

21 to 3 of the video title information manager table (VTSI_MAT) 98 and the video title set program chain information table (VTS_PGCIT) 100 shown in FIG.
This will be described with reference to 0.

FIG. 21 shows the description contents of the video title information manager table (VTSI_MAT) 98. In this table (VTSI_MAT) 98,
Video title set identifier (VTS_I
D), video title information size (VTSI_S
Z), the version number of this DVD video standard (VER
N), the attribute (VTS_CAT) of the title set 72 is described. Also, this table (VTSI_MAT)
In 98, the start address (VTSM_VOBS_SA) of the video object set (VTSM_VOBS) 95 of the VTS menu (VTSM) is described in a relative logical block (RLBN) from the head logical block of this video title set (VTS) 72, and the video title Start address (VTSTT_VOBS) of video object set for title in set (VTS)
_SA) is a relative logical block (RLBN) from the first logical block of this video title set (VTS) 72
Described in.

Further, this table (VTSI_MAT)
A video title set information management table (V
TSI_MAT 98 end address (VTSI_MA)
T_EA) is described by the relative number of blocks from the first byte of the table (VTSI_MAT) 98, and the video title set direct access pointer table (V
TS_PTI_SRPT) 99 start address (V
TS_SRPT_SA) is described as the relative number of blocks from the first byte of the video title set information (VTSI) 94.

Furthermore, this table (VTSI_MA
T) 98, the start address (VTS_PGCIT_SA) of the video title set program chain information table (PGCIT) 100 is described as the relative number of blocks from the first byte of the video title set information (VTSI) 94. The video title set (VTS) The start address (VTS_TMAPT_SA) of the time search map (VTS_TMAPT) 101 is described by a relative logical sector from the first logical sector of the video title set (VTS) 72. This table (VTS
I_MAT) 98 includes a video title set menu PGCI unit table (VTSM_PGCI_U).
T) start address (VTSM_PGCI_UT_
SA) is described by the relative number of blocks from the first byte of the video title set information (VTSI) 94. When there is no video manager menu PGCI unit table (VMGM_PGCI_UT) 81, “00000000h” is described in the start address.

This table (VTSI_MAT) 98 contains the video object set (VTSM_VOBS) 95 for the video title set menu (VTSM) in the video title set (VTS) 72 and the title (VTSTT) of the video title set (VTS). Video Object Set (VTST_VOBS) 9 for
6 video attributes (VTS_V_ATR) and the number of audio streams (VTS_AST_Ns) of the video object set (VTSTT_VOBS) 96 for the title (VTSTT) of the video title set in this video title set (VTS) 72 are described.

Here, the video attribute (VTS_V_AT
R) describes the compression mode of video, the frame rate of the TV system, the aspect ratio of the display when displaying on the display device, and the like.

The table (VTSI_MAT) 98 contains
Video object set (VTST_VOBS) 9 for the title (VTSTT) of the video title set (VTS) 72 in the video title set (VTS) 72
6 audio stream attributes (VTS_AST_AT
R) is described. This attribute (VTS_AST_A
TR) describes an audio encoding mode that describes how audio was encoded, how many bits were used for audio quantization, the number of audio channels, an audio language code, and the like. Further, the table (VTSI_MAT) 98 has a video object set (VTST_VOBS) 96 for this title (VTSTT) in the video title set (VTS) 72.
Number of sub-picture streams (VTS_SPST_Ns) and attributes of each sub-picture stream (VTS_SPST_AT)
R) is described. The attribute (VTS_SPST_ATR) of each sub-picture stream describes the coding mode of the sub-picture, the display type of the sub-picture, the language code of the sub-picture, and the like.

Also, this table (VTSI_MAT)
98 has a video title set menu (VTSM)
Number of audio streams (VTSM_AST_N
s), audio stream attribute (VTSM_AST_
ATR), the number of sub-picture streams (VTSM_SPST)
_Ns) and the attribute of the sub-picture stream (VTSM_S
(PST_ATR) is described.

The audio stream attribute (VTS_AST_ATR) of the video title set (VTS) includes audio coding mode, multi-channel extension, audio type, and audio application from bit number b63 to bit number b48 as shown in FIG. The ID, the quantization, the sampling frequency, the reservation, and the number of audio channels are described. The bit number b47 to bit number b40 and the bit number b39 to bit number b32 describe the language code of this audio stream as a specific code. Bit number b
A reservation for a specific code is provided from 31 to bit number b24. The bit numbers b23 to b8 are reserved for future use, and the bit numbers b7 to b0 describe application information. Here, when there is no VTS menu video object set (VTSM_VOBS) 95, or
If there is no audio stream in the video object set, bit number b63 to bit number b0
"0" is described in each bit of.

The specific codes are b47 to b40 and b3.
9 to b32, where if the type of audio stream is language, ie voice,
The code of the language defined by ISO-639 is described by a language symbol. If the type of audio stream is not language, ie audio, then this area is reserved.

In the sub-picture stream attribute (VTS_SPST_ATR) of the video object set (VTST_VOBS) 96 for VTSTT, the sub-picture coding mode, reservation, and sub-picture display are set from bit number b47 to bit number B40 as shown in FIG. The type and sub-picture type are described, and bit number b39 to bit number b3
2, the language code of the sub-picture stream is described as a specific code in the bit numbers b31 to b24, the bit numbers b23 to b16 are reserved for the specific code, and the bit numbers b15 to b15 are reserved.
Reference numeral 8 describes the extension of the specific code. Further, the bit numbers b7 to b0 are reserved.

The VTS program chain information table (VTS_PGCIT) 100 has a structure as shown in FIG. This information table (VTS_PGC
The IT 100 has a VTS program chain (VTS
_PGC) information (VTS_PGCI) is described, and the first item is the VTS program chain (VT
S_PGC) information table (VTS_PGCI)
T) 100 information (VTS_PGCIT_I) 102 is provided. This information (VTS_PGCIT_I)
102, this information table (VTS_PGCI
T) 100, this information table (VTS_PGCI
T) VTS program chain (VTS_P in 100)
VTS_PGCI searching VTS program chain (VTS_PGC) for the number of (GC) (# 1 to #n)
Search pointer (VTS_PGCIT_SRP) 103
Is provided, and finally the VTS program chain (VTS
_PGC) corresponding to each VTS (# 1 to #n)
Information (VTS_PGCI) 104 regarding the program chain (VTS_PGC) is provided.

Information (VTS_PGC) of VTS program chain information table (VTS_PGCIT) 100
The IT_I) 102 has the VTS as shown in FIG.
Number of program chains (VTS_PGC) (VTS_
PGC_Ns) is described as the content, and the end address (VTS_PGCIT_EA) of this table information (VTS_PGCIT_I) 102 is the information table (V
It is described by the relative number of bytes from the first byte of TS_PGCIT) 100.

Further, the VTS_PGCIT search pointer (VTS_PGCIT_SRP) 103 has the attribute (VTS_PC) of the program chain (VTS_PGC) of the video title set (VTS) 72 as shown in FIG.
GC_CAT) and the VTS_PGC information (VTS_PGCI) in the relative number of bytes from the first byte of the VTS_PGC information table (VTS_PGCIT) 100.
Start address (VTS_PGCI_SA) is described. Here, the VTS_PGC attribute (VTS_P
As an attribute of the GC_CAT, for example, the entry program chain (entry PG) to be reproduced first
Whether or not C) is described. Normally, the entry program chain (PGC) is described before the program chain (PGC) which is not the entry program chain (PGC).

PGC information (VT
In S_PGCI) 104, four items are described as shown in FIG. This PGC information (VTS_PG
In the CI) 104, the program chain general information (PGC_GI) 105 that is an indispensable item is described first, and then at least three items 106, 107, and 108 that are indispensable items only when there is a video object are described. Has been done. That is, the program chain program map (PGC_PGMAP) 1 as the three items
06, the cell playback information table (C_PBIT) 107 and the cell position information table (C_POSIT) 108 are set to P.
It is described in the GC information (VTS_PGCI) 104.

Program chain general information (PGC_G
As shown in FIG. 28, the I) 105 includes the category (PGC_CAT) of the program chain (PGC), the content (PGC_CNT) of the program chain (PGC), and the playback time (PGC_P) of the program chain (PGC).
B_TIME) is described. The PGC category (PGCI_CAT) describes whether or not the PGC can be copied and whether or not the program in the PGC is continuously reproduced or randomly reproduced. In the content of PGC (PGC_CNT), the configuration content of this program chain, that is, the number of programs, the number of cells, and the number of angles in this program chain are described. PGC playback time (PGC_PB_TIME)
Indicates the total playback time of the program in this PGC. This reproduction time describes the reproduction time of the program when the program in the PGC is continuously reproduced regardless of the reproduction procedure. When there is an angle mode, the reproduction time of the angle cell number 1 represents the reproduction time of that angle.

Further, the program chain general information (PG
C_GI) 105 describes PGC sub-picture stream control (PGC_SPST_CTL), PGC audio stream control (PGC_AST_CTL), and PGC sub-picture palette (PGC_SP_PLT). PGC sub-picture stream control (PGC_SPST_
The number of sub-pictures that can be used in PGC is described in CTL), and PGC audio stream control (PGC_AST
Similarly, the number of audio streams that can be used in PGC is described in _CTL). The PGC sub-picture palette (PGC_SP_PLT) describes a set of a predetermined number of color palettes used for all sub-picture streams of this PGC.

Further, PGC general information (PGC_GI) 1
05 is a cell reproduction information table (C_PBIT) 10
The start address (C_PBIT_SA) of No. 7 and the start address (C_POSIT_SA) of the cell position information table (C_POSIT) 108 are described.
Any start address (C_PBIT_SA and C
_POSIT_SA is also VTS_PGC information (VTS_SA).
It is described by the number of logical blocks relative to the first byte of (PGCI).

In the program chain (PGC) category (PGC_CAT), in the case of the menu program chain (PGC), as shown in FIG. 29, the bit number b31 describes whether the entry type is PGC entry or non-PGC entry. The bit numbers b30 to b28 are reserved as reserved for future use, and the bit number b27 to bit number b24 describe the menu ID indicating the type of the menu.
23 to bit number b22 describe the PGC block mode, bit numbers b21 to bit number b20 describe the PGC block type, bit numbers b19 to bit number b16 describe the program playback control, and bit number b15. To bit number b
14, a copy flag is described, bit system numbers b13 to b12 describe playback system management, and bit numbers b11 to b8.
Describes the application type, and bit number b
Bit number b0 from 7 is reserved for future use.

As the menu ID, "0010" indicates the title menu used in the video manager information menu (VMGM), "0011" indicates the lot menu, and "0100" indicates the video title set menu (VTSM). ) Indicates a sub-picture menu, “0101” indicates an audio menu used in a video title set menu (VTSM), “0110” indicates an angle menu used in a video title set menu (VTSM), and “0”
In case of 111 ", the video title set menu (VT
The program menu used in (SM) is shown.

When the category (PGC_CAT) of the program chain (PGC) is the program chain for title (PGC), the video title set (VTS) 72 is changed from bit number b30 to bit number b24.
The number of titles (VTS_TTN) of 1 to 99 is described.

Contents of program chain (PGC) (P
GC_CNT) has a bit number b2 as shown in FIG.
3 is reserved, and the number of programs 1 to 99 in this program chain (PGC) is described in bit number b22 to bit number b16.
From 15 to bit number b8, the number of cells from 1 to 255 in this program chain (PGC) is described, bit numbers b7 to bit number b4 are reserved for future use, and from bit number b3 to bit number b0. ,
The number of angles 1 to 9 in this program chain (PGC) is described.

Program Chain Program Map (P
GC_PGMAP) 106 is a PG as shown in FIG.
It is a map which shows the structure of the program in C. This map (PGC_PGMAP) 106 is shown in FIG. 31 and FIG.
As shown in 2, entry cell numbers (ECELLN), which are start cell numbers of the program, are described in ascending order of cell numbers. Further, program numbers are assigned from 1 in the order of description of the entry cell numbers. Therefore, the first entry cell number of this map (PGC_PGMAP) 106 must be # 1.

Cell reproduction information table (C_PBIT) 1
07 defines the playback order of PGC cells. In this cell reproduction information table (C_PBIT) 107, cell reproduction information (C_PBIT) is continuously described as shown in FIG. Basically, the cells are reproduced in the order of their cell numbers. Cell playback information (C_PB
In IT), a cell category (C_CAT) is described as shown in FIG. This cell category (C
_CAT) is a cell block mode indicating whether the cell is a cell in a cell block, or the first cell if it is a cell in a cell block, the cell is not part of the block, or Cell block type that indicates whether it is an angle block, system time clock (ST
An STC discontinuity flag indicating whether resetting in C) is necessary or not is described. Here, a cell block is defined as a set of cells at a specific angle. The change of the angle is realized by changing the cell block. That is,
Taking baseball as an example, changing the angle block that captures the scene from the infield corresponds to the change of the angle from the angle block that captures the scene from the outfield.

Also, this cell category (C_CAT)
Indicates a cell reproduction mode indicating whether the cell is continuously reproduced in the cell or is stopped in units of each video object unit (VOBU) in the cell, whether or not the cell is reproduced after the cell is reproduced, or the stationary time thereof. Cell navigation controls are described.

Further, as shown in FIG. 34, the cell reproduction information table (C_PBIT) 107 includes a cell reproduction time (C_PBTM) describing the total reproduction time of the PGC. If the angle cell block is in the PGC,
The playback time of the angle cell number 1 represents the playback time of the angle block. Further, in the cell reproduction information table (C_PBIT) 107, the head video object unit (VOBU) in the cell is indicated by the number of logical sectors relative to the head logical sector of the video object unit (VOBU) 85 in which the cell is recorded. 85 start address (C_FVOBU_SA) is described,
Also, the start address (C_LVO) of the last video object unit (VOBU) 85 in the cell is determined by the number of logical sectors relative to the first logical sector of the video object unit (VOBU) 85 in which the cell is recorded.
BU_SA) is described.

Cell position information table (C_POSI) 1
08 specifies the identification number (VOB_ID) of the video object (VOB) of the cell used in the PGC and the identification number (C_ID) of the cell. In the cell position information table (C_POSI), as shown in FIG. 35, the cell position information (C_POSI) corresponding to the cell number described in the cell reproduction information table (C_PBIT) 107 is the same as the cell reproduction information table (C_PBIT). They are listed in order. This cell position information (C_POSI) contains the information shown in FIG.
As shown in FIG. 6, the video object unit (V
The identification number (C_VOB_IDN) of the OBU) 85 and the cell identification number (C_IDN) are described.

A video title set menu PGCI unit table (VTS) describing information for each language of the video title set menu (VTSM) shown in FIG.
As shown in FIG. 37, the M_PGCI_UT) 111 includes a video title set menu PGCI unit table information (VTSM_PGCI_UTI) 111A, n video title set menu language unit search pointers (VTSM_LU_SRP) 111B, and n video title set menu language units (VTSM_L).
U) 111C and are described in that order.

Video title set menu PGCI unit table information (VTSM_PGCI_UTI) 1
11A describes the information of this table 111, and the video title set menu PGCI unit search pointer (VTSM_LU_SRP) 111B contains # 1.
Video title set menu language units (VTSM_LU) described in the order corresponding to the video title set menus from # 1 to #n and the language code described in the order corresponding to the video title set menus from # 1 to #n ) Describes the pointer for searching 111C. Also, video title set menu language unit (VTSM_LU)
In each of 111C, the category and the start address of the program chain of the corresponding video title set menu are described.

More specifically, the video title set menu PGCI unit table information (VTSM_PGC
I_UTI) 111A, as shown in FIG. 38, the video title set menu language unit (VTSM_L).
U) The number of 111C is the parameter (VTSM_LU_N
s), and the end address of the video title set menu language unit (VTSM_LU) 111C is the parameter (VTSM_PGCI_UT_E).
It is described as A). Also, as shown in FIG. 39, the video title set menu PGCI unit search pointer (VTSM_LU_SRP) 111B describes the video title set menu language code as a parameter (VTSM_LCD), and the video title set menu language unit (VTSM_L).
U) The start address of 111C is the parameter (VTSM_
LU_SA). In addition, video title set menu language unit (VTSM_LU) 1
In 11C, as shown in FIG. 40, the video title set menu language unit information (VTSM_LUI) 1
11D, video title set menu PGC information search point (VTSM_PGCI_SRP) 111E,
Video title set menu PGC information (VTSM_
PGCI) 111F and are described in that order. This table 1 is included in the video title set menu language unit information (VTSM_LUI) 111D.
11C information is described, and (VTSM_PGCI_SR
P) 111E is described in the order corresponding to the video title set menus # 1 to #n, the category of the program chain of the video title set menu is described, and the video title set menus # 1 to #n are described. Video title set menu PGC information Search information (V
The description about the pointer for searching TSM_PGCI) 111F is given.

Video title set menu PGC information search information (VTSM_PGCI) 111F is information about the program chain of the video title set menu, that is, VTSM program chain information (VTS
M_PGCI) is described.

More specifically, the video title set menu language unit information (VTSM_LUI) 111D describes the number of VTSM program chain information (VTSM_PGCI) 111F as a parameter (VTSM_PGCI_Ns), as shown in FIG. 41.
Video title set menu Language unit information (VT
The end address of the SM_LUI) 111D is described as the parameter (VTSM_LUI_EA). Also, as shown in FIG. 42, the video title set menu PGC information search point (VTSM_PGCI_S
RP) 111E contains the program chain category of the video title set menu as a parameter (VTS
M_PGC_CAT) and also VTSM program chain information (VTSM_PGCI) 111F
Is the start address of the parameter (VTSM_PGCI_S
It is described as A).

