JP2009044491A - Image reproducer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image reproducer capable of changing the number of thumbnail images to be displayed by listing in a display device in response to the resolution of the display device of a connection destination. <P>SOLUTION: When it is determined that the number of thumbnail images fits any of displayable numbers equal to or less than the respective maximum numbers, the resolution corresponding to the maximum displayable number, which fits any displayable numbers equal to or less than the maximum numbers, is read from a table, thereby determining whether or not the read resolution coincides with the resolution of the display device. When the read resolution is determined not to coincide with the resolution of the display device, the read resolution is changed to be the resolution of the display device. Then, the number of the thumbnail images with the changed resolution is renewed within the range of the maximum displayable number corresponding to the resolution. Thus, the thumbnail images are displayed on the display device. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an information reproducing apparatus that reproduces information recorded on a recording medium, and more particularly to a thumbnail image display process.

  In recent years, as this type of information reproducing apparatus, for example, an optical disk reproducing apparatus (DVD player), an optical disk recording / reproducing apparatus (DVD recorder), a hard disk recorder, and the like have become widespread, and as devices connected to these information reproducing apparatuses, Television receivers and the like are known. The ultra-high definition of the display screen of a television receiver has been remarkably developed with the progress of the liquid crystal panel manufacturing technology, and it has become possible to display video data with a very large amount of information in high definition. In such a television receiver, an interface called HDMI (High Definition Multimedia Interface) is used to transmit a large amount of video data and audio data from an information reproducing device.

  HDMI is an interface for transmitting video data and audio data from an information reproducing device to a television receiver or the like. HDMI is an extension of DVI (Digital Visual Interface for Computer) Ver1.0, which is a conventional standard. Specifically, DVI is a standard interface that transmits only video data, whereas HDMI is a standard interface that can transmit audio data and other data as well as video data over a single cable. Furthermore, HDMI can transmit high-quality multi-channel audio data and high-resolution video data in various formats.

  HDMI can also be used to transmit various types of information (monitor information, eg, EDID data structure, etc.) by DDC (Display Data Channel) communication. EDID (Extended Display Identification Data) includes resolution that can be received by a television receiver, audio stream information (information such as audio format), speaker information of an HDMI receiving unit, and the like. Also, HDMI has the advantage that video data and audio data can be transmitted with a single cable, eliminating the troublesome connection of multiple cables. For example, when outputting content in a CSS (Content Scrambling System) from an information playback device such as an optical disk playback device, HDMI is an interface with a standard approved by the CPAC (Copy Protection Advisory Council).

The DDC is a name of a communication format, and is used to transmit other data related to the HDMI monitor to an information reproducing apparatus such as an optical disk reproducing apparatus in addition to data of video data display conditions and audio data conditions. Line. The DDC is connected to a communication line in an information reproducing apparatus such as an optical disk reproducing apparatus, and is used to establish a line between the information reproducing apparatus and the television receiver. The CSS is a system in which data is encrypted and recorded, and decrypted during reproduction. Also, HDMI has a control function called CEC (Consumer Electronics Control), and the main power is turned on and off by commands between the information reproducing apparatus and the television receiver, and other controls are performed in conjunction with each other. Can do.
JP 11-215455 A JP 2004-328711 A

  Incidentally, in recent years, with the spread of digital cameras, still image files (jpeg files) of personal assets are increasing. In order to display a list of such still image files as thumbnail images, the recording medium on which the still image file is recorded is loaded into the information reproducing device as described above, and the still image is displayed on the display device of the HDMI-connected television receiver. There are cases where it is used to display a list of thumbnail images of files.

