CN100550154C - 记录介质的数据记录方法 - Google Patents
记录介质的数据记录方法 Download PDFInfo
- Publication number
- CN100550154C CN100550154C CNB2003101014022A CN200310101402A CN100550154C CN 100550154 C CN100550154 C CN 100550154C CN B2003101014022 A CNB2003101014022 A CN B2003101014022A CN 200310101402 A CN200310101402 A CN 200310101402A CN 100550154 C CN100550154 C CN 100550154C
- Authority
- CN
- China
- Prior art keywords
- data
- key data
- recording
- recorded
- decoding
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
-
- 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
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
-
- 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
- G11B20/0021—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
-
- 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
-
- 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
- G11B20/00297—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 in a management area, e.g. the video manager [VMG] of a DVD
- G11B20/00318—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 in a management area, e.g. the video manager [VMG] of a DVD the key being stored in the TOC
-
- 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
- G11B20/00413—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 input by a user
-
- 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
- G11B20/00485—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
- G11B20/00492—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein content or user data is encrypted
- G11B20/00528—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein content or user data is encrypted wherein each title is encrypted with a separate encryption key for each title, e.g. title key for movie, song or data file
-
- 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
- G11B20/00485—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
- G11B20/00557—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein further management data is encrypted, e.g. sector headers, TOC or the lead-in or lead-out areas
-
- 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
- G11B7/0045—Recording
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
- G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
- G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10595—Control of operating function
- G11B11/10597—Adaptations for transducing various formats on the same or different carriers
-
- 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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
- G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/23—Disc-shaped record carriers characterised in that the disc has a specific layer structure
- G11B2220/235—Multilayer discs, i.e. multiple recording layers accessed from the same side
-
- 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
-
- 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
-
- 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