Video chain set menu program chain category (VTSM_PGC_CAT)
In the field, a flag indicating whether or not this PGC is entered and a menu ID indicating whether it is a menu are described. When "0100" is described as this menu ID, it means a sub-picture menu, and "010"
When 1 ”is described, it means an audio menu,
When "0110" is described, it means an angle menu, and when "0111" is described, it means a program menu.

The cell 84 as described with reference to FIG.
Is a set of video object units (VOBU) 85, and video object unit (VOBU) 8
5 is defined as a pack sequence starting from the navigation (NV) pack 86. Therefore, the start address (C_FVOBU_SA) of the first video object unit (VOBU) 85 in the cell 84 is the NV pack 8
6 represents the start address. As shown in FIG. 43, this NV pack 86 includes two packets as a pack header 110, a system header 111 and navigation data, that is, a reproduction control information (PCI) packet 116 and a data search information (DSI) packet 11.
It has a structure of 7 and the number of bytes as shown in FIG. 43 is assigned to each part, and one pack is defined as 2048 bytes corresponding to one logical sector. The NV pack is placed immediately before the video pack including the first data in the group of pictures (GOP). Even when the object unit 85 does not include the video pack, the NV pack is arranged at the head of the object unit including the audio pack and / or the sub-picture pack. Thus, even when the object unit does not include the video pack, the reproduction time of the object unit is determined based on the unit in which the video is reproduced, as in the case where the object unit includes the video pack.

Here, the GOP is defined by the MPEG standard, and is defined as a data string forming a plurality of screens as already described. That is, the GOP corresponds to compressed data, and by decompressing the compressed data, image data of a plurality of frames capable of reproducing a moving image is reproduced. Pack header 110 and system header 111
Is defined by the system layer of MPEG2, pack start code, system clock reference (SCR), and multiplexing rate information are stored in the pack header 110, and bit rate and stream ID are described in the system header 111. ing. Packet headers 112 and 11 of PCI packet 116 and DSI packet 117
Similarly, a packet start code, a packet length, and a stream ID are stored in 4, as defined in the system layer of MPEG2.

Other video, audio and sub-picture pack 8
8, 89, 80, 91 are MPEG as shown in FIG.
Similarly, it is composed of a pack header 120, a packet header 121, and a packet 122 in which corresponding data is stored as defined by the system layer No. 2, and its pack length is defined as 2048 bytes. Each of these packs is aligned with a logical block boundary.

The PCI data (P
The CI) 113 is navigation data for changing the presentation, that is, the display content, in synchronization with the reproduction state of the video data in the VOB unit (VOBU) 85. That is, as shown in FIG. 45, the PCI data (PCI) 113 includes PCI general information (PCI_GI) as information of the entire PCI, and angle information (NSL) as each jump destination angle information at the time of changing the angle.
S_AGLI) and highlight information (HLI) are described. The PCI general information (PCI_GI) includes the information shown in FIG.
VO in which PCI113 is recorded as shown in FIG.
The NV pack (NV_P) in which the PCI 113 is recorded is the relative number of logical blocks from the logical sector of BU85.
The address (NV_PCK_LBN) of the CK) 86 is described. The PCI general information (PCI_GI) includes the VOBU85 category (VOBU_CAT),
Start PTM of VOBU85 (VOBU_SPTM)
And end PTM (VOBU_EPTM) are described. Here, the start PTM of VOBU85 (VOBU
_SPTM) is a VOBU including the PCI 113.
The playback start time (start presentation time stamp (SPTM)) of the video data in 85 is shown. This reproduction start time is the first reproduction start time in the VOBU 85. Usually the first picture is MPE
I-picture (Intra-Pict) in G standard
ure) reproduction start time. The end PTM (VOBU_EPTM) of VOBU85 is the relevant PCI113.
Indicates the reproduction end time (end presentation time stamp (EPTM)) of the VOBU 85 including the.

In the angle information (NSML_AGLI), as shown in FIG. 47, the start address (NSML_AGL_C_DS) of the angle cell which is jumped by the number of angles is used.
TA) is described, and the start address is PCI113.
Is recorded in a relative logical sector from the logical sector of the NV pack 86 in which is recorded. This angle information (NS
ML_AGLI) in case of angle change,
As shown in FIG. 48, the start address of the VOBU 85 in another angle block equal to the playback time of the VOBU 85 in which the PCI 113 is recorded, or the VOBU 85 in another angle block having the closest playback time before the playback time. Start address (NSML_
AGL_C_DSTA is the angle information (NSML).
_AGLI).

According to the description of the start address (NSML_AGL_C_DSTA) of such an angle cell,
Specifically, the following angle changes are realized.
Here, the angle change will be described on the assumption that a series of times from the pitcher's throw to the batter's hit and the hit to the home run are continuous in a baseball game.
Here, the angle cell (ANG_C # j) controlled by the PCI 113 can be changed in units of the video object unit (VOBU) 85 as shown in FIG. In FIG. 48, the video object unit (VOBU) 85 is numbered according to the playback order, but a certain angle cell (ANG_C
The video object unit (VOBU # n) 85 corresponding to the reproduction number n of #j) is set to another angle cell (AN).
G_C # 1) 84 or an angle cell (ANG_C #)
9) A video object unit (VOBU # n) 85 having a reproduction number n corresponding to 84 stores video data relating to the closest different scene at the same time or before. An angle cell (ANG_C # j) 8
4, a full view of the pitcher and batter is displayed on the screen, and VOBUs 85 are continuously arranged as video data showing a series of motions. Also, the angle cell (ANG_C # 1) 84 is hit by the batter. In order to view the form, the VOBU 85 is continuously arranged as video data in which only the batter is projected on the screen. Furthermore, in the angle cell (ANG_C # 9), only the facial expression of the pitcher is projected on the screen as V data.
It is assumed that the OBUs 85 are arranged in series. First, if the user changes the angle cell # 1 (AGL_C # j) to the angle cell # 1 at the moment when the user is watching it and hits it,
That is, if you change the angle to the angle that only the batter appears at the moment you hit, the screen will not change to the screen of only the batter after hitting, but the screen after the batter before the hit begins to swing the bat. Becomes In addition, if the angle cell #j (AGL_C # i) was first viewed and then changed to the angle cell # 9 at the moment of hitting, that is, if the angle was changed to an angle at which only the pitcher was projected, then the angle was hit. The momentary struck expression of the pitcher is displayed on the screen, allowing you to appreciate the psychological changes of the pitcher.

The highlight information (HLI) is information for highlighting one rectangular area in the display area of the sub-picture. The highlight information describes the color of the sub-picture in a specific rectangular area in the display area of the sub-picture and the mixing ratio (contrast) with the video. As shown in FIG. 49, the highlight information is commonly valid for all sub-picture streams reproduced within the valid period. For example, when a video, a sub-picture, and highlight information are combined, a composite screen as shown in FIG. 50 is displayed on the monitor unit 6.

The highlight information is as shown in FIG.
A highlight general information (HL_GI) 113A, a button color information table (BTN_COLIT) 113B, and a button information table (BTNIT) 113C are described. As shown in FIG. 52, the button color information table (B
TN_COLIT) 113B includes button color information (BT
N_COLI) 113D, 113E, 113F are described, and the button information table (BTNIT) 113C contains
Up to 36 pieces of button information (BTNI) 113I, ... Are described.

For example, as shown in FIG. 52, 36 pieces of button information (BTNI) 113I, ...
It is described in a group mode, a 2-group mode composed of 18 pieces of button information, and a 3-group mode composed of 12 pieces of button information.

Highlight general information (HL_GI) 113
A is information of the entire highlight information. In the highlight general information (HL_GI) 113A, as shown in FIG. 53, the state of highlight information (HLI_SS), highlight start time (HLI_S_PTM), highlight end time (HLI_E_PTM), button selection end time (BTN_SL_E_PTM). , Button mode (BT
N_MD), button start number (BTN_SN), number of valid buttons (BTN_Ns), number of buttons that can be selected by number (NSBTN_Ns), forced selection button number (FSL)
BTN_N), forced confirmation button number (FACBTN_
N) is described.

The state of highlight information (HLI_SS) describes the state of highlight information in the corresponding PCI. For example, in the case of "00", it is described that valid highlight information does not exist, and in the case of "01", the previous V
It is described that the highlight information different from the highlight information of the OBU exists. When it is "10", it is described that the same highlight information as the highlight information of the previous VOBU exists, and when it is "11". , It is described that the highlight information of the previous VOBU differs from the highlight information of the previous VOBU.

Start of highlight information PTM (HLI
_S_PTM) describes the highlight start time (start presentation time (SPTM)) at which the corresponding highlight information becomes valid. The highlight start time is equal to or longer than the display start time of the sub video stream targeted by the highlight information. When HLI_SS is described as "01", the highlight start time of highlight information is during the VOBU corresponding to the PCI.
It will be updated. HLI_SS is “10”
Alternatively, when "11" is described, the highlight start time of highlight information is the VOB to which the PCI corresponds.
It is used without interruption during U.

Highlight end time (HLI_E_PT
M) describes the highlight end time when this highlight information becomes invalid. The highlight end time is less than or equal to the display end time of the sub-picture stream targeted by the highlight information. When HLI_SS is described as "01", the highlight end time of the highlight information is updated during the VOBU corresponding to the PCI. HLI_SS is “10” or “1”
If it is described as "1", the highlight end time of the highlight information is used without interruption during the corresponding VOBU of the PCI. While the HLI is in the stationary state, the highlight end time. (FFFFFFFFh) is described as (HLI_E_PTM).

Button selection end time (BTN_SL_E_
PTM) describes the end time of button selection. The button selection end time is less than or equal to the display end time of the sub-picture stream targeted by the highlight information.
When HLI_SS is described as "01", the button selection end time of the highlight information is updated during the VOBU corresponding to the PCI. HLI_
When SS is described as "10" or "11", the button selection end time of highlight information is the PCI.
Are used without interruption during the corresponding VOBU. While the HLI is stationary, the button selection end time (BTN_SL_E_PTM) is set to (FFFFFFFF).
FFh) is described.

The button mode (BTN_MD) describes the grouping of buttons and the display type of the sub-picture corresponding to each group. For example, the number of button groups (BTNGR_Ns), the display type of the sub-picture corresponding to the button group 1 (BTNGR1_DSPTY), the display type of the sub-picture corresponding to the button group 2 (BTNG)
R2_DSPTY) and the display type (BTNGR3_DSPTY) of the sub-picture corresponding to the button group 3 are described. The number of button groups (BTNGR_Ns) is
In the case of “01”, there are 1 group, in the case of “10”, there are 2 groups, and in the case of “11”, there are 3 groups. When the display type is "01", it is wide (9/1
6) In the case of "10", letterbox is used, and in the case of "11", pan-scan is used.

The button start number (BTN_SN) describes the offset number of the first button in the button group. The offset number can be described in the range of 1 to 255. Button start number (BTN_
SN) is commonly applied to each button group.

The number of valid buttons (BTN_Ns) describes the number of valid buttons in the button group. The number of buttons is 1 to 36 if the button group is 1.
If the button group is 2, it can be described in the range of 1 to 18, and if the button group is 3, it can be described in the range of 1 to 12. The number of valid buttons (BTN_Ns) is commonly applied to each button group.

Number of buttons that can be selected by number (NSBTN_
Ns) describes the number of buttons that can be selected by the button number in the button group. The number of buttons is 1 to 36 when the button group is 1, and the number of button groups is 2.
, 1 to 18, button group 3
It can be described in the range of 1 to 12. The number of buttons (NSBTN_Ns) that can be selected by number is commonly applied to each button group.

Forced selection button number (FSLBTN_N)
Describes a button number that is forcibly selected at the highlight start time (HLI_S_PTM). Thus, even if the presentation starts during the highlight valid period, the button number set in the highlight information is selected. The button numbers range from 1 to 36 and 63 when the button group is 1, and range from 1 to 18 and 63 when the button group is 2.
If the button group is 3, the range from 1 to 12 and 6
It can be described in 3. Forced selection button number (FSLBT
N_N) is commonly applied to each button group.

Forced confirmation button number (FACBTN_N)
Button selection end time (BTN_SL_E_PT
In M), the button number forcibly set to the confirmed state is described. The button numbers are 1 to 36 and 63 when the button group is 1, and 2 when the button group is 2.
When the button group is 3, the range from 1 to 18 and 63 can be described by the range from 1 to 12 and 63. The forced confirmation button number (FACBTN_N) is commonly applied to each button group.

Button color information table (BTN_COLI
T) 113B, as shown in FIG. 54, has three pieces of button color information (BTN_COLI) 113D, 113E, 113.
F is described. Button color information (BTN_COLI) 1
13D, ... in the order of description, button color number (BTN_COL
N) is assigned from 1. Button color information (BTN_
54, selected color information (SL_COLI) 113G and fixed color information (AC_COLI) 113H are described in each of the COLI) 113D ,. The selected color information (SL_COLI) 113G describes the color and contrast to be changed when the button is in the selected state. The confirmed color information (AC_COLI) 113H describes the color and contrast to be changed when the button is in the confirmed state. The selection state of the button is a state in which the selection color is displayed. In this state, the user can change the highlighted button to another button. The button confirmation state is a state in which the confirmation color is displayed and the button command is executed. In this state, the user is prohibited from changing the highlighted button to another button.

As shown in FIG. 55, the selected color information (SL_COLI) 113G includes the selected color code of the highlighted pixel 2,
The selection color code of the emphasis pixel 1, the selection color code of the pattern pixel, the selection color code of the background pixel, the selection contrast of the emphasis pixel 2, the selection contrast of the emphasis pixel 1, the selection contrast of the pattern pixel, and the selection contrast of the background pixel are described. ing.

As shown in FIG. 56, the fixed color information (AC_COLI) 113H contains the fixed color code of the emphasized pixel 2.
The definite color code of the emphasized pixel 1, the definite color code of the pattern pixel, the definite color code of the background pixel, the definite contrast of the emphasizing pixel 2, the definite contrast of the emphasizing pixel 1, the definite contrast of the pattern pixel, and the definite contrast of the background pixel are described. ing.

Button information table (BTNIT) 113
In C, as shown in FIG. 57, 36 pieces of button information (B
TNI) 113I, ... Are described. According to the description content of the number of button groups (BTNGR_Ns), one button group mode (BTNI) 113I in which all 36 button information items (BTNI) 113I, ... Are valid in the order described in the button information table (BTNIT). ,
It is possible to use three modes of two group modes grouped by ..., Button information (BTNI) 113I of 12 units, and three group mode grouped by ... Since the description area of the button information (BTNI) 113I in each group mode is fixed, zero is described in all areas in which no valid button information (BTNI) 113I exists. In the order of description of the button information (BTNI) 113I in each button group, the button number (BT
NN) is assigned from 1.

In the button group, the buttons for which the user number can be specified are from BTN_ # 1 to NSBTN_Ns, which are numbers having values described in NSBTN_Ns.

In the button information (BTNI) 113I, as shown in FIG. 57, the button position information (BTN_POS).
I) 113J, adjacent button position information (AJBTN_P
I) 113K and button command (BTN_CMD) 1
13L is described.

Button position information (BTN_POSI) 11
In 3J, as shown in FIG. 58, the color numbers (1 to 3) used by the buttons and the display rectangular area on the video display screen are described. Button position information (BTN_POSI) 11
3J has a button color number (BTN_COL
N), the start X coordinate of the rectangular area in which the button is displayed (St
art X-coordinate), the end X coordinate of the rectangular area in which the button is displayed (End X-coordinate)
state), the starting Y coordinate of the rectangular area in which the button is displayed (Start Y-coordinate), and the ending Y coordinate of the rectangular area in which the button is displayed (End Y-coo).
rdinate) and automatic operation mode (Auto
(action mode) is described. The auto operation mode describes whether the selected state is not maintained, or whether the selected state or the fixed state is maintained.

Adjacent button position information (AJBYN_POS
I) 113K describes the button numbers located in the four directions of up, down, left and right and whether or not the target button has the selected state. A button that does not have a selected state is a button that immediately transitions to the confirmed state without being in the selected state when moving to the target button. For example, the upper button number, the lower button number, the left button number, and the right button number are described. It corresponds to the instruction of the select key 5m.

Button command (BTN_CMD) 113
In L, a command to be executed when the button is confirmed is described. According to this command, for example, a program chain for shifting to another selection screen or a program chain for reproducing a title is designated.

D of the DSI packet 117 shown in FIG.
The SI data (DSI) 115 is a VOB unit (VO
BU) 85 is navigation data for executing a search. FIG. 59 shows the DSI data (DSI) 115.
, DSI general information (DSI_GI), angle information (SML_AGLI), VOB unit search information (VOBU_SRI), and synchronous playback information (SYNC).
I) is described.

