TW200828283A - Recording medium with an optical information and apratus and methods for forming, recording, reproducing and controlling reproduction of the recording medium - Google Patents

Abstract

A recording medium, such as a high-density and/or read-only recording medium, such as BD-ROM, which includes an identification information, which can identify whether optional information, such as copy protection information, is needed or not for the playback of contents stored on the recording medium, and to methods and apparatuses for forming, recording, and reproducing data on the recording medium.

Description

200828283

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BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a recording medium, such as a BD-ROM (Blu-ray CD-ROM), which includes an identification information, such as copy protection, which can indicate information, and is used to form, record, A device and a plurality of methods for copying, controlling, and controlling the recording medium.

[Prior Art] Recently, high-density optical discs, a rewritable Blu-ray Disc (BD-RE), have been rapidly developed, and a large amount of high-quality video and audio information can be recorded thereon. Once the BD-RE specification is established, products using this new type of optical disc can be marketed in the short term. As illustrated in FIG. 1, a BD-RE has an inner hole, a clamping area, a transition area, a BCA (Burst Cutting Area) area, and Lead-in area, which is sequentially discharged in the direction of radioactivity, J. A data area and a lead-out area are respectively located at the center of the optical disc and the outermost loop. The lead-in area is divided into a first protected area (Guard 1), a PIC (Permanent Information & Control Data) area, a second protected area (Guard 2), and a second information area (Info 2). , OPC (Optimum Power Calibration) area and more. The first protection area and the PIC area are pre-recorded areas, and the new data can be rewritten to correspond to the lead-in area, the data area, and the lead-out area of the rewritable area. The general information that must be permanently saved on a disc can be recorded in the pic area 200828283. The PIC area can be encoded in a wobbled groove using the HFM (High Frequency Modulation) method. The HFM trench is modulated in a radioactive direction with a higher bandwidth signal to produce a data channel where sufficient capacity and data rate can be utilized to replicate the information. As shown in Figure 2, the bi-phase modulation can be used to encode the data into the waveform slot and thus recordable. In this modulation method, when the value of a bit is 〇, in the bit list

The beginning of the bit is represented by a transition; when the value of a bit is "," it is represented by a transition at the beginning and in the middle of the bit unit. As shown in Fig. 2, when the modulated bit is recorded on the optical disc, it deviates from the average center line of the groove. The length of each bit unit should be 36T, and τ is thicker than the length of one of the channel bits in the rewritable data area. At the same time as the development of BD-RE, a corresponding CD-ROM is also developed (hereinafter referred to as Xiao Xiao as shown in Figure 3, BD.ROM ^ & - a^ ^ ^ ^ ^ > fm ^ Λ and the edge area. When the main data of the j/video (A/V) stream is recorded in a negative material area of a message, the J spear can be used when the door is closed. Copying with a hard copy protection information (CPI) to prevent unauthorized copying. The various disc information (DI) of the disc, such as the type of one disc, is recorded in the information area. Recorded in the data ... 昧 PIC £. When the encryption of the main capital f cm / can also be used to decrypt the copy protection (CPI) in the PIC area. When the broadcast - recording media CD device according to the person For discs, for the initial servo operation of 200828283, the disc device will detect the copy protection information (CPI) recorded in the Pic area. If the main data recorded in a pre-recorded data area is encrypted, the copy protection information will be used. The master data is decrypted and output.

