WO2006030932A1 - 光ディスク管理システム、光ディスク管理方法、光ディスク、光ディスク再生装置、bcaコード記録装置、ライセンス管理団体 - Google Patents
光ディスク管理システム、光ディスク管理方法、光ディスク、光ディスク再生装置、bcaコード記録装置、ライセンス管理団体 Download PDFInfo
- Publication number
- WO2006030932A1 WO2006030932A1 PCT/JP2005/017218 JP2005017218W WO2006030932A1 WO 2006030932 A1 WO2006030932 A1 WO 2006030932A1 JP 2005017218 W JP2005017218 W JP 2005017218W WO 2006030932 A1 WO2006030932 A1 WO 2006030932A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bca
- optical disc
- key
- bca code
- recording device
- Prior art date
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Classifications
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- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00166—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software
- G11B20/00181—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software using a content identifier, e.g. an international standard recording code [ISRC] or a digital object identifier [DOI]
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- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
- G11B20/00115—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers wherein the record carrier stores a unique medium identifier
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00224—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is obtained from a remote server
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/0026—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored as a barcode
- G11B20/00268—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored as a barcode said barcode being recorded in a burst cutting area [BCA]
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- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/00347—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier wherein the medium identifier is used as a key
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- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
- G11B7/0053—Reproducing non-user data, e.g. wobbled address, prepits, BCA
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- 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
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- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
Definitions
- Optical disc management system optical disc management method, optical disc, optical disc playback apparatus,
- BC A code recorder, license management organization
- the present invention relates to an optical disk management system, an optical disk management method, an optical disk, an optical disk playback apparatus, a B C A code recording apparatus, and a license management organization that prevent unauthorized manufacture and reproduction of an optical disk.
- Recording media commonly called optical discs, change the reflectance of reproduction-only discs (CD-ROM, DVD-ROM, etc.) in which data is recorded in advance by stamping technology, and dye-based recording films.
- Write-once discs CD-R, DVD-R, etc.
- rewritable discs that record data by changing the reflectivity of the phase change recording film.
- types of discs CD_RW, DVD—RW, DVD—RAM, etc.
- BCA Band Cut tyng Area
- a DVD-ROM disc for playback only can be recorded on a dedicated device that uses a high output laser (hereinafter referred to as a BCA code recording device).
- the recording mark is formed by removing (burning out) part of the reflective film of the disk in a radial pattern.
- the write-once DVD_R recording method uses the BCA code recording device to form recording marks by changing the dye (reflectance) of the recording film.
- the initialization marks used in the crystallization process of the phase change recording film are used, and the recording marks are marked by leaving the non-crystallized portions in a radial pattern. To form.
- Patent Document 1 Japanese Patent Laid-Open No. 10-233019
- Patent Document 2 Japanese Patent Laid-Open No. 2 0 1 — 7 6 3 4 5 Disclosure of Invention
- An optical disc on which the B C A code is recorded can be easily copied illegally by a person with a certain level of technical capability due to recent developments in computer technology.
- optical discs are often manufactured at overseas factories with low manufacturing costs in order to reduce costs.
- an unauthorized user illegally manufactures an optical disc on a holiday using a regular optical disc manufacturing apparatus, the manufactured optical disc is an illegally manufactured optical disc. It is difficult to determine whether this is the case.
- the problem of unauthorized manufacturing using the above-mentioned authorized optical disc manufacturing apparatus is, for example, in the case of a DVD containing movie information licensed for a certain quantity from a licensee who has the copyright. If quantities that are out of range are on the market, it is difficult to prove that they have been illegally manufactured.
- An object of the present invention is to eliminate the above-mentioned problems caused by the prior art, and to prevent unauthorized manufacture and reproduction of an optical disk, an optical disk management system, and an optical disk management. Provide a method, an optical disc, an optical disc playback device, a BCA code recording device, and a license management organization.
- the present invention provides a BCA code recording device manufacturer that manufactures a BCA code recording device that records a BCA code on an optical disc, and a license for optical disc manufacturing.
- a BCA code recording device manufacturer that manufactures a BCA code recording device that records a BCA code on an optical disc
- a license for optical disc manufacturing Use the license management organization that manages the license and the BCA code recording device manufactured by the BCA code recording device manufacturing manufacturer and obtain an optical disc with permission from the license management team.
- a unique serial ID (a) is issued for each manufactured BCA code recording device.
- the BCA code recorder manufacturer that reports the serial ID (a) to the license management team, and the serial ID (a) reported by the BCA code recorder manufacturer Based on the BCA equipment key (b) and the media key (c) issued for each title, the BCA equipment key (b) is issued and sent to the optical disk manufacturer.
- the license management organization that sends the generated authentication key (d) to the optical disc playback device, the media key (c) received from the license management organization, and the BCA code recording device manufacturer so A special encryption key (e) is generated based on the issued serial ID (a), and the special encryption key (e) is stored in the specified area of the BCA code on the optical disk together with the BCA code.
- the first feature is that the optical disk can be regenerated only when and have a predetermined relationship.
- the present invention is the optical disk management system according to the first feature, wherein the BCA code recording device stores the serial ID (a) stored in the internal memory and a license management organization.
- the second feature is that BCA code recording can be performed only when the BCA equipment key (b) sent from is in a predetermined relationship.
- the present invention provides a BCA code recording device manufacturing maker that manufactures a BCA code recording device that records a BCA code on an optical disc, and a license that manages a license for optical disc manufacturing.
- An optical disc that uses a BCA code recording device manufactured by the management organization and the BCA code recording device manufacturer and that produces optical discs with permission from the license management team.
- the BCA code recording device manufacturing manufacturer assigns a unique serial ID (a) to each manufactured BCA code recording device.
- the BCA equipment key (b) is issued and sent to the optical disk manufacturer, and the BCA equipment key (b) and the media key issued for each title (c )
- an authentication key (d) generated based on the second step of sending the authentication key (d) to the optical disk playback device, and the media key received from the license management organization by the optical disk manufacturer (c )
- the serial ID (a) issued by the BCA code recording device manufacturer a special encryption key (e) is generated, and the special code key (e) is stored in the specified area of the BCA code.
- the third step of recording on the optical disk as a BCA code in the network, and the optical disk playback device is issued by the license management organization and the special encryption key (e) reproduced from the optical disk.
- the optical disk is played back only in the field ⁇ where the authentication key (d) has a predetermined relationship.
- the present invention provides an optical disk management method according to the second feature.
- the fourth feature is that it includes a fifth step in which the BCA code recording is allowed only when (b) and have a predetermined relationship.
- the present invention provides a BCA code recording device manufacturing manufacturer that manufactures a BCA code recording device that records a BCA code on an optical disc, and a license management that manages a license for optical disc manufacturing.
- a BCA code recording device manufacturing manufacturer that manufactures a BCA code recording device that records a BCA code on an optical disc
- a license management that manages a license for optical disc manufacturing.
- optical disks Incorrect production of optical discs with optical disc manufacturers that use 'recording' equipment and with permission from the license management team to produce optical discs.
- the fifth feature is that a special encryption key (e) generated based on the media key (c) issued by the license management organization for each title is included in the BCA code and recorded. To do.
- the present invention also provides an optical disc reproducing apparatus for reproducing an optical disc on which a BCA code is recorded, a special encryption key (e) included in the BCA code of the optical disc, and license management.
- the sixth feature is that the optical disk can be regenerated only when the authentication key (d) issued by the organization has a predetermined relationship.
- the present invention also provides a BCA code recording device manufacturer that manufactures a BCA code recording device that records a BCA code on an optical disc, and a license management that manages a license for optical disc manufacturing.
- An optical disc that uses an BCA code recording device manufactured by the organization and the BCA code recording device manufacturer, and manufactures an optical disc with permission from the license management team.
