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41. 发明专利

JP2004030701A Disk recording medium, rectangular recording medium, and method and device for recording data 有权
公开(公告)号：JP2004030701A
公开(公告)日：2004-01-29
申请号：JP2002023479
申请日：2002-01-31
申请人： Sony Corp , ソニー株式会社
发明人： SAKO YOICHIRO , INOGUCHI TATSUYA
IPC分类号： G11B7/007 , G11B20/00 , G11B20/10 , G11B20/12 , G11B20/18 , G11B27/034 , G11B27/30
CPC分类号： G11B20/1217 , G11B20/00086 , G11B20/0071 , G11B20/1252 , G11B20/1803 , G11B27/034 , G11B27/3063 , G11B2220/20 , G11B2220/2545 , G11B2220/2583
摘要： PROBLEM TO BE SOLVED: To increase a resistance to the damage of a disk, a burst error or the like by dispersing a plurality of data written in a superposed manner as much as possible.
SOLUTION: A payload O is recorded as a header on the head of a UDI area. When the payload O and other payloads are recorded, these are recorded five fold for countermeasure against errors. After the payload O, other payloads such as a payload 1 is recorded. When the five-fold recording is carried out, the payloads of the same number are recorded five fold together. The UDI is recorded from a position 1 second after start time S. The payloads are arranged in positions at 12-frame intervals. Thus, five data written in a superposed manner are not arrayed in the diameter direction of the disk but widely dispersed on a track to increase an error resistance. A data interval is set to an optimum value by the number of times of multiple writing, linear velocity, recording position on the disk or the like.
COPYRIGHT: (C)2004,JPO

42. 发明专利

JP2003338126A Recording medium, recording method, recorder, reproduction method, reproduction device, transmission method, and transmitter for digital data 审中-公开
标题翻译：记录介质，记录方法，记录器，再现方法，复制设备，传输方法和用于数字数据的发送器
公开(公告)号：JP2003338126A
公开(公告)日：2003-11-28
申请号：JP2002145791
申请日：2002-05-21
申请人： Sony Corp , ソニー株式会社
发明人： INOGUCHI TATSUYA , SAKO YOICHIRO , FURUKAWA SHUNSUKE , KIHARA TAKASHI
IPC分类号： G11B20/10 , G11B20/12 , G11B20/18 , H03M13/15 , H03M13/29
摘要： PROBLEM TO BE SOLVED: To provide a CD which is substantially prohibited in copying. SOLUTION: A part of data is encoded by a CIRC (cross interleave Reed- solomon code) 4 system and recorded in a CD. The rest of the data is encoded by a CIRC7 system and recorded in the CD. The rest of the data is recorded in the CD with such a data array as can be decoded by first decoding and second decoding complementary to encoding by the CIRC4 system and encoding by the CIRC7 system respectively. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供基本上禁止复制的CD。解决方案：一部分数据由CIRC（交叉交织独特号码）4系统编码并记录在CD中。其余数据由CIRC7系统编码并记录在CD中。数据的其余部分被记录在CD中，该数据阵列可以通过第一解码和第二解码来解码，分别由CIRC4系统与CIRC4系统的编码相辅相和编码。版权所有（C）2004，JPO