Even if the content recorded in the data area of a BD-ROM is not encrypted, the copy protection information is not recorded in the PIC area, and the optical disc device performing the initial servo operation can perform a series of operations, assuming that the content is encrypted, The copy protection information in the PIC area is detected. Such preliminary work may result in delays in the actual data playback. At the same time, if any information is recorded on the rewritable optical disc, BD-RE, or BD-WO, which is a recordable optical disc, and the copying of the data is protected, it will be difficult to copy the data. In addition, if the copy protection information is not detected, it is impossible to distinguish whether the optical disc is an illegal medium, and thus the copy protection information is not copied from the beginning; or the optical disc is a legal and freely copyable medium, so there is no copy protection. News. SUMMARY OF THE INVENTION In an exemplary embodiment, the present invention is directed to a recording medium, such as a high density and/or read only recording medium, such as a BD-ROM, that includes an indication that can identify whether a selective message is needed. For example, copy protection information to play content stored on the green media, and methods and devices for forming, recording, and copying data on the recording medium. In an exemplary embodiment, the present invention is directed to a recording medium, such as a high density and/or read only recording medium, such as a BD-ROM, wherein 7 200828283 includes information in a particular area that may indicate When copying the recorded content, a selective message appears, such as copy protection information, and methods and devices for forming, recording, and copying the material on the recording medium.

In an exemplary embodiment, the present invention is directed to a green media, such as a high density and/or read only recording medium, such as a BD-ROM, that includes information regarding the occurrence of a selective message, such as in a disc information. Copy protection information, and methods and apparatus for forming, recording, and copying material on a recording medium. In an exemplary embodiment, the present invention is directed to a recording medium, such as a high density and/or read only recording medium, such as a BD-ROM, that includes information regarding the occurrence of a selective message, such as copy protection information. As a header information for copying protection information, and methods and devices for forming, recording, and copying data on a recording medium. In an exemplary embodiment, the present invention is directed to a recording medium, such as a high density and/or read only recording medium, such as a BD-ROM, that includes an indication message, such as copy protection indication information, which can be used to determine A selective message, such as copy protection information, whether it appears, and whether decoding is necessary, and methods and apparatus for forming, recording, and copying material on the recording medium. In an exemplary embodiment, the present invention relates to a recording medium, such as a high-density and/or read-only recording medium, such as a BD-ROM, which includes an identification information, such as a copy of a P-protection indicator. Can be used to determine a selective message, such as copy protection information, whether it appears, and whether 200828283 must be decoded, regardless of whether the recorded content is encoded, will start directly playing its content, and used to form, record, and copy Method and equipment for recording information on the media.

In an exemplary embodiment, the present invention is directed to a recording medium, such as a high density and/or read only recording medium, such as a BD-ROM, including an information area, the information area including a first area for Recording data; a second area, which is used to control the recording or copying of recorded assets when selective information is present; and a third area for information that identifies the presence or absence of selective information, of which The second region and/or the third region are recorded in a wobbled pre-pit pattern in an area of the recording medium, and used to form, record, and copy data on the recording medium. Methods and equipment. In an exemplary embodiment, the present invention is directed to a method for copying material recorded on a recording medium, such as a high density and/or read only recording medium, such as a BD-ROM, including when selective information is present. The step of utilizing the selective information; controlling the greening or copying of the recorded data; and/or information identifying the presence or absence of the selective information; thereby reproducing the data based on the identifying information and/or the optical information, wherein The selective information and/or identification information is recorded in a region of the recording medium in the form of a pre-pit of the waveform. In an exemplary embodiment, the present invention is directed to a method for reproducing data recorded on a recording medium, such as a high density and 7 or read only recording medium, such as a BD-ROM, including when selective information is present. The information can be selectively recorded; the record or complex of the recorded data is controlled