The DSI general information (DSI_GI) describes information on the entire DSI 115. That is, FIG.
As shown in 0, the DSI general information (DSI_GI) includes
System time reference reference value of NV pack 86 (NV_PC
K_SCR) is described. The system time reference value (NV_PCK_SCR) is stored in the system time clock (STC) incorporated in each unit shown in FIG. 1, and the video, audio and sub-picture packs are stored as video, audio and sub-picture on the basis of this STC. The video and audio are decoded by the decoder units 58, 60 and 62, and reproduced on the monitor unit 6 and the speaker unit 8. In the DSI general information (DSI_GI), the start of the NV pack (NV_PCK) 86 in which the DSI 115 is recorded with the relative logical sector number (RLSN) from the first logical sector of the VOB set (VOBS) 82 in which the DSI 115 is recorded. Address (NV_PCK_LBN) is described and VO
The address (VOBU_EA) of the last pack in the VOB unit (VOBU) 85 in which the DSI 115 is recorded is described with the relative logical sector number (RLSN) from the first logical sector of the B unit (VOBU).

Furthermore, in the DSI general information (DSI_GI), the VOB unit (V
V pack (V_PC) in which the last address of the first I picture in this VOBU is recorded with the relative logical sector number (RLSN) from the first logical sector of OBU).
K) VOBU8 in which the end address (VOBU_IP_EA) of 88 is recorded and the DSI 115 is recorded.
3 identification number (VOBU_IP_IDN) and the DS
Identification number of cell in which I115 is recorded (VOBU_
C_IDN) is described.

The angle information (SML_AGLI) includes
Similar to the angle information (NSML_AGLI) of the PCI 113, as shown in FIG. 61, the start address (SML_AGL_C_DS) of the angle cell at the jump destination by the number of angles is displayed.
TA) is described, and the start address is the relevant DSI1.
15 is described as a relative logical sector from the recorded logical sector of the NV pack 86. In the case of changing the angle based on this angle information (SML_AGLI), as shown in FIG. 62, the start address of the cell 84 in another angle block after the reproduction time of the VOBU 85 in which the DSI 115 is recorded is the angle information. It is described in (SML_AGLI).

DSI angle information (SML_AGL
When I) is used, the PCI can be changed in the video object unit (VOBU), but the angle is changed in cell units, and the scene is continuously changed in time. That is, the PSI angle information (SML_AGL
I) describes a temporally discontinuous angle change, whereas the DSI angle information (SML_AGLI) describes a temporally continuous angle change. If the concrete example of the angle is explained using the above-mentioned baseball example, the following change of the angle is realized. The angle cell #j (AGL_C # j) 84 is a stream of image data in which the pitcher throws the ball, the batter hits the ball, and a series of scenes in which the ball hits the home run is captured from the infield side. Let us assume that a similar scene is an image data stream captured from the outfield side. In addition, it is assumed that the angle cell # 9 is an image data stream obtained by photographing the state of the team to which the batter belongs in the same scene. If angle cell #j (AGL_C # j) is viewed and changed to angle cell # 1 at the moment of hitting, that is, if the scene from the outfield side is changed at the moment of hitting, it will be continuous in time after the batter's hit. You can change to a screen where a hit ball flies to the outfield. In addition, if you change to angle cell # 9 at the moment when you are watching the angle cell #j (AGL_C # i) and start a home run, that is, if you change the angle to show the situation of the team to which the batter belongs, you will get a home run. The state of the team and the facial expression of the manager who were in a fuss are displayed on the screen. Thus, the PCI 113 angle information (NSML_AGL
I) and angle information of DSI115 (SML_AGL
When I) is used, a clearly different scene will be reproduced.

Search information of VOBU85 (VOBU_S
In I), as shown in FIG. 63, information for specifying the head address in the cell is described. That is, in the search information (VOBU_SI) of the VOBU 85, as shown in FIG. 63, the VOB unit (VOBU) including the DSI 115 concerned.
According to the reproduction order of 85, the forward address [data] (FWDAnn) is +1 to +20, +
VOB units up to 60, +120 and +240 (V
The start address (A_FWDn) of [OBU] 85 [presence / absence and if present] is described by the number of logical sectors relative to the head logical sector of the VOB unit.

This forward address (FWDAn)
Is represented by 32 bits as shown in FIG. 64, and from the bit number 29 (b29) to the bit number 0 (b0), its address, for example, the forward address 10 (FWD
A10) address is described, and a flag (V_FWD_Exist1) indicating whether or not there is video data in the video object unit (VOBU) 85 corresponding to the forward address (FWDAn) of the forward address (FWDAn) at the beginning of the forward address (FWDAn). ) And a flag (V_FWD_Exist2) indicating whether there is video data between the video object and the forward destination video object unit. That is, V_FWD_Exist1 is the bit number (b
31) and when this flag is 0, there is no video data in the video object unit (VOBU) 85 specified by the forward address (FWDANn) described in bit number 29 to bit number 0. When this flag is 1, it means that there is video data in the video object unit (VOBU) 85 specified by the forward address (FWDANn) described in bit number 29 to bit number 0. Means For example, the forward address 10 (FW
If DA10) has video data, bit 31
No. V_FWD_Exist1 has a flag of 1, and if there is no video data at that address, 0 is described in V_FWD_Exist1 of bit 31. When V_FWD_Exist2 corresponds to the bit number (b30) and this flag is 0,
Between the video object unit (VOBU) 85 specified by the forward address (FWDAn) described in bit number 29 to bit number 0 and the video object unit (VOBU) 85 including the DSI 115 describing this forward address. Means that there is no video data in any of the video object units (VOBU) 85 of the above, and when this flag is 1, the video object unit (VOBU)
Reference numeral 85 means that the video data is any video object unit in the meantime. For example, the forward 1 between the video object unit of the forward address 10 (FWDA10) and the video object unit 85 including the DSI 115 describing the forward address 10 corresponding to the forward address 0.
If there is video data in a plurality of video object units corresponding to the forward 9 to forward 9, a flag of 1 is set in V_FWD_Exist2 of bit 30
If there is no video data at that address, 0 is described in V_FWD_Exist2 of bit 30.

Similarly, in the search information (VOBU_SI) of the VOBU 85, as shown in FIG.
Based on the VOB unit (VOBU) 85 including I115, backward data (BW
DA) as -1 to -20, -60, -120 and-
The start address (A_BWDn) of the VOB unit (VOBU) 85 up to 240 is the VOB unit (V
It is described as the number of logical sectors relative to the first logical sector of OBU) 85.

This backward address (BWDAN
n) is expressed by 32 bits as shown in FIG. 65, and the bit number 29 (b29) to the bit number 0 (b0) indicates its address, for example, the backward address 10
The address of (BWDA10) is described, and at the beginning of the backward address (BWDANn), it is indicated whether the video data is in the video object unit (VOBU) 85 corresponding to the backward address (BWDANn). Flag (V_BWD_Ex
ist1) and a flag (V_BWD_Exist2) indicating whether there is video data between the video object and the backward video object unit. That is, if V_BWD_Exist1 corresponds to the bit number (b31) and this flag is 0, the video object unit (VOBU) specified by the backward address (BWDANn) described in bit number 29 to bit number 0. 85 indicates that there is no video data. When this flag is 1, the video object unit (VOBU) specified by the backward address (BWDANn) described in bit number 29 to bit number 0. Reference numeral 85 means that there is video data. For example, when there is video data in the backward address 10 (BWDA10), a flag of 1 is set in V_BWD_Exist1 of bit 31, and when there is video data in that address, V_BWD_Exist of bit 31 is set.
0 is described in 1. Also, V_BWD_Exis
t2 corresponds to the bit number (b30), and this flag is 0
, The video object unit (VOBU) 85 specified by the backward address (BWDANn) described in bit number 29 to bit number 0 and the DSI 115 describing this backward address.
Means that there is no video data in any of the video object units between the video object unit and the video object unit in which the video data is included in the video object unit (VOBU) 85. It means that there is. For example, a video object unit 8 between a video object unit of backward address 10 (BWDA10) and a backward address 10 corresponding to backward address 0.
Bit 3 if there is video data in any of 5
A flag of 1 is set in the 0th V_BWD_Exist2, and when there is no video data at that address, 0 is described in the V_BWD_Exist2 of the 30th bit.

The synchronization information (SYNCI) contains DSI11.
Address information of sub video and audio data to be reproduced in synchronization with the reproduction start time of the video data of the VOB unit (VOBU) including 5 is described. That is, FIG.
, The relative number of logical sectors from the NV pack (NV_PCK) 86 in which the DSI 115 is recorded (R
LSN) target audio pack (A_PCK)
The 91 start address (A_SYNCA) is described. When there are a plurality of audio streams (maximum 8), synchronization information (SYNCI) is described by that number.
Also, in the synchronization information (SYNCI), the address (SP_SYNCA) of the NV pack (NV_PCK) 86 of the VOB unit (VOBU) 85 including the target audio pack (SP_PCK) 91 is recorded in the NV pack (NV_PCK). ) 86 relative logical sector number (RLSN). When there are a plurality of sub-picture streams (maximum 32), synchronization information (SYNCI) is described by that number.

A sub-picture unit composed of sub-picture data of a plurality of sub-picture packets will be described with reference to FIG. It is possible to record a sub-picture unit as data (for example, subtitles) of a still picture for more than ten screens in one GOP. The sub-picture unit includes a sub-picture unit header (SPUH), pixel data (PXD) including run length data, and a display control sequence table (DC).
SQT).

The sub-picture unit header (SPUH) contains
As shown in FIG. 68, the size of the sub-picture unit (SPD
SZ) and the start address (SPDCSQTA) of the display control sequence table are described.

Display control sequence table (DCSQ
In T), as shown in FIG. 69, the display control sequence (DCSQ) is described in order of elapsed time.

In each display control sequence (DCSQ),
As shown in FIG. 70, the start address (SPNDCSQA) of the next display control sequence and one or more display control commands (SPDCCMD) are described.

The display control command (SPDCCMD) is
Set compulsory display start timing of pixel data Command
Do (FSTA DSP), pixel data display starter
Set Imming command (STA DSP), pixel day
Command to set the display end timing of the data (STP D
SP), command to set pixel data color code (S
ET COLOR), a contra of pixel data and main video
Command to set the strike ratio (SET CONTR), pixel de
Command to set the display area of the data (SET DARE
A), Set display start address of pixel data Command
DO (SET DSPXA), color change of pixel data and
Contrast change setting command (CHG COLCO
N), display control command end command (CMD EN
D).

Command (STA The DSP is an instruction for designating the start of display of sub-picture data, and is described by the offset PTM from the PTM described in the sub-picture packet including the sub-picture unit header (start PT).
M). Command (STP The DSP) is an instruction for designating the stop of the display of the sub-picture data, and is described by the offset PTM from the PTM described in the sub-picture packet including the sub-picture unit header (stop PTM).

This start PTM and stop PTM are
It is set with a delay of an arbitrary predetermined time from the PTM of the main video data and audio data reproduced in the simultaneous time zone.

The system processor section 54 shown in FIG.
Has a packet transfer processing unit 200 that determines the type of packet and transfers the data in the packet to each decoder. This packet transfer processing unit 200 is shown in FIG.
As shown in, the memory interface unit (memory I /
F part) 191, stuffing length detection part 192, pack header end address calculation part 193, pack type determination part 1
It includes a packet data transfer control unit 195, a packet data transfer control unit 195, and a decoder interface unit (decoder I / F unit) 196.

The memory I / F unit 191 uses the data bus to store the pack data from the data RAM unit 56 through the stuffing length detection unit 192, the pack type determination unit 194, the packet data transfer control unit 195, and the decoder I / F unit 1.
It is output to 96.

The stuffing length detection unit 192 detects how many bytes the stuffing length is in the pack header 120 in the pack data supplied from the memory I / F unit 191. The detection result is the pack header. It is output to the end address calculation unit 193.

Pack header end address calculation unit 193
Calculates the pack header end address based on the stuffing length supplied from the stuffing length detection unit 192. The calculation result is the pack type determination unit 19
4 and the packet data transfer control unit 195.

The pack type discrimination unit 194 is supplied next to the address in the pack data supplied from the memory I / F unit 191 according to the pack header end address supplied from the pack header end address calculation unit 193. Video pack 8 depending on the contents of 4 bytes
8, the audio pack 91, the sub-picture pack 90, and the NV pack 86 are discriminated, and the discrimination result is output to the packet data transfer control unit 195.

The packet data transfer control unit 195 determines the transfer destination and packet start according to the pack header end address supplied from the pack header end address calculation unit 193 and the pack type judgment result supplied from the pack type judgment unit 194. The address is determined, and further the packet length in the packet header 121 of the supplied pack data is determined. Furthermore, the packet data transfer control unit 1
The reference numeral 95 supplies a signal indicating a transfer destination as a transfer control signal to the decoder I / F unit 196, and a packet end address from the packet start address to the memory I / F unit 191.

The decoder I / F unit 196 is supplied from the memory I / F unit 191 under the control of the packet data transfer control unit 195 according to the transfer control signal supplied from the packet data transfer control unit 195. Video data, audio data, and sub-picture data as packet data including 121 are output to the corresponding decoder units 58, 60, 62, and navigation data and computer data as packet data are output to the data RAM unit 56. It is a thing.

Next, the processing of the packet transfer processor 200 will be described.

That is, the pack data read from the data RAM section 56 is transferred via the memory I / F section 191 to the stuffing length detecting section 192, the pack type discriminating section 194,
Packet data transfer control unit 195 and decoder I /
It is supplied to the F section 196.

Accordingly, the stuffing length detector 19
2, the stuffing length is detected, and data indicating the stuffing length is output to the pack header end address calculation unit 193.

The pack header end address calculation unit 193 calculates the pack header end address based on the supplied stuffing length, and this pack header end address is the pack type determination unit 194 and the packet data transfer control unit 19
5 is supplied.

According to the supplied pack header end address, the pack type discriminating unit 194 determines the NV pack 86, the video pack 88, and the Dolby AC3 audio pack according to the contents of the 4 to 6 byte data supplied next to the address. 91, linear PCM audio pack 9
1 or the sub-picture pack 90 is discriminated, and the discrimination result is supplied to the packet data transfer control unit 195.

That is, when the 1-byte stream ID indicating the private stream 2 is supplied, it is determined to be the NV pack 86, the 1-byte stream ID indicating the video stream is determined to be the video pack 88, and the private stream 1 is indicated. 1-byte stream ID
Therefore, it is determined that the audio pack 91 is the Dolby AC3 audio pack 91, the linear PCM audio pack 91, or the sub-picture pack 90.

When the stream ID is the private stream 1, the sub-stream ID following the packet header 121 is used to determine an audio pack of linear PCM,
It is determined that the stream is a Dolby AC3 audio pack or a sub-picture stream, and the stream number is determined.

Then, the packet data transfer control unit 195
Determines the transfer destination and the packet start address according to the supplied pack type determination result and the pack header end address, and further determines the packet length in the packet header 121 of the supplied pack data. This allows
The packet data transfer control unit 195 outputs a signal indicating a transfer destination as a transfer control signal to the decoder I / F unit 19
6, and the packet end address is supplied to the memory I / F unit 191 from the packet start address.

Therefore, substantially effective packet data is transmitted from the memory I / F unit 191 via the data bus.
It is supplied to the decoder I / F unit 196, and then each of the decoder units 58, 60, 62 as transfer destinations according to the type.
Alternatively, it is transferred to the data RAM section 56.

That is, the packet data of the video data is transferred to the video decoder unit 58, the packet data of the audio data is transferred to the audio decoder unit 60, and the packet data of the sub video data is transferred to the sub video decoder unit 62.

At this time, since the pack data has a constant length, the storage state in the data RAM section 56 is, that is, the start addresses are at regular intervals, so that the head of the pack data in the data RAM section 56 is always at the same interval address. Since it is saved, the pack data management does not have to manage the address, but only the pack number.

In the process of determining the type of data, if the data is PCI data and DSI data as NV data indicating the reproduction position of the video data, this NV data is used.
The data is not transferred to the decoder and this NV data is
It is stored in the data RAM unit 56. This NV data is
It is referred to by the system CPU unit 50 as necessary and is used when performing special reproduction of video data. At this time, the PCI data and the DSI data are identified by the substream ID given to them.

When the reproduction of one cell is completed, the cell information to be reproduced next is obtained from the cell reproduction order information in the program chain data, and the reproduction is similarly continued.

The sub-picture decoder section 62 shown in FIG. 1 performs a decoder 62B for decoding the sub-picture data supplied from the system processor section 54 and a highlight process for the sub-picture data after the decoding by the decoder 62B. A highlight processing unit 62C is provided. The highlight processing unit 62C is the same as the system CP described above.
The highlight processing is performed according to the X and Y coordinate values, the color code, and the color / contrast value of the highlight, which indicates the rectangular area in which the selection items as the highlight information supplied from the U unit 50 are displayed.

The decoder 62B expands the pixel data, which is compressed by the run length compression as the sub-picture data, according to the emphasized pixel, the pattern pixel, the background pixel and the like.

As shown in FIG. 72, the highlight processing section 62C has a highlight area setting / determining section 180, a default color / contrast setting section 181, and a highlight color /
It is composed of a contrast setting unit 182, a selector 183, and a color palette register 184.

The highlight area setting / determining section 180 indicates X and Y coordinate values indicating a rectangular area (designated highlight area) in which the selection items by the system CPU section 50 are displayed and X obtained by raster scanning. The specified highlight area is determined based on the Y coordinate value, that is, the pixel data X and Y coordinate values, and a switching signal indicating a highlight section is output, and the output is supplied to the selector 183.

Default color / contrast setting unit 181
Is for setting the default display color and contrast for each pixel included in the sub-picture data.

Highlight color / contrast setting unit 182
Is for setting the highlight color and the contrast value by the system CPU unit 50.