  The problem here is, for example, when there are 80 still image files and it is desired to display a list of 80 thumbnail images on the display device (see FIG. 4), the information playback device uses 1080i (interlaced 1080p). × 1920 dots), 720p (progressive 720 × 1024 dots), 480i (interlaced 480 × 640 dots), and a television receiver having a resolution of 1080i, the display device has 80 Even if a list of thumbnail images is displayed, the resolution is high so that the user can view the contents of 80 thumbnail images. However, if the television receiver has only a resolution of 720p or 480i. , Even if you display a list of 80 thumbnail images at 720p or 480i resolution, Becomes painful to understand the contents thumbnails image of the image becomes rough. On the other hand, when the information reproducing apparatus has only a resolution of 720p or 480i, or when a list of 80 thumbnail images is displayed on the display device at a resolution of 720p or 480i, thumbnail images are not displayed. It becomes rough and difficult to understand.

  In short, even if the display device has a resolution of 1080i, 720p, and 480i, if the information playback device has only a resolution of 720p or 480i, if many thumbnail images are displayed on the display device as a list, There arises a problem that the thumbnail image becomes rough and difficult to understand. Conversely, if the information playback device has a resolution of 1080i, 720p, or 480i, but the display device has only a resolution of 720p or 480i, the information playback device can handle the resolution of 720p or 480i. Therefore, even when a large number of thumbnail images are displayed in a list on the display device, there arises a problem that the thumbnail images become rough and the contents are difficult to understand.

  Note that the prior art of Patent Document 1 has a small number of frames when the number of display frames of the image data stored in the image file is large when browsing in the browsing display mode in which only a predetermined part of the image file is displayed. The data size of a predetermined part is made smaller than that of the time, but the number of thumbnail images in the list display cannot be changed according to the resolution of the connected display device, so that the above-mentioned problems are solved. I can't.

  The prior art of Patent Document 2 creates thumbnails from images stored in a screen database and displays thumbnail images in a list display area of a display device. N thumbnails are displayed in the list display area. Although it is possible to form a thumbnail image having a suitable size for display, this conventional technology also cannot change the number of thumbnail images displayed in a list display according to the resolution of the display device to which it is connected. Therefore, the above problems cannot be solved.

  The present invention has been made to solve the above-described problems, and provides an information reproducing apparatus capable of changing the number of thumbnail images to be displayed as a list on the display device in accordance with the resolution of the connected display device. The purpose is to do.

  In order to achieve the above object, the invention of claim 1 is displayed with a plurality of types of resolutions determined in the standard, the maximum number of thumbnail images that can be displayed at each resolution, and the maximum number of displayable images. The table showing the relationship with the size of each thumbnail image at the time of recording is stored in the memory in advance, and a plurality of still image files are recorded on the recording medium, and the plurality of still image files are displayed as thumbnail images. When displaying on the device, when reproducing the plurality of still image files, the thumbnail image number recognition means for detecting the number of files from file management information and recognizing the number of thumbnail images, and the number of recognized thumbnail images The maximum displayable number determination method for determining whether or not any of the maximum displayable number corresponding to each resolution shown in the table falls below. And the resolution corresponding to the maximum displayable number corresponding to any one of the maximum displayable number or less is determined as the number of recognized thumbnail images corresponding to any of the maximum displayable number or less. A resolution determination unit that reads from the table and determines whether or not the read resolution matches the resolution of the display device, and determines that the read resolution and the resolution of the display device match. A first display control means for displaying the thumbnail image on the display device with the resolution at the coincidence and within the range of the maximum displayable number corresponding to the resolution; and the read resolution And the resolution of the display device when it is determined that the resolution does not match the resolution of the display device Resolution changing means for changing, and a second display for changing the number of thumbnail images within the range of the maximum displayable number corresponding to the changed resolution and displaying the thumbnail images on the display device There is provided an information reproducing apparatus comprising a system controller having control means.

  In this configuration, when a plurality of still image files are recorded on the recording medium and the plurality of still image files are displayed on the display device as thumbnail images, the number of files is determined based on file management information when the plurality of still image files are reproduced. Is detected and the number of thumbnail images is recognized. When it is determined that the number of recognized thumbnail images falls below any of the maximum displayable numbers, the resolution corresponding to the maximum displayable number corresponding to any of the maximum displayable numbers is read from the table. When it is determined that the read resolution and the resolution of the display device match, the thumbnail image has the same resolution and the maximum number of displayable images corresponding to the resolution. Is displayed on the display device. When it is determined that the read resolution and the resolution of the display device do not match, the read resolution is changed to the resolution of the display device. Then, the number of thumbnail images is changed with the changed resolution and within the range of the maximum displayable number corresponding to the resolution, and the thumbnail images are displayed on the display device.