200828283; and recording information identifying whether the selective information is present or not, the selective information and/or identification information being recorded in a region of the recording medium by a pre-pit of the waveform. In an exemplary embodiment, the present invention relates to a device that can be used to copy material recorded on a recording medium, such as a high-density I or read-only recording medium, such as a BD-ROM, wherein when selective information is implemented, The device may utilize the information; control the copying of the recorded data; and/or may identify whether the information has selective information; and • copy the data according to the selective information and/or identification information, wherein the information is And/or the identification information is recorded in an area of the recording medium in the form of pre-pits of the waveform. [Embodiment] A high-density read-only recording medium according to an exemplary embodiment of the present invention, and an exemplary apparatus and method for copying, recording, and copying protection information may be described in detail with reference to the accompanying drawings. Body embodiment. As described above with reference to Fig. 3, in accordance with an exemplary embodiment of the present invention, a Blu-ray Disc Readable Disc (BD-ROM) has a disc including an inner zone, a sweet spot, a transition zone, an information zone, and an edge zone. As shown in Figure 4, the general protection information corresponding to a disc and the encrypted master data recorded in the data area can be used to decrypt the copy protection information required for the A/V data stream. In the PIC area in the configuration information area. Where the I, / appears or the root is selected in the discussion of the shape of the specific structure of the packet I, as in the 10 200828283 when the master data is recorded in the data area and is not encrypted, does not need The copy protection information is specifically recorded in the PIC area. Therefore, in the information of the disc recorded in the PIC area, a flag may be included, which may indicate whether the copy protection information is green in the PIC area. The flag (CPI_rec_Flag) indicates the presence of copy protection information and its record size is - a byte. -* . ' , · .. As shown in Figure 5, West?番. Configure a group to record a flag. This flag can be used to copy protection information that is not reserved in the & At the same time, the optical discs in the PIC area can be made multiple times. In the multiple spots in the PIC area, you can only record in the first disc information in the summer after the summer.仄 仄 as shown in Fig. 6 沾 极 ^ ^: can indicate whether to record the copy protection information flag recorded in another area also

For example, b c A (burst cutting area) is arranged in one layer of the PIC area, and the protection information of the goods is recorded in the PIC area. You can copy the protection funds ~ this ice, and the flag indicating its appearance, code and 5 have been recorded as waveform pits, and you i ^ ^ is not recorded as a linear pit as in the general case. For this purpose, such as i, ▼, in the necessary number of track sections, the pits are formed in a waveform form (or in a zigzag, <form form). At the same time, t β can be encoded and recorded in the p I c region by wavy pits, washes, 疋 疋 linear pits, and/or both. On the other hand, it can be selectively recorded in other areas outside the PIC area. The HFM trench waveform method, such as BD-RE, is used to perform the recording. Copy Protection Information Packet > Λ Include a major value that can be used to encrypt the master data that will be recorded on the 200828283 data area. ·

Fig. 7 illustrates an embodiment in which the bi-phase modulation is encoded in the form of a waveform pit, and thus the data can be measured. In Figure 7, the f〇 10 Γ value is encoded in a two-phase modulation, such as a double-loose modulated HFM trench, and a waveform form using waveform pits. The waveform pit of the recording embodiment in Fig. 7 contains at least 36T (including marks and spaces) in which six 3T signals (markers) constitute a value of one bit. In this embodiment, the left and right transitions of one of the six pit sequences are indicated as 'Γ, and one of the six pits is labeled as W, provided in the opposite direction. As shown in Fig. 7, the bi-phase modulation structure here is different from the structure illustrated in Fig. 2. That is to say, in the method of FIG. 2, when the value of the bit is 0, it is represented by a transition at the beginning of the bit unit; and when the value of the bit is 1, the start of the bit unit. It is represented by a conversion at the center and in the middle. On the other hand, in the method of FIG. 7, when the value of the one-bit element is 〇, it is represented by a transition between the beginning of the lowest point and the highest point; and when the value of the one-bit element is 1, the conversion is performed by The opposite direction is for it. A combination of bits composed of data is used to detect information recorded in the form of waveform pits. The waveform pits can be copy protection information, i.e., the main data of the master data recorded in the data area of the recording medium as shown in Figs. 4A to 4F can be decrypted. That is, the waveform pit data can be copied or detected only when the two-phase modulation data is detected or normally copied. At the same time, the master data can only be copied or decrypted when the two-phase modulation data that is normally detected or copied is used to copy or detect the waveform pit data used for the copy protection. 12 200828283 When recording information in a pit, it is not necessary to repeat the same pit 'but may record different pits (2T-8T) modulated according to the input information. However, in this example, one The position of the pit sequence (i.e., the 'stage) is also shifted by about 18 , to encode the data into a waveform of the waveform pit. When the reflected light reflected from the waveform pit is recorded in such an open type, a photoelectric conversion is performed by the four-quadrant light receiving element 13-1.