The selector 183 sets the highlight area /
In response to a switching signal from the determination unit 180, the default display color and contrast from the default color / contrast setting unit 181 are selectively set to the color palette register 18
4 or the color and contrast at the time of highlighting from the highlight color / contrast setting unit 182 are output to the color palette register 184.

The color palette register 184 outputs a signal corresponding to the color and contrast supplied from the selector 183.

Therefore, when the highlight area setting / determining unit 180 determines that the area is not the highlight area, the selector 183 causes the default color / contrast setting unit 181 to display the default display color and contrast for each pixel data. Is received and output to the color palette register 184, and the color signal from the color palette register 184 is output to the D / A & reproduction processing unit 64.

Also, the highlight area setting / determining section 1
When it is determined by 80 that the pixel is in the highlight area, the selector 183 receives the highlight display color and contrast for each pixel data from the highlight color / contrast setting unit 182, and the color palette register 18
4 and the color signal from the color palette register 184 is output to the D / A & reproduction processing unit 64.

Next, referring to FIG.
The optical disc 10 having the logical format shown in FIGS. 6 to 66 will be described with reference to FIG. In FIG. 1, solid arrows between blocks indicate data buses, and broken arrows indicate control buses.

In the optical disk device shown in FIG. 1, when the power is turned on and the optical disk 10 is loaded,
System ROM and RAM 52 to system CPU
The unit 50 reads the initial operation program and operates the disk drive unit 30. Therefore, the disk drive unit 30 starts the read operation from the lead-in area 27, and the volume and file structure area 70 that follows the lead-in area 27 and defines the volume and file structure in accordance with ISO-9660 or the like is read. . That is, the system CPU unit 50 gives a read command to the disk drive unit 30 in order to read the volume and file structure area 70 recorded at a predetermined position of the optical disk 10 set in the disk drive unit 30, and the volume and file are read. The contents of the structure area 70 are read out and temporarily stored in the data RAM section 56 via the system processor section 54. The system CPU unit 50 is a data RAM unit 5.
Information such as the recording position, recording capacity, and size of each file and other management information as information necessary for management are extracted via the path table and directory record stored in 6 and stored in a predetermined location of the system ROM & RAM section 52. Transfer and save.

Next, the system CPU section 50 refers to the information on the recording position and recording capacity of each file from the system ROM & RAM section 52 to obtain the video manager 71 composed of a plurality of files starting from the file number 0. That is, the system CPU unit 50 is a system ROM
Also, a read command is given to the disk drive unit 30 by referring to the information on the recording position and the recording capacity of each file acquired from the RAM unit 52, and the positions of a plurality of files forming the video manager 71 existing on the root directory and The size is acquired, the video manager 71 is read out, and is stored in the data RAM unit 56 via the system processor unit 54.

After this, the system CPU section 50 operates as shown in FIG.
As shown in the flow charts 3 and 74, the optical disc 1
The total number of titles in 0, the number of chapters (the number of programs) for each title, the number of audio streams for each title and the language of the audio stream, the number of sub-picture streams for each title, and the language of the sub-picture stream are detected.

That is, the system CPU section 50 searches the title search pointer table (TT_SRPT) 79 which is the second table of the video manager 71 (step S51). System CPU section 50
Is the title search pointer table (TT_SRP
T) 79 in the title search pointer table information (TT_SRPTI) 92, the number of title search pointers (TT_Ns) allows the optical disc 10
The total number of titles is obtained (step S52).

Further, the system CPU section 50 uses the part-of-title number (PTT_Ns) as the chapter number (program number) described in each title search pointer (TT_SRP) 93 in the title search pointer table (TT_SRPT) 79. Obtain the number of chapters (number of programs) for each title (step S5)
3).

Also, the system CPU section 50 causes the start address (VT) of the video title set 72 described in each title search pointer (TT_SRP) 93.
S_SA) first of each video title set 72 using
Video title set information (VT
SI) 94 video title set direct access pointer table (VTS_PTT_SRPT) 99
Is searched (step S54). The system CPU unit 50 obtains the number of audio streams for each title by the number of audio streams (VTS_AST_Ns) described in the table (VTS_DAPT) 99 for each video title set 72, and by the number of sub-picture streams (VTS_SPST_Ns). Obtain the number of sub-picture streams for each title (step S5)
5).

Further, the system CPU section 50 uses the table (VTS_DAP) for each video title set 72.
T) 99 audio stream attributes (VTS_AST
The language for each audio stream of each title is obtained from the audio language code for each audio stream described in _ATR) (step S56).

Also, the system CPU section 50 uses the table (VTS_DAP) for each video title set 72.
T) 99 sub-picture stream attribute (VTS_SPST_
The language for each sub-picture stream of each title is obtained from the sub-picture language code for each sub-picture stream described in ATR) (step S57).

Also, the system CPU section 50 uses the video manager information (VMGM) of the video manager 71.
The fourth table in 75 is the video manager menu PGCI unit table (VMGM_PGC
I_UT) 81 is searched (step S58). The video manager menu PGCI unit search pointer (VMGM_LU) in which the same language code as the language set in the playback device is described by this search
_SRP) 81B is searched (step S59).

When the video manager menu PGCI unit search pointer (VMGM_LU_SRP) 81B in which the same language code is written is searched, the system CPU section 50 causes the pointer (VMGM).
_LU_SRP) 81B corresponding to each video manager menu PGC information search pointer (VMGM_PGCI_SRP) 81E in the video manager menu language unit (VMGM_LU) 81C. A search is performed (step S60), and it is determined whether or not the main menu as the root menu is present by this search and whether or not a title menu (video title set menu) is present (step S61).

When the main menu exists, the system CPU section 50 causes the menu I of the root menu to be displayed.
Video manager menu PGC with D
Information search pointer (VMGM_PGCI_SRP) 8
The start address of the VMGM program chain information (VMGM_PGCI) 81F described in one of the 1E is changed by the parameter (VMGM_PGCI_SA) to the corresponding VMGM program chain information (VMGM_PG).
CI) 81F, the contents of the VMGM program chain information (VMGM_PGCI) 81F are read, and the start video object unit (VOBU) 8 is read.
Memory table 5 with the start address (C_FVOBU_SA) of 5 as the start address of the main menu
6A is stored (step S62).

When the title menu exists, the system CPU section 50 causes the video manager menu PGC information search pointer (VMGM_PGCI_) in which the menu ID of the title menu is described.
The start address of the VMGM program chain information (VMGM_PGCI) 81F described in one of the SRP) 81E corresponds to the corresponding VMGM program chain information (VM) by the parameter (VMGM_PGCI_SA).
(GM_PGCI) 81F, read the contents of this VMGM
Program chain information (VMGM_PGCI) 81F
The first video object unit (V
OBU) 85 start address (C_FVOBU_S
A) is stored in the memory table 56A as the start address of the title menu (step S63).

Also, the system CPU section 50 causes the video title set menu PGCI unit table (VT) in the video title set information (VTSI) 94 which is the first table for each video title set 72.
The SM_PGCI_UT) 111 is searched (step S64). By this search, the video title set menu PGCI unit search pointer (VTSM_LU_SRP) 111B in which the same language code as the language set in the playback device is described is searched (step S65).

When the video title set menu PGCI unit search pointer (VTSM_LU_SRP) 111B in which the same language code is described is searched, the system CPU section 50 causes the pointer (VTS
M_LU_SRP) 111B corresponding video title set menu language unit (VTSM_LU) 111
The video title set menu PGC information search pointer (VTSM_PGCI_SRP) 111E in C is searched for the menu ID described for each program chain category (VTSM_PGC_CAT) of each video title set menu (step S66),
By this search, it is determined whether or not there is a sub-picture menu, audio menu, angle menu, or chapter (program) menu, and whether or not a title menu is present (step S67).

When those menus are present, the system CPU section 50 causes the VTSM program chain information described in one of the video title set menu PGC information search pointers (VTSM_PGCI_SRP) 111E in which the menu ID is described. (V
The start address of the TSM_PGCI) 111F corresponds to the VT corresponding to the parameter (VTSM_PGCI_SA).
SM program chain information (VTSM_PGCI) 1
The contents of 11F are read, and the start address (C_FVOBU_SA) of the start video object unit (VOBU) 85 described in this VTSM program chain information (VTSM_PGCI) 111F is used as the start address of the corresponding menu in the memory table 56.
It is stored in A (step S68).

By this, each video title set 72
The start addresses of the sub-picture menu, audio menu, angle menu, and chapter (program) menu for each are stored in the memory table 56A.

As a result, the memory table 56A stores the start address corresponding to each menu corresponding to the language set in the reproducing apparatus, as shown in FIG.

Therefore, when the menu key 5k of the remote control 5 is pressed, the system CPU section 50
Determines whether to reproduce the main menu, and determines whether the main menu exists. If it is determined that the main menu exists as a result of this determination, the system C
The PU unit 50 uses the start address (C_FVO) of the first video object unit (VOBU) 85 stored in association with the main menu of the memory table 56A.
BU_SA) is read, and the data of the main menu corresponding to this address is read from the area corresponding to the video object set (VMGM_VOBS) 76 for the video manager menu (VMGM) 75 of the optical disc 10 and reproduced. The reproduced data is input to the data RAM unit 56 via the system processor unit 54. The data cell 84 is supplied to the video decoder section 58, the audio decoder section 60, and the sub-picture decoder section 62 based on the reproduction time information and decoded, and the D / A
7 and the signal is converted by the reproduction processing unit 64 and displayed on the monitor unit 6.
As shown in FIG. 6, the image of the main menu is reproduced and the sound is reproduced from the speaker unit 8.

Also, when the title key 51 of the remote control 5 is pressed, or when the "1" key corresponding to the title is pressed while the main menu is being reproduced, or when normal reproduction is started. At the same time, the system CPU unit 50 determines whether to reproduce the title menu, and determines whether the title menu exists. As a result of this determination, when it is determined that the title menu exists, the start address (C_F) of the start video object unit (VOBU) 85 stored corresponding to the title menu in the memory table 56A.
VOBU_SA) is read, and the data of the title menu corresponding to this address is read from the area corresponding to the video object set (VMGM_VOBS) 76 for the video manager menu (VMGM) 75 of the optical disc 10 and reproduced. The reproduced data is transferred to the data RAM section 56 via the system processor section 54.
Is input to The data cell 84 includes a video decoder section 58 and an audio decoder section 60 based on the reproduction time information.
And is given to the sub-picture decoder unit 62 and decoded,
The signal is converted by the D / A and reproduction processing unit 64 and the monitor unit 6
The image of the title menu as shown in FIG. 77 (a) is reproduced, and the sound is reproduced from the speaker unit 8.

When the "2" key corresponding to a chapter is pressed while the main menu is being reproduced,
Alternatively, after the title is selected by the normal reproduction, the system CPU unit 50 determines whether to reproduce the chapter menu corresponding to the currently selected title, and determines whether or not the chapter menu exists. As a result of this judgment, if it is judged that the chapter menu exists,
The first video object unit (VOB) stored corresponding to the chapter menu of the memory table 56A.
U) 85 start address (C_FVOBU_SA)
Data of the chapter menu corresponding to this address and the video object set (VT) for the video title set menu (VTSM) of the optical disc 10 is read.
(SM_VOBS) 95 is read from the area corresponding to and reproduced. The reproduced data is input to the data RAM unit 56 via the system processor unit 54. This data cell 84 is given to the video decoder section 58, the audio decoder section 60 and the sub-picture decoder section 62 on the basis of the reproduction time information to be decoded, and the D / A and reproduction processing section 64 converts the signal to obtain the monitor section 6. The image of the chapter menu as shown in (b) of FIG. 77 is reproduced, and the sound is reproduced from the speaker unit 8.

[0206] Also, when the "3" key corresponding to the audio is pressed in the state where the main menu is being reproduced, or after the title is selected by the normal reproduction,
The system CPU unit 50 determines whether to reproduce the audio menu corresponding to the currently selected title, and determines whether the audio menu exists. As a result of this determination, when it is determined that the audio menu exists, the start address (C_FVOB) of the first video object unit (VOBU) 85 stored corresponding to the audio menu in the memory table 56A.
U_SA), the audio menu data corresponding to this address is read from the area corresponding to the video object set (VTSM_VOBS) 95 for the video title set menu (VTSM) of the optical disc 10 and reproduced. The reproduced data is input to the data RAM unit 56 via the system processor unit 54. The data cell 84 is supplied to the video decoder section 58, the audio decoder section 60, and the sub-picture decoder section 62 based on the reproduction time information and decoded, and the D / A
7 and the signal is converted by the reproduction processing unit 64 and displayed on the monitor unit 6.
The image of the audio menu as shown in (c) of 7 is reproduced and the sound is reproduced from the speaker unit 8.

Further, when the "4" key corresponding to the sub-picture is pressed while the main menu is being reproduced, or after the title is selected by the normal reproduction, the system CPU section 50 is currently selected. The reproduction of the sub-picture menu corresponding to the title is judged, and it is judged whether or not the sub-picture menu exists. As a result of this determination, when it is determined that the sub-picture menu exists, the start address (C_FVOBU_SA) of the head video object unit (VOBU) 85 stored corresponding to the sub-picture menu in the memory table 56A is read, The data of the sub-picture menu corresponding to this address is the video title set menu (VTSM) of the optical disc 10.
Video Object Set (VTSM_VOB)
S) Read from the area corresponding to 95 and reproduce. The reproduced data is input to the data RAM unit 56 via the system processor unit 54. This data cell 84 is given to the video decoder section 58, the audio decoder section 60 and the sub-picture decoder section 62 on the basis of the reproduction time information to be decoded, and the D / A and reproduction processing section 64 converts the signal to obtain the monitor section 6. 77D, the image of the sub-picture menu as shown in FIG. 77D is reproduced and the sound is reproduced from the speaker unit 8.

When the "5" key corresponding to the angle is pressed while the main menu is being played,
Alternatively, after the title is selected by the normal reproduction, the system CPU unit 50 determines whether to reproduce the angle menu corresponding to the currently selected title, and determines whether or not the angle menu exists. As a result of this judgment, if it is judged that the angle menu exists,
The top video object unit (VOB) stored in association with the angle menu of the memory table 56A.
U) 85 start address (C_FVOBU_SA)
And the data of the angle menu corresponding to this address is read as the video object set (VT) for the video title set menu (VTSM) of the optical disc 10.
(SM_VOBS) 95 is read from the area corresponding to and reproduced. The reproduced data is input to the data RAM unit 56 via the system processor unit 54. This data cell 84 is given to the video decoder section 58, the audio decoder section 60 and the sub-picture decoder section 62 on the basis of the reproduction time information to be decoded, and the D / A and reproduction processing section 64 converts the signal to obtain the monitor section 6. The image of the angle menu as shown in FIG. 77 (e) is reproduced, and the sound is reproduced from the speaker unit 8.

Therefore, the system CPU section 50 uses the data RAM 56 to store the above-obtained position data of each menu.
Since it is stored in the internal menu table 56A, it is possible to easily reproduce a required menu by using this table.

The system CPU section 50 uses the information management table (VMG) of the video manager (VMGI) 75.
I_MAT) 78, the number of streams of video, audio and sub-picture for the video manager menu described in I_MAT and attribute information of each is acquired, and based on the attribute information, each video decoder section 58, audio decoder section 60 and sub-picture. Parameters for reproducing the video manager menu are set in the decoder unit 62.

Next, the processing when the above menu is reproduced will be described in more detail with reference to the flowchart shown in FIG.

That is, the start address and PGC number of the first VOBU in the cell as the start address for the menu to be reproduced, that is, the cell number is stored in the system ROM / RAM section 52 (step S).
1).

When the video title set is ready to be read, a read command is given from the system CPU section 50 to the disk drive section 30, and the optical disk 10 is sought by the disk drive section 30 based on the above-mentioned start address. (Step S2). By this read command, the cells related to the designated program chain (PGC) are sequentially read from the optical disc 10 and sent to the data RAM unit 56 via the system CPU unit 50 and the system processing unit 54 (step S3). . As shown in FIG. 8, a pack of the sent cell data is stored in the data RAM unit 56 from the navigation pack 86 which is the head pack of the video object unit (VOBU) 85. Thereafter, the packet data of the video pack 88, the audio pack 91 and the sub-picture pack 90 of the video object unit (VOBU) are respectively decoded by the packet transfer processing section 200 into the video decoder section 58, the audio decoder section 60 and the sub-picture decoder section 62. Transferred to the navigation pack 8
The PCI data and the DSI data as packet data 6 are sent to the data RAM unit 56 (step S4).

At this time, the system CPU section 50 determines the highlight information (contents of the above-mentioned FIGS. 49 to 58) corresponding to each button for display based on the PCI data stored in the data RAM section 56 ( Step S5).

That is, for each button, the rectangular area of the button, the display color and the contrast value of each pixel data before being selected when the button is a selection button, and the display color and the contrast value of each pixel data after being selected. When the display color and the contrast value, the button is the confirm button, the display color and the contrast value for each pixel data before being confirmed, the display color and the contrast value for each pixel data after being confirmed, are determined. It is stored in the data RAM unit 56. As the pixel data, emphasis pixels 1 and 2, pattern pixels, and background pixels are prepared, and a display color and a contrast value for each are prepared.

Accordingly, the system CPU section 50 outputs the X and Y coordinate values indicating the rectangular area corresponding to each button stored in the data RAM section 56 to the highlight area setting / determining section 180 of the highlight processing section 62C. At the same time, the highlight processing unit 62C obtains the highlight color and the contrast value corresponding to the highlight information corresponding to the scan position.
It is output to the highlight color / contrast setting unit 182 (step S6).