  According to this configuration, the number of thumbnail images to be displayed as a list on the display device can be changed according to the resolution of the connected display device, so that the user can more easily view thumbnail images of still image files such as photo files. It becomes easy to do.

  In the invention of claim 2, in the invention of claim 1, the plurality of types of resolutions determined in the standard are at least resolution 1080i, resolution 720p, and resolution 480i, so at least 1080i, 720p, and 480i. It is possible to perform processing for thumbnail images on an information reproducing apparatus and a display apparatus having a resolution.

  In the invention of claim 3, in the invention of claim 1, the maximum displayable number of thumbnail images to be displayed at each resolution is at least the maximum number of thumbnail images visible at a resolution of 1080i, and a visible thumbnail at a resolution of 720p. Since the maximum number of images is the maximum number of thumbnail images that can be viewed at a resolution of 480i, it is possible to change the number of thumbnail images in the list display according to each resolution.

  As described above, according to the present invention, the number of thumbnail images to be displayed in a list on the display device can be changed according to the resolution of the connected display device, so that the user can select a thumbnail image of a still image file such as a photo file. Is easier to browse.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing a configuration including a BD (Blu-ray Disc) player as an information reproducing apparatus according to an embodiment of the present invention.

  In FIG. 1, a BD player 1 includes a system controller 11 including a microcomputer that controls the entire apparatus, a remote control receiving unit 12 that receives a key code (remote control code) transmitted from a remote control 4, and an HDMI (High Definition). (Multimedia Interface) A flash ROM 13 storing a table showing the correspondence between the manufacturer name of the television receiver 2 connected by the cable 3 and the remote control code, and the television receiver 2 (monitor device) for setting screens and character information. An OSD circuit 14 that performs OSD (On Screen Display) processing for display on a recording medium such as a BD, an SD (Secure Digital) memory card, and a CF (Compact Flash) card. 15 and the television receiver 2 via the HDMI cable 3 Cormorant and a HDMI communication section 16.

  The television receiver 2 includes an EDID (Extended Display Identification Data) having a control unit 21 including a microcomputer for controlling the entire receiver, and identifier data in a predetermined format including a control program of the control unit 21 and a manufacturer name of the receiver. And the like, a display device 23 that displays video, an audio output unit 24 that outputs audio including an audio circuit and a speaker, and an HDMI communication unit that communicates with the BD player 1 via the HDMI cable 3 25 and a remote control receiver 26 for receiving a key code transmitted from the remote controller 5 attached to the television receiver 2.

  The remote controller 4 includes a control unit 41 including a microcomputer for controlling the entire remote controller, an operation panel 42 provided with a plurality of operation keys to which operation key numbers are assigned in advance and which remotely operate the BD player 1 and the television receiver 2. A remote control transmission unit 43 that transmits a key code corresponding to the operation key of the operation panel 42 to the BD player 1 or the television receiver 2 via the BD player 1 and the HDMI cable 3, and a plurality of key codes to the operation panel 42. And a flash ROM 44 for storing in an address corresponding to the operation key number of the operation key.

  FIG. 2 is a diagram showing an example of a key arrangement on the remote controller 4 attached to the BD player in the present embodiment. 2, the operation panel 42 of the remote controller 4 includes a power key 401, a tray opening / closing key 402, an input mode switching key 418, a volume key 403, a plurality of numeric keys 404, a BD mode switching key 405, a TV mode switching key 406, Play list key 407, setting screen key 408, upward-409, down key 410, left key 411, right key 412, enter key 413, fast reverse key 414, stop key 415, play key 416, fast forward key 417 Etc. are arranged. Note that the arrangement and number of keys here are only examples, and the present invention is not limited to this.

