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1. 发明专利

JP2010129143A Information transmitting system 有权
标题翻译：信息发送系统
公开(公告)号：JP2010129143A
公开(公告)日：2010-06-10
申请号：JP2008304832
申请日：2008-11-28
申请人： Toshiba Corp , 株式会社東芝
发明人： NAGAI YUJI , NODA CHOSAKU , WATABE KAZUO , OGAWA AKITO , KURODA KAZUTO , YOSHIDA NOBUHISA , NAITO NOBUMASA , MORISHITA NAOKI , NAKAMURA NAOMASA , OSAWA HIDEAKI , KANESHIGE TOSHIHIKO , SATO YUJI , YAMADA HISASHI
IPC分类号： G11B20/10
CPC分类号： G11B20/14 , G11B20/0021 , G11B20/00579 , G11B20/00884 , G11B20/1426 , G11B2020/1457
摘要： PROBLEM TO BE SOLVED: To suppress an influence on recording, reproduction and transmission of a primary information signal and ensure the sufficient recording, reproduction and transmission performance of secondary information when the secondary information is superposed on the primary information for recording, reproduction and transmission.
SOLUTION: A signal-processing system includes: a coding circuit (12) which encodes the primary information, a coding circuit (22) which encodes the secondary information, a modulation circuit (14) which modulates a carrier wave on the basis of the encoded primary information, a duplication circuit (24) which duplicates the output of the coding circuit (22) to generate a plurality of encoded secondary information units, and a modulation circuit (16) which amplitude-modulates the output of the modulation circuit (14) on the basis of each of the plurality of encoded secondary information units. In this case, the modulation circuit (16) amplitude-modulates the output so that σ/(μ×(2
N )
1/2 ) may be 0.4 or smaller, wherein σ
2 represents the noise electric power of a transmission line or recording medium, N represents the number of the encoded secondary information units, A and B represent modulated signal levels which correspond to the bit 1 and bit 0 of the encoded secondary information units, respectively, and μ represents a level difference between A and B.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了抑制对主信息信号的记录，再现和发送的影响，并且当辅助信息叠加在用于记录，再现的主要信息上时，确保辅助信息的充分的记录，再现和传输性能和传输。解决方案：信号处理系统包括：编码主信息的编码电路（12），对次要信息进行编码的编码电路（22），调制电路（14），基于该调制电路的复制电路（24），其复制所述编码电路（22）的输出以生成多个编码次要信息单元;以及调制电路（16），其对所述调制电路的输出进行幅度调制（14）基于所述多个编码次要信息单元中的每一个。在这种情况下，调制电路（16）对输出进行幅度调制，使得σ/（μ×（2 N ） 1/2 ）可以为0.4以下，其中σ 2 表示传输线或记录介质的噪声功率，N表示编码次要信息单元的数量，A和B表示对应于位1和位0的调制信号电平的编码次级信息单元，μ表示A和B之间的电平差。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2009059466A Content management method, content management device, recording medium, and mutual authentication method 有权
标题翻译：内容管理方法，内容管理装置，记录媒体和相互认证方法
公开(公告)号：JP2009059466A
公开(公告)日：2009-03-19
申请号：JP2008242507
申请日：2008-09-22
申请人： Toshiba Corp , 株式会社東芝
发明人： KAMIBAYASHI TATSU , KATO HIROSHI , YAMADA HISASHI , TOMA HIDEYUKI
IPC分类号： G11B20/10 , G06F21/24 , G11B27/00 , H04N5/765 , H04N5/91 , H04N5/92
摘要： PROBLEM TO BE SOLVED: To provide a content management method managing the number of duplicated contents to be recorded in a recording medium easily and securely. SOLUTION: A content management device performs mutual authentication processing with a recording medium wherein an encoded content and key information necessary for decoding the encoded content are recorded. When the mutual authentication processing is successful, the device obtains common key information shared with the recording medium, generates first data for overwriting the key information stored in the recording medium, transmits first encoded data, which is obtained by encoding the first data using the common key information, to the recording medium. When the device receives second encoded data generated by encoding data in an area where the key information is recorded using the common key information shared with the recording medium from the recording medium, the device decodes the data. When the obtained second data and the first data match, the device confirms that the key information stored in the recording medium has been overwritten by the first data and erased. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种容易且可靠地管理要记录在记录介质中的复制内容的数量的内容管理方法。解决方案：内容管理装置与记录介质进行相互认证处理，其中记录对编码内容进行解码所必需的编码内容和密钥信息。当相互认证处理成功时，设备获得与记录介质共享的共同密钥信息，生成用于重写存储在记录介质中的密钥信息的第一数据，发送通过使用公共数据对第一数据进行编码而获得的第一编码数据关键信息到记录介质。当设备从记录介质接收到使用与记录介质共享的公共密钥信息来记录密钥信息的区域中的数据编码产生的第二编码数据时，该设备解码该数据。当所获得的第二数据和第一数据匹配时，设备确认存储在记录介质中的密钥信息已被第一数据覆盖并被擦除。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008311961A Reproduction apparatus and decoding method 审中-公开
标题翻译：再现装置和解码方法
公开(公告)号：JP2008311961A
公开(公告)日：2008-12-25
申请号：JP2007157918
申请日：2007-06-14
申请人： Toshiba Corp , 株式会社東芝
发明人： HARUKI KOUSUKE , KAMIBAYASHI TATSU , KATO HIROSHI , ISHIHARA ATSUSHI , YAMADA HISASHI , NAKAMURA SEIICHI , UNNO HIROAKI , MIMURA HIDENORI , TOYAMA HARUHIKO
IPC分类号： H04L9/08 , G11B20/10 , G11B27/00 , H04L9/10
摘要： PROBLEM TO BE SOLVED: To provide a reproduction apparatus for securely and flexibly for permitting or prohibiting reproduction of digital content even before a media key block is updated.
SOLUTION: An operation process portion 202 provides an interface for operating a media key precursor, held in an AACS (Advanced Access Content System) module 13, to a script 102. The operation process portion 202 does not pass the value of the media key precursor held in the AACS module 13 to the script 102 and a script engine 14, but performs an operation for the media key precursor according to an instruction for operation transmitted from the script 102 through the script engine 14. In response to an operation instruction to the media key precursor, the operation process portion 202 performs the operation to the media key precursor. Thereby, a media key can be calculated from the media key precursor safely.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使在更新媒体密钥块之前，提供用于允许或禁止数字内容的再现的安全和灵活的再现设备。解决方案：操作处理部分202提供用于操作保存在AACS（高级访问内容系统）模块13中的媒体密钥前体的界面到脚本102.操作处理部分202不通过保存在AACS模块13中的媒体密钥前体到脚本102和脚本引擎14，但是根据从脚本102通过脚本引擎14发送的用于操作的指令执行媒体密钥前体的操作。响应于操作操作处理部分202对媒体密钥前体执行操作。由此，可以从媒体密钥前体安全地计算媒体密钥。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2005339740A Signal generating device, signal reproducing device, recording medium processing device, signal generating method, signal reproducing method and recording medium 审中-公开
标题翻译：信号发生装置，信号再现装置，记录介质处理装置，信号发生方法，信号再现方法和记录介质
公开(公告)号：JP2005339740A
公开(公告)日：2005-12-08
申请号：JP2004160328
申请日：2004-05-28
申请人： Toshiba Corp , 株式会社東芝
发明人： KOJIMA TADASHI , YAMADA HISASHI , KATO HIROSHI
IPