WO2007046494A1 - Support, dispositif et procede d’enregistrement d’informations, dispositif et procede de reproduction d’informations et programme informatique - Google Patents

Support, dispositif et procede d’enregistrement d’informations, dispositif et procede de reproduction d’informations et programme informatique Download PDF

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Publication number
WO2007046494A1
WO2007046494A1 PCT/JP2006/320923 JP2006320923W WO2007046494A1 WO 2007046494 A1 WO2007046494 A1 WO 2007046494A1 JP 2006320923 W JP2006320923 W JP 2006320923W WO 2007046494 A1 WO2007046494 A1 WO 2007046494A1
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WIPO (PCT)
Prior art keywords
information
information recording
recording
area
recording medium
Prior art date
Application number
PCT/JP2006/320923
Other languages
English (en)
Japanese (ja)
Inventor
Shinji Suzuki
Tsuyoshi Hasebe
Tsuyoshi Namiki
Masayoshi Yoshida
Kazuo Kuroda
Original Assignee
Pioneer Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corporation filed Critical Pioneer Corporation
Publication of WO2007046494A1 publication Critical patent/WO2007046494A1/fr

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/0079—Zoned data area, e.g. having different data structures or formats for the user data within data layer, Zone Constant Linear Velocity [ZCLV], Zone Constant Angular Velocity [ZCAV], carriers with RAM and ROM areas

Definitions

  • Information recording medium information recording apparatus and method, information reproducing apparatus and method, and computer program
  • the present invention relates to an information recording medium such as an optical disc that can be recorded and reproduced by irradiating laser light such as a DVD (Digital Versatile Disc), a BD (Blu-ray Disc), and a CD (Compact Disc).
  • the present invention also relates to a recording apparatus and method for the information recording medium, a reproducing apparatus and method, and a technical field of a computer program.
  • a conventional recording type information recording medium (recording type medium) is designed as follows. That is, in the recording-type information recording medium, first, for example, content such as movie content that permits free copying that does not require copyright protection, so-called copy-free content, for example, DVD— It is recorded based on the Video format and can be finalized. In addition, a recordable information recording medium that has been finalized can be played back while maintaining playback compatibility with a conventional player such as a DVD player.
  • the DVD-Video format is copyright-protected by an encryption system such as CSS (Content Scramble System).
  • CSS Content Scramble System
  • the content is protected by a playback restriction system for protecting the copyright of the content held by the player. Is not allowed, and content playback is uniformly prohibited.
  • content whose copyright is protected by CSS is, in principle, recorded in advance only on a read-only information recording medium such as a DVD-ROM. We recognize that. Therefore, in the conventional player, if content protected by CSS is recorded on a recordable information recording medium, illegal content that violates the DVD—Video format is recorded.
  • wobble signal a wobble power signal peculiar to the recordable information recording medium
  • encryption and decryption of content are performed by the following procedure.
  • content such as video and audio is first MPEG-coded by an authoring company, for example.
  • the content encoded with MPEG code is encrypted by the disc manufacturer with the title key (that is, encryption key 1), and the encrypted content is, for example, information such as a DVD Video disc. It is recorded on the recording medium (see the diagonally right shaded area in Fig. 16).
  • This title key is encrypted by a disc key (ie, encryption key 2) by a copyright manager (eg, DVD CCA), and is recorded on the information recording medium as the encryption title key.
  • this disc key is also encrypted by the copyright manager with the master key set (that is, encryption key 3), and is stored on the information recording medium as the encryption key key set. To be recorded.
  • a general information recording / reproducing apparatus such as a player, for example, first decrypts an encrypted disk key set recorded on an information recording medium such as a DVD Video disk (ie, Decrypt 1) to generate a disk key.
  • the title key is generated by decrypting the encrypted title key (ie, decryption 2) using the generated disc key.
  • decryption 3 it is possible to decrypt the encrypted content (that is, decryption 3) using the generated title key, generate content such as video and audio, and reproduce the content.
  • DVD video content such as a DVD-RZRW
  • a recording-type information recording medium is recorded and sold in advance, and encrypted via a network
  • a distribution system that appropriately distributes “encrypted content” is disclosed.
  • encrypted information applied to a read-only media such as a conventional DVD-ROM on an information recording medium having the same physical structure as that of a conventional DVD-RZRW or other recordable information recording medium.
  • a control area such as the control data zone before sales.
  • Patent Document 1 Japanese Patent Laid-Open No. 2001-307427
  • Patent Document 2 Japanese Patent Laid-Open No. 2001-357001
  • Patent Document 3 Japanese Unexamined Patent Publication No. 2000-331412
  • Non-Patent Document 1 “DVD Content Protection” Toshiba Review Vol.58, No6 (2003)
  • the present invention has been made in view of, for example, the conventional problems described above.
  • a recording-type information recording medium for example, protection of copyright of recorded data such as content, and maintenance of reproduction compatibility are achieved.
  • An information recording medium, an information recording apparatus and method, an information reproducing apparatus and method, and a computer program for causing a computer to function as such an information recording apparatus and information reproducing apparatus are provided. And the issue.
  • the information recording medium of the present invention holds and detects clock information (WBL1) and address information (LPP1) in order to record a part of the recording data.
  • WBL1 clock information
  • LPP1 address information
  • the first area (Formtl) with one wobble preformatted and the other part of the recorded data (i) the second wobble that cannot be detected is preformatted, or (ii) the straight group And a second region that is preformatted.
  • first, in the first area in order to record a part of the recording data, for example, clock information based on wobbling of the recording track, and, for example, land
  • the first wobble that holds pre-pit address information and can be detected is pre-formatted.
  • a determination area for determining whether or not power to permit playback of recorded data is first accessed.
  • the (region) is included in the second region, it is possible to enjoy the following effects. That is, since the second wobble preformatted in the second area cannot be detected by a conventional player (general information recording / reproducing apparatus), the general information recording / reproducing apparatus performs at least the main process in the reproducing process in the determination area.
  • the information recording medium of the invention cannot be distinguished from a general information recording medium such as a DVD-ROM such as a DVD-ROM.
  • the conventional reproducing apparatus can perform the reproducing process on the information recording medium of the present invention in the same manner as a general reproduction-only information recording medium.
  • a conventional player (general information recording / reproducing device) cannot detect a wobble in the second area where title information of DVD content is recorded, or (ii) a straight group Is identified as preformatted. Therefore, a general information recording / reproducing apparatus is generally similar to a reproduction-only information recording medium that is not distinguished from a reproduction-only information recording medium such as a DVD-ROM. Playback resumption processing (resume operation) can be performed on the recording medium.