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24035—Recording layers
- G11B7/24038—Multiple laminated recording layers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Paper (AREA)
Abstract
一种记录介质的数据记录方法,所述记录介质具有记录域,所述方法包括以下步骤:按照加密密钥数据加密输入的数据;在所述记录介质的所述记录域记录所述加密的数据;和在所述记录介质的所述记录域以外的部分记录至少一部分所述加密密钥数据。按照本发明的另一方面,本发明的方法包括以下步骤:按照加密密钥数据加密输入的数据;以一种记录格式在所述记录介质上记录所述加密的数据;和以另一记录格式在所述记录介质上记录至少一部分所述加密密钥数据。
Description
本申请是专利号为96111069.4、申请日为1996年6月30日、发明名称为“数据记录介质”的发明专利申请的分案申请。
技术领域
本发明涉及一种用于记录数据信号的介质,以及在该数据记录介质上记录数据的方法,和从数据记录介质上再现数据的方法。
背景技术
在用来记录数据信号如音频数据、视频数据或各种其它类型的数据的数据记录介质中,用光学方法记录这些数据信号的介质已在全世界广泛应用。这种光记录介质实际由一个被称作音乐CD或CD-ROM的介质组成,其中的CD-ROM是一种音乐CD转变成记录数据的一种改型。
当前CD和CD-ROM在世界上广泛流行的同时,大量原版介质的盗版也在充斥全世界。在这些盗版中,发现一些非常低劣的版本。例如,这种低劣版本是这样制作的:剥掉CD盘的保护层,使得铝层(这是形成凹坑的层)可以暴露在外,镀一层外衣于铝层上,然后反复地压印此镀层以获得许多复制品。防御这种低劣盗版保护原版是十分困难的。
防止非法拷贝原始CD的方法,在日本专利公开号182766/95中有介绍,此方法建议在CD上加上密码使得数据不能被拷贝。这种方法对上述的物理方法的非法拷贝不是很有效。
另外,前面提到的问题在被称作下一代数据记录介质的数字视频盘(DVD)中,也是十分严重的。
发明内容
在前述条件下,本发明的目的是提供一种数据记录介质,一种数据记录方法和一种数据再现的方法,这种介质及相关的方法是用来防止轻易盗版和轻易再现记录的数据信号的,即使是在数据记录介质的凹坑形成层可用任何方法都可再现的情况下。
按照本发明的一个方面,提供一种从介质再现数据的设备,该介质具有在对应于第一记录格式的记录域中记录的加密的数据和用以解密所述加密的数据的第一密钥数据,所述第一密钥数据记录在对应于不同于所述第一记录格式的第二记录格式的另一记录域中,所述设备包括:读取所述加密的数据和所述第一密钥数据的读取单元;从所述设备的外部输入第二密钥数据的外部输入单元;采用所述第一密钥数据产生解码密钥数据,如果不允许所述读取单元读取所述第一密钥数据,采用所述第二密钥数据产生解码密钥数据,然后根据所述解码密钥数据将所述加密的数据解码的解码单元;和再现所述解码的数据的再现单元。
按照本发明的另一方面,提供一种从介质再现数据的方法,该介质具有在对应于第一记录格式的记录域中记录的加密的数据和用以解密所述加密的数据的第一密钥数据,所述第一密钥数据记录在对应于不同于所述第一记录格式的第二记录格式的另一记录域中,所述方法包括以下步骤:读取所述加密的数据和所述第一密钥数据;从外部输入第二密钥数据;采用所述第一密钥数据产生解码密钥数据,如果不允许所述读取单元读取所述第一密钥数据,采用所述第二密钥数据产生解码密钥数据,然后根据所述解码密钥数据将所述加密的数据解码;和再现所述解码的数据。
按照本发明的一个方面,提供一种记录介质的数据记录方法,所述记录介质具有记录域,所述方法包括以下步骤:按照密钥数据加密输入的数据;在所述记录介质的所述记录域记录所述加密的数据;和在所述记录介质的所述记录域以外的部分记录至少一部分所述密钥数据。
按照本发明的另一方面,提供一种记录介质的数据记录方法,所述方法包括以下步骤:按照密钥数据加密输入的数据;以一种记录格式在所述记录介质上记录所述加密的数据;和以另一记录格式在所述记录介质上记录至少一部分所述密钥数据。
根据本发明,加密的原始数据,和解码用的密钥数据都被记录在数据记录格式或记录层彼此不同的相应的记录区域中。或内容数据(Content Data)至少被记录在数据记录格式或层彼此不同两个域上。这种方法可防止轻易再现原始数据或使得难于复制某个域的数据,即使是在用任何方法可以再现其它域的记录数据的情况下。因此这种方法可防止轻易的获得全部数据(再现的数据)。
本发明的数据记录介质包括至少两个有相应记录格式或层的记录域。为解决上述问题,加密数据被记录在一个记录域,同时至少一部分解此加密数据的密钥数据被记录在另一个域。或此内容数据至少被记录在两个记录域上。
另外,本发明的数据记录方法是数据被记录在至少包含有数据记录格式或层彼此不同的两个域的数据记录介质上。在一个记录域上,加密的内容数据被记录,在其它记录域至少一部分解此加密数据的密钥数据被记录在另一个域。或此内容数据至少被记录在两个记录域。
另外,本发明的数据再现方法是从至少包含有数据记录格式或层彼此不同的两个记录域的数据记录介质上再现数据。为解决上述问题,本方法采取读出至少被记录在两个记录域的数据然后合成这些数据的步骤。
在操作上,加密数据和解此加密数据的密钥数据被记录在至少包含两个数据记录格式或层彼此不同的相应的记录域上,或内容数据被记录扩展在至少两个数据记录格式或层是彼此不同的记录域上。例如,即使用任何方法再现了一个记录域的内容数据,而再现另一个域的数据就很困难,这就不可能获取全部数据(再现数据)。
附图说明
图1表示加密数据、密钥数据和根据本发明实施例的记录方法记录这些数据的光盘。
图2表示从光盘读加密数据和密钥数据,并依据本发明实施例解码这些加密数据的设计结构。
图3是一个依据本发明实施例,从光盘上的数据到数据再现过程的流程图。
图4表示本发明实施例的光盘设计。
图5表示记录内容数据在第一和第二记录层的格式。
图6是表示再现本发明实施例的光盘的再现设备的电路图。
具体实施方式
以下将参考附图对本发明的优选实施例进行描述。
首先,从具有相应记录格式的两种记录层的光盘作为数据记录介质的用法说起。
在本实施例中,如图1所示的光盘D是由基片B、按顺序层叠在B片上第一和第二记录层L1和L2,和在记录层的顶部形成的一个透明的保护层P所形成。例如,加密数据被记录在第一记录层L1,用来解密(称作解码)加密数据的密钥数据(称作“密钥数据”)被记录在第二记录层L2,被记录在光盘D的第一记录层L1上的加密数据是内容数据(意思是被记录的数据),它通过加密电路3被加密在密钥数据上。同样,加密数据和密钥数据提供给例如光拾取装置的记录单元5。其后,通过变化光拾取装置上的焦点把每一个加密数据和密钥数据分别记录在第一记录层L1和第二记录层L2。然后,显示密钥数据是否记录在光盘的第二记录层L2上的信息被记录在光盘的第一记录层L1的TOC(内容表)域。TOC域将在后面详细描述。