As a result, the highlight area setting / determining section 180 obtains the X and Y coordinate values indicating the rectangular area (designated highlight area) in which the selection items by the system CPU section 50 are displayed and the raster scan. X, Y
The specified highlight area is determined based on the coordinate value, that is, the pixel data X and Y coordinate values, and a switching signal indicating the highlight section is supplied to the selector 183 (step S7).

Further, in the highlight color / contrast setting section 182, the highlight color and the contrast value by the system CPU section 50 are set according to the X and Y coordinate values obtained by the raster scan (step S).
8).

Accordingly, the selector 183 selectively sets the default display color and contrast from the default color / contrast setting unit 181 in accordance with the switching signal from the highlight area setting / determination unit 180 to the color palette register 184. Output to or highlight color /
The highlighted color and contrast from the contrast setting unit 182 are output to the color palette register 184 (step S9).

The color palette register 184 outputs a signal corresponding to the color and contrast supplied from the selector 183 (step S10).

As a result, the highlight area setting / determination unit 1
When it is determined by 80 that the area is not the highlight area, the selector 183 receives the default display color and contrast for each pixel data from the default color / contrast setting unit 181, and the color palette register 184.
The color signal from the color palette register 184 is output to the D / A & reproduction processing unit 64.

Also, the highlight area setting / determining section 180
When it is determined that the area is within the highlight area by the selector 183,
The display color and contrast at the time of highlighting for each pixel data from 2 are received and output to the color palette register 184, and the color signal from the color palette register 184 is output to the D / A & reproduction processing unit 64.

As a result, the color and contrast of the decoded sub-picture data for each pixel are changed according to the highlight information, and the image synthesizing unit 64A (FIG. 1) in the D / A & reproduction processing unit 64 shown in FIG. 1)).

Therefore, the main video data decoded by the video decoding unit 58 is supplied to the image synthesizing unit 64A in the D / A & reproduction processing unit 64, and the sub video decoding unit 62 is supplied.
It is decoded by the decoder 62B in the inside and is supplied to the image combining unit 64A in the D / A & reproduction processing unit 64 via the highlight processing unit 62C. As a result, the main image data and the sub-image data are combined by the image combining section 64A, and the combined image is displayed on the monitor section 6.

For example, in the main image as the background image shown in (a) of FIG. 79, the sub-image consisting of buttons as selection items shown in (b) of FIG. 79 is displayed in the highlight information shown in (c) of FIG. By combining the images that have been highlighted with
The combined image shown in FIG. 79 (d) is obtained. At this time, the background of the selection item is displayed in blue and the characters of the selection item are displayed in black.

The audio data decoded by the audio decoding unit 60 is processed by the D / A & reproduction processing unit 64.
Is supplied to the speaker unit 8, the sound corresponding to the menu or the main image is reproduced.

In the display state of this menu, the user operates the key operation / display unit 4 or the remote controller 5
When the selection item highlighted by is selected, the system CPU unit 50 sets the corresponding highlight color and contrast value after selection to the highlight processing unit 62C.
Output to the highlight color / contrast setting unit 182. As a result, the highlight color and contrast of the selected item are changed. At this time, the background of the selection item is displayed in red and the characters of the selection item are displayed in white.

Another example of the menu image will be described with reference to FIGS. 80 (a) to (e).

That is, when the main video data as shown in FIG. 80A and the sub video data as shown in FIG. 80B are supplied, the menu image before selection is as shown in FIG.
As shown in (c), the characters of the selection items for "1" and "2" are displayed in black and the background is displayed in gray.

After that, when the selection item of "1" is selected by the key operation / display unit 4 or the remote controller 5, the system CPU unit 50 displays a rectangle for the selection item of "1" read from the PCI data. The X and Y coordinates indicating the area and the change contents (highlight information) of the color or contrast of each pixel are set in the highlight processing unit 62C.

As a result, the highlight processing unit 62C changes the highlight color and contrast value corresponding to the selection item of "1" for the sub-picture data decoded by the decoder 62B of the sub-picture decoding unit 62, and D / A & is supplied to the image composition unit 64A in the reproduction processing unit 64. As a result, the image combining unit 64A combines the main image data and the sub image data, and the combined image, that is, (d) in FIG.
As shown in, the menu image in which the display content of the selection item “1” of the selection item is changed is displayed on the monitor unit 6.
For example, the character portion of the selection item “1” is displayed in white and the background is displayed in red.

[0232] When the selection item "2" is selected by the key operation / display unit 4 or the remote controller 5,
The system CPU unit 50 shows X, Y indicating a rectangular area for the selection item of "1" read from the PCI data.
The contents of change in coordinates and the color or contrast of each pixel (highlight information) are set in the highlight processing unit 62C.

As a result, the highlight processing unit 62C changes the highlight color and contrast value corresponding to the selection item of "1" in the sub-picture data decoded by the decoder 62B of the sub-picture decoding unit 62, and D / A & is supplied to the image composition unit 64A in the reproduction processing unit 64. As a result, the main image data and the sub image data are combined by the image combining unit 64A, and the combined image, that is, (e) in FIG. 80.
As shown in, the menu image in which the display content of the selection item “2” of the selection item is changed is displayed on the monitor unit 6.
For example, the character portion of the selection item “2” is displayed in white and the background is displayed in red.

This makes it possible to easily change various menu screens without reading new video data.

Further, the selection item position information is designated in correspondence with the display coordinate system of the main image, so that the positional relationship between the main image and the sub image can be easily determined.

FIGS. 81 (a) and 81 (b) show an example of the relationship between the sub-picture data of the selected item and the highlight information as the control data.

In the figure, the pixels represented by ◯ are created by using the pattern pixels, and the pixels represented by □ are created by using the emphasized pixel 1.

FIG. 81 (a) shows a case in which pattern pixels of sub-picture data and emphasis pixels as shadows of the pattern pixels are used. In this case, after the control data is selected, the color of the emphasized pixel 1 is set to a new color in the display color information, and the other pixel colors and contrasts are set to the current color, thereby selecting the selected color. With regard to the item, it is possible to change in real time to a shadow of a color different from other selection items.

FIG. 81 (b) shows a case where the sub-picture data is composed of only pattern pixels. In this case, after the highlight information is selected, the color of the pattern pixel is set to a new color in the display color information, and the other pixels and the contrast are set to the current color so that the selected item is selected. It is possible for the user to change to a different color in real time from other selection items.

In addition to this, by setting the contrast of the background pixels in the selection item area to be 100% of the sub-picture data when selected and 0% when not selected, the entire selection area is selected. By using the configuration of the sub-picture data and the content of the highlight information, such as control for changing the color, various formats are possible in real time.

Further, for example, when the identified cell type is the menu, the next cell reproduction is not automatically performed, and a standby state is set in the final frame display state at the time when the cell reproduction is finished.

Therefore, when the menu cell is reproduced, the final display state of the cell is the still image state. In each cell, NV pack 88 is a fixed unit of video data.
Since, is inserted, the highlight information for the above-mentioned menu is stored in the data RAM section 56.

When the cell reproduction is completed, the system CPU 50 waits for a user event (key input, etc.), and obtains information (highlight information) related to the menu from the PCI data stored in the data RAM section 56. The processing of the selection item corresponding to the user selection of the menu is executed while referring to it.

Next, in a state where the title or the like is selected from the above menu, the optical disc 1 having the logical format shown in FIGS. 6 to 66 with reference to FIG.
The operation of reproducing movie data from 0 will be described.

With the desired title selected,
When the reproduction key 4c of the key operation / display unit 4 or the reproduction key 5d of the remote controller 5 is pressed, the system processor 50 causes the system CPU unit 50 to display the title search pointer table information (TT_SRPTI) 9
2 to title search pointer table (TT_SRP
T) Acquire the final address of 79 and key operation /
A video title set number (VTSN), a program chain number (PGCN) and a video title set corresponding to the input number from the title search pointer (TT_SRP) 93 according to the input number from the display unit 4 or the selection of the title number by the remote controller 5. Start address (VTS_SA) is acquired. If there is only one title set, one title search pointer (TT_SRP) 93 is searched regardless of the presence / absence of the input number from the key operation / display unit 4 and the selection of the title number by the remote controller 5, and the title is searched. The start address (VTS_SA) of the set is acquired. Start address of this title set (VTS
_SA), the system CPU unit 50 acquires the target title set.

Next, from the start address (VTS_SA) of the video title set 72 shown in FIG. 13, the video title set information (VTSI) 94 of that title set is obtained as shown in FIG. From the video title set information management table (VTSI_MAT) 98 of this video title set information (VTSI) 94 to FIG.
Video title set information management table (VT
SI_MAT) 98 end address (VTI_MAT_
EA) is acquired and the number of streams of audio and sub-picture data (VTS_AST_Ns, VTS_SP)
ST_Ns) and attribute information (VTS_V_ATR, VTS_A_AT) of video, audio and sub-picture data
R, VTS_SPST_ATR), each unit of the reproducing apparatus shown in FIG. 1 is set according to its attribute.

Further, when the menu (VTSM) for the video title set (VTS) has a simple structure, the menu for the video title set is selected from the video title set information management table (VTSI_MAT) 98 shown in FIG. Video object set (VTSM_
VOBS) 95 start address (VTSM_VOB)
S_SA) is acquired and its video object set (VTSM_VOBS) 95 displays a menu of video title sets. Refer to this menu and simply select the title (VTS) in the title set (VTS) without selecting the program chain (PGC).
Video object set (VTT_VOB) for
S) 96 is reproduced, the video object set 96 is reproduced from the start address (VTSTT_VOBS_SA) shown in FIG.

When the program chain (PGC) is designated by the key operation / display unit 4 or the remote controller 5, the target program chain is searched by the following procedure. This program chain search is not limited to the program chain for the title in the video title set, and the same procedure is used for searching the program chain for the relatively complicated menu in which the menu is composed of the program chain. Is adopted. Video title set information (V
TSI) 94 management table (VTSI_MAT) 98
The video title set (VT
S) program chain information table (VTS_P
Figure 2 after the start address of GCIT) 100 was acquired
The information (VTS_PGCIT_I) 102 of the VTS program chain information table shown in FIG. 4 is read. From this information (VTS_PGCIT_I) 102 to the number of program chains (VTS_PGC_I) shown in FIG.
Ns) and the end address of the table 100 (VTS_P
GCIT_EA) is acquired.

When the number of the program chain is designated by the key operation / display unit 4 or the remote control 5, the VTS_PGCI corresponding to the number is shown in FIG.
T search pointer (VTS_PGCIT_SRP) 10
3 to the category of the program chain shown in FIG. 26 and its search pointer (VTS_PGCIT_SR
The start address of the VTS_PGC information 104 corresponding to P) 103 is acquired. This start address (V
The program chain general information (PGC_GI) shown in FIG. 27 is read by TS_PGCI_SA.
Based on this general information (PGC_GI), the category of the program chain (PGC) and the playback time (PGC_C)
AT, PGC_PB_TIME) and the like are acquired, and the cell reproduction information table (C_PBIT) and cell position information table (C_P) described in the general information (PGC_GI) are acquired.
OSIT 108 start address (C_PBIT_
SA, C_POSIT_SA) is obtained. From the start address (C_PBIT_SA), a video object identifier (C_VOB_IDN) and a cell identification number (C_IDN) as shown in FIG. 36 are obtained as cell position information (C_POSI) shown in FIG.

The start address (C_POSIT
_SA) to cell reproduction information (C_PBI) shown in FIG.
3 described in the reproduction information (C_PBI)
The start address (C_FVOBU_SA) of the first VOBU 85 and the start address (C_LVOBU_SA) of the last VOBU in the cell shown in FIG. 4 are obtained and the target cell is searched. The playback order of cells is
The PGC program map (PGC_P shown in FIG.
The reproduction cell 84 is determined one after another with reference to the map of the program shown in FIG. The data cells 84 of the program chain thus determined are successively read from the video object 144 and input to the data RAM section 56 via the system processor section 54. The data cell 84 is supplied to the video decoder section 58, the audio decoder section 60, and the sub-picture decoder section 62 based on the reproduction time information and decoded, and the D / A
The reproduction processing unit 64 converts the signal to reproduce the image on the monitor unit 6 and reproduces the sound from the speaker unit 8.

Further, normal reproduction of video data using the navigation pack 86 will be described in more detail with reference to a flowchart.

In the normal reproduction of the video data, when the normal reproduction is started as shown in FIGS. 82 and 83, the video manager information (VMGI) 75 is set in the system CPU section 50 as already described after the start. And is stored in the system ROM / RAM section 52 (step S12). Similarly, based on the video manager information (VMGI) 75, the video title set information (VTS) of the video title set (VTS) 72 is recorded.
I) 94 is loaded and the video title set menu displays the video object set (VTSM_
The VOBS) 95 is used for display on the monitor unit 6 as described above. Based on this display, the user determines the title set 72 to be reproduced, reproduction conditions, etc. as shown in step S13. When the determined title set 72 is selected using the key operation / display unit 4, step S1
20 in the selected title set 72 as shown in FIG.
Program chain information table (VTS_PG
The data of the cell reproduction information table (C_PBIT) 107 shown in FIG. 27, FIG. 33 and FIG. 34 is read by the system CPU section 50 and stored in the system ROM / RAM section 52.

The system CPU section 50 causes the step S15.
As shown in, the program chain number (VTS_PGC_N) for starting reproduction according to the reproduction condition input from the key operation / display unit 4 or the remote controller 5.
s), angle numbers (ANGNs), audio stream numbers, and sub-picture stream numbers are determined using the menus described above. For example, the 11th match of Boxing World Champion was selected as the title of the program chain, and it was decided to display Japanese subtitles as a sub-picture based on the English narration.
In addition, the user makes a selection such as deciding an image in which the battle between the two can be viewed well as the angle.
The determined sub-picture number and audio stream number are set in the register 54B of the system processor unit 54 as shown in step S16. Similarly, the playback start time is the system time clock (STC) 54A of the system processor unit 54, the video decoder unit 58, the audio decoder unit 60 and the sub-picture decoder unit 62, and 5
It is set to 8A, 60A and 62A. Also, the start address and PGC number of the first VOBU in the cell as the start address, that is, the cell number is the RO for the system.
It is stored in the M / RAM unit 52.

As shown in step S17, a read command is given from the system CPU section 50 to the disk drive section 30 when the video title set is ready to be read, and the optical disk 10 is read by the disk drive section 30 based on the above-mentioned start address. Seek by.
By this read command, the cells related to the designated program chain (PGC) are sequentially read from the optical disc 10 and sent to the data RAM unit 56 via the system CPU unit 50 and the system processing unit 54. As shown in FIG. 8, the sent cell data is stored in the data RAM section 5 from the navigation pack 86 which is the first pack of the video object unit (VOBU) 85.
6 is stored. After that, the video pack 88 and audio pack 9 of the video object unit (VOBU)
1 and the sub-picture pack 90 are respectively the video decoder section 58,
It is distributed to the audio decoder unit 60 and the sub-picture decoder unit 62, decoded by each decoder and sent to the D / A and data reproducing unit 64. As a result, a video signal is sent to the monitor unit 6, an audio signal is sent to the speaker unit 8,
The display of the image accompanied by the sub-image is started and the reproduction of the sound is started.

During the reproduction of such video and audio, if there is an interrupt process from the key operation / display unit 4 or the remote controller 5, the obtained key data is stored in the system RAM / ROM unit 52. Is stored. If there is no key data, it is checked whether or not there is a reproduction end interrupt from the drive unit, as shown in step S19. If there is no reproduction end interrupt, the transfer of the navigation pack 86 is awaited as shown in step S20. If the transfer of the navigation pack 86 is completed, the system RAM / ROM unit 52 sets the logical sector number (NV_PCK_LSN) in the navigation pack 86 as the current logical block number (NOWLBN) as shown in step S21.
Stored in.

When the transfer of the NV pack 86 is completed, the last NV pack 86 in the cell is checked. That is, as shown in step S22, it is checked whether or not it is the final navigation pack 86 in the cell 84.
This check is performed by comparing the start address (C_LVOBU_SA) of C_LVOBU of the cell playback information table (C_PBI) 107 shown in FIG. 34 with the address (V_PCK_LBN) of the navigation pack 86. If the NV pack 86 is not the last in the cell, the process returns to step 19. N
If the V-pack 86 is the last in the cell 84, it is checked whether or not the angle is changed as shown in step S23. Change the angle from the key operation / display unit 4 or the remote controller 5 to the system CP.
It is determined based on whether or not there is an angle change input in the U section 50. If the angle is not changed, it is checked whether the cell 84 is the last cell of the program chain (PGC) to which the cell 84 belongs, as shown in step S24. This check is judged depending on whether the cell 84 shown in FIGS. 27 and 33 is the last cell of the cell reproduction information table (C_PBIT) 107. That is, it is checked by the number of cells constituting the program chain and the identification number of the reproduced cell. If the cell does not correspond to the last cell of the program chain (PGC), the process returns to step S19 again.