  • the “reproduction resumption process (resume process)” is an information reproduction apparatus such as a DVD player, for example, during the reproduction process of the information recording medium.
  • this means a process of replaying recorded data such as contents being reproduced continuously from the middle of reproduction.
  • this information reproducing apparatus first (1) addresses indicating the reproduction position of the recorded data reproduced at the moment when the information recording medium is taken out during reproduction, or (two ) Specify the recorded data that is being played back, such as the title information of the recorded information and the data string indicating the predetermined position at the beginning of one area of the recorded information.
  • the possible specific information is stored in a storage means such as an internal memory.
  • the information reproducing apparatus (i) whether or not the wobble is detected in an area where specific information such as title information is recorded.
  • the information reproducing device (i) when specific information is recorded and no wobble is detected in the area, (ii) when the straight group is identified as preformatted Or (iii) For example, when specific information such as title information can be reproduced, reproduction can be resumed from the vicinity of the address indicating the reproduction position of the recorded data stored.
  • the “special program” is pre-recorded in the second area, for example, a program that reproduces recorded data such as DVD content while decrypting it based on encryption information such as a disc key.
  • This special program may be pre-recorded in the second area, or recorded in a recording area other than the second area!
  • the general information recording / reproducing apparatus identifies (i) the wobble cannot be detected in the second area, or (ii) identifies that the straight group is preformatted. It is impossible to rewrite the encryption key information pre-recorded in the. Therefore, it is possible to realize copyright protection of the information recording medium.
  • the recording area other than the second area since the first wobble described above can be detected, general recording processing can be performed.
  • the information recording apparatus described later can acquire clock information and address information, for example, at a recording start position existing in the first area.
  • the information recording apparatus for example, based on the disk-at-once recording method, which is a recording method asynchronous to the clock information and the address information, It is also possible to achieve more accurate recording
  • the amplitude of the second wobble is close to zero.
  • the amplitude of the second wobble is a predetermined amplitude, or (ii) the frequency of the second wobble is in a predetermined frequency band. included.
  • the amplitude of the second wobble is a predetermined amplitude that cannot be detected by, for example, a conventional player (general information recording / reproducing device).
  • the frequency of the second wobble is included in a predetermined frequency band that cannot be detected by a conventional player, for example.
  • the second wobble preformatted in the second area can be hardly or completely detected by the conventional player.
  • the predetermined frequency band is configured to be able to be determined based on a resolution of a band pass filter included in an information reproducing apparatus that reproduces the information recording medium. Even so.
  • the second area is first accessed when the recorded data is reproduced, and it is determined whether or not the reproduction of the recorded data is permitted. It includes a judgment area (playback setting area) to be set.
  • a determination area (a so-called reproduction setting area) for determining whether or not the first access and reproduction of the recorded data are permitted is performed. Since it is included in the second area, it is possible to enjoy the following effects. That is, since the second wobble preformatted in the second area cannot be detected by a conventional player (general information recording / reproducing apparatus), the general information recording / reproducing apparatus performs reproduction processing at least in the determination area.
  • the information recording medium of the present invention cannot be distinguished from a general reproduction-only information recording medium such as a DVD-ROM.
  • the conventional reproducing apparatus can perform the reproducing process on the information recording medium of the present invention in the same manner as a general reproduction-only information recording medium.
  • a part of the second area is included in at least a user data area.
  • a conventional player (general information recording / reproducing device) cannot detect (i) a wobble in the second area where title information of DVD content is recorded, or (ii) a straight group, for example. Is identified as pre-formatted. Therefore, a general information recording / reproducing apparatus does not distinguish from a reproduction-only information recording medium such as a DVD-ROM, for example, and generally corresponds to the information-recording medium of the present invention. Thus, it is possible to perform a playback restart process (resume operation).
  • a general information recording / reproducing apparatus when a part of the second area is included in the user data area, encryption key information such as a disc key of the DVD content is pre-recorded.
  • a general information recording / reproducing apparatus for example, (i) cannot detect a wobble in a second area where encryption key information such as a disc key is pre-recorded, or (ii) a straight group is pre-recorded. Identify it as formatted. Therefore, a general information recording / reproducing apparatus does not distinguish from a reproduction-only information recording medium such as a DVD-ROM, and is similar to the information recording medium of the present invention in the same manner as the reproduction-only information recording medium. It is possible to execute the aforementioned special program such as an application corresponding to a reproduction-only information recording medium.
  • the general information recording / reproducing apparatus identifies (i) the wobble cannot be detected in the second area, or (ii) the straight group is identified as being preformatted, It is impossible to rewrite the encryption key information pre-recorded in the. Therefore, it is possible to realize copyright protection of the information recording medium.
  • the recording area other than the second area since the first wobble described above can be detected, general recording processing can be performed.
  • At least a part of the second area included in the user data area is arranged on the inner periphery side of the user data area.
  • the first area is arranged on the inner circumference side, and the second area is arranged on the outer circumference side.
  • one of the first regions is arranged on the inner peripheral side, and (i-2) the other first region is on the outer peripheral side. (Ii) The second region is disposed between one of the first regions and the other first region.
  • a judgment area for determining whether or not the power to permit playback of the recorded data is first accessed. ) Can be more reliably included in the second region.
  • one and the other first area, and the one and the other second area are from one side to the other of the inner peripheral side and the outer peripheral side. (I) one first region, (ii) one second region, (iii) another first region, and (iv) another second region. Is done.
  • clock information and address information can be acquired by an information recording / reproducing apparatus to be described later, for example, at a recording start position existing in one first area.
  • the second wobble is not detected by the information recording / reproducing apparatus described later. Therefore, the recording end position is determined by the presence or absence of the second wobble. It is possible to identify.
  • the address information (LPP1) includes (i) position information relating to the position of the second area, or (ii) the second area. Includes identification information (flag) indicating whether or not.
  • the information recording / reproducing apparatus relates to (i) the position of the second area of the information recording medium to be recorded or reproduced based on the address information. Based on the position information or (ii) identification information indicating whether or not the second area is provided, it is possible to record or reproduce the information recording medium quickly and accurately.
  • the address information (LPP1) includes (i) information on a start address indicating a start position of the second area, and (ii 1) an end of the second area. Information on the end address indicating the position, or (ii 2) information on the data amount of the second area.