另一方面,如图2,当再现光盘D信息时,记录在第一层L1的加密数据和记录在第二层L2的密钥数据通过再现元件如光拾取装置,并改变光拾取装置上的聚焦而从光盘D上读出。所读出数据被提供给解码电路4,在解码电路中加密数据在密钥数据上被解码。解码数据是从光盘D上再现的内容数据。更具体的说,解码电路4的作用是根据密钥数据产生解码密钥数据并根据解码密钥数据对加密数据进行解码。
另外,图1和2显示层叠在光盘D一面的多层记录层。这些记录层可层叠在光盘D的两面。
从光盘D上再现数据的流程如图3所示。图4所示的光盘D包括位于盘中心的中心孔102,对应于作为程序管理域的TOC(内容表)的盘首域103、用于记录数据的数据域104、和一个盘尾域105,盘尾域105是对应着依从内圈到外圈排列的顺序安排的数据终端域。例如,位于光盘D第一层L1最内圈的TOC域的数据是显示密钥数据是否记录在光盘的第二记录层L2上的信息。
如图3所示,在S1步,执行读取记录在第一记录层L1即光盘D的第一记录层的TOC域的信息的过程。
然后,在S2步,根据记录在TOC域的信息,确定在光盘的第二层L2,即第二记录层L2上是否记录了密钥数据。如果在S2步未记录有密钥数据,操作进入S6步。如果在S2步没有密钥数据被记录,即意味着记录在第一记录层L1的数据是没有加密的数据。因此,在S6步按原样读出在第一记录层L1的数据。相反,如果在S2步密钥信息被确定已记录在第二记录层L2上,则操作进行S3步。
在S3步,读取记录在第二记录层L2的密钥数据。接着在S4步中读取记录在第一记录层L1的加密数据。
在S5步步,根据在第二记录层L2读出的密钥数据,从第一记录层L1读出的加密数据被解码。
如上所述,根据本实施例,加密数据是被记录在光盘D的第一记录层L1上。密钥数据被记录在不同于第一记录层L1的第二记录层L2上。因此,即使原盘的盗版可以通过剥去在第一记录层L1上的保护层P等,以使得露出第一记录层L1,进而在第一层L1上镀上一层金属膜的方法而产生,但第二记录层L2上记录的密钥数据却不容易再现。而且从光盘D的第二记录层L2剥去第一记录层L1是很困难的。对本实施例的光盘D,原始数据是不允许从记录在第一记录层L1上的加密数据得以再现的。
在前一例子中,其说明适于对应两种记录格式的具有第一和第二记录层L1和L2的光盘D。另外,这两种记录格式的记录域可以是磁光记录域和凹坑型记录域的组合、相变记录域和凹坑型记录域的组合、有机颜色材料型记录域和凹坑型记录域的组合,或是用紫外线激光束记录数据的记录介质和凹坑型记录域的组合。在这些组合中,加密数据被记录在凹坑型记录域中,密钥数据记录在磁光记录域、相变型记录域、有机颜色材料型记录域、或是用紫外线激光束记录数据的记录介质上。并且像用于这两种记录格式的记录介质的别的组合一样,可能选择一种记录域的组合,其记录域的组合在盘上是各种各样的,即一个称为摆动型(wobbling type)记录域和一个以上提到的记录域,如凹坑型记录域、磁光记录域、相变记录域、和有机颜色材料型记录域。例如在这类组合中,可以把密钥数据记录在摆动型记录域上。
如上所述,如果两个记录域的一个是凹坑型记录域,其上记录的数据可以比别的类型的记录域上记录的数据更容易再现,则别的记录域可以是磁光记录域、相变型记录域、有机颜色材料型记录域、或是用紫外线激光束记录数据的介质上的记录域,从它们的每一种上再现被记录的数据都是困难的。例如在这样的组合中,即使原盘的盗版可以通过剥去在记录域上的保护层P,以便露出记录域,进而在凹坑型记录域上镀上一层金属膜的方法而严生,但是别的记录域的再现却是十分困难的。这意味着任何原始数据都不允许从光盘上被复制。
前文指出的用紫外线激光束记录数据的操作过程如下:一个适当的作用于光盘材料上的紫外线激光束被施加到由聚碳酸酯(poly-carbonate)或丙烯酸(acrylic)制成的光盘片。在紫外线激光束击中的部分产生烧蚀。烧蚀严生击中部位的蚀痕,从而在盘上形成一个凹坑。因此紫外光束数据记录域可以在内容数据的凹坑形记录域以外的部分形成。如上所述,因为密钥数据可能在原始记录域以外的部分形成,复制数据自然就不可能。另外,聚碳酸酯用于吸收波长在290nm以下的射线。丙烯酸用于吸收波长在350nm以下的射线。波长在190nm以下的紫外光束被空气吸收。根据这些特性,为了通过光束分解(decomposing)光盘的盘片,波长在190-370nm的紫外光束较合适。
在前述实例中,全部密钥数据不必都记录在光盘上。如,可以只记录一部分密钥数据而余下部分从外部输入单元输入。
下一步,在一对记录格式中包括作为一种记录格式的凹坑和用高输出的激光刻在盘上作为另一种格式。在这一对格式里,加密数据被记录在凹坑形记录域,而由字母数字混合码(称用SID码)组成的密钥数据例如通过高输出激光照射光盘被刻在光盘的内圈部分。如果把不允许被光拾取装置读出的数据用作密钥数据,字母数字混合码组成的密钥数据可通过外部输入单元如键盘被送入光盘再现设备。光盘再现设备根据从外部输入单元输入的密钥数据将加密数据解码。在上述情况下,即使记录在凹坑形记录域的数据可以被再现,但任何原始数据也不可能被再现,除非从外部输入单元输入字母数字码组成的密钥数据。
在光盘D包含前述第一和第二记录层L1和L2作为两种记录格式的记录域的情况下,如图5所示,数据被交替地记录在第一和第二记录层L1和L2以防非法复制数据。也就是说,在图5的记录方式下,如果原盘的盗版通过剥掉第一记录层L1上的保护层,而暴露第一记录层来进行的话,记录在第二记录层L2的数据就完全不可能再现。因此记录在光盘上的数据是不允许被再现的。这意味着原盘的盗版不容易被制造。被交替地记录在第一和第二记录层L1和L2的数据可以每一字节或大于一字节的每几个字节的方式记录。
被交替地记录在第一和第二记录层L1和L2的数据没有必要加密。当从光盘上再现数据时,读出被交替地记录在第一和第二记录层L1和L2的数据并把被交替地记录在第一和第二记录层L1和L2的数据彼此组合成为原始数据。光盘是否用图5所示的记录格式取决于记录在第一层L1的TOC域的信息,此信息显示了如图5所示的并与第一实施例同样的方式的记录格式的使用。当从光盘上再现数据时,要根据记录在TOC域的信息才能读出记录在第一和第二记录层L1和L2的数据。然后,记录在第一和第二记录层L1和L7的数据彼此结合成原始数据。
根据现有光拾取装置的功能,想交替地从第一第二层L1和L2再现数据是十分困难的。实际上再现操作是需要读出预定了长度(如一扇区)的第一记录层L1的一段数据,并将其存储在存储器中,再读出预定了长度(如一扇区)的第二记录层L2的一段数据,并存储在存储器中,然后交替读出存储在这些存储器的数据,并把这些数据段彼此合成为原始数据。