As disclosed in FIG. 7, the photoelectrically converted electronic signals (Ea, Eb, EC, Ed) are amplified by a current for use in conventional push-pull segment control. More specifically, the amplifier 10, And 11 to the signal of the left and right of the track (Ea + Eb, Ec + Ed), and with a differential amplifier 12. - - Output the differential signal of the left and right signals ((Ea + Eb) - ( Ec + Ed)), when the differential signal 501 is converted into a binary signal according to its intensity higher than or | a reference value, data encoded in the waveform of the waveform pit can be obtained. . .; . - . ' -. Because the signal from the waveform form of the waveform pit cannot be externally obtained', even if the data played from a BD-R Ο 复制 is copied to the recording medium other than the b D - R Ο Μ The copied material is still not played. -· . ' If the data is not recorded in the form of a waveform, but the data is recorded in Μ according to a specially agreed format between the legally authorized manufacturers, the unauthorized manufacturer copies the BD-ROM. It may be more difficult. - · . . ' * Figure 8 is a simplified illustration of a disc device that can play back one of the recording media on a disc. The device includes an optical read/write n; VDP (Vedi0 Disc Play) system 12, executable signal processing 13 200828283 $Disc device can be based on servo control as with Fig. 9; and a D/A conversion 13. Do not record the copy protection information and perform the description of the playback process. The VDP cable of the optical disc device is 12 detectable and check a flag (CPI-rec_Flag), the flag indicating whether the Β and the 将 will be recorded in the pIC area, or encoded in a placement The turbidity of the BD-ROM, such as the sergeant

The copy protection information of the disc information in the crater is recorded (su); otherwise, the flag (s 1!) recorded in the BCA area of a BD-ROM can be prepared, and it is determined whether or not Copy protection information for recording. If the flag is detected, its value is checked (S13). If the value indicates that the copy protection message has been recorded, the v D p system of the disc device! 2 执行 will execute (S14) - the job to detect the copy protection information recorded in the pic area or encoded in the waveform pit; thereafter, by using the copy protection information, a series of data play operations are performed. To decrypt and play the record in... . . . . :. Encrypted data in this data area (S1 5). When the value of the flag indicates that the copy protection information does not appear, or the flag indicates that the copy protection information is not detected > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Copying the anti-., - - . information to the non-essential job, and directly executing the job, reading the content recorded in the data area. As shown in the exemplary embodiment of FIG. 5, a flag indicating whether or not the copy protection information is recorded may be recorded in the PIC area together with the copy protection information, except that it is included and recorded in the light butterfly information. . Figure 10 is an exemplary embodiment illustrating such an arrangement. As shown in the exemplary embodiment of FIG. 10, the flag (CPI- rec_Flag) appearing on the copy protection information 14 200828283 may be recorded as the header information of the copy protection information overview. It can indicate whether there is a flag for recording copy protection information, and its record size can be a one-tuple. When the value of the flag is '0000 〇〇〇〇, the flag indicates that the copy protection information has not been recorded (in this case, a subsequent copy protection information cup may be filled in, 00*). When the value of the flag is 〇〇〇〇111Γ, the flag indicates that the copy protection information is recorded. In other exemplary embodiments, when the copy protection information has a flag indicating whether to copy the copy protection information into a header information, the copy protection information may be recorded in a specific recording area outside the PIC area, for example, * - - - · - · • * -. · ' 1 · - · ·. BCA area. The copy protection information is marked with a flag indicating whether or not to record the copy protection information. - - - - When recording, the copy protection information can be recorded in one of the disc information stored in the PIC area. Or, it can be recorded as a structure independent of the information of the disc. . . . . . . . . . . . . . . . . . . . . . . . Figure 11 illustrates an exemplary embodiment in which the copy protection information is recorded in the pic area independently of the information recorded on the disc. , . . ' . . - . . . . . In the exemplary embodiment of Fig. 11, it may indicate whether there is a record. · . . . :. · Copying the banner of protection information Appears in the header of the copy protection information. When the value of the flag is 〇〇〇〇〇〇〇〇, the flag indicates that the copy protection information is not recorded (in this example, a subsequent copy protection information column is filled with 00) . When the value of the flag is 0 0 0 0 1 1 1 1, the flag indicates that the copy protection information has been recorded. As described above, according to an exemplary embodiment of the present invention, a high 15 200828283 poor degree only w recorded media, and a format that can be used to record copy protection information / play the media, θ ' unless its content is encrypted, It can directly play the contents stored in the -· ▲All's continued CD, and when the content is eaten by the family, the decryption information must be read from the CD to make it play correctly. In addition, the information that can decode the encrypted data is recorded in the form of an anti-copying wave, so that illegal copying of the contents stored in a high-density CD-ROM is prohibited. The description of the exemplary embodiments of the present invention is intended to be illustrative, and thus the invention may be modified, modified, substituted, or added, and still The spirit and scope of the appended patent application scope. BRIEF DESCRIPTION OF THE DRAWINGS [0009] The accompanying drawings, which are set forth in the claims In the illustration: Figure 1 illustrates the optical structure of a conventional rewritable Blu-ray disc (bd_re); Figure 2 illustrates the frequency modulation (HFM) trench formed in the PIC region of a rewritable blue bee; The figure illustrates a specific embodiment of the present invention, in which a video-only optical disc (BD - R Ο Μ ) is placed in a smart mother-area; Figure 4 illustrates an exemplary implementation. The second time ah 'the corruption of the copy of the anti-information is recorded in an exemplary concrete 16 according to the invention of Tai Yi Kang.