  • the information recording / reproducing apparatus in other words, (i) the start address of the second area of the information recording medium to be recorded or reproduced is based on the address information. (Ii 1) information on the end address of the second area, or (ii 2) information on the amount of data in the second area. Recording or playback is possible.
  • a management area for recording management information including the address information (LPP1) and capable of managing recording or reproduction of the information recording medium (RMD) is further provided.
  • the information recording / reproducing apparatus for example, (i) the position of the second area of the information recording medium to be recorded or reproduced based on the management information recorded in the management area. It is possible to quickly and accurately record or reproduce information on the information recording medium on the basis of the positional information on (ii) the identification information indicating whether or not the second area is provided.
  • the information recording medium is a write-once type or rewritable type information recording medium.
  • the information recording apparatus of the present invention will be described below.
  • An information recording apparatus for recording the recording data on a recording medium (including various aspects thereof), a recording means for recording the recording data, a reference clock generating means for generating a reference clock, and FG ( Spindle servo means (rotation control means) for controlling the rotation of the information recording medium based on a frequency generator), (i) the generated reference clock, and (ii) the recording based on the rotation control. Control means for controlling the recording means to record data.
  • the recording means under the control of the control means, the recording means
  • Recording data is recorded on the information recording medium based on (i) the reference clock generated by the reference clock generating means and (ii) the rotation control performed by the spindle servo means (so-called rotation control means). More specifically, for example, at the recording start position that exists in the first area, the information recording apparatus can acquire clock information and address information. More specifically, in the rotation control of the information recording medium in the second area, it is based on the position information indicating the position of the stepper constituting the FG (Frequency Generator) under the control of the control means. The frequency at FG is changed.
  • the linear velocity can be made constant by controlling the change in frequency in the FG under the control of the control means, the so-called pseudo CLV method (Constant Linear Velocity
  • a recording method based on the disc-at-once recording method can be realized.
  • the information recording apparatus After the information recording apparatus acquires the address information at the recording start position, the information recording apparatus, for example, based on the disk-at-once recording system, which is a recording system asynchronous to the clock information and the address information, is used. It is possible to realize highly accurate recording.
  • the information recording apparatus of the present invention can also adopt various aspects.
  • control means controls the recording means so as to record the recording data based on a disk-at-once recording method.
  • the information recording apparatus is a recording system that is asynchronous with respect to the clock information and the address information after acquiring the address information, for example, at the recording start position. Based on this, it is possible to achieve more accurate recording. is there.
  • the address information (LPP1) in the information recording medium includes start position information indicating a start position of the second area, and the start position information is Further comprising an acquisition means for acquiring, the control means from the start position indicated by the acquired start position information, (i) based on the generated reference clock, and (ii) based on the rotation control! /, Then, the recording means is controlled to record the recording data.
  • the information recording apparatus is configured based on the reference clock and the rotation control from the start position of the second area indicated by the start position information included in the address information, and the clock information, and Asynchronous recording processing for address information can be realized with higher accuracy.
  • the information recording apparatus further includes a detection means capable of detecting the first wobble, and the control means starts from a position where the first wobble is not detected by the detection means. Based on (i) the generated reference clock and (ii) V based on the rotation control, the recording means is controlled to record the recording data.
  • the information recording apparatus further performs a recording process that is based on the reference clock and the rotation control and is asynchronous with respect to the clock information and the address information from the position where the first wobble is not detected. It can be realized with high accuracy.
  • an information reproducing apparatus of the present invention is an information reproducing apparatus for reproducing the recording data from the above-described information recording medium of the present invention (including various aspects thereof).
  • the encryption key of the recorded data is acquired by the acquiring means.
  • the acquired darkness is The recorded data is reproduced by the reproducing means while the recorded data is decrypted based on the signal key.
  • the information recording medium of the present invention in which the copyright-protected content is recorded by an encryption system such as CSS can be reproduced by a conventional player.
  • the information reproducing apparatus of the present invention it is possible to perform reproduction processing on the information recording medium of the present invention while realizing both protection of content copyright and maintenance of reproduction compatibility. Become.
  • the information reproducing apparatus of the present invention can also adopt various aspects.
  • an information recording method of the present invention includes an information recording medium for recording the recording data on the above-described information recording medium of the present invention (including various aspects thereof).
  • An information recording method in the apparatus comprising: a reference clock generating process for generating a reference clock; a spindle servo process (rotation control process) for controlling the rotation of the information recording medium based on an FG (Frequency Generator) servo; (I) the generated reference clock, and (ii) a control step of controlling the recording means to record the recording data based on the rotation control.
  • the information recording method of the present invention can also adopt various aspects.
  • an information reproducing method of the present invention includes an information reproducing apparatus comprising reproducing means for reproducing the recorded data from the above-described information recording medium of the present invention (including various aspects thereof).
  • the information reproducing method of the present invention can also adopt various aspects.
  • a computer program for recording control of the present invention is a recording for controlling a computer provided in the above-described information recording apparatus of the present invention (including various aspects thereof).
  • a computer program for control which causes the computer to function as at least part of the recording unit, the reference clock generation unit, the spindle servo unit, and the control unit.
  • a computer program for reproduction control according to the present invention is a computer program for reproduction control for controlling a computer provided with the above-described information reproduction apparatus of the present invention (including various aspects thereof).
  • the computer is caused to function as at least a part of the acquisition unit, the decoding unit, the reproduction unit, and the control unit.
  • the computer program of the present invention if the computer program is read from a recording medium such as a ROM, a CD-ROM, a DVD-ROM, and a hard disk that stores the computer program and then executed by the computer, Alternatively, if the computer program is downloaded to a computer via communication means and then executed, the above-described information recording apparatus and information reproducing apparatus of the present invention can be realized relatively easily.
  • each computer program of the present invention can also adopt various aspects.
  • a first computer program product in a computer-readable medium is obtained by a computer provided with the above-described information recording apparatus of the present invention (including various aspects thereof).
  • An executable program instruction is clearly embodied and the composition is The data is made to function as at least a part of the recording means, the reference clock generating means, the spindle servo means, and the control means.
  • a second computer program product in a computer-readable medium is obtained by a computer provided with the above-described information reproducing apparatus of the present invention (including various aspects thereof).
  • Executable program instructions are clearly embodied, and the converter is caused to function as at least a part of the acquisition unit, the decoding unit, the reproduction unit, and the control unit.