- This is a BCA code recording device that prevents the optical disk from being manufactured illegally with the manufacturer, and is specific to each BCA code recording device issued by the BCA code recording device manufacturer.
- the internal memory storing the serial ID (a) of the system and the facility key (b) issued by the license management organization based on the serial ID (a) are received via the communication network.
- External memory that can be used and a license management organization for each title Including a BCA equipment controller that receives the issued media key (c) via the communication network and stores BCA data assigned to each title, and stores it in the internal memory.
- BCA code recording is permitted only when the real ID (a) and BCA equipment key (b) are in a predetermined relationship, and the BCA equipment key (b) and media key (c) stored in the external memory are allowed.
- a special encryption key e, and the generated special encryption key e is The seventh feature is that it is included in the data and recorded on the optical disk.
- the present invention is a license management organization that prevents unauthorized manufacture and reproduction of optical discs, and is a unique serial issued by each BCA code recording device by a BCA code recording device manufacturer.
- a BCA equipment key (b) is generated based on the ID (a) and an authentication key (d) based on the BCA equipment key (b) and the media key (c) issued for each title.
- the BCA equipment key (b) has a predetermined relationship with the serial ID (a) issued uniquely to the BCA code recording device in the BCA code recording device, the BCA code
- the authentication key (d) is generated by the optical disc player based on the BCA equipment key (b) and the media issue key (c).
- Optical disk when in the specified relationship with encryption key e A call that is used in a component that permits the reproduction characterized eighth.
- the present invention relates to a serial ID (a) issued for each device by a BCA recording device manufacturer and a BCA equipment key (b) issued by a license management organization based on the serial ID (a). Since the BCA code recording is permitted only when and are in a predetermined relationship, unauthorized manufacture of the optical disk can be prevented.
- the present invention provides an optical disc playback device, which is included in the authentication key (d) issued by the license management organization based on the BCA equipment key (b) and the media key (c), and the reproduced BCA data.
- an optical disc playback device which is included in the authentication key (d) issued by the license management organization based on the BCA equipment key (b) and the media key (c), and the reproduced BCA data.
- FIG. 1 is a diagram for explaining an unauthorized copy discovery system according to an embodiment of the present invention. ⁇ Explanation of symbols>
- an optical disk management system an optical disk management method, an optical disk, an optical disk playback device, a BCA code recording device, and a license management organization according to an embodiment of the present invention will be described in detail with reference to FIG. explain.
- the optical disk management system is a BCA recording apparatus manufacturing manufacturer that manufactures a BCA code recording apparatus 31 that records BCA code on an optical disk. 10 and the BCA code recording device 31 manufactured by the manufacturer 10 and with permission from the license management organization 20
- a disc manufacturing manufacturer 30 that records data (music / movies and other data) according to the title, a license management organization 20 that manages licenses for optical disc production such as movies, It is composed of an optical disk regenerator 70 that reproduces an optical disk 60 with a BCA code manufactured by a disc manufacturing force 30.
- This optical disk reproducing device 70 is connected to an optical disk reproducing device manufacturer (not shown). Manufactured.
- the BCA code recording device manufacturer 10 issues a unique serial ID (a) for each manufactured BCA code recording device and registers it in the internal memory 3 2 of the BCA code recording device. At the same time, the serial ID (a) is reported to the license management organization 20.
- the license management organization 20 issues an issue function 21 that issues a BCA equipment key (b) based on the serial ID (a) reported by the manufacturer of the BCA code recording device, Issuing function 22 to issue a media key (c) for each title, and issuing function 23 to issue an authentication key (d) based on the BCA equipment key (b) and media key (c) Is provided.
- the optical disk manufacturer 30 includes an internal memory for storing a unique serial ID (a) for each BCA code recording device issued by the BCA code recording device manufacturer 10.
- the BCA equipment link that receives the media key (c) issued by the license management organization 20 for each title via the communication network and stores the BCA data assigned for each title. Controllers 3 and 8 are included.