  FIG. 3 is a diagram showing an example of the contents of a table showing the relationship among the resolution, the maximum displayable number of images, and the thumbnail image size in the present embodiment.

  In this table T, the resolution is the resolution of thumbnail images displayed on the display device 23 of the television receiver 2 (see FIG. 1), and the maximum displayable number is that a plurality of thumbnail images are displayed on the screen of the display device 23. Indicates the maximum number of displayable thumbnail images displayed in a list. The maximum number of displayable images is the maximum number of thumbnail images that can be displayed at a resolution that can be seen by the user at the set resolution. For example, if the resolution is 1080i (1080 × 1920 dots in interlace), the thumbnail image is displayed. Up to 80 images can be displayed in a list display, and if the resolution is 720p (progressive 720 × 1024 dots), up to 20 thumbnail images can be displayed in a list display, and the resolution is 480i (interlaced 480 × 640 dots). ) Indicates that up to eight thumbnail images can be displayed in a list. If the resolution and the maximum number of displayable images are determined, the thumbnail image size (dot) is determined.

  FIG. 4 is a diagram illustrating an example of a display image screen in which a list of 80 thumbnail images having a resolution of 1080i and a size of 105 × 105 is displayed on the display device in the present embodiment. FIG. 5 is a diagram showing an example of a display image screen in which 20 thumbnail images having a resolution of 720p and a size of 150 × 150 are displayed as a list on the display device in the present embodiment. FIG. 6 is a diagram showing an example of a display image screen in which a list is displayed on the display device with eight thumbnail images having a resolution of 480i and a size of 210 × 210 in the present embodiment.

  FIG. 7 is a flowchart for explaining processing for setting the relationship among the resolution, the maximum displayable number of images, and the thumbnail image size as a table in the present embodiment. With reference to this flowchart and FIGS. 1 to 6, processing for setting the relationship among the resolution, the maximum displayable number of images, and the thumbnail image size as a table will be described.

  First, when the user depresses the power key 401 of the remote controller 4 to turn on the main power of the BD player 1 and the television receiver 2, the remote control transmitter 43 of the remote controller 4 causes the power key code corresponding to the power key 401 to be turned on. Is transmitted to the BD player 1. In the BD player 1, the remote controller receiver 12 receives the power key code from the remote controller transmitter 43, and the system controller 11 that has input the power key code operates a main power circuit (not shown) in the BD player 1 to operate the BD player 1. While turning on the main power supply of the player 1, the HDMI communication unit 16 transmits a power-on command for turning on the main power supply of the television receiver 2. The power-on command transmitted from the HDMI communication unit 16 is given to the television receiver 2 via the HDMI cable 3. Thereby, the control unit 21 of the television receiver 2 operates a main power supply circuit (not shown) in the television receiver 2 according to the power-on command received by the HDMI communication unit 25 to turn on the main power supply.

  Thereafter, when the user operates the setting screen key 408 of the remote controller 4, the system controller 11 of the BD player 1 detects that the setting screen display operation has been performed (step S1), and is stored in the flash ROM 13 in advance. The setting screen data is read, the OSD process is performed by the OSD circuit 14, and the setting screen data is transmitted from the HDMI communication unit 16. The television receiver 2 that has received the setting screen data transmitted via the HDMI cable 3 by the HDMI communication unit 25 displays the setting screen on the display device 23 under the control of the control unit 21 (step S2).

  On the setting screen, “1080i”, “720p”, “480i” as resolutions, “80”, “20”, “8” as maximum displayable numbers, and “105 ×” as thumbnail image sizes. When the system controller 11 detects that “105”, “150 × 150”, and “210 × 210” are set and completed by operating the remote controller 4 (step S3), the system controller 11 displays the display device 23. Is deleted (step S4), and a table T (see FIG. 3) showing the relationship among the set resolution, the maximum number of displayable images and the thumbnail image size is stored in the flash ROM 13 (step S5). ).

  FIG. 8 is a flowchart for explaining the processing when thumbnail images are displayed as a list on the display device in the present embodiment. Processing for displaying a list of thumbnail images on the display device will be described with reference to this flowchart and FIGS.