  • the computer program product is stored in a computer from a recording medium such as a ROM, CD-ROM, DVD-ROM, or hard disk that stores the computer program product. If read, or if the computer program product, which is a transmission wave, for example, is downloaded to a computer via communication means, the above-described information recording apparatus or information reproducing apparatus of the present invention can be implemented relatively easily. More specifically, the computer program product may also be configured with computer-readable code (or computer-readable instructions) that functions as the information recording apparatus or information reproducing apparatus of the present invention described above.
  • the first area and the second area are provided.
  • content protected by a copyright system such as CSS is supplied to general users via a recording-type information recording medium, and the supplied content is supplied to a conventional player.
  • Reproduction processing can be performed. Therefore, according to the information recording medium of the present invention, it is possible to realize both the protection of the copyright of the content and the maintenance of reproduction compatibility.
  • the information recording apparatus described later can acquire clock information and address information, for example, at a recording start position existing in the first area.
  • the information recording apparatus is more sophisticated based on the disk-at-once recording method, which is a recording method asynchronous to the clock information and the address information, for example. It is also possible to achieve accurate recording.
  • the recording means, the reference clock generator A stage and a process, a spindle servo means and a process, and a control means and a process are provided.
  • the information recording apparatus is more accurate based on the disc-at-once recording method, which is a recording method asynchronous to the clock information and the address information. Recording can be realized.
  • the information reproducing apparatus and method includes an obtaining unit and step, a decoding unit and step, a reproducing unit, and a control unit and step.
  • the information recording medium of the present invention on which the copyright-protected content is recorded by an encryption system such as CSS can be played back by a conventional player. Therefore, according to the information reproducing apparatus of the present invention, it is possible to perform reproduction processing on the information recording medium of the present invention while realizing both protection of content copyright and maintenance of reproduction compatibility. It becomes possible.
  • the above-described information recording apparatus is provided at the recording start position. After obtaining the address information, for example, it is possible to realize more accurate recording based on the disk-at-once recording method, which is a recording method asynchronous to the clock information and the address information.
  • the above-described information reproducing apparatus causes the information reproducing medium of the present invention on which the copyright-protected content is recorded by an encryption system such as CSS to be reproduced by a conventional reproducing apparatus. This is possible.
  • FIG. 1 is a schematic plan view showing a basic structure of an optical disc having a plurality of recording areas according to an embodiment of an information recording medium of the present invention, and a radial direction associated with the schematic plan view.
  • FIG. 2 is a schematic conceptual diagram of a recording area structure in a direction.
  • FIG. 2 is a partially enlarged perspective view of a recording surface of an optical disc according to an embodiment of the information recording medium of the present invention.
  • FIG. 3 is a conceptual graph showing the relationship between a recording area of an optical disc according to an embodiment of the information recording medium of the present invention and an address that can specify the position of the recording area.
  • FIG. 4 shows a recording area in an optical disc according to an embodiment of the information recording medium of the present invention
  • FIG. 5 is a schematic diagram schematically showing clock information preformatted corresponding to a recording area and a detailed configuration of address information.
  • FIG. 5 is a schematic diagram schematically showing a detailed configuration of clock information and address information to be preformatted in the Formatl recording area constituting one specific example of the first area of the present invention (FIG. 5 (a)).
  • various information is pre-formatted in the format 2 (straight group) recording area, which is a specific example of the second area of the present invention. It is a schematic diagram (Fig. 5 (b)).
  • FIG. 8 is a block diagram showing an overall configuration of an information recording / reproducing apparatus for recording / reproducing the information recording medium of the present invention.
  • FIG. 9 is a flowchart showing recording data recording or reproduction processing by the information recording / reproducing apparatus in the embodiment of the information recording apparatus of the present invention.
  • FIG. 10 One and other flowcharts (FIG. 10 (a) and FIG. 10 (b)) showing the recording process of the information recording medium of the new standard by the information recording / reproducing apparatus according to the embodiment of the information recording apparatus of the present invention. ).
  • FIG. 11 is a flowchart showing recording data reproduction processing by the information recording / reproducing apparatus in the embodiment of the information recording apparatus of the present invention.
  • FIG. 12 is a schematic diagram schematically showing a detailed configuration of a recording area, clock information preformatted corresponding to the recording area, and address information in an optical disc according to a comparative example.
  • FIG. 13 shows details of a recording area in an optical disc according to another embodiment of the information recording medium of the present invention, clock information pre-formatted corresponding to the recording area, and address information. It is the schematic diagram which showed the fine structure typically.
  • FIG. 14 is a schematic diagram schematically showing a detailed configuration of clock information and address information to be pre-formatted in another embodiment of the second area of the present invention, ie, a Format 2 recording area.
  • FIG. 15 is a table showing information (FIG. 15 (a) and FIG. 15 (b)).
  • FIG. 16 A block diagram schematically showing a general copyright protection mechanism.
  • FIG. 1 is a schematic plan view showing the basic structure of an optical disc having a plurality of recording areas according to an embodiment of the information recording medium of the present invention, and the radial direction associated with the schematic plan view.
  • FIG. 2 is a schematic conceptual diagram of a recording area structure in FIG.
  • FIG. 2 is a partially enlarged perspective view on the recording surface of the optical disc according to the embodiment of the information recording medium of the present invention.
  • the optical disc 100 has, for example, a diameter of about 12 cm, similar to a DVD.
  • Power calibration area PCA Power calibration area PCA
  • Recording management area RMA Recording management area
  • Control data zone Control Data Zone
  • a lead-in area 101 having a CDZ A lead-in area 101 having a CDZ
  • a data area 102 a data area 102
  • V a lead-out area 103.
  • at least one recording layer is laminated on a transparent substrate (not shown) of the optical disc 100, for example.
  • tracks 50 such as a groove track and a land track are alternately provided in a spiral shape or a concentric shape with the center hole 1 as the center.
  • ECC Error Correction Code
  • block 51 is a record information management unit capable of error correction of record information.
  • the optical disc 100 is located below the disc-shaped transparent substrate 106, and thus the dye type or phase change constituting the information recording surface.
  • a recording layer 107 of a mold is laminated, and a reflective layer 108 is further laminated on the lower side.
  • Groove tracks GT and land tracks LT are alternately formed on the information recording surface, which is the surface force of the recording layer 107.
  • the laser beam LB is irradiated onto the groove track GT through the transparent substrate 106 as shown in FIG.
  • recording is performed on the recording layer 107 according to the recording data by irradiating the laser beam LB with the recording laser power.
  • the recording data recorded on the recording layer 107 is read by irradiating the laser beam LB with a reproduction laser power weaker than the recording laser power.