200828283 One example of a PIC area of a Blu-ray disc; Figure 5 illustrates a field of information in a high-density Blu-ray disc, wherein an exemplary embodiment of the invention has a flag to indicate the presence of copy protection information; Figure 6 illustrates An exemplary embodiment, an information of a BCA area in a Blu-ray disc, copy protection information; Figure 7 illustrates a process of data restoration according to an exemplary waveform pit form code according to the present invention. Simplified Structure of an Optical Disc Device An Exemplary Embodiment of the Invention Plays a High Density FIG. 9 is a flow chart illustrating a process of playing a high-density Blu-ray disc according to the present embodiment; FIGS. 10 and 11 respectively illustrate the present invention. For example, the information recorded on a Blu-ray disc can protect information. [Simplified Description of Component Representation Symbol] 10 Amplifier 11 Amplifier 12 Differential Amplifier Light-Receiving Element 14 Light-Receiving Element 15 The optical disk body recorded and managed by the light-receiving element includes an embodiment in which it is recorded in accordance with the present indication whether or not the specific embodiment is recorded. , the device can be based on the present Blu-ray Disc; an exemplary specific and exemplary implementation of the instructions to indicate whether to record the copy 17 200828283 16 light receiving element 111 optical reading and writing 112 audio and video disc playback system 113 D / A converter 501 differential signal S10 placed on the disc

511 Try to detect if CPI-rec_Flag 512 detects a flag? Is the S 13 flag turned on?

S14 Detect CPI S 1 5 Decrypt the main data with the detected CPI — ., . . . ^ S20 Copy the main data immediately whether it is encrypted or not

18

Claims (1)