Cell 84 is a program chain (PGC)
If the cell is the last cell of, the next program chain (PGC) is designated as the end of the program chain. Except in special cases, the program chains are played back in numerical order, so step S25
As shown in (1), the program chain number to be reproduced next is set by adding 1 to the number of the program chain which has been reproduced. In step S26, it is checked whether or not there is a program chain with the set program chain number. If there is no program chain to be reproduced next, the flow advances to a reproduction end procedure shown in FIG. 84, which will be described later. If there is a set program chain, the address of the cell of the reset program chain as shown in step S27, that is, the cell playback information (C_PB shown in FIG. 34.
I) The start address (C_FVOBU_SA) of C_FVOBU85 in 107 is acquired as the current logical block number. As shown in step S28, this start address (C_FVOBU_SA) has already been reproduced, and the last address (E
NDLBN) plus 1 is checked for equality. If they are equal to each other, it means that cells having consecutive addresses are reproduced, and the process returns to step S18. If the addresses are not equal, the cell addresses are not consecutive as shown in step S29.
Issues a read end address command designating the end address of the current video object unit, and causes the disk drive unit 30 to temporarily stop the read operation at the specified address. After that, as shown in step S30, the read command is again given from the system CPU section 50 to the disk drive section 30 and the start address is given to the disk drive section 30, and the procedure is returned to step S19 again, and the seek of the navigation pack 86 is started. To be done.

If the reproduction is completed in step S19, or if there is no program chain to be reproduced next in step S26, step 3 in FIG.
As shown in 1, general information of PCI 113 (PCI-G
I) End PTM (VOBU_EPTM)
Is referred to, and this end PTM (VOBU_EPTM)
Is displayed on the system time clock (STC), the display of the screen of the monitor 6 is stopped as shown in step 32, and the system CPU gives a data transfer stop command to the disk drive unit 30 as shown in step S33. The data transfer is stopped and the reproducing operation is ended.

When there is an angle change input from the key operation / display unit 4 or the remote controller 5 in step S23, it is checked whether there is angle data as shown in step S40 of FIG. The presence or absence of this angle is determined by the PCI data 1 of the navigation pack 86.
It is described as angle information (NSML-AGLI, SML_AGLI) in both 13 and DSI data 115. Here, any information is checked by the system CPU unit 50 in response to an input from the key operation / display unit 4 or the remote controller 5. If there is no angle to be changed in step 40, the fact that there is no angle data is displayed on the key operation / display unit 4 or the monitor unit 6 as shown in step S41. After the display without the angle data, the process proceeds to step S24. If there is angle data, the angle number to be changed is specified from the key operation / display unit 4 or the remote controller 5 as shown in step S42. Here, as already mentioned, PC
Angle information of I data and DSI data (NSML_
Which of the AGLI and SML_AGLI) is used to change the angle is designated. However, when there is only one angle information, the selection is limited to one. When the angle number is designated, the target address (NSML_AGL_C_) of the angle cell corresponding to the designated angle number as shown in FIGS.
DSTA, SML_ANL_C_DSTA) are obtained in step S43. The cell is searched by this address, and the logical block number (N
OWLBN). Here, especially when changing the angle using PCI, the system CPU unit 50 performs a mute process on the reproduction of the video and audio data and a pause process on the reproduction of the sub-picture in accordance with the angle changing operation. Give. With this processing, the system time clock (STC) of each part of the playback device is stopped, and the video, audio and sub-picture decoder part 5 has already been
The buffers in 8, 60 and 62 are cleared so that the changed angle data can be accepted (step S44). At the same time, as shown in step 45, the system CPU section 50 issues a read end address command to cause the disk drive section 30 to temporarily stop the read operation. After that, as shown in step S46, a read command is given from the system CPU section 50 to the disk drive section 30, and the cell is searched and selected by the set logical block number to seek, that is, the start address of the selected angle cell. The transfer of angle cell data is started.

When the transfer is started, the transfer of the navigation pack of the first cell which is the change angle destination is again waited. As shown in step S48, it is checked whether or not the transfer of the navigation pack due to the data transfer is completed. If the transfer of the navigation pack is not completed, the process returns to step 47 again. When the navigation pack 86 is transferred, each system time clock (STC) is set by referring to the SCR (NV_PCK_SCR) of the NV pack 86 described in the DSI general information (DSIG) of the navigation pack 86. Then, the muted state of the video and audio and the paused state of the sub-picture set in step S44 are released, and the operation of the system time clock (STC) is started. After that, the step S shown in FIG.
21 is executed.

Next, referring to FIGS. 86 to 91, the video data in the logical format shown in FIGS. 6 to 66, the recording method on the optical disc 10 for reproducing the video data, and the recording method are applied. The recording system will be described.

FIG. 86 shows an encoder system for generating a video file 88 of a title set 84 in which video data is encoded. In the system shown in FIG. 86, as sources of main video data, audio data, and sub video data, for example, a video tape recorder (VTR) 201, an audio tape recorder (ATR) 202, and a sub video playback device (Subpicture source).
e) 203 is adopted. These generate main video data, audio data, and sub-video data under the control of the system controller (Sys con) 205, and these generate video encoder (VENC) 206, audio encoder (AENC) 207, and sub-video encoder (SP), respectively.
ENC) 208, and these encoders 20 are also controlled by the system controller (Syscon) 205.
6, 207, and 208, A / D-converted, encoded by each compression method, and encoded main video data, audio data, and sub-video data (Comp Video,
Memory 210, 21 as Comp Audio, Comp Sub-pict
1 and 212.

[0263] The main video data, audio data, and sub video data (Comp Video, Comp Audio, Comp Sub-pic
t) is output to the file formatter (FFMT) 214 by the system controller (Sys con) 205, converted into the file structure of the video data of this system as described above, and the setting condition of each data,
Management information such as attributes and highlight information is stored in the memory 216 as a file by the system controller (Sys con) 205.

The standard flow of the encoding process in the system controller (Sys con) 205 for creating a file from video data will be described below.

According to the flow shown in FIG. 87, main video data and audio data are encoded and encoded main video and audio data (Comp Video, Comp Aud
io) data is created. That is, when the encoding process is started, parameters required for encoding the main video data and audio data are set as shown in step 70 of FIG. Some of the set parameters are set in the system controller (Sys con) 205.
File formatter (FFM
T) 214. As shown in step S271, the main video data is pre-encoded using the parameters, and the optimal distribution of the code amount is calculated. Step S2
As shown in 72, the main video is encoded based on the code amount distribution obtained by the pre-encoding. At this time, audio data encoding is also executed at the same time. If necessary as shown in step S273, the main video data is partially re-encoded to replace the re-encoded main video data. Main video data and audio data are encoded by this series of steps. Also, steps S274 and S
As shown by 275, the sub-picture data is encoded and encoded sub-picture data (Comp Sub-pict) is created.
That is, the parameters necessary for encoding the sub-picture data are similarly set. A part of the parameters set as shown in step S274 is stored in the system controller (Sys con) 205 and used by the file formatter (FFMT) 214. The sub-picture data is encoded based on this parameter. By this processing, the sub-picture data is encoded.

According to the flow shown in FIG. 88, the main video data, the audio data, and the sub video data (Com Video, Comp Audio, Comp Sub-pict) encoded are combined to produce the video as described with reference to FIG. Converted to data title set structure. That is, step S27
As shown in 6, a cell is set as the minimum unit of video data, and cell reproduction information (C_PBI) regarding the cell is created. Next, as shown in step S277, the configuration of cells constituting the program chain, main video, sub-video, audio attributes, etc. are set (some of these attribute information are obtained by the information obtained at each data encoding. 12), the video title set information management table information (VTSI_MAT) 98 and the video title set time search map table (VTS_TMAPT) 1 including the information about the program chain as shown in FIG.
01 is created. At this time, a video title set part of title search pointer table (VTS_PTT_SRPT) is also created if necessary. Encoded main video data, audio data, and sub video data (Com Video, Comp Audio, Comp Sub-pict) are subdivided into fixed packs, and each VOBU unit can be played back in order of the time code of each data. Each data cell is arranged while arranging the NV pack at the head thereof to form a video object (VOB) composed of a plurality of cells as shown in FIG. 6, and the set of the video objects is formatted into a title set structure. To be done.

In the flow shown in FIG. 88, the program chain information uses the database of the system controller (Sys con) 205 in the process of step S277, or re-enters data as necessary. Is executed and is described as program chain information (PGI).

FIG. 89 shows a disc formatter system for recording the title set formatted as described above on the optical disc. As shown in FIG. 89, in the disc formatter system, these file data are stored in the volume formatter (VF) from the memories 220 and 222 in which the created title set is stored.
MT) 226. In the volume formatter (VFMT) 226, the management information is extracted from the title sets 84 and 86 to create the video manager 71, and the logical data to be recorded on the optical disc 10 is created in the arrangement order shown in FIG. Data for error correction is added to the logical data created by the volume formatter (VFMT) 226 in the disk formatter (DF).
MT) 228 and reconverted into physical data to be recorded on the disc. Modulator 230
At, the physical data created by the disk formatter (DFMT) 228 is converted into the recording data to be actually recorded on the disk, and the modulated recording data is recorded on the disk 10 by the recorder (Recoder) 232.

A standard flow for creating the above-mentioned disc will be described with reference to FIGS. 90 and 91. Figure 9
At 0, a flow in which logical data to be recorded on the disk 10 is created is shown. That is, step S28
As indicated by 0, parameter data such as the number of video data files, the order of arrangement, the size of each video data file, etc. is set at the beginning. Next, from the parameters set as shown in step S281 and the video title set information 281 of each video title set 72, the video manager 7
1 is created. Then, as shown in step S282, the video manager 71 and the video title set 72 are displayed.
In this order, the data is arranged along the corresponding logical block number, and the logical data to be recorded on the disk 10 is created.

After that, a flow for creating physical data to be recorded on the disc as shown in FIG. 91 is executed. That is, as shown in step S283, the logical data is divided into a certain number of bytes, and error correction data is generated. Next, as shown in step S284, the logical data divided into a fixed number of bytes and the generated error correction data are combined to create a physical sector. afterwards,
As shown in step S285, physical data is created by combining the physical sectors. In this way, the physical data generated by the flow shown in FIG. 91 is subjected to a modulation process based on a certain rule to create recorded data. Then, this recording data is recorded on the disc 10.

The above-mentioned data structure can be applied not only to the case where it is recorded on a recording medium such as an optical disk and distributed to the user for reproduction, but also to a communication system as shown in FIG. That is, according to the procedure shown in FIG. 86 to FIG.
The optical disc 10 in which the video manager 71, the video title set 72, etc. are stored in the reproducing apparatus 300, the encoded data is digitally taken out from the system CPU section 50 of the reproducing apparatus, and the modulator / transmitter is used. It may be sent to the user or the cable subscriber side by radio wave or cable by 310. Further, data encoded by the provider side such as a broadcasting station is created by the encoding system 320 shown in FIGS. 86 and 89, and this encoded data is similarly generated by the modulator / transmitter 3.
It may be sent to the user or the cable subscriber side by radio wave or cable by 10. In such a communication system, the information of the video manager 71 is first modulated by the modulator / transmitter 310 or directly distributed to the user for free, and when the user becomes interested in the title, the user or subscriber can In response to the request from the user, the title set 72 is transmitted to the user side by the modulator / transmitter 310 via radio waves or a cable. In the transfer of the title, first, the video title set information 94 is sent under the control of the video manager 71, and thereafter, the video object 95 for the title in the video title set reproduced by the title set information 94 is transferred. At this time, if necessary, the video object 95 for the video title set menu is also sent. The transmitted data is received by the receiver / demodulator 400 on the user side, and is processed as encoded data by the system CPU unit 50 of the reproducing apparatus on the user or subscriber side shown in FIG. Is played.

In transferring the video title set 72, the video object sets 95 and 96 are transferred in units of the video object unit 85 shown in FIG. In this video object unit 85, an NV pack 86 in which video reproduction and search information is stored is arranged at the head thereof. Moreover, this NV pack 86
Since the address of the video object unit to be played back and forth based on the video object unit 85 to which the NV pack 86 belongs is written in the field, the video object unit 85 is transferred for some reason during the transfer of the video object unit 85. Even if the video data is missing, the video data can be surely reproduced on the user side by requesting the retransmission of the missing video object unit 85. Further, even if the transfer is not performed in the reproduction order of the video object unit, the system ROM / RAM unit 52 on the user side holds the reproduction information of the correct program chain, and the address data of the NV pack 86 is referred to for the reproduction order. Can be instructed by the system CPU unit 50.

In the above description, the video object unit has been described as a data string including video, audio and sub-picture, but it is sufficient if any of video, audio and sub-picture is included, and only audio pack or sub-picture. You may comprise only a pack.

[0274]

As described above, according to the present invention, by using the video data including the main video data and the sub video data, the load on the reproducing apparatus is reduced and the real time according to the user's selection result. Can react to.

Further, according to the present invention, a menu is created by using the main video data as the background image of the menu and the sub video data consisting of the selection item or the finalization item of the menu, and the selection item or the finalization item of the sub video data is created. Various menus can be easily created by changing the highlight information for, that is, changing the color and contrast of characters.

[Brief description of drawings]

FIG. 1 is a block diagram showing an outline of an optical disc device according to an embodiment of the present invention.

2 is a block diagram showing details of a mechanical portion of the disk drive device shown in FIG. 1;

FIG. 3 is a perspective view schematically showing the structure of an optical disc loaded in the disc drive device shown in FIG.

FIG. 4 is a diagram showing a schematic configuration of a key operation and display unit shown in FIG. 1.

5 is a diagram showing a schematic configuration of the remote control shown in FIG.

6 shows a structure of a logical format of the optical disc shown in FIG.

FIG. 7 shows a structure of the video manager shown in FIG.

8 is an example showing a structure of a video object set (VOBS) shown in FIG.

9 is an explanatory diagram showing the structure of the video object unit shown in FIG. 8. FIG.

10 shows parameters and contents of a video manager information management table (VMGI_MAT) in the video manager (VMGI) shown in FIG.

11 is a title search pointer table (T in the video manager (VMGI) shown in FIG. 7;
T_SRPT) structure is shown.

12 shows parameters and contents of information (TT_SRPTI) of the title search pointer table (TT_SRPT) of the title search pointer table (TT_SRPT) shown in FIG. 11.

13 shows parameters and contents of a title search pointer (TT_SRP) corresponding to an input number of the title search pointer table (TT_SRPT) shown in FIG.

14 is a video manager menu PGCI unit table (VMGM_PG) shown in FIG.
The structure of CI_UT) is shown.

15 is a video manager menu PGCI unit table information (VMGM) shown in FIG.
_PGCI_UTI) parameter and content.

16 is a video manager menu PGCI unit search pointer (VMG) shown in FIG.
M_LU_SRP) parameter and contents.

FIG. 17 shows a structure of the video manager menu language unit (VMGM_LU) shown in FIG.

FIG. 18 shows parameters and contents of the video manager menu language unit information (VMGM_LUI) shown in FIG. 17.

FIG. 19 is a video manager menu PG.
C information search point (VMGM_PGCI_SRP)
The parameters and contents of are shown below.

20 shows a structure of the video title set shown in FIG.

21 shows parameters and contents of the management table (VTSI_MAT) of the video title set information (VTSI) shown in FIG. 20.

22 is an attribute (VTS_) of the audio stream of the video title set (VTS) shown in FIG.
AST_ATR).

23 is a sub-picture stream attribute (VTS_SPS) of the video title set (VTS) shown in FIG.
T_ATR).

24 shows a structure of a table (VTS_PGCIT) of video title set program chain information of the video title set (VTS) shown in FIG.

FIG. 25 is a table (VTS_PG) of the video title set program chain information shown in FIG.
The parameters and contents of information (VTS_PGCIT_I) of CIT) are shown.

FIG. 26 is a table (VTS_PG) of the video title set program chain information shown in FIG. 24.
The parameters and contents of the search pointer (VTS_PGCIT_SRP) corresponding to the CIT) program chain are shown.

27 is a table (VTS_PG) of the video title set program chain information shown in FIG.
CIT) program chain information (VTS_PG) for the video title set corresponding to the program chain
The structure of CI) is shown.

FIG. 28 shows parameters and contents of general information (PGC_GI) of the program chain of the program chain information (VTS_PGCI) shown in FIG. 27.

29 shows a structure of a category (PGC_CAT) of a program chain (PGC) of general information (PGC_GI) of the program chain shown in FIG. 28.

30 is a diagram showing the contents (PGC_CN) of the general information (PGC_GI) of the program chain shown in FIG.
The structure of T) is shown.

31 shows a structure of a program chain map (PGC_PGMAP) of the program chain information (VTS_PGCI) shown in FIG.

32 shows the parameters and contents of the entry cell number (ECELLN) for the program described in the program chain map (PGC_PGMAP) shown in FIG. 27.

FIG. 33 shows a structure of a cell playback information table (C_PBIT) of the program chain information (VTS_PGCI) shown in FIG. 27.

34 is a diagram showing cell reproduction information (C
_PBI) shows the parameters and contents.

35 is a diagram showing cell position information (C_PO) of the program chain information (VTS_PGCI) shown in FIG.
The structure of (SI) is shown.

36 is a diagram showing cell position information (C
_POSI) parameter and contents.

37 is a diagram showing the video title set menu PGCI unit table (VTSM_P) shown in FIG.
The structure of GCI_UT) is shown.

38 is a diagram showing the video title set menu PGCI unit table information (VTSM) shown in FIG.
_PGCI_UTI) parameter and content.

39 is a video title set menu PGCI unit search pointer (VTS) shown in FIG.
M_LU_SRP) parameter and contents.

FIG. 40 shows the structure of the video title set menu language unit (VTSM_LU) shown in FIG. 37.