  • encryption information such as a title key based on an encryption system such as CSS
  • encryption key content encrypted by the encryption key information such as the title key.
  • encryption key information such as a title key is encrypted with encryption key information such as a disk key or a disk key set.
  • the present invention is not particularly limited to an optical disc having such five areas.
  • the data structure described below can be constructed.
  • Lead-in area 101 or lead-down The group 103 may be further subdivided.
  • FIG. 3 is a conceptual graph showing the relationship between the recording area of the optical disc according to the embodiment of the information recording medium of the present invention and the address at which the position of the recording area can be specified.
  • the vertical axis in FIG. 3 indicates address values such as sector numbers and land pre-pit addresses, for example, and the horizontal axis indicates the relative position in the radial direction of the optical disk.
  • specific power of “address” according to the present invention is constituted by, for example, a physical sector number (sector number) or a land pre-pit address which constitutes an ECC block.
  • the recording area of the optical disc 100 is as described above.
  • (I) Power calibration area PCA (Ii) Recording Management Area RMA, (iii) Control Data Zone, lead area 101 having CDZ, (iv) data area 102, and (V) lead-out area 103. It is configured.
  • various management information may be recorded in RMA and CDZ.
  • the management information includes (ii 1) information on recording characteristics such as optimum recording power, (ii) attribute information for specifying the type of medium, and (ii 3) various recording areas.
  • Various information for managing the information recording medium such as information for specifying the position.
  • the address power that can uniquely identify the position of the recording area of the optical disc 100 described above is, for example, a physical sector number (sector number) constituting an ECC block.
  • the address in the recording area of the optical disc 100 may be increased (see the bold solid line in FIG. 3).
  • the address that can uniquely identify the position of the recording area is, for example, a land pre-pit address
  • the optical pickup of the information recording / reproducing apparatus described later is The address in the recording area of the optical disc 100 may be decreased as it moves to the side (see the thin dotted line in FIG. 3). ) o
  • FIG. 4 is a schematic diagram showing the recording area of the optical disc according to the embodiment of the information recording medium of the present invention, the clock information pre-formatted corresponding to the recording area, and the detailed configuration of the address information. It is the schematic diagram shown.
  • FIG. 5 is a schematic diagram schematically showing the detailed configuration of clock information and address information preformatted in the Formatl recording area constituting one specific example of the first area of the present invention (FIG. 5 (a)).
  • FIG. 5 a schematic diagram schematically showing a detailed configuration in which various information is not preformatted in the recording area of Format 2 (straight group), which is one specific example of the second area of the present invention ( Figure 5 (b)).
  • the data structure of the recording area is referred to as RF Channel
  • the preformat configuration is referred to as Pre-Format Channel.
  • the optical disk according to the embodiment of the information recording medium of the present invention has the following two types of configurations of clock information and address information preformatted corresponding to the recording area.
  • a recording area in which clock information and address information are preformatted or not preformatted may be set.
  • a mathematical expression conceptually showing these two types of patterns is also shown. That is, the two types of recording areas are (i) the first area, that is, the Formatl recording area, and (ii) the second area, that is, the Format2 recording area. More specifically, the lead-in area 101 may have the following five recording areas.
  • the initial zone Init — Z padded with zero data, initial management information R—inf— Z, for example, the buffer padded with zero data, one zone Buf— Z, the control data zone CDZ described above, and the border area It may be configured to include an area capable of recording management information related thereto.
  • the first type of recording area includes the clock information WBL1 of the present invention and the address information of the present invention.
  • LPP1 is the first area preformatted (hereinafter referred to as “Formatl recording area” as appropriate).
  • the combination pattern in Formatl is expressed by the following equation (1).
  • an even or odd one synchronous frame corresponds to clock information WBL1, for example, eight wobbles (hereinafter referred to as “T”) (hereinafter referred to as “T”).
  • T eight wobbles
  • the three LPPs (Land Pre-Pit) corresponding to the address information LPP1 are the first three wobbles of the eight wobbles (large). Therefore, based on the period “T” of (i–l) wobble (large) as shown in the lower part of Fig. 5 (a) Based on the pushed push-pull signal and (i-2) period “T”, the LPP signal can be acquired.
  • the second type of recording area is a second area composed of a so-called straight group in which various types of information such as clock information and address information are not pre-formatted (hereinafter referred to as “Format 2 Recording area).
  • the combination pattern in Format2 is shown by the following equation (2).
  • the second area which is the second type of recording area, a wobble that cannot be detected by a general information recording / reproducing apparatus may be pre-formatted.
  • FIG. 6 shows a recording area in the optical disc according to the embodiment of the information recording medium of the present invention, a detailed configuration of clock information and address information preformatted corresponding to the recording area, and the recording information.
  • FIG. 6 is a schematic diagram schematically showing an increase in address corresponding to a region.
  • address information is not allocated in the second area, that is, the format 2 recording area described above. Specifically, address information may not be assigned in the second area, that is, the area 2 that is the recording area of Format2.
  • FIG. 7 shows details of recording areas before and after finalization processing, clock information preformatted corresponding to the recording areas, and address information in the optical disc according to the embodiment of the information recording medium of the present invention.
  • FIG. 7 is a schematic diagram schematically showing the configuration (FIGS. 7A and 7B).
  • a recording method based on a so-called disk-at-once recording method (DiskAtOnce recording method) can be mentioned. More specifically, first, as shown in FIG. 7 (a), the clock information WB L1 pre-formatted in the first area, that is, the Formatl recording area, located in the inner periphery, and the address Based on the information LPP1, the recording start position of the recording data is specified.
  • the second area that is, the Format 2 recording area
  • the recording method independent of the clock information WBL1 and the address information LPP1 in other words, (ii) the clock information WBL1 and the address Recording data is recorded based on the disk-at-once recording method, which is a recording method asynchronous to the information LPP1.
  • a stepper constituting an FG (Frequency Generator) under the control of a servo unit described later. Based on the position information indicating the position of (Stepper), the frequency in FG is changed.
  • the linear velocity can be made constant by controlling the frequency change in this FG under the control of the servo unit.
  • pseudo linear CLV method Constant Linear Velocity method
  • the recording data recording end position is specified based on the clock information WBL1 pre-formatted in the first area, ie, the Formatl recording area, and the address information LPP1, which are located on the outer periphery. Even if it is done.
  • a part of the data area 102 is recorded data, and the recorded area is recorded in the lead-in area 101 and the data after finalization processing.