  First, in order to turn on the main power of the BD player 1 and the television receiver 2, when the user presses the power key 401 of the remote controller 4, the remote control transmission unit 43 of the remote controller 4 sets the power key code corresponding to the power key 401 to BD. It is transmitted to the player 1. In the BD player 1, the remote controller receiver 12 receives the power key code from the remote controller transmitter 43, and the system controller 11 that has input the power key code operates a main power circuit (not shown) in the BD player 1 to operate the BD player 1. While turning on the main power supply of the player 1, the HDMI communication unit 16 transmits a power-on command for turning on the main power supply of the television receiver 2. The power-on command transmitted from the HDMI communication unit 16 is given to the television receiver 2 via the HDMI cable 3. Thereby, the control unit 21 of the television receiver 2 operates a main power supply circuit (not shown) in the television receiver 2 according to the power-on command received by the HDMI communication unit 25 to turn on the main power supply.

  In the description here, it is assumed that a reproduction operation is performed on the recording medium K on which a plurality of still image files (jpeg files) are recorded. Examples of the recording medium K include a DVD, a BD, an SD card, and a CF card.

  When the recording medium K on which a plurality of still image files are recorded is loaded into the BD player 1, the system controller 11 starts loading the recording medium K and completes loading (step N1). After the loading is completed, when the user operates the reproduction key 416 of the remote controller 4, the system controller 11 detects that the reproduction has been instructed (step N2), whereby the thumbnail image number recognition means of the system controller 11 is detected. When reproducing the plurality of still image files, the number of files is detected from the file management information recorded on the recording medium K to recognize the number of thumbnail images (step N3).

  Then, the maximum displayable number determination means of the system controller 11 determines whether or not the number of recognized thumbnail images falls below any of the maximum displayable number corresponding to each resolution indicated by the table T. (Steps N4, N5, N6). When it is determined that the recognized number of thumbnail images falls below any of the maximum displayable numbers (steps N4, N5, and N6), the resolution determination unit of the system controller 11 reduces the maximum displayable number of images. The resolution corresponding to the maximum displayable number corresponding to any one is read from the table T, and it is determined whether or not the read resolution matches the resolution of the display device 23 (steps N7, N8, N9).

  For example, when it is determined that the number of set thumbnail images is 8 or less, the resolution determination unit of the system controller 11 matches the resolution 480i read from the table T with the resolution of the display device 23. Whether or not (step N7). When it is determined that the resolution of the display device 23 is 480i and the two resolutions match, the first display control unit of the system controller 11 displays the maximum display corresponding to the resolution 480i with the resolution 480i when the resolutions match. Thumbnail images (see FIG. 6) are displayed on the display device 23 with the number within the range of the possible number (step N10).

  In FIG. 6, eight thumbnail images (images in the display frame are not shown) are displayed, but even 1 to 7 thumbnail images can be displayed. If the display device 23 can only support the resolution 480i and there are more than eight thumbnail images, the list screen shown in FIG. 6 may be scrolled by the scroll operation of the remote controller 4.

  When it is determined that the set number of thumbnail images is 8 or less (step N4), and it is determined that the resolution 480i read from the table T and the resolution of the display device 23 do not match (step N7). ) The resolution changing means of the system controller 11 changes the resolution on the BD player 1 side to the resolution on the television receiver 2 side (step N11). For example, if the resolution on the television receiver 2 side is only 720p, the resolution on the BD player 1 side is changed to 720p (step N11). Then, the second display control means of the system controller 11 displays the thumbnail images on the display device 23 with the changed resolution 720p and the number within the range of the maximum displayable number 20 corresponding to the resolution 720p. (Step N14).

  Note that the thumbnail images at the resolution changed from 480i to 720p are displayed as a list of thumbnail images in the display frame as shown in FIG. 5 depending on the relationship between the resolution set in the table T and the thumbnail image size. . This change in resolution reduces the thumbnail image display frame, but the resolution increases, so there is no problem for the user to read the contents of the thumbnail image.