FIG. 41 shows parameters and contents of the video title set menu language unit information (VTSM_LUI) shown in FIG. 37.

FIG. 42 is a diagram showing a video title set menu P.
GC information search point (VTSM_PGCI_SR
The parameters and contents of P) are shown.

43 shows a structure of the navigation pack shown in FIG.

[Fig. 44] Fig. 44 illustrates a structure of the video pack, the audio pack, or the sub-picture pack illustrated in Fig. 8.

45 shows the parameters and contents of the playback control information (PCI) of the navigation pack shown in FIG. 43.

46 shows parameters and contents of general information (PCI_GI) in the reproduction control information (PCI) shown in FIG. 45.

47 shows parameters and contents of angle information (NSML_AGLI) in the reproduction control information (PCI) shown in FIG. 45.

48 is an explanatory diagram when performing angle change using the angle information (NSML_AGLI) in the reproduction control information (PCI) shown in FIG. 47.

[Fig. 49] Fig. 49 is a diagram illustrating a valid period of highlight information for each sub-picture stream in a reproduction period of one sub-picture unit.

[Fig. 50] Fig. 50 is a diagram for describing a video, a sub-picture, highlight information, and a combined image obtained by combining these.

51 shows parameters and contents of highlight information (HLI) in the reproduction control information (PCI) shown in FIG. 45.

52 is a diagram for explaining the contents of highlight information (HLI) shown in FIG. 51. FIG.

53 shows parameters and contents of highlight generation information (HL_GI) in the highlight information (HLI) shown in FIG. 51.

54 is a button color information table (BTN_COL) in the highlight information (HLI) shown in FIG. 51;
The figure which shows the structure of (IT).

FIG. 55 is a diagram illustrating selection color information (S
The figure which shows the description content of L_COLI) in detail.

56 is a diagram showing fixed color information (A) shown in FIG. 54;
The figure which shows the description content of C_COLI) in detail.

57 is a diagram showing the structure of a button information table (BTNI) in the highlight information (HLI) shown in FIG. 51.

FIG. 58 is a diagram illustrating button information (B
The figure which shows the description content of the button position information (BTN_POSI) in (TNI) in detail.

FIG. 59 shows parameters and contents of disc search information (DSI) of the navigation pack shown in FIG. 43.

FIG. 60 shows parameters and contents of DSI general information (DSI_GI) of the disc search information (DSI) shown in FIG. 59.

FIG. 61 shows parameters and contents of angle information (SML_AGLI) of the disc search information (DSI) shown in FIG. 59.

FIG. 62 is a view showing angle information (SML_AGLI) in the disc search information (DSI) shown in FIG. 61;
It is explanatory drawing at the time of implementing an angle change using.

63 is a search information (VOBU_S) of the video object unit (VOBU) shown in FIG. 59;
RI) and its contents are shown.

64 is a diagram showing search information (VOBU_S) of the video object unit (VOBU) shown in FIG. 59;
7 shows a bitmap describing a forward address (FWDA) of RI).

65 is a diagram showing search information (VOBU_S) of the video object unit (VOBU) shown in FIG. 59;
7 shows a bitmap describing a backward address (BWDA) of (RI).

FIG. 66 is a diagram showing the synchronous reproduction information (SYNC) of the video object unit (VOBU) shown in FIG. 59;
The parameters and their contents of I) are shown.

FIG. 67 shows a structure of a sub-picture unit.

FIG. 68 shows parameters and contents of a sub-picture unit header (SPUH) of the sub-picture unit shown in FIG. 67.

69 shows parameters and contents of the display control sequence table (DCSQT) of the sub-picture unit shown in FIG. 67.

FIG. 70 shows parameters and contents of the display control sequence (DCSQ) shown in FIG. 69.

FIG. 71 shows a configuration of a packet transfer processing unit.

FIG. 72 shows a configuration of a highlight processing unit.

FIG. 73 is a diagram showing the total number of titles in an optical disc, the number of chapters (the number of programs) for each title, the number of audio streams for each title and the language of the audio stream, the number of sub-picture streams for each title, and the sub-picture. The flowchart when detecting the language of a stream is shown.

FIG. 74 is a diagram showing the total number of titles in an optical disc, the number of chapters (the number of programs) for each title, the number of audio streams for each title and the language of the audio stream, the number of sub-picture streams for each title, and the sub-picture. The flowchart when detecting the language of a stream is shown.

FIG. 75 is a diagram showing a storage example of a memory table.

FIG. 76 is a diagram showing an example of reproduction of an image of a main menu.

[Fig. 77] Fig. 77 is a diagram illustrating a reproduction example of images of a title menu, chapter menu, audio menu, sub-picture menu, and angle menu.

FIG. 78 is a flowchart showing a processing procedure when a menu is reproduced.

[Fig. 79] Fig. 79 is a diagram for describing a video, a sub-picture, highlight information, and a composite image in which they are composited.

[Fig. 80] Fig. 80 is a diagram for describing a video, a sub-picture, highlight information, and a composite image in which they are composited.

FIG. 81 is a diagram showing pattern pixels and enhancement pixels in sub-image data.

82 is a flowchart showing a procedure for reproducing video data in the normal mode on the optical disc having the logical format shown in FIGS. 6 to 66. FIG.

83 is a flowchart showing a procedure of reproducing video data in the normal mode on the optical disc having the logical format shown in FIGS. 6 to 66. FIG.

84 is a flow chart showing a procedure of reproducing video data in the normal mode on the optical disc having the logical format shown in FIGS. 6 to 66. FIG.

85 is a flowchart showing a procedure for changing the angle during reproduction of video data in the optical disc having the logical format shown in FIGS. 6 to 66. FIG.

FIG. 86 is a block diagram showing an encoder system that encodes video data to generate a video file.

87 is a flowchart showing the encoding process shown in FIG. 86. FIG.

88 is a flowchart for creating a file of video data by combining the main video data, audio data, and sub-video data encoded by the flow shown in FIG. 87.

FIG. 89 is a block diagram showing a system of a disk formatter for recording a formatted video file on an optical disk.

90 is a flow chart for creating logical data to be recorded on the disc in the disc formatter shown in FIG. 89. FIG.

FIG. 91 is a flowchart of creating physical data to be recorded on a disc from logical data.

92 is a schematic diagram showing a system for transferring the video title set shown in FIG. 6 via a communication system.

[Explanation of symbols]

4 ... Key operation / display section 5 ... Remote control 6 ... Monitor section 8 ... Speaker section 10 ... Optical disk 30 ... Disk drive section 50 ... System CPU section 52 ... System ROM & RAM section 56 ... Data RAM section 56A ... Memory table 64 ... D / A and playback processing unit 71 ... Video manager 72, ... Video title set 76 ... Video object set of video manager menu 79 ... Title search pointer table 81 ... Video manager menu PGCI unit table 86 ... NV pack 88 ... Video pack 90 ... Sub-picture pack 91 ... Audio pack 94 ... Video title set information 95 ... Video object set of video title set menu 96 ... Video object of title in title set 98 ... Video title set information management table 111 ... Video title set menu PGCI unit table 113 ... PCI data 113A ... Highlight general information 113B ... Button color information table 113C ... Button information table 113D-E ... Button color information 113G ... Color information 113H -... Confirmed color information 113I -... Button information 116 ... PCI packet

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichi Kikuchi 3-3-9 Shimbashi, Minato-ku, Tokyo Toshiba Abu E. Co., Ltd. (72) Inventor Kazuhiko Hirara 3-3 Shinbashi, Minato-ku, Tokyo No. 9 Toshiba Abu E Co., Ltd.

Claims (53)