- the BCA code recording device 31 has a predetermined relationship between the serial ID (a) stored in the internal memory 3 2 and the BCA equipment key (b) stored in the external memory 37.
- a function 3 5 and a BCA code recording function 3 6 for recording the BCA code including the special encryption key (e) on the optical disc by the mixed function 3 5 are provided.
- the “predetermined relationship” described in the present embodiment means that, for example, the result when the serial ID (a) and the BCA equipment key (b) are calculated by a predetermined arithmetic expression is a constant value. It means a relationship such as In addition, a plurality of functions described in this specification can be configured as a circuit or a program.
- the BCA code that is the subject of this embodiment has a plurality of bar-code marks (vertical bars) arranged in parallel along the inner track of the optical disc, and data such as copyright notices is displayed according to the interval between the marks. It constitutes.
- the recording position of the mark constituting this BCA code is determined by, for example, the DVD standard, and this standard defines a predetermined margin in the disc radius direction and the track direction.
- the area for recording the BCA code has a physical margin determined by the rules, and it is easy to include the special encryption key ( e ) in this margin area.
- the special encryption key (e) is a predetermined procedure within a range in which a BCA code composed of a plurality of marks can be recognized as a BCA code in the optical disc radial position or the track direction position of the plurality of marks. It can also be embedded as a modulated secret code. That is, the characteristic that the BCA code can be deformed within the range that can be recognized as the BCA code (specifically, the characteristic that the mark layer can be moved within the margin in the radial direction and the track direction) is used.
- the special key (e) can be embedded in the BCA code as a secret code by using the mark length change and deformation.
- the BCA equipment key (b) stored in the external memory 37 is The disk manufacturer 30 is set to be accessible from the outside only on the regular factory working day, or only by an authorized administrator.
- the optical disc playback device 70 has a playback function 7 1 for playing back a BCA code played from the optical disc 60, a special encryption key (e) included in the played BCA code, and a communication line. Is compared with the authentication key (d) received from the license management organization 20 through the server, and it is determined whether or not both keys (d) and (e) are in a predetermined relationship.
- Authenticating function 7 1 that authenticates optical disk 6 0 as a regular title, and permits playback of optical disk 60 when authentication function 7 2 authenticates as a legal title A permission function 7 3, and an unreproducible function 7 3 for disabling the reproduction of the optical disk 60 when the authentication function 7 2 authenticates that it is not a regular titnel.
- the optical disk management system and optical disk management method configured in this manner are issued by the BCA code recording device 31 force S, the BCA recording device manufacturer, and the serial ID (a) stored in the internal memory 32 and the license management.
- the serial ID (a) stored in the internal memory 32 and the license management.
- the serial ID (a) stored in the internal memory 32
- the license management In order to permit BCA code recording only when organization 20 is issued based on the serial ID (a), received through the line, and has a predetermined relationship with the 80 facility key (b) stored in the external memory 37. In addition, unauthorized manufacture of the optical disk can be prevented.
- the BCA equipment key (b) cannot be read from the external memory 37, so that illegal manufacture of the optical disk is prevented. be able to.
- the BCA code of the illegally manufactured optical disc includes a special encryption code that includes the BCA equipment key (b) and serial ID (a).
- the key (e) is included and the license management organization 20 etc. identifies the disc manufacturing force that illegally manufactured the optical disc by deciphering the special encryption key (e). be able to.
- the optical disk management system and the optical disk management method according to the present embodiment include an authentication based on the BCA equipment key (b) and the media key (c) issued by the optical disk playback device 70S and the license management organization 20.
- the relationship between the key (d) and the special encryption key (e) included in the reproduced BCA data and generated by the BC A code recording device based on the BCA equipment key (b) and the authentication key (d) Since the optical disc playback is permitted only when the predetermined relationship is established, illegal playback of the optical disc can be prevented.