  If the resolution on the television receiver 2 side is only 1080i, the resolution on the BD player 1 side is changed to 1080i (step N11). Then, the second display control means of the system controller 11 causes the display device 23 to display thumbnail images with the changed resolution 1080i and the number within the range of the maximum displayable number 80 corresponding to the resolution 1080i ( Step N14).

  Note that thumbnail images with a resolution changed from 480i to 1080i are displayed as a list of thumbnail images in a display frame as shown in FIG. 4 depending on the relationship between the resolution set in the table T and the thumbnail image size. . By changing the resolution, the display frame becomes smaller, but the resolution becomes higher, so there is no problem for the user to read the contents of the thumbnail image.

  For example, when it is determined that the set number of thumbnail images is 9 to 20, the resolution determination unit of the system controller 11 determines that the resolution 720p read from the table T and the resolution of the display device 23 are the same. It is determined whether or not they match (step N8). When the resolution of the display device 23 is 720p and it is determined that both resolutions match, the first display control means of the system controller 11 displays the maximum display corresponding to the resolution 720p at the resolution 720p when the resolutions match. Thumbnail images (see FIG. 5) are displayed on the display device 23 with the number within the range of the possible number (step N12).

  In FIG. 5, 20 thumbnail images (images in the display frame are not shown) are displayed, but 9 to 19 thumbnail images can be displayed. If the display device 23 can only support the resolution 720p and there are more than 20 thumbnail images, the list screen shown in FIG.

  When it is determined that the set number of thumbnail images is 9 to 20 (step N5), and it is determined that the resolution 720p read from the table T and the resolution of the display device 23 do not match (step S5). N8) The resolution changing means of the system controller 11 changes the resolution on the BD player 1 side to the resolution on the television receiver 2 side. For example, if the resolution on the television receiver 2 side is only 1080i, the resolution on the BD player 1 side is changed to 1080i (step N11). Then, the second display control means of the system controller 11 causes the display device 23 to display thumbnail images with the changed resolution 1080i and the number within the range of the maximum displayable number 80 corresponding to the resolution 1080i ( Step N14).

  Note that thumbnail images with a resolution changed from 720p to 1080i are displayed as a list of thumbnail images in the display frame as shown in FIG. 4 depending on the relationship between the resolution set in the table T and the thumbnail image size. . By changing the resolution, the display frame becomes smaller, but the resolution becomes higher, so there is no problem for the user to read the contents of the thumbnail image.

  For example, when it is determined that the set number of thumbnail images is 21 to 80 (step N6), the resolution determination unit of the system controller 11 reads the resolution 1080i read from the table T and the display device 23. It is determined whether the resolution matches (step N9). When it is determined that the resolution of the display device 23 is 1080i and the two resolutions match, the first display control means of the system controller 11 has the resolution 1080i at the time of matching and the maximum display corresponding to the resolution 1080i. Thumbnail images (see FIG. 4) are displayed on the display device 23 with the number within the range of the possible number 80 (step N13).

  In FIG. 4, 80 thumbnail images (images in the display frame are not shown) are displayed. However, even thumbnail images exceeding 80 images can be displayed by scrolling. That is, when the display device 23 can only support resolution 1080i and there are more than 80 thumbnail images, the list screen shown in FIG. 4 may be scrolled by scrolling the remote controller 4.

  When it is determined that the set number of thumbnail images is 21 to 80 (step N6), and it is determined that the resolution 1080i read from the table T and the resolution of the display device 23 do not match (step S6). N9) The resolution changing means of the system controller 11 changes the resolution on the BD player 1 side to the resolution on the television receiver 2 side. For example, if the resolution on the television receiver 2 side is only 720p, the resolution on the BD player 1 side is changed to 720p (step N11). Then, the second display control means of the system controller 11 displays the thumbnail images on the display device 23 with the changed resolution 720p and the number within the range of the maximum displayable number 20 corresponding to the resolution 720p ( Step N14).