  • the recording data is recorded.
  • FIG. 8 is a block diagram showing the overall configuration of an information recording / reproducing apparatus for recording / reproducing the information recording medium of the present invention.
  • the information recording / reproducing apparatus 200 includes an optical pickup 202 that irradiates the optical disc 100 with a reproduction beam and outputs a signal corresponding to the reflected light, and a rotation of the optical disc 100.
  • the servo unit 222 is supplied with the first clock signal CK1 and the pit synchronization signal SYNCp.
  • the servo unit 222 executes a spindle servo that controls the rotation of the spindle motor 203 and a focus servo and a tracking servo that are relative position controls of the optical pickup 202 with respect to the optical disc 100 in synchronization with these signals.
  • the servo unit 222 configures an FG (Frequency Generator) in the rotation control of the information recording medium in the second area, that is, the format 2 recording area.
  • the frequency in the FG is changed based on the position information indicating the position of the stepper. Therefore, the linear velocity can be made constant by controlling the frequency change in this FG under the control of the servo unit 222.
  • pseudo CLV method Constant Linear Velocity method
  • pit data DP synchronized with the first clock signal CK1 is recorded according to the length of the recording mark.
  • the recording mark in this example is a pit, and the track is composed of a pit row.
  • the track has a meandering shape according to the wobble signal WB obtained by modulating the wobble data DW, for example.
  • the wobble signal WB is synchronized with the second clock signal CK2.
  • the optical pickup 202 includes a laser diode that irradiates a reproduction beam and a quadrant detection circuit (not shown).
  • the quadrant detection circuit divides the reflected light of the reproduction beam into four regions 1A, 1B, 1C, and ID shown in FIG. 8, and outputs a signal corresponding to the amount of light in each region.
  • the head amplifier 204 amplifies each output signal of the optical pickup 202, and the divided read signal la corresponding to the region 1A, the divided read signal lb corresponding to the region IB, the divided read signal lc corresponding to the region 1C, and the region The divided read signal Id corresponding to the ID is output.
  • the optical pickup 202 and the head amplifier 204 correspond to the optical pickup means according to the present invention.
  • the sum generation circuit 210 adds the divided read signals la, lb, lc, and Id, and serves as an adder circuit that outputs the sum read signal SRF.
  • the total read signal SRF is a signal indicating the length of the recording mark.
  • the pit data demodulating circuit 211 reproduces the pit data DP based on the total read signal SRF and generates the first clock signal CK1. More specifically, the pit data DP is demodulated using a predetermined table to generate reproduction data. For example, when EFM modulation is adopted as a modulation method, a process of converting 14-bit pit data DP into 8-bit reproduction data is performed. Furthermore, a descrambling process is performed to rearrange the order of the playback data according to a predetermined rule, and the processed playback data is output. Is done.
  • the reproduction data obtained in this way is supplied to the pit data correction circuit 212 shown in FIG. 8, where it is subjected to error correction processing, interpolation processing, and the like and then stored in the notper 213.
  • the interface 214 sequentially reads the data stored in the notch 213, converts it into a predetermined output format, and outputs it to an external device. Further, various data are input / output via the interface 214 to / from the above-described line connection device connected to the external network 400, for example.
  • the push-pull signal generation circuit 220 calculates (la + Id) (lb + lc) and generates a push-pull signal.
  • the component (la + ld) corresponds to the regions 1A and 1D on the left side with respect to the reading direction, while the component (lb + lc) corresponds to the regions 1B and 1C on the right side with respect to the reading direction. That is, if the playback beam is biased to the left with respect to the pit, the push-pull signal is positive with respect to the center of amplitude, and if the playback beam is located at the center of the pit, the value of the push-pull signal is centered on the amplitude.
  • the push-pull signal becomes negative with respect to the amplitude center.
  • the relative position of the playback beam and the pit changes according to the meandering of the track, and the value of the push-pull signal indicates the relative position of the playback beam and the pit. That is, the push-pull signal is a signal corresponding to the meandering of the track.
  • the push-pull signal is output to the servo unit 222 via the low-pass filter 221.
  • the servo unit 222 performs tracking control based on the push-pull signal.
  • the push-pull signal is supplied to the band pass filter 223.
  • the pass band of the bandpass filter 223 is set so that the wobble signal WB obtained by, for example, modulating the wobble data DW at the time of recording can also extract the push-pull signal power. Therefore, the band pass filter 223 constitutes the above-described detection means together with the push-pull signal generation circuit 220, and its output signal is a reproduction of the wobble signal WB from the optical disc 100.
  • the CPU 250 performs overall control of each component of the information recording / reproducing apparatus 200.
  • FIG. 9 shows the information recording of the present invention.
  • 6 is a flowchart showing recording or reproducing processing of recording data by the information recording / reproducing apparatus according to the embodiment of the recording apparatus.
  • an information recording medium is loaded by the user (step S101).
  • control data zone CDZ (step S102).
  • the information recording medium has the first area, that is, the Formatl recording area, and the second area, that is, F. It is determined whether the information recording medium is a new standard information recording medium (new standard optical disc) having a recording area of ormat2 (step S104).
  • the information recording medium is a new standard information recording medium (step S104: Yes)
  • step S105 when recording the recording data (step S105: Yes), the recording process of the information recording medium of the new standard is performed (step S106). The recording process of the information recording medium of this new standard will be described next.
  • FIG. 10 shows one and other flowcharts (FIG. 10 (a) and FIG. 10) showing the recording process of the new standard information recording medium by the information recording / reproducing apparatus according to the embodiment of the information recording apparatus of the present invention. (b)).
  • step S201 first, under the control of the CPU 250, based on the address, the first area located on the inner circumference side, that is, the recording existing in the Formatl recording area. A search is made to the data recording start position (step S201).
  • recording data is recorded from the searched recording start position based on, for example, the disk-at-once recording method (step S202).
  • Step S203 it is determined whether or not a predetermined amount of recording data has been recorded under the control of the CPU 250.
  • a predetermined amount of recording data is recorded, the recording process of the information recording medium of the new standard is terminated. On the other hand, if the predetermined amount of recording data is not recorded, the determination in step S203 is performed again.
  • the recording as shown in Fig. 10 (b) below is performed. Processing may be performed. It should be noted that the same step number is assigned to the process that is substantially the same as the process in FIG. 10 (a) described above, and description thereof will be omitted as appropriate.
  • the final recordable position under the control of the CPU 250 That is, it is determined whether or not the force exceeds the outermost peripheral edge of the recordable recording area (step S204).