加密数据和密钥数据的结合方式在每一文件如程序数据中被定义。但在这些情况下,有必要记录每个文件的标识信息。在每个文件中这两种数据结合的差异可加强对原始数据再现的防范。
下一步将对包括在前述参考图6的实施例中的光盘D再现设备进行说明。
首先,对在光盘D记录加密数据和密钥数据的情况下的实现操作进行说明。下面的基本操作与图3的流程图一样。
如图6所示,数字17代表光拾取装置。光拾取装置17的作用是聚焦激光光束于光盘D上、接受反射激光束、读取记录在光盘D上的数据信号、然后发送数据信号给解码电路15。另外,光拾取装置17发送产生于反射激光束的一个聚焦伺服误差信号和一个跟踪误差信号到伺服电路14。
在控制器CPU 10的控制下,伺服电路14产生聚焦伺服误差信号、聚焦伺服信号和跟踪误差信号,后两者对应于跟踪误差信号。然后这些信号被传送到光拾取装置17。伺服电路14还为光盘D产生旋转跟踪信号。马达18由旋转伺服信号控制。记录在第一记录层L1的加密数据和记录在第二记录层的密钥数据都可通过改变光拾取装置上的焦距从光盘上读出。
另一方面,解码电路15进行解码并纠正从光拾取装置17发送的数据信号的错误。
从光盘D上读出并被解码电路15解码的密钥数据,存储在由控制器CPU10控制的工作RAM 12上。控制器CPU 10根据存储在RAM 12的密钥数据对从光盘D上读出的,并在解码电路15上解码的加密数据进行解码。控制器CPU 10需要的程序数据被存储在程序ROM 13内。
经上述过程解码的原始数据通过接口电路16和输出端11被输出。另一方面,如果数据被记录在光盘D的两个记录域,则可以执行下列操作。
光拾取装置17从每个记录域分别读出记录在光盘D的两个记录域的数据。从两个记录域分别读出的数据经解码电路15解码,然后存储在由控制器CPU 10控制的工作RAM 12上;即一段被预设了长度的并记录在第一层L1的数据被读出;读出的数据经解码电路15解码后,存储在工作RAM 12上。然后通过改变光拾取装置上的焦距,其它被预设了长度的并记录在第二层L2的数据片段被读出,读出的数据经解码电路15解码后,也存储在工作RAM 12上。控制器CPU 10读出存储在工作RAM 17上的数据,然后控制器CPU 10把它们彼此组合。此合成数据即是内容数据。
Claims (2)
1.一种从介质再现数据的设备,该介质具有在对应于第一记录格式的记录域中记录的加密的数据和用以解密所述加密的数据的第一密钥数据,所述第一密钥数据记录在对应于不同于所述第一记录格式的第二记录格式的另一记录域中,所述设备包括:
读取所述加密的数据和所述第一密钥数据的读取单元;
从所述设备的外部输入第二密钥数据的外部输入单元;
采用所述第一密钥数据产生解码密钥数据,如果不允许所述读取单元读取所述第一密钥数据,采用所述第二密钥数据产生解码密钥数据,然后根据所述解码密钥数据将所述加密的数据解码的解码单元;
再现所述解码的数据的再现单元。
2.一种从介质再现数据的方法,该介质具有在对应于第一记录格式的记录域中记录的加密的数据和用以解密所述加密的数据的第一密钥数据,所述第一密钥数据记录在对应于不同于所述第一记录格式的第二记录格式的另一记录域中,所述方法包括以下步骤:
读取所述加密的数据和所述第一密钥数据;
从外部输入第二密钥数据;
采用所述第一密钥数据产生解码密钥数据,如果不允许所述读取单元读取所述第一密钥数据,采用所述第二密钥数据产生解码密钥数据,然后根据所述解码密钥数据将所述加密的数据解码;和
再现所述解码的数据。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP166645/1995 | 1995-06-30 | ||
JP166645/95 | 1995-06-30 | ||
JP7166645A JPH0917119A (ja) | 1995-06-30 | 1995-06-30 | データ記録媒体、データ記録方法及びデータ再生方法 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB961110694A Division CN1148735C (zh) | 1995-06-30 | 1996-06-30 | 光盘数据记录方法和设备以及光盘数据再现方法和设备 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1495775A CN1495775A (zh) | 2004-05-12 |
CN100550154C true CN100550154C (zh) | 2009-10-14 |
Family
ID=15835116
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB961110694A Expired - Fee Related CN1148735C (zh) | 1995-06-30 | 1996-06-30 | 光盘数据记录方法和设备以及光盘数据再现方法和设备 |
CNB2003101014022A Expired - Fee Related CN100550154C (zh) | 1995-06-30 | 1996-06-30 | 记录介质的数据记录方法 |
CN02154879A Pending CN1426061A (zh) | 1995-06-30 | 2002-12-04 | 数据记录介质 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB961110694A Expired - Fee Related CN1148735C (zh) | 1995-06-30 | 1996-06-30 | 光盘数据记录方法和设备以及光盘数据再现方法和设备 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN02154879A Pending CN1426061A (zh) | 1995-06-30 | 2002-12-04 | 数据记录介质 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5802174A (zh) |
EP (5) | EP0751517B1 (zh) |
JP (1) | JPH0917119A (zh) |
KR (2) | KR100438225B1 (zh) |
CN (3) | CN1148735C (zh) |
DE (3) | DE69626724T2 (zh) |
TW (1) | TW308687B (zh) |
Families Citing this family (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6980653B1 (en) | 1995-07-21 | 2005-12-27 | Sony Corporation | Signal reproducing/recording/transmitting method and apparatus and signal record medium |