200828283 An information area 'the information area includes a first area for one of the main poor materials and a second area for controlling information, and the control information system is required to encrypt and decrypt the main data, and the control information is pressed The wobbled pattern is encoded, thereby passing a push-pull method And being detected, wherein the control information is determined by the one-way ".. ; - - _ - Bit modulation method record. 2. The storage medium of claim 1, wherein the control information is recorded in a lead-in area of the information area of the storage medium. 3. The storage medium of claim 2, wherein the control information - ' . . ' is recorded in a permanent information and control ( Pic ) data area defined in the lead-in area of the Blu-ray disc. 4. The storage medium of claim 3, wherein when the bit 1 is represented by a transition from high to low, the bit is represented by a low to high transition. . 5. The storage medium of claim 1, wherein the control information is recorded in a permanent information and control defined in the area of the information 19 200828283 of the Blu-ray Disc (卞1〇) As part of the disc information or independent of the disc information, the disc information is recorded as .I _ - and / or required to reproduce the main data. 6. Storage as described in claim 1 The media, wherein the information area - ^ . - _ - further comprises a third area for storing identification information to identify the presence or absence of control information, the identification information being modulated by the two-phase waveform 7. A method for reproducing data from a recording medium, comprising: a debt testing step of encrypting and/or decrypting control information required for a primary material by using a push-pull method detection, The control information is modulated by the two-phase modulation in the form of a waveform in a manner in a direction in a predetermined period of time, and in a manner of individually determining the bit 0 and the bit 1. (wobbled pattern) is encoded; and a decoding step is performed by a demodulation method to decode the control information to decrypt the main data. The method of claim 7, wherein the control information is recorded in a lead-in area of the information area of the recording medium; The guessing step reads the control information in the lead-in area. 9. The method of claim 8, wherein the control information system 20 200828283 is recorded in a permanent information and control (PIC) data area defined in the lead-in area of the Blu-ray disc; and the detecting step The control information in the PIC area is detected. 10. The method of claim 9, wherein the bit 1 is converted from low to high when represented by a high-to-low transition from ^·'.'. Expressed; and The decoding step decodes the bit _ _ _ . . . 0 and bit 1 by identifying the individual switching direction. Λ.- . . . . : -. 11 · The method of claim 7, wherein the control information is recorded in one of the Blu-ray Discs for permanent information and control (PIC) The part of the information area as part of the information on the disc or independent of the information on the disc, the disc information recorder records and/or reproduces the main information; and - . - . . which includes reading The step is to read the control information as part of the disc information or as part of the disc information. 12. The method of claim 7, wherein the debt testing step comprises the step of identifying the presence or absence of the control information based on the identification information, the identification information being encoded in a waveform form by bi-phase modulation. 13. A device for reproducing data from a recording medium, comprising: 21 200828283 a signal detector for encrypting and/or decrypting by using a push-pull circuit debt test - main data Required control information, which is encoded by a wobbled pattern by a bi-phase modulation method in a manner of individually determining bit 0 and bit 1 based on a transition in a direction within a predetermined period of time ; a signal processor coupled to the signal detector for decoding the control information by a demodulation method and decrypting the main data by using the control information; and a controller coupled to The signal detector and the signal processing.. _ .... .. ' . , . . . . , - to control the debt information of the control information, and to control the decoding of the control information and the main data Decrypt. 1 4 · If the device of claim 13 is applied, the control information is recorded in a lead-in area of the information area of the recording medium; and · ' - . circle. The controller controls the signal detection To detect control information in the lead-in area. 15. The device of claim 14, wherein the control information is recorded in a permanent information and control (PIC) data area defined in the Blu-ray disc; and wherein the controller controls the signal detector Measure the control information of the PIC area. 22 200828283 16. The apparatus of claim 15, wherein when the bit 1 is represented by a transition from high to low, the bit 0 is represented by a transition from low to high; and, - The signal processor decodes the bit 0 and the bit 1 by identifying the individual switching direction. 17. The device of claim 13 wherein the control information is recorded as part of or independent of the information in the permanent information and control (PIC) data area of the Blu-ray Disc (Blu_ray: Disc). . , _ _ — circle · - _____ - * In the CD-ROM information section, the disc information is recorded and / or reproduced by the main .. . ' . - _ . . - - For the information required. And • • . . - . - : - - This allows the signal detector to measure the control information as part of the disc information or as part of the disc information. * . . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - The presence or absence of the identification information is encoded by the two-phase modulation in the form of a waveform. twenty three