43. 发明专利

JP2003303136A Data reproduction method and device, and data record reproduction method and device 审中-公开
标题翻译：数据再现方法和装置，以及数据记录再现方法和装置
公开(公告)号：JP2003303136A
公开(公告)日：2003-10-24
申请号：JP2002109563
申请日：2002-04-11
申请人： Sony Corp , ソニー株式会社
发明人： SAKO YOICHIRO , KOJIMA YUICHI , INOGUCHI TATSUYA , FURUKAWA SHUNSUKE , HASEGAWA JUNICHI
IPC分类号： G06F12/14 , G06F21/24 , H04L9/08
摘要： PROBLEM TO BE SOLVED: To erase key data after reproduction of data for securing the security. SOLUTION: This data reproduction device comprises a demodulation circuit 38 fed with data reproduced from a recording medium 10 and demodulating the encoded data, a RAM 34 storing the key data for interpreting the encoded data, an error correction decoding circuit 40 for the encoded data, a code interpreting circuit 42 fed with the encoded data and their key data, a decoder 44 for a sub-code, and a control part 35 for monitoring the outputs of the decoder. The key data stored in the RAM are erased by a detection output of time information showing the outermost circumference included in the sub-code. Because the key data are erased after reproduction of contents, the contents cannot be decoded and used again after the decoding, thus providing the data record reproduction system with the strong security. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：在重新生成用于确保安全性的数据之后擦除密钥数据。解决方案：该数据再现装置包括：解调电路38，馈送从记录介质10再现的数据并解调编码数据;存储用于解码编码数据的密钥数据的RAM34;纠错解码电路40，用于编码数据，馈送有编码数据的码解码电路42及其密钥数据，用于子码的解码器44，以及用于监视解码器的输出的控制部分35。存储在RAM中的关键数据通过表示子代码中包含的最外周的时间信息的检测输出被擦除。由于密钥数据在内容再现之后被擦除，所以在解码之后内容不能被解码和再次使用，从而为数据记录再现系统提供了很强的安全性。版权所有（C）2004，JPO

44. 发明专利

JP2003281823A Recording medium, data recording method, data recorder, data reproducing method and data reproducing device 有权
标题翻译：记录介质，数据记录方法，数据记录器，数据再现方法和数据再现装置
公开(公告)号：JP2003281823A
公开(公告)日：2003-10-03
申请号：JP2002084045
申请日：2002-03-25
申请人： Sony Corp , ソニー株式会社
发明人： SAKO YOICHIRO , INOGUCHI TATSUYA
IPC分类号： G11B20/10 , G11B7/004 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To attain the security of disk contents. SOLUTION: A data reproducing device comprises a subcode decoder 74 to which a reproduced signal is supplied from a recording medium 10, a plurality of storing means 76 and 78 for generating a plurality of polynominals used at decode processing, a memory means 84 stored with the insertion address of secret data, and a control part 82 for controlling decode processing of subcode data. A polynominal G 1 (x) used in decoding data except the secret data is different from a polynominal G 2 (x) used in decoding the secret data. Only when the polynominal G 2 (x) is used, the secret data can be reproduced, so that information on the secret data can be acquired. For example, in the case of key information for contents encryption, contents can be decoded by the key information. Thus, the security of the contents recorded on the recording medium can be ensured. In the case of the polynominal G 1 (x), since an error appears, the secret data can not be obtained. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了获得磁盘内容的安全性。解决方案：数据再现装置包括从记录介质10向其提供再现信号的子码解码器74，用于产生在解码处理中使用的多个多项式的多个存储装置76和78，存储装置84 与秘密数据的插入地址一起存储，以及用于控制子码数据的解码处理的控制部分82。用于对除秘密数据之外的数据进行解码的多项式G 1（x）不同于在秘密数据的解码中使用的多项式G 2（SB）。仅当使用多项式G 2 （x）时，可以再现秘密数据，从而可以获取关于秘密数据的信息。例如，在用于内容加密的密钥信息的情况下，可以通过密钥信息对内容进行解码。因此，可以确保记录在记录介质上的内容的安全性。在多项式G 1 （x）的情况下，由于出现错误，所以不能获得秘密数据。版权所有（C）2004，JPO