  • the final recordable position i.e., the outermost edge of the recordable recording area has been exceeded, is determined under the control of the CPU 250 by the first area located on the outer circumference side, i.e., Formatl. This may be performed based on address information preformatted in the recording area. Alternatively, this determination may be made based on whether there is a wobble in the recording area under the control of the CPU 250! /.
  • step S204 if it is determined that the last recordable position, that is, the outermost peripheral edge of the recordable recording area has been exceeded (step S204: Yes), the CPU 250 is under control. Thus, it is recognized that a recording error has occurred (step S205). On the other hand, if it is determined in step S204 that the final recordable position, that is, the outermost peripheral edge of the recordable recording area has not been exceeded (step S204: No), the above-described step is repeated. The determination of S2 03 is performed.
  • step S107 After the recording process of the information recording medium of the new standard described above, it is determined whether or not to reproduce the recorded data under the control of the CPU 250 (step S107).
  • step S107: Yes when the recorded data is reproduced (step S107: Yes), the recorded data is reproduced by the amount of the recorded data (predetermined recording capacity) under the control of the CPU 250 (step S108).
  • step S108 when the recorded data is not reproduced (step S107: No), step S108 is omitted.
  • step S109 After the recording process of the information recording medium of the new standard described above, it is determined whether or not to reproduce the recorded data under the control of the CPU 250 (step S107).
  • step S109: Yes when finalizing the information recording medium (step S109: Yes), various management information recorded in the recording management area RMA, for example, is updated under the control of the CPU 250 (step S1). Ten). Subsequently, finalization processing of the information recording medium is performed under the control of the CPU 250 (step S111).
  • step S109 when the finalization process of the information recording medium is not performed (step S109: No), the above-described steps S110 and S111 are omitted under the control of the CPU 250.
  • Step S112 it is determined whether or not the information recording medium is ejected (Eject) under the control of the CPU 250 (step S112).
  • the ejection operation (Eject processing) is performed under the control of the CPU 250 (Step S113).
  • step S112 determines whether the information recording medium is ejected.
  • Step S112 No
  • FIG. 11 is a flowchart showing the recording data reproduction process by the information recording / reproducing apparatus in the embodiment of the information recording apparatus of the present invention.
  • step S301 an information recording medium is loaded by the user (step S301). More specifically, in step S301, as an initial operation, various parameters of various servos (automatic control) such as tracking servo and focus servo are initialized under the control of the CPU 250.
  • Final end force of the data zone Playback setting area located at the inner periphery of the data area i.e., whether or not to allow recording data to be played back first when recording data is played back
  • the wobble signal (for example, this implementation) It is determined whether or not the clock information WBL1) according to the example is detected.
  • the playback setting area is included in the second area, that is, the Format 2 recording area. Therefore, the conventional player (general information recording / reproducing device) cannot acquire the push-pull signal and the LPP signal in the reproduction setting area. Therefore, a general information recording / reproducing apparatus cannot distinguish between a new standard information recording medium and a general reproduction-only information recording medium such as a DVD-ROM. Similar to the recording medium, it is possible to perform the reproduction process on the information recording medium of the new standard.
  • control data zone CDZ (step S302).
  • step S303 under the control of the CPU 250, the reproduction of the recorded data is permitted, and it is determined whether or not to perform the reproduction.
  • step S303: Yes when the reproduction of the recorded data is permitted and the reproduction is performed (step S303: Yes), the reproduction restriction system for protecting the copyright based on CSS is being released under the control of the CPU 250 ( That is, while being descrambled), the recorded data is reproduced by the amount of the recorded data (predetermined recording capacity) (step S304).
  • step S304 is omitted.
  • step S305 it is determined whether or not the information recording medium is ejected (Eject) under the control of the CPU 250 (step S305).
  • the ejection operation eject processing is performed under the control of the CPU 250 (step S306).
  • step S305 determines whether the information recording medium is ejected.
  • Step S305 No
  • it is determined whether or not to reproduce the recorded data (Step S303).
  • FIG. 12 is a schematic diagram schematically showing the detailed configuration of the recording area and the clock information and address information preformatted corresponding to the recording area in the optical disc according to the comparative example. It is.
  • the reproduction setting area that is, whether or not to allow the reproduction of the recorded data is accessed first when reproducing the recorded data.
  • a pre-formatted first area that is, a Formatl recording area, which contains clock information WBL1 that can be detected by a conventional player (general information recording / reproducing apparatus). Therefore, for example, under a copyright protection system such as CSS, the content supplier (content holder) who owns the copyright passes through the proper procedures for copyright protection and then releases the copyright-protected content.
  • a copyright protection system such as CSS
  • the information recording medium according to the present embodiment includes a first area, that is, a Formatl recording area, and a second area, that is, a Format2 recording area.
  • the reproduction setting area is included in the second area where the clock information WBL1 and the address information LPP1 are not preformatted, that is, the recording area of Format2. Therefore, the conventional player (general information recording / reproducing device) cannot acquire the push-pull signal and the LPP signal in the reproduction setting area.
  • a general information recording / reproducing apparatus cannot distinguish between a new standard information recording medium and a general reproduction-only information recording medium such as a DVD ROM. As with recording media, it is possible to perform playback processing on new standard information recording media.
  • a general information recording / reproducing apparatus for example, records title information of DV D content, and (i) cannot detect a wobble in the second area, or (ii) a straight group. Is identified as preformatted. Therefore, a general information recording / reproducing apparatus reproduces information from the information recording medium of the present invention in substantially the same manner as the information recording medium dedicated to reproduction, such as a DVD-ROM. Resume processing (resume operation) can be performed. Specifically, this information reproducing apparatus first (1) reproduces at the moment when the information recording medium is removed in the middle of reproduction, and (2) the information recording position.
  • Specific information that can identify the recording data being reproduced such as title information of the recording information that has been reproduced on the medium, is stored in a storage means such as an internal memory.
  • the information reproducing apparatus records (i) whether or not a wobble is detected over a region where specific information such as title information is recorded. (ii) Determine whether the straight group can be identified as pre-formatted, or (iii) determine whether it is possible to reproduce specific information.
  • the information reproducing apparatus (i) when no wobble is detected in the area where the specific information is recorded, (ii) when the straight group is identified as preformatted, or (iii) for example title information
  • the reproduction can be resumed from the vicinity of the address indicating the reproduction position of the recorded data stored.