US7065211B1 (en) * | 1995-07-21 | 2006-06-20 | Sony Corporation | Signal reproducing/recording/transmitting method and apparatus and signal recording medium |
JP3252706B2 (ja) * | 1995-07-21 | 2002-02-04 | ソニー株式会社 | 映像信号再生方法及び装置、並びに信号伝送方法及び装置 |
JP3467964B2 (ja) * | 1995-08-10 | 2003-11-17 | ソニー株式会社 | データ記録装置及び方法、データ再生装置及び方法、記録媒体、並びにデータ伝送方法 |
WO1997014147A1 (fr) * | 1995-10-09 | 1997-04-17 | Matsushita Electric Industrial Co., Ltd. | Support, appareil et procede d'enregistrement d'informations |
US5883958A (en) * | 1996-04-01 | 1999-03-16 | Sony Corporation | Method and device for data decryption, a method and device for device identification, a recording medium, a method of disk production, and a method and apparatus for disk recording |
JPH10106146A (ja) * | 1996-09-25 | 1998-04-24 | Victor Co Of Japan Ltd | ディスクの記録再生方法及び再生装置 |
JP3963037B2 (ja) * | 1997-03-19 | 2007-08-22 | ソニー株式会社 | 記録装置及び再生装置 |
JPH1131357A (ja) | 1997-07-08 | 1999-02-02 | Pioneer Electron Corp | 情報データの記録方法 |
AU1060499A (en) * | 1997-08-28 | 1999-03-16 | Syndata Technologies, Inc. | Encryption system for secure data |
US6587948B1 (en) * | 1998-02-13 | 2003-07-01 | Sony Corporation | Recording apparatus, recording medium, playback apparatus, recording method and playback method |
US6205112B1 (en) * | 1998-02-17 | 2001-03-20 | Gateway, Inc. | Multipurpose optical disc having different formats on opposing sides |
EP0940810A1 (en) * | 1998-03-04 | 1999-09-08 | Kichinosuke Nagashio | Recording medium with copyright protection features |
ATE329352T1 (de) * | 1998-08-10 | 2006-06-15 | Ovd Kinegram Ag | Beugungsoptische sicherheitsvorrichtung auf kompaktdisks |
CN1477630A (zh) * | 1998-09-21 | 2004-02-25 | 日本胜利株式会社 | 信息记录方法与装置、重放装置、及信息保护方法 |
DE69925087T2 (de) * | 1998-09-22 | 2006-02-02 | Matsushita Electric Industrial Co., Ltd., Kadoma | Optische Platte, Verfahren zur Wiedergabe zusätzlicher Daten aus einer optischen Platte, Wiedergabegerät für optische Platte sowie Aufzeichnungs- und Wiedergabegerät für optische Platte |
JP2000149415A (ja) | 1998-11-02 | 2000-05-30 | Matsushita Electric Ind Co Ltd | 光ディスク、光ディスクの再生装置及び複製装置並びに光ディスクの違法使用防止方法 |
US6563793B1 (en) | 1998-11-25 | 2003-05-13 | Enron Warpspeed Services, Inc. | Method and apparatus for providing guaranteed quality/class of service within and across networks using existing reservation protocols and frame formats |
US6590846B2 (en) | 1999-05-21 | 2003-07-08 | Matsushita Electric Industrial Co., Ltd. | Recordable optical disk |
EP1137003A4 (en) | 1999-08-18 | 2003-07-23 | Sony Corp | OPTICAL RECORDING MEDIUM, REPRODUCING METHOD, AND DEVICE THEREFOR |
JP4300642B2 (ja) * | 1999-08-18 | 2009-07-22 | ソニー株式会社 | 記録媒体及び記録媒体の再生装置並びに再生方法 |
JP4727780B2 (ja) * | 1999-09-03 | 2011-07-20 | ソニー株式会社 | 再生装置、記録装置 |
JP4032203B2 (ja) | 1999-10-25 | 2008-01-16 | ソニー株式会社 | 情報記録媒体の再生方法、再生装置、情報記録媒体の管理方法 |