[Claims] 1. A management area is formed in a part of the area and a data area is formed in another area, and at least one main video data and the main video data can be reproduced in the same time zone as the data area. At least one sub-picture data is recorded, and various contents of the main picture data can be confirmed and
At least one menu information corresponding to each of the above contents used for selection is recorded by the main video data and the sub video data. The main video data constituting the menu information is the background image, and the sub video data. Is a selection item or confirmation item, and the control data of the selection item or confirmation item composed of the sub-picture data is recorded in the data area corresponding to the corresponding main picture data. recoding media. 2. The recording medium according to claim 1, wherein at least one audio data that can be reproduced in the same time zone as the main video data is recorded in the data area. 3. The pre-selection display color information indicating the information such as the color and contrast of the sub-picture data used before the selection item is selected, and the selection item is selected as the control data of the selection item. It is composed of post-selection display color information indicating information such as color and contrast of sub-picture data used later, and selection item position information indicating a position where each selection item should be displayed. The recording medium according to item 1. 4. The control data of the confirmed item, the pre-confirmation display color information indicating information such as color and contrast of sub-picture data used before the confirmed item is confirmed, and the confirmed item are confirmed. A display color information after confirmation showing information such as color and contrast of sub-picture data to be used later, and confirmation item position information indicating a position where each confirmation item should be displayed. The recording medium according to item 1. 5. In the data area, main video data, audio data that can be reproduced in the same time zone as the main video data, or sub video data, and control data are recorded separately in a plurality of program chains. A program chain is composed of a plurality of programs, one program is composed of a plurality of cells, and one cell is recorded in a hierarchical structure composed of a plurality of packs, and each pack is a main video data pack, an audio data pack, and a sub video data pack. , Control data packs, management information for managing program chains, programs, cells, and packs in the data areas is recorded in the management area, and the menu information is recorded in title menus and programs corresponding to the program chains. Corresponding program menu, audio data Audio data menu, recording medium according to claim 1, characterized in that the sub-picture data menu corresponding to the sub-picture data. 6. A recording medium in which a management area is formed in a part of the area and a data area is formed in another area,
In a recording device for recording at least one main video data and at least one sub video data that can be reproduced in the same time zone as the main video data, various contents of the main video data can be confirmed,
A first supply means for supplying, as main video data, a background image of at least one menu information corresponding to each of the above-mentioned contents used for selection, and capable of being reproduced in the same time zone as the main video data, and Second supply means for supplying sub-picture data as a selection item or confirmation item of menu information; first encoding means for encoding the main picture data supplied by the first supply means; Second encoding means for encoding the sub-picture data supplied by the supplying means, instruction means for instructing control contents of the selection item or confirmation item of the menu information, and selection item or confirmation item instructed by the instruction means Generating means for generating control data, main video data encoded by the first encoding means, and the second video data. Recording apparatus characterized by the control data generated by the sub-picture data and the generation means being encoded equipped with a recording means for recording in the data area of the recording medium by Nkodo means. 7. The pre-selection display color information indicating the information such as the color and contrast of the sub-picture data used before the selection item is selected, and the selection item is selected as the control data of the selection item. It is composed of post-selection display color information indicating information such as color and contrast of sub-picture data used later, and selection item position information indicating a position where each selection item should be displayed. Item 6. The recording device according to item 6. 8. The confirmation item control data of the confirmation item, the confirmation item display color information indicating information such as color and contrast of sub-picture data used before the confirmation item is confirmed, and the confirmation item are confirmed. A display color information after confirmation showing information such as color and contrast of sub-picture data to be used later, and confirmation item position information indicating a position where each confirmation item should be displayed. Item 6. The recording device according to item 6. 9. The data area has main video data and sub-video data reproducible in the same time zone as the main video data divided into a plurality of program chains, each of which is composed of a plurality of programs. ,
One program is composed of a plurality of cells, one cell is recorded in a hierarchical structure composed of a plurality of packs, and each pack is composed of a main video data pack, a sub video data pack, and a control data pack, and in the management area, Management information for managing the program chains, programs, cells, and packs in the data area is recorded, and the menu information includes a title menu corresponding to each program chain, a program menu corresponding to each program, and a sub-picture corresponding to sub-picture data. The recording device according to claim 6, wherein the recording device is a data menu. 10. A recording medium in which a management area is formed in a part of the area and a data area is formed in another area, and at least one main video data is provided in the data area in the same time zone as the main video data. In a recording device for recording at least one reproducible sub-picture data and at least one audio data reproducible in the same time zone as the main video data, various contents of the main video data can be confirmed,
A first supply means for supplying, as main video data, a background image of at least one menu information corresponding to each of the above-mentioned contents used for selection, and capable of being reproduced in the same time zone as the main video data, and Second supply means for supplying sub-picture data as a selection item or confirmation item of menu information, and for supplying audio data that can be reproduced in the same time zone as the main picture data and that corresponds to the main picture data. 3, a first encoding means for encoding the main video data supplied by the first supply means, and a second encoding means for encoding the sub video data supplied by the second supply means. A third encoding means for encoding the audio data supplied by the third supplying means, and selection of the menu information. Instructing means for instructing the control contents of the eyes or the confirmed item, generating means for generating control data for the selected item or confirmed item instructed by the instructing means, and main video data encoded by the first encoding means And recording means for recording the sub-picture data encoded by the second encoding means, the audio data encoded by the third encoding means, and the control data generated by the generating means in the data area of the recording medium. A recording device comprising: 11. The pre-selection display color information indicating the information such as the color and contrast of the sub-picture data used before the selection item is selected, and the selection item is selected as the control data of the selection item. It is composed of post-selection display color information indicating information such as color and contrast of sub-picture data used later, and selection item position information indicating a position where each selection item should be displayed. Item 10. The recording device according to item 10. 12. The control data of the confirmed item, display color information before confirmation indicating information such as color and contrast of sub-picture data used before the confirmed item is confirmed, and the confirmed item are confirmed. A display color information after confirmation showing information such as color and contrast of sub-picture data to be used later, and confirmation item position information indicating a position where each confirmation item should be displayed. Item 10. The recording device according to item 10. 13. In the data area, main video data, sub video data and audio data that can be reproduced in the same time zone as the main video data are recorded in a plurality of program chains, and each program chain has a plurality of program chains. Each program is composed of a plurality of cells, one cell is recorded in a hierarchical structure of a plurality of packs, and each pack is a main video data pack, a sub video data pack, an audio data pack, and a control data pack. Management information for managing program chains, programs, cells and packs in the data area is recorded in the management area, and the menu information includes a title menu corresponding to each program chain, a program menu corresponding to each program, Sub-picture data file corresponding to sub-picture data -Menu, recording apparatus according to claim 10, characterized in that the audio data menu corresponding to the audio data. 14. A recording medium in which a management area is formed in a part of the area and a data area is formed in another area, and at least one main video data is reproduced in the data area, and is reproduced in the same time zone as the main video data. In recording at least one possible sub-picture data, it is possible to confirm various contents of the main picture data,
A background image of at least one menu information corresponding to each of the above contents used when making a selection is supplied as main video data and can be reproduced in the same time zone as the main video data, and the selection item of the menu information or Supply sub-picture data as a final item, encode the supplied main video data and sub-picture data, instruct the control contents of the selection item or final item of the menu information, and select the instructed selection item or final item. A recording method for generating control data of an item, and recording the encoded main video data, sub video data, and the generated control data in a data area of the recording medium. 15. The pre-selection display color information indicating the information such as the color and contrast of the sub-picture data used before the selection item is selected, and the selection item is selected as the control data of the selection item. The display color information after selection indicating information such as color and contrast of sub-picture data used later and selection item position information indicating a position where each selection item should be displayed. 14. The recording method according to 14. 16. The confirmation item control data of the confirmation item, the confirmation item display color information indicating information such as color and contrast of sub-picture data used before the confirmation item is confirmed, and the confirmation item are confirmed. The display color information after confirmation showing information such as color and contrast of sub-picture data used later, and confirmation item position information showing a position where each confirmation item should be displayed. 14. The recording method according to 14. 17. The data area has main video data and sub-video data reproducible in the same time zone as the main video data divided into a plurality of program chains, each of which is composed of a plurality of programs. One program is composed of a plurality of cells, one cell is recorded in a hierarchical structure composed of a plurality of packs, and each pack is composed of a main video data pack, a sub video data pack, and a control data pack. Management information for managing program chains, programs, cells and packs in the data area is recorded, and the menu information includes title menus corresponding to each program chain, program menus corresponding to each program, and sub-picture data corresponding to sub-picture data. 15. The video data menu according to claim 14, which is a video data menu. Recording method. 18. A recording medium in which a management area is formed in a part of the area and a data area is formed in another area, and at least one main video data is reproduced in the data area and reproduced in the same time zone as the main video data. In recording at least one possible sub-picture data and at least one audio data that can be reproduced in the same time zone as the main picture data, various contents of the main picture data can be confirmed,
A background image of at least one menu information corresponding to each of the above contents used when making a selection is supplied as main video data and can be reproduced in the same time zone as the main video data, and the selection item of the menu information or It supplies sub-picture data as a final item, can be reproduced in the same time zone as the main picture data, and supplies audio data corresponding to the main picture data, and supplies the supplied main picture data and sub-picture data. Encode audio data, instruct the control contents of the selection item or final item of the menu information, generate control data for the instructed selection item or final item, and encode the main video data and sub-video data And audio data and the generated control data are recorded in the data area of the recording medium. Recording method. 19. The pre-selection display color information indicating the information such as the color and contrast of the sub-picture data used before the selection item is selected, and the selection item is selected as the control data of the selection item. The display color information after selection indicating information such as color and contrast of sub-picture data used later and selection item position information indicating a position where each selection item should be displayed. The recording method according to item 18. 20. The control data of the confirmed item, the display color information before confirmation indicating information such as color and contrast of sub-picture data used before the confirmed item is confirmed, and the confirmed item are confirmed. The display color information after confirmation showing information such as color and contrast of sub-picture data used later, and confirmation item position information showing a position where each confirmation item should be displayed. The recording method according to item 18. 21. In the data area, main video data, sub-video data that can be reproduced in the same time zone as the main video data, and audio data are divided into a plurality of program chains and recorded, and each program chain has a plurality of programs. Each program is composed of a plurality of cells, one cell is recorded in a hierarchical structure of a plurality of packs, and each pack is a main video data pack, a sub video data pack, an audio data pack, and a control data pack. Management information for managing program chains, programs, cells and packs in the data area is recorded in the management area, and the menu information includes a title menu corresponding to each program chain, a program menu corresponding to each program, Sub-picture data file corresponding to sub-picture data -Menu, recording method according to claim 18, characterized in that the audio data menu corresponding to the audio data. 22. A management area is formed in a part of the area and a data area is formed in another area, and at least one main video data and the main video data can be reproduced in the same time zone in the data area. At least one sub-picture data and control data are recorded, and a background image of at least one menu information corresponding to each of the above-mentioned contents used for confirming or selecting various contents of the main-picture data. From the recording medium in which is recorded with the main video data, the selection item or the final item of the menu information is recorded with the sub video data, and the control information of the selection item or the final item of the menu information is recorded with the control data. In a reproducing device for reproducing main video data and sub video data, main video data, sub video data, and control of the data area of the recording medium are provided. Reading means for reading the data, and converting the main video data read by the reading means into reproduction output, and sub-video data read by the reading means based on the control data read by the reading means. A reproducing device comprising: a converting unit for converting to a reproduction output. 23. The pre-selection display color information indicating the information such as color and contrast of the sub-picture data used before the selection item is selected, and the selection item is selected as the control data of the selection item. It is composed of post-selection display color information indicating information such as color and contrast of sub-picture data used later, and selection item position information indicating a position where each selection item should be displayed. Item 23. The playback device according to Item 22. 24. The confirmation item control data of the confirmation item, the confirmation item display color information indicating information such as color and contrast of sub-picture data used before the confirmation item is confirmed, and the confirmation item are confirmed. A display color information after confirmation showing information such as color and contrast of sub-picture data to be used later, and confirmation item position information indicating a position where each confirmation item should be displayed. Item 23. The playback device according to Item 22. 25. In the data area, main video data and sub-video data that can be reproduced in the same time zone as the main video data are recorded in a plurality of program chains, and each program chain is composed of a plurality of programs. One program is composed of a plurality of cells, one cell is recorded in a hierarchical structure composed of a plurality of packs, and each pack is composed of a main video data pack, a sub video data pack, and a control data pack. Management information for managing program chains, programs, cells, and packs in the data area is recorded, and the menu information includes title menus corresponding to each program chain, program menus corresponding to each program, and sub-picture data corresponding to sub-picture data. 23. The image data menu according to claim 22, which is a video data menu. Raw equipment. 26. A management area is formed in a part of the area and a data area is formed in another area, and at least one main video data and the main video data can be reproduced in the same time zone in the data area. At least one sub-picture data, at least one audio data, and at least one control data are recorded, and each of the above-mentioned contents used when confirming or selecting various contents of the main video data is recorded. A background image of at least one corresponding menu information is recorded in the main video data, a selection item or confirmed item of the menu information is recorded in sub-image data, and control information of the selection item or confirmed item of the menu information is controlled. Playback device that plays back the main video data, sub-video data, and audio data from the recording medium that has been recorded with the video data. And a reading means for reading the main video data, the sub video data, the audio data, and the control data in the data area of the recording medium, and the main video data and the audio data read by the reading means are converted into reproduction output. A reproducing device comprising: a converting unit that converts the sub-picture data read by the reading unit into a reproduction output based on the control data read by the reading unit. 27. The control data of the selection item, the pre-selection display color information indicating information such as color and contrast of sub-picture data used before the selection item is selected, and the selection item are selected. It is composed of post-selection display color information indicating information such as color and contrast of sub-picture data used later, and selection item position information indicating a position where each selection item should be displayed. Item 26. The playback device according to Item 26. 28. The control data of the confirmed item, the display color information before confirmation indicating information such as color and contrast of the sub-picture data used before the confirmed item is confirmed, and the confirmed item are confirmed. A display color information after confirmation showing information such as color and contrast of sub-picture data to be used later, and confirmation item position information indicating a position where each confirmation item should be displayed. Item 26. The playback device according to Item 26. 29. In the data area, main video data, sub-video data that can be reproduced in the same time zone as the main video data, and audio data are divided into a plurality of program chains and recorded, and each program chain has a plurality of programs. Each program is composed of a plurality of cells, one cell is recorded in a hierarchical structure of a plurality of packs, and each pack is a main video data pack, a sub video data pack, an audio data pack, and a control data pack. Management information for managing program chains, programs, cells and packs in the data area is recorded in the management area, and the menu information includes a title menu corresponding to each program chain, a program menu corresponding to each program, Sub-picture data file corresponding to sub-picture data -Menu, playback apparatus according to claim 26, characterized in that the audio data menu corresponding to the audio data. 30. A management area is formed in a part of the area and a data area is formed in another area, and at least one main video data and the main video data can be reproduced in the same time zone as the data area. At least one sub-picture data and control data are recorded, and a background image of at least one menu information corresponding to each of the above-mentioned contents used for confirming or selecting various contents of the main-picture data. From the recording medium in which is recorded with the main video data, the selection item or the final item of the menu information is recorded with the sub video data, and the control information of the selection item or the final item of the menu information is recorded with the control data. When reproducing main video data and sub video data, main video data, sub video data, and control data in the data area of the recording medium are reproduced. Reading method, converting the read main video data into a reproduction output, and converting the read sub video data into a reproduction output based on the read control data. . 31. The pre-selection display color information indicating the information such as the color and contrast of the sub-picture data used before the selection item is selected, and the selection item is selected as the control data of the selection item. It is composed of post-selection display color information indicating information such as color and contrast of sub-picture data used later, and selection item position information indicating a position where each selection item should be displayed. Item 30. The reproducing method according to Item 30. 32. The control data of the confirmed item, the pre-confirmation display color information indicating information such as color and contrast of sub-picture data used before the confirmed item is confirmed, and the confirmed item are confirmed. A display color information after confirmation showing information such as color and contrast of sub-picture data to be used later, and confirmation item position information indicating a position where each confirmation item should be displayed. Item 30. The reproducing method according to Item 30. 33. In the data area, main video data and sub-video data that can be reproduced in the same time zone as the main video data are recorded in a plurality of program chains, and each program chain is composed of a plurality of programs. One program is composed of a plurality of cells, one cell is recorded in a hierarchical structure composed of a plurality of packs, and each pack is composed of a main video data pack, a sub video data pack, and a control data pack. Management information for managing program chains, programs, cells and packs in the data area is recorded, and the menu information includes title menus corresponding to each program chain, program menus corresponding to each program, and sub-picture data corresponding to sub-picture data. 31. The image data menu according to claim 30, which is a video data menu. Raw way. 34. A management area is formed in a part of the area and a data area is formed in another area, and at least one main video data and the main video data can be reproduced in the same time zone in the data area. At least one sub-picture data, at least one audio data, and at least one control data are recorded, and each of the above-mentioned contents used when confirming or selecting various contents of the main video data is recorded. A background image of at least one corresponding menu information is recorded in the main video data, a selection item or confirmed item of the menu information is recorded in sub-image data, and control information of the selection item or confirmed item of the menu information is controlled. For reproducing main video data, sub-video data, and audio data from a recording medium that has been recorded with audio data Reading the main video data, sub-video data, audio data, and control data in the data area of the recording medium, converting the read main video data and audio data into reproduction output, and reading the control data. A reproducing method characterized by converting the read sub-picture data into a reproduction output based on the data. 35. The control data of the selection item, the pre-selection display color information indicating information such as color and contrast of sub-picture data used before the selection item is selected, and the selection item are selected. It is composed of post-selection display color information indicating information such as color and contrast of sub-picture data used later, and selection item position information indicating a position where each selection item should be displayed. Item 34. The reproducing method according to Item 34. 36. The control data of the confirmed item, display color information before confirmation showing information such as color and contrast of sub-picture data used before the confirmed item is confirmed, and the confirmed item are confirmed. A display color information after confirmation showing information such as color and contrast of sub-picture data to be used later, and confirmation item position information indicating a position where each confirmation item should be displayed. Item 34. The reproducing method according to Item 34. 37. In the data area, main video data, sub-video data that can be reproduced in the same time zone as the main video data, and audio data are divided into a plurality of program chains and recorded, and each program chain has a plurality of programs. Each program is composed of a plurality of cells, one cell is recorded in a hierarchical structure of a plurality of packs, and each pack is a main video data pack, a sub video data pack, an audio data pack, and a control data pack. Management information for managing program chains, programs, cells and packs in the data area is recorded in the management area, and the menu information includes a title menu corresponding to each program chain, a program menu corresponding to each program, Sub-picture data file corresponding to sub-picture data The reproducing method according to claim 34, wherein the-menu, an audio data menu corresponding to the audio data. 38. A management area is formed in a part of the area and a data area is formed in another area, and at least one main video data and the main video data can be reproduced in the same time zone in the data area. At least one sub-picture data and control data are recorded, and a background image of at least one menu information corresponding to each of the above-mentioned contents used for confirming or selecting various contents of the main-picture data. From the recording medium in which is recorded with the main video data, the selection item or the final item of the menu information is recorded with the sub video data, and the control information of the selection item or the final item of the menu information is recorded with the control data. In a communication system that reads main video data, sub-video data, and control data and communicates with the outside, the main area of the data area of the recording medium Reading means for reading data, sub-picture data, and control data; communication means for communicating the main picture data, sub-picture data, and control data read by the reading means to the outside; And a conversion means for converting the main video data to a reproduction output and converting the sub-video data communicated by the communication means to a reproduction output based on the control data communicated by the communication means. A communication system characterized by. 39. The control data of the selection item, the pre-selection display color information indicating information such as color and contrast of sub-picture data used before the selection item is selected, and the selection item are selected. The display color information after selection indicating information such as color and contrast of sub-picture data used later and selection item position information indicating a position where each selection item should be displayed. 38. A communication system according to item 38. 40. The control data of the confirmed item, the display color information before confirmation indicating information such as color and contrast of the sub-picture data used before the confirmed item is confirmed, and the confirmed item are confirmed. The display color information after confirmation showing information such as color and contrast of sub-picture data used later, and confirmation item position information showing a position where each confirmation item should be displayed. 38. A communication system according to item 38. 41. In the data area, main video data and sub-video data that can be reproduced in the same time zone as the main video data are recorded in a plurality of program chains, and each program chain is composed of a plurality of programs. One program is composed of a plurality of cells, one cell is recorded in a hierarchical structure composed of a plurality of packs, and each pack is composed of a main video data pack, a sub video data pack, and a control data pack. Management information for managing program chains, programs, cells and packs in the data area is recorded, and the menu information includes title menus corresponding to each program chain, program menus corresponding to each program, and sub-picture data corresponding to sub-picture data. 39. The image data menu according to claim 38, which is a video data menu. Shin system. 42. A management area is formed in a part of the area, and a data area is formed in another area, and at least one main video data and the main video data can be reproduced in the same time zone as the data area. At least one sub-picture data, at least one audio data, and at least one control data are recorded, and each of the above-mentioned contents used when confirming or selecting various contents of the main video data is recorded. A background image of at least one corresponding menu information is recorded in the main video data, a selection item or confirmed item of the menu information is recorded in sub-image data, and control information of the selection item or confirmed item of the menu information is controlled. Main video data, sub video data, audio data and control data are read from the recording medium recorded with In a communication system for communicating to the outside, a reading means for reading main video data, sub-video data, audio data and control data in the data area of the recording medium, and main video data, sub-video data read by the reading means, Communication means for communicating audio data and control data to the outside, and converting the main video data and audio data communicated by this communication means into reproduction output, and based on the control data communicated by the communication means, And a conversion unit for converting the sub-picture data communicated by the communication unit into a reproduction output. 43. The control data of the selection item, the pre-selection display color information indicating information such as color and contrast of sub-picture data used before the selection item is selected, and the selection item are selected. The display color information after selection indicating information such as color and contrast of sub-picture data used later and selection item position information indicating a position where each selection item should be displayed. 42. The communication system according to 42. 44. The control data of the confirmed item, the display color information before confirmation indicating information such as color and contrast of sub-picture data used before the confirmed item is confirmed, and the confirmed item are confirmed. The display color information after confirmation showing information such as color and contrast of sub-picture data used later, and confirmation item position information showing a position where each confirmation item should be displayed. 42. The communication system according to 42. 45. In the data area, main video data, sub-video data that can be reproduced in the same time zone as the main video data, and audio data are divided into a plurality of program chains and recorded, and each program chain has a plurality of programs. Each program is composed of a plurality of cells, one cell is recorded in a hierarchical structure of a plurality of packs, and each pack is a main video data pack, a sub video data pack, an audio data pack, and a control data pack. Management information for managing program chains, programs, cells and packs in the data area is recorded in the management area, and the menu information includes a title menu corresponding to each program chain, a program menu corresponding to each program, Sub-picture data file corresponding to sub-picture data Communication system according to claim 42, wherein the-menu, an audio data menu corresponding to the audio data. 46. A management area is formed in a part of the area and a data area is formed in another area, and at least one main video data and the main video data can be reproduced in the same time zone as the data area. At least one sub-picture data and control data are recorded, and a background image of at least one menu information corresponding to each of the above-mentioned contents used for confirming or selecting various contents of the main-picture data. From the recording medium in which is recorded with the main video data, the selection item or the final item of the menu information is recorded with the sub video data, and the control information of the selection item or the final item of the menu information is recorded with the control data. In the case where the main video data, the sub video data, and the control data are read and externally reproduced, the above recording is performed. The main image data, sub image data, and control data in the body data area are read, the read main image data, sub image data, and control data are communicated to the outside, and the communicated main image data is A communication method, characterized by converting to reproduction output, and converting the communicated sub-picture data to reproduction output based on the communicated control data. 47. The pre-selection display color information indicating the information such as the color and contrast of the sub-picture data used before the selection item is selected, and the selection item is selected as the control data of the selection item. It is composed of post-selection display color information indicating information such as color and contrast of sub-picture data used later, and selection item position information indicating a position where each selection item should be displayed. Item 46. The communication method according to Item 46. 48. The confirmation item display color information indicating information such as color and contrast of sub-picture data used before the confirmation item is confirmed, and the confirmation item are selected as the confirmation item control data. A display color information after confirmation showing information such as color and contrast of sub-picture data to be used later, and confirmation item position information indicating a position where each confirmation item should be displayed. Item 46. The communication method according to Item 46. 49. In the data area, main video data and sub-video data that can be reproduced in the same time zone as the main video data are recorded in a plurality of program chains, and each program chain is composed of a plurality of programs. One program is composed of a plurality of cells, one cell is recorded in a hierarchical structure composed of a plurality of packs, and each pack is composed of a main video data pack, a sub video data pack, and a control data pack. Management information for managing program chains, programs, cells and packs in the data area is recorded, and the menu information includes title menus corresponding to each program chain, program menus corresponding to each program, and sub-picture data corresponding to sub-picture data. 47. The image data menu according to claim 46. Shin method. 50. A management area is formed in a part of the area, and a data area is formed in another area, and at least one main video data and the main video data can be reproduced in the same time zone as the data area. At least one sub-picture data, at least one audio data, and at least one control data are recorded, and each of the above-mentioned contents used when confirming or selecting various contents of the main video data is recorded. A background image of at least one corresponding menu information is recorded in the main video data, a selection item or confirmed item of the menu information is recorded in sub-image data, and control information of the selection item or confirmed item of the menu information is controlled. Main video data, sub video data, audio data, and control data are read from a recording medium that has been recorded with data , The main video data, the sub video data, the audio data, and the control data in the data area of the recording medium are read out by communicating with the outside, and the read main video data, the sub data are read. Video data, audio data and control data are communicated to the outside, and the communicated main video data and audio data are converted into reproduction output, and the communicated sub-picture is based on the communicated control data. A communication method characterized by converting data to reproduction output. 51. The pre-selection display color information indicating the information such as the color and contrast of the sub-picture data used before the selection item is selected, and the selection item is selected as the control data of the selection item. It is composed of post-selection display color information indicating information such as color and contrast of sub-picture data used later, and selection item position information indicating a position where each selection item should be displayed. Item 50. The communication method according to Item 50. 52. As for the control data of the confirmed item, display color information before confirmation indicating information such as color and contrast of sub-picture data used before the confirmed item is confirmed, and the confirmed item is selected. A display color information after confirmation showing information such as color and contrast of sub-picture data to be used later, and confirmation item position information indicating a position where each confirmation item should be displayed. Item 51. The communication method according to Item 51. 53. In the data area, main video data, sub-video data that can be reproduced in the same time zone as the main video data, and audio data are divided into a plurality of program chains and recorded, and each program chain has a plurality of programs. Each program is composed of a plurality of cells, one cell is recorded in a hierarchical structure of a plurality of packs, and each pack is a main video data pack, a sub video data pack, an audio data pack, and a control data pack. Management information for managing program chains, programs, cells and packs in the data area is recorded in the management area, and the menu information includes a title menu corresponding to each program chain, a program menu corresponding to each program, Sub-picture data file corresponding to sub-picture data The communication method according to claim 51, wherein the-menu, an audio data menu corresponding to the audio data.