- the present invention can be widely used in industrial fields related to the manufacture and use of optical discs.
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Optical Recording Or Reproduction (AREA)
- Storage Device Security (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-268898 | 2004-09-15 | ||
JP2004268898A JP4627421B2 (ja) | 2004-09-15 | 2004-09-15 | 光ディスク管理システム及び光ディスク管理方法 |
Publications (1)
Publication Number | Publication Date |
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WO2006030932A1 true WO2006030932A1 (ja) | 2006-03-23 |
Family
ID=36060178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/017218 WO2006030932A1 (ja) | 2004-09-15 | 2005-09-13 | 光ディスク管理システム、光ディスク管理方法、光ディスク、光ディスク再生装置、bcaコード記録装置、ライセンス管理団体 |
Country Status (3)
Country | Link |
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JP (1) | JP4627421B2 (ja) |
TW (1) | TW200623071A (ja) |
WO (1) | WO2006030932A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006260614A (ja) | 2005-03-15 | 2006-09-28 | Sony Corp | ディスク製造方法、データ記録装置、情報記録媒体、情報処理装置および方法、並びにコンピュータ・プログラム |
CN106847314A (zh) * | 2017-01-23 | 2017-06-13 | 武钰竹 | 一种光盘保密管理设备和系统 |
Citations (5)
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WO1997014144A1 (fr) * | 1995-10-09 | 1997-04-17 | Matsushita Electric Industrial Co., Ltd. | Disque optique, enregistreur optique, dispositif optique de reproduction, systeme crypte de communications et systeme d'autorisations associe |
JP2002279727A (ja) * | 2001-03-16 | 2002-09-27 | Sony Corp | 信号記録媒体とコンテンツ信号生成装置及びコンテンツ信号再生方法とコンテンツ信号再生装置 |
JP2004288280A (ja) * | 2003-03-20 | 2004-10-14 | Sony Corp | 記録媒体及びその製造方法、再生方法及び再生装置、並びに著作権管理方法 |
JP2005044425A (ja) * | 2003-07-25 | 2005-02-17 | Memory Tec Kk | 海賊版制作の難易度を高めたデジタル多用途ディスク、その再生装置 |
JP2005078212A (ja) * | 2003-08-28 | 2005-03-24 | Sony Corp | 情報処理装置及び情報処理方法、コンテンツ識別装置及びコンテンツ識別方法、並びにコンテンツ識別システム |
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2004
- 2004-09-15 JP JP2004268898A patent/JP4627421B2/ja not_active Expired - Fee Related
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2005
- 2005-09-13 TW TW094131399A patent/TW200623071A/zh unknown
- 2005-09-13 WO PCT/JP2005/017218 patent/WO2006030932A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO1997014144A1 (fr) * | 1995-10-09 | 1997-04-17 | Matsushita Electric Industrial Co., Ltd. | Disque optique, enregistreur optique, dispositif optique de reproduction, systeme crypte de communications et systeme d'autorisations associe |
JP2002279727A (ja) * | 2001-03-16 | 2002-09-27 | Sony Corp | 信号記録媒体とコンテンツ信号生成装置及びコンテンツ信号再生方法とコンテンツ信号再生装置 |
JP2004288280A (ja) * | 2003-03-20 | 2004-10-14 | Sony Corp | 記録媒体及びその製造方法、再生方法及び再生装置、並びに著作権管理方法 |
JP2005044425A (ja) * | 2003-07-25 | 2005-02-17 | Memory Tec Kk | 海賊版制作の難易度を高めたデジタル多用途ディスク、その再生装置 |
JP2005078212A (ja) * | 2003-08-28 | 2005-03-24 | Sony Corp | 情報処理装置及び情報処理方法、コンテンツ識別装置及びコンテンツ識別方法、並びにコンテンツ識別システム |
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JP2006085813A (ja) | 2006-03-30 |
JP4627421B2 (ja) | 2011-02-09 |
TW200623071A (en) | 2006-07-01 |
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