CN1516167A (zh) * | 1999-11-16 | 2004-07-28 | ������������ʽ���� | 记录媒体 |
AU2004200930B2 (en) * | 1999-11-16 | 2006-08-17 | Sony Corporation | Recording medium, data recording method and apparatus |
JP2001266480A (ja) * | 2000-03-22 | 2001-09-28 | Sony Computer Entertainment Inc | 暗号化された音声データを記録した記録媒体、情報処理装置 |
CN100592410C (zh) * | 2000-07-07 | 2010-02-24 | 皇家菲利浦电子有限公司 | 记录载体、回放装置和包括记录载体和回放装置的信息系统 |
US20070143863A1 (en) * | 2000-08-16 | 2007-06-21 | Matsushita Electric Industrial Co., Ltd. | Copy-resistant read-only digital optical disc and adaptable player |
JPWO2002086873A1 (ja) * | 2001-04-17 | 2004-08-12 | 松下電器産業株式会社 | 光ディスクおよびそれを用いた情報記録/再生方法および情報記録/再生装置 |
RU2297677C2 (ru) * | 2001-05-22 | 2007-04-20 | Конинклейке Филипс Электроникс Н.В. | Носитель записи для хранения цифрового продукта |
JP3861625B2 (ja) * | 2001-06-13 | 2006-12-20 | ソニー株式会社 | データ転送システム、データ転送装置、記録装置、データ転送方法 |
HU0104183D0 (en) * | 2001-10-09 | 2001-12-28 | Optilink Ab | Method and apparatus for the engryption of data |
WO2003034227A2 (en) * | 2001-10-12 | 2003-04-24 | Koninklijke Philips Electronics N.V. | Apparatus and method for reading or writing user data |
JP2003233949A (ja) | 2001-12-06 | 2003-08-22 | Ricoh Co Ltd | 書き込み可能型光ディスク、光ディスク書き込み装置、媒体判定用プログラム、記録媒体、プログラム読み取り方法、及び情報処理システム |
JP2004087063A (ja) * | 2002-07-02 | 2004-03-18 | Sony Corp | データ記録媒体、媒体情報記録方法、媒体情報記録装置、媒体情報再生方法、媒体情報再生装置、情報サービス方法、情報サービスシステム |
CA2487406C (en) | 2003-01-23 | 2012-02-21 | Lg Electronics Inc. | Recording medium with copy protection information formed in intermittent or alternate wobbled pits and apparatus and methods for forming, recording, and reproducing the recording medium |
CN101188116A (zh) | 2003-01-23 | 2008-05-28 | Lg电子株式会社 | 记录介质及其形成、记录、再现和再现控制的装置和方法 |
KR100952949B1 (ko) * | 2003-01-24 | 2010-04-15 | 엘지전자 주식회사 | 고밀도 광디스크의 복사 방지 정보 관리방법 |
CN1777940A (zh) * | 2003-04-23 | 2006-05-24 | 皇家飞利浦电子股份有限公司 | 防拷贝保护的数据载体 |
EP1661134A2 (en) * | 2003-08-28 | 2006-05-31 | Koninklijke Philips Electronics N.V. | Multi layer record carrier comprising compatibility information, and method for recording such compatibility information on a record carrier. |
US20050071494A1 (en) * | 2003-09-30 | 2005-03-31 | Rundquist William A. | Method and apparatus for providing fixed bandwidth communications over a local area network |
US20050185548A1 (en) * | 2004-02-19 | 2005-08-25 | Weirauch Charles R. | Information access control for optical media |
US20060250912A1 (en) * | 2005-05-09 | 2006-11-09 | Pratt Thomas L | System and method for multi-laser optical medium |
JP4425311B2 (ja) * | 2005-07-20 | 2010-03-03 | パイオニア株式会社 | 記録ディスク |
WO2007015298A1 (ja) * | 2005-08-03 | 2007-02-08 | Fujitsu Limited | 光情報記録再生装置および光情報記録媒体 |
EP1952399A2 (en) * | 2005-11-14 | 2008-08-06 | Koninklijke Philips Electronics N.V. | Hybrid optical disc |
WO2007116401A1 (en) * | 2006-04-10 | 2007-10-18 | Mempile Inc. | Secured optical information carrier, and data encryption method and apparatus for recording data in the optical information carrier |