  • the recorded data such as DV D content is recorded on the information recording medium of the present invention based on the application corresponding to the read-only information recording medium, for example, encryption information such as a disc key. It is possible to execute a special program that is a program to be played while decrypting.
  • a general information recording / reproducing apparatus (i) cannot detect a wobble in the second area, or (ii) identifies that the straight group is pre-formatted. It is impossible to rewrite pre-recorded encryption key information. Therefore, it is possible to realize copyright protection of the information recording medium.
  • the recording area other than the second area since the first wobble described above can be detected, general recording processing can be performed.
  • FIG. 13 shows a recording area in an optical disc according to another embodiment of the information recording medium of the present invention, and detailed configurations of clock information and address information preformatted corresponding to the recording area. It is the schematic diagram shown schematically.
  • FIG. 14 is a schematic diagram schematically showing a detailed configuration of clock information and address information preformatted in another embodiment of the second area of the present invention, that is, the Format 2 recording area.
  • the same reference numerals and names are assigned to the same components as those in the embodiment described above, and the description thereof will be omitted as appropriate.
  • the second wobble clock information WBL2 of the present invention is stored in the second area, ie, the Format 2 recording area, according to another embodiment of the information recording medium of the present invention. Preformatted.
  • the combination pattern in Format 2 is expressed by the following equation (2a).
  • the amplitude of the second wobble clock information WBL2 may be a predetermined amplitude that cannot be detected by a conventional player (general information recording / reproducing device).
  • the frequency corresponding to the clock information WBL2 of the bull may be included in a predetermined frequency band where conventional reproduction capability cannot be detected.
  • the playback setting area may be included in the second area, that is, the Format 2 recording area.
  • the processing circuit in the conventional player can record or reproduce the second area according to another embodiment at a speed based on the frequency of the second wobble, for example.
  • the processing circuit it is possible to add little or no new configuration and new processing. Therefore, it is possible to greatly reduce various changes to cope with the information recording medium of the present invention such as a new standard optical disc.
  • the 3 LPP (Land Pre-Pit) signals corresponding to the second address information LPP2 are the first 3 wobbles in every 8 wobbles (small) out of 64 wobbles (small). Located at the (small) vertex. Therefore, as shown in the lower part of FIG. 14, (iii 1) a push-pull signal oscillated based on a wobble (small) period “1Z8T”, and (iii 2) based on a period “1Z8T” LPP signal can be acquired.
  • FIG. 15 shows (i) positional information on the position of the second area, or (ii) whether the second area is equipped with V, according to another embodiment of the information recording medium of the present invention.
  • 15 is a table (FIG. 15 (a) and FIG. 15 (b)) showing the identification information to be shown.
  • FIG. 15 (a) in another example (part 2) according to the information recording medium of the present invention, as position information relating to the position of the transition region according to the present invention, (i The start address of the second area and (ii 1) the end address of the second area, or (ii 2) the recording capacity of the second area may be provided.
  • the second area is used as identification information regarding the second area according to the present invention. You may make it have a flag which shows whether it is equipped with power.
  • the position information and the identification information described above may be recorded by being included in the management information in a management area such as RMA, for example. Or, for example, it is superimposed on the address information LPP1. Even if it is possible to record.
  • the management information including the position information and the identification information described above includes (iii) information indicating that the optical disc is a two-layer type or a single-layer type, and (iv) the optical disc.
  • a field for recording disc state information indicating a recording state for example, a recording method such as an incremental recording method and a finalized process that cannot be additionally recorded may be held.
  • the information recording / reproducing apparatus has (i) positional information on the position of the second area of the information recording medium to be recorded or reproduced, or (ii) whether or not it has the second area. On the basis of the identification information indicating this, it becomes possible to record or reproduce the information recording medium quickly and accurately.
  • the present invention can also be applied to, for example, a multilayer (multiple layer type) optical disc having two or more recording layers. Furthermore, the present invention can also be applied to various information recording media compatible with other high-density recording or high transfer rate.
  • an information recording / reproducing apparatus corresponding to, for example, a single-layer optical disc has been described.
  • the present invention can also be applied to an information recording / reproducing apparatus compatible with, for example, a multilayer (multiple layer type) optical disc having two or more recording layers.
  • the present invention can also be applied to information recording / reproducing apparatuses compatible with other high-density recording or various information recording media compatible with high transfer rates.
  • the present invention is not limited to the above-described embodiments, but can be appropriately changed within the scope of the claims and the entire specification without departing from the gist or the idea of the invention which can be read.
  • a recording medium, an information recording apparatus and method, an information reproducing apparatus and method, and a computer program are also included in the technical scope of the present invention.
  • Industrial applicability Information recording medium examples include, for example, DVD (Digital Versatile Disc), BD (Blu-ray Disc), CD (Compact Disc), etc. It can be used for an information recording medium such as an optical disc that can be recorded and reproduced by irradiating the laser beam, and can also be used for a recording device and a reproducing device of the information recording medium. Further, the present invention can also be used for a recording device and a playback device that are mounted on or connectable to various types of computer equipment for consumer use or business use.

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  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

La présente invention concerne un support d’enregistrement d’informations (100) comprenant une première zone (Format1) selon lequel des informations d’horloge (WBL1) et des informations d’adresse (LPP1) sont stockées et un premier balayage détectable est préformaté pour enregistrer une partie des données d’enregistrement, et une seconde zone (Format2) dans laquelle (i) un second balayage indétectable est préformaté, où (ii) une rainure droite (ii) est préformatée, pour enregistrer d'autres parties des données d'enregistrement.
PCT/JP2006/320923 2005-10-20 2006-10-20 Support, dispositif et procede d’enregistrement d’informations, dispositif et procede de reproduction d’informations et programme informatique WO2007046494A1 (fr)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
WO2008016008A1 (fr) * 2006-08-03 2008-02-07 Panasonic Corporation support d'enregistrement, appareil d'enregistrement de données, appareil de reproduction de données et procédé d'ENREGISTREMENT de données
WO2009004717A1 (fr) * 2007-07-03 2009-01-08 Pioneer Corporation Support d'enregistrement d'information enregistreur d'information dispositif serveur pour la gestion des redevances de distribution, dispositif d'intermédiation, et dispositif de reproduction
WO2009011049A1 (fr) * 2007-07-18 2009-01-22 Pioneer Corporation Milieu d'enregistrement d'informations, dispositif de lecture, dispositif de serveur pour gérer la charge de distribution, dispositif de serveur de contenu, et dispositif d'intermédiation

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