  For example, a thumbnail image with a resolution changed from 1080i to 720p is displayed as a list of thumbnail images in a display frame as shown in FIG. 5 depending on the relationship between the resolution set in the table T and the thumbnail image size. Done. This resolution change lowers the resolution but increases the display frame, so there is no problem for the user to read the contents of the thumbnail image.

  As described above, according to the present embodiment, the number of thumbnail images to be displayed as a list on the display device 23 can be changed according to the resolution of the display device 23, so that the user can thumbnail thumbnails of still image files such as photo files. It becomes easier to view the image.

  The present invention can be used for a thumbnail image display function in an information reproducing apparatus having a high resolution such as a BD player.

It is a block diagram which shows the structure containing the BD player as an information reproduction apparatus which concerns on one Embodiment of this invention. It is a figure which shows an example of the key arrangement | positioning in the remote control 4 attached to a BD player in the said embodiment. It is a figure which shows an example of the content of the table which shows the relationship between the resolution, the maximum displayable number of sheets, and the thumbnail image size in the said embodiment. FIG. 10 is a diagram illustrating an example of a display image screen in which 80 thumbnail images having a resolution of 1080i and a size of 105 × 105 are listed on the display device in the embodiment. In the said embodiment, it is a figure which shows an example of the display image screen by which the resolution is 720p and 20 thumbnail images of the size of 150x150 are displayed as a list on the display device. FIG. 10 is a diagram illustrating an example of a display image screen in which eight thumbnail images having a resolution of 480i and a size of 210 × 210 are displayed as a list on the display device in the embodiment. 4 is a flowchart for explaining processing for setting a relationship among a resolution, a maximum displayable number of images, and a thumbnail image size as a table in the embodiment. 4 is a flowchart for explaining processing when displaying thumbnail images in a list on the display device in the embodiment.

Explanation of symbols

1 BD player (information playback device)
11 System controller (thumbnail image number recognition means, maximum displayable number determination means, resolution determination means, first display control means, resolution change means, second display control means)
13 Flash ROM (memory)
23 Display device T table

Claims (3)

In an information reproducing apparatus for reproducing information recorded on a recording medium,
A table showing the relationship between a plurality of resolutions determined in the standard, the maximum displayable number of thumbnail images displayed at each resolution, and the size of each thumbnail image when displayed at the maximum displayable number Having a configuration stored in advance in memory;
When a plurality of still image files are recorded on the recording medium and the plurality of still image files are displayed as thumbnail images on the display device,
Thumbnail image number recognition means for detecting the number of files from file management information and recognizing the number of thumbnail images when reproducing the plurality of still image files;
Maximum displayable number determination means for determining whether the number of recognized thumbnail images corresponds to any of the maximum displayable number corresponding to each resolution indicated in the table;
When it is determined that the recognized number of thumbnail images corresponds to any of the maximum displayable number or less, the resolution corresponding to the maximum displayable number corresponding to any of the maximum displayable number or less is determined from the table. A resolution determination means for determining whether or not the read resolution matches the resolution of the display device;
When it is determined that the read resolution and the resolution of the display device match, the thumbnail image is displayed at the resolution at the time of the match and within the range of the maximum displayable number corresponding to the resolution. First display control means for displaying on the display device;
Resolution changing means for changing the read resolution to the resolution of the display device when it is determined that the read resolution and the resolution of the display device do not match;
A second display control unit configured to change the number of thumbnail images within the range of the maximum displayable number corresponding to the changed resolution and to display the thumbnail images on the display device. An information reproducing apparatus comprising a controller.   The information reproducing apparatus according to claim 1, wherein the plurality of types of resolutions determined in the standard are at least resolution 1080i, resolution 720p, and resolution 480i.   The maximum number of thumbnail images that can be displayed at each resolution is at least the maximum number of visible thumbnail images at resolution 1080i, the maximum number of visible thumbnail images at resolution 720p, and the number of visible thumbnail images at resolution 480i. The information reproducing apparatus according to claim 1, wherein the number is the maximum number.

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