FR2915435B1 (fr) * | 2007-04-25 | 2009-08-07 | Alstom Transport Sa | Systeme, sous-station et procede de recuperation de l'energie de freinage de vehicules ferroviaires, vehicules ferroviaires pour ce systeme. |
JP4591487B2 (ja) * | 2007-08-24 | 2010-12-01 | トヨタ自動車株式会社 | ハイブリッド車両、ハイブリッド車両の告知方法およびその告知方法をコンピュータに実行させるためのプログラムを記録したコンピュータ読取可能な記録媒体 |
JP2011023051A (ja) * | 2009-07-13 | 2011-02-03 | Sony Corp | 情報記録装置、情報再生装置、記録媒体製造装置、情報記録媒体、および方法、並びにプログラム |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6084686A (ja) * | 1983-10-17 | 1985-05-14 | Toshiba Corp | 情報記録媒体の記録方式 |
JPS6095745A (ja) * | 1983-10-31 | 1985-05-29 | Hikari Yokoekawa | 複数記録面のデイスクと装置 |
US4873679A (en) * | 1986-12-25 | 1989-10-10 | Matsushita Electric Industrial Co., Ltd. | Optical information recording disk and optical information recording disk apparatus |
US5150339A (en) * | 1989-04-24 | 1992-09-22 | Hitachi, Ltd. | Optical disk medium and its application method and system |
JPH0357091A (ja) * | 1989-07-26 | 1991-03-12 | N T T Data Tsushin Kk | Icカード内の破損データ復元装置 |
US5303225A (en) * | 1989-10-30 | 1994-04-12 | Matsushita Electrical Industrial Co., Ltd. | Multi-layered optical disk with track and layer identification |
JP2940208B2 (ja) * | 1991-04-12 | 1999-08-25 | 松下電器産業株式会社 | 記録再生方法、および記録再生装置、光ディスク |
EP0545472B1 (en) * | 1991-12-02 | 1999-10-20 | Koninklijke Philips Electronics N.V. | Closed information system with physical copy protection |
JP2942837B2 (ja) * | 1992-01-31 | 1999-08-30 | 株式会社セガ・エンタープライゼス | セキュリティチェック方法及びゲーム装置並びにそれらに用いられる情報記憶媒体 |
JPH05289612A (ja) * | 1992-04-06 | 1993-11-05 | Nhk Spring Co Ltd | 情報記録システム及び情報通信システム |
SG144685A1 (en) * | 1993-06-08 | 2008-08-28 | Matsushita Electric Ind Co Ltd | Optical disk, and information recording/reproduction apparatus |
JP2853724B2 (ja) * | 1993-06-30 | 1999-02-03 | 日本ビクター株式会社 | 光記録媒体、その製造方法及びその再生装置 |
EP0634741B1 (en) * | 1993-07-16 | 2002-11-27 | Fujitsu Limited | Recording medium, method of controlling same, and system utilizing electronic publications |
US5596639A (en) * | 1993-07-26 | 1997-01-21 | Elonex Ip Holdings Ltd. | Cd-prom |
WO1995003655A1 (en) * | 1993-07-26 | 1995-02-02 | Oakleigh Systems, Inc. | Cd prom encryption system |
US5400319A (en) * | 1993-10-06 | 1995-03-21 | Digital Audio Disc Corporation | CD-ROM with machine-readable I.D. code |
JPH08339574A (ja) * | 1995-04-11 | 1996-12-24 | Sony Corp | 多層光ディスク |
-
1995
- 1995-06-30 JP JP7166645A patent/JPH0917119A/ja active Pending
-
1996
- 1996-06-25 TW TW085107643A patent/TW308687B/zh not_active IP Right Cessation
- 1996-06-27 EP EP96304740A patent/EP0751517B1/en not_active Expired - Lifetime
- 1996-06-27 DE DE69626724T patent/DE69626724T2/de not_active Expired - Lifetime
- 1996-06-27 DE DE69635312T patent/DE69635312T2/de not_active Expired - Lifetime
- 1996-06-27 EP EP00112372A patent/EP1033713A3/en not_active Withdrawn
- 1996-06-27 EP EP00112373A patent/EP1033714B1/en not_active Expired - Lifetime