45. 发明专利

JP2003249010A METHOD AND PROGRAM FOR CONTROLLING DISK ACCESS, AND RECORDING MEDIUM 审中-公开
公开(公告)号：JP2003249010A
公开(公告)日：2003-09-05
申请号：JP2002044566
申请日：2002-02-21
申请人： SONY CORP
发明人： INOGUCHI TATSUYA , KANEDA YORIAKI , IHASHI TAKAO , FURUKAWA SHUNSUKE , YAMANISHI TAKASHI , SAKO YOICHIRO
IPC分类号： G11B7/0037 , G11B7/005 , G11B7/007 , G11B19/12 , G11B20/00 , G11B20/10 , G11B27/30 , G11B27/32 , G11B27/36
摘要： PROBLEM TO BE SOLVED: To protect a copyright of an original disk by discriminating the type of a disk such as a CD/CD-ROM or a CD-R/CD-RW. SOLUTION: Information intrinsic to a writable disk is read from a disk loaded on a drive 11 by using software 14 in a PC 12 through an interface 13. When effective data are read, the disk is discriminated not to be a disk manufactured by a stamper. Similarly, when conditions regarding the recording of TOC information are read from the disk and if the read information is intrinsic to the writable disk, the disk is discriminated not to be a disk manufactured by the stamper. When these discrimination means discriminate that the disk is not manufactured by the stamper, it is decided that the disk is not an original disk, and the reading of disk information thereafter is limited or the like to protect the copyright of the original disk. COPYRIGHT: (C)2003,JPO

46. 发明专利

JP2003228910A DATA RECORDING MEDIUM, METHOD AND APPARATUS FOR DATA RECORDING, METHOD AND APPARATUS FOR DATA REPRODUCTION, AND DATA TRANSMITTING METHOD AND DATA RECEIVING METHOD 审中-公开
公开(公告)号：JP2003228910A
公开(公告)日：2003-08-15
申请号：JP2002024496
申请日：2002-01-31
申请人： SONY CORP
发明人： INOGUCHI TATSUYA , SAKO YOICHIRO , FURUKAWA SHUNSUKE , KIHARA TAKASHI
IPC分类号： G11B20/10 , G10L11/00 , G10L19/00 , G11B20/00 , G11B20/12 , G11B20/18 , H03M13/27 , H03M13/29 , H04L9/08
摘要： PROBLEM TO BE SOLVED: To enhance the secrecy of a cipher key by reducing influence on an existing apparatus and recording the cipher key together with ciphered data. SOLUTION: An area AR2 has its error corrected by a CIRC7 system and includes a data pattern which can be corrected by both the CIRC7 system and a CIRC4. Data A, dummy data,... can be corrected by both the systems. Other parts are detected as error-uncorrectable parts when decoded by the CIRC4 system. The data which can be corrected by both the systems are data which are so arrayed that specified data are repeated as units in a vertical direction (C1 series). When error corrections are made by the CIRC4 system, data D corresponding to whether error corrections can be made are obtained. The cipher key CIRC7-key is generated with f 1 (A, B, C, D). The data ciphered with this cipher key are recorded. COPYRIGHT: (C)2003,JPO

47. 发明专利

JP2003196920A RECORDING MEDIUM, RECORDING METHOD AND DEVICE AND REPRODUCING METHOD 审中-公开
公开(公告)号：JP2003196920A
公开(公告)日：2003-07-11
申请号：JP2001389749
申请日：2001-12-21
申请人： SONY CORP
发明人： SAKO YOICHIRO , FURUKAWA SHUNSUKE , INOGUCHI TATSUYA
IPC分类号： G06F12/14 , G06F21/10 , G06F21/62 , G11B7/007 , G11B20/00 , G11B20/10 , G11B20/12 , G11B23/28 , G11B27/00 , G11B27/02 , G11B27/034 , H04N5/85 , H04N5/91
摘要： PROBLEM TO BE SOLVED: To enable even an existing reproducing device which does not deal with encrypted content data to perform decryption and to surely provide protection of a copyright. SOLUTION: Two kinds of key lockers stored with content key information and copyright management information of respective pieces of the content data are prepared. One thereof is recorded at a lead-in which is a recording position of high secrecy and the other is recorded in a program region in such a manner that the data can be reproduced even by an ordinary drive not dealing with the novel disk although the secrecy is lower. The copyright management information and content key of the key locker recorded in the lead-in enhance additive values by increasing the number of the contents that can be reproduced and relieving the limitation of the copyright as compared with the content key and management information of the key locker of the program region. As a result, the decryption can be performed and the protection of the copyright can be surely provided even by the existing reproducing device which does not deal with the encrypted content data. COPYRIGHT: (C)2003,JPO