- 1996-06-27 US US08/670,535 patent/US5802174A/en not_active Expired - Lifetime
- 1996-06-27 EP EP00112370A patent/EP1033712B1/en not_active Expired - Lifetime
- 1996-06-27 DE DE69638102T patent/DE69638102D1/de not_active Expired - Lifetime
- 1996-06-27 EP EP02075810A patent/EP1229537B1/en not_active Expired - Lifetime
- 1996-06-29 KR KR1019960026979A patent/KR100438225B1/ko not_active IP Right Cessation
- 1996-06-30 CN CNB961110694A patent/CN1148735C/zh not_active Expired - Fee Related
- 1996-06-30 CN CNB2003101014022A patent/CN100550154C/zh not_active Expired - Fee Related
-
2002
- 2002-12-04 CN CN02154879A patent/CN1426061A/zh active Pending
-
2003
- 2003-11-29 KR KR1020030085971A patent/KR100464471B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1229537A2 (en) | 2002-08-07 |
CN1426061A (zh) | 2003-06-25 |
EP0751517A2 (en) | 1997-01-02 |
EP1033713A3 (en) | 2004-10-13 |
CN1146044A (zh) | 1997-03-26 |
DE69635312D1 (de) | 2006-03-02 |
EP1229537B1 (en) | 2009-12-16 |
EP0751517B1 (en) | 2003-03-19 |
EP1033714A3 (en) | 2004-10-13 |
EP1033712B1 (en) | 2011-12-28 |
DE69626724T2 (de) | 2004-02-05 |
EP1033714B1 (en) | 2005-10-19 |
DE69626724D1 (de) | 2003-04-24 |
TW308687B (zh) | 1997-06-21 |
EP1033712A2 (en) | 2000-09-06 |
DE69638102D1 (de) | 2010-01-28 |
KR100438225B1 (ko) | 2004-08-09 |
EP1033712A3 (en) | 2004-10-13 |
EP1033713A2 (en) | 2000-09-06 |
DE69635312T2 (de) | 2006-07-20 |
JPH0917119A (ja) | 1997-01-17 |
CN1495775A (zh) | 2004-05-12 |
EP0751517A3 (en) | 1998-02-25 |
KR100464471B1 (ko) | 2005-01-03 |
CN1148735C (zh) | 2004-05-05 |
EP1033714A2 (en) | 2000-09-06 |
KR970003175A (ko) | 1997-01-28 |
EP1229537A3 (en) | 2007-11-28 |
US5802174A (en) | 1998-09-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100550154C (zh) | 记录介质的数据记录方法 | |
CN1192379C (zh) | 用于记录信息拷贝保护的系统 | |
US5841861A (en) | Optical recording medium and reproducing apparatus for optical recording medium | |
JP3503767B2 (ja) | 光記録媒体 | |
JP2003091927A (ja) | 記録媒体、記録媒体の再生装置及び再生方法、記録媒体の記録装置及び記録方法、並びにデータ出力方法 | |
CN100527243C (zh) | 记录方法和装置、以及再现方法 | |
JPWO2004029943A1 (ja) | 光記録媒体及び光記録媒体の記録装置 | |
KR20020040587A (ko) | 정보 기록·재생 방법, 기록·재생 장치, 기록 매체, 및그 기록 매체의 제조 방법 | |
US20060120685A1 (en) | Data recording method and device, data recording medium, data reproduction method and device, data transmission method and device, and data reception method and device | |
US7151733B2 (en) | Data recording medium, data recording method and apparatus, and data reproducing method and apparatus | |
JP3485073B2 (ja) | 光記録媒体の製造方法 | |
JP2008159117A (ja) | データ記録媒体 | |
JP2002184098A (ja) | 記録媒体、記録装置、再生装置及び記録再生方法 | |
JP2004164842A (ja) | 記録媒体、記録方法及び再生方法、並びに記録装置及び再生装置 | |
JP2001052430A (ja) | 光ディスク識別データの付加方法及びその方法を用いて作製された光ディスクの再生方法とコピー方法 | |
JP2001028130A (ja) | 光記録媒体 | |
WO2009069441A1 (ja) | 光情報記録媒体及び光情報記録媒体への情報記録方法並びに光情報記録装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20150630 |
|
EXPY | Termination of patent right or utility model |