48. 发明专利

JP2003141821A DATA RECORDING MEDIUM, DATA RECORDING DEVICE AND METHOD AND DATA REPRODUCING DEVICE AND METHOD 审中-公开
公开(公告)号：JP2003141821A
公开(公告)日：2003-05-16
申请号：JP2001335406
申请日：2001-10-31
申请人： SONY CORP
发明人： SAKO YOICHIRO , SAITO AKINARI , USUI YOSHINOBU , KANEDA YORIAKI , NAKAGAWA TOMIHIRO , INOGUCHI TATSUYA
IPC分类号： G11B20/12 , G11B7/004 , G11B7/0055 , G11B7/007 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To record additional information to an area where data are already recorded while compatibility with an existing format is being kept. SOLUTION: A predetermined area of an optical disk exclusively for reproduction wherein contents data and the like are recorded by a rugged pit pattern is irradiated with a light beam having high output to melt a reflection film, a pit is imitatively formed and discrimination data or the like are added.

49. 发明专利

JP2002324348A DATA RECORDING MEDIUM, DATA RECORDING DEVICE AND METHOD, AND DATA REPRODUCING DEVICE AND METHOD 失效
公开(公告)号：JP2002324348A
公开(公告)日：2002-11-08
申请号：JP2001128194
申请日：2001-04-25
申请人： SONY CORP
发明人： FURUKAWA SHUNSUKE , SAKO YOICHIRO , INOGUCHI TATSUYA
IPC分类号： G06F12/14 , G06F21/24 , G11B20/10 , G11B20/12 , H04L9/08
摘要： PROBLEM TO BE SOLVED: To provide a data recording medium which can prevent non-serial digital data recorded in different areas from being illegally copied. SOLUTION: In this optical disk 1, new data for reproducing coded data recorded in a twohold density area 5 is generated using digital data recorded in its inner-circumferential area and digital data recorded in its outer- circumferential area. This newly generated data are the information for decoding the coded data. It can be said that this optical disk 1 has two-area in which its inner-circumferential area is physically divided from its outer-circumferential area via an interface. Concretely, this optical disk 1 generates decoding information for reproducing the coded data by a combination of the additional data of content data recorded in the inner-circumferential area and the additional data of content data recorded in the outer-circumferential area.

50. 发明专利

JP2002074849A DATA RECORDING MEDIUM, DATA RECORDING METHOD AND DEVICE, AND ACCESSING METHOD AND DEVICE 失效
公开(公告)号：JP2002074849A
公开(公告)日：2002-03-15
申请号：JP2000257996
申请日：2000-08-28
申请人： SONY CORP
发明人： SAKO YOICHIRO , INOGUCHI TATSUYA , TOYAMA KATSUMI
IPC分类号： G11B7/007 , G11B7/085 , G11B19/12 , G11B20/10 , G11B20/12 , G11B27/034 , G11B27/10 , G11B27/30 , G11B27/32
摘要： PROBLEM TO BE SOLVED: To smoothly perform access extending over two areas. SOLUTION: Data are recorded on a first part PA1 in the same format as that in a CD(compact disk). Compressed digital data are recorded in double density on a second part PA2 in the format of a CD-ROM(compact disk read- only memory). Addresses of the first session including the first part are made to be minute/second frames and addresses of a second session including the second part are made to be binary notation. In a step S1, whether a session is the first session or not is decided. When the session is the first session, the generation of normal addresses is started (a step S2). When it is decided that the session is not the first session, an amount of gap is calculated in a step 3. Then, in a step 4, the start address of the second session is generated from (an end address + the amount of gap). In a step 5, whether the second session is completed or not is decided. The generation of addresses of the second session is continuously performed until the second session is completed. When the second session is completed, the generation of addresses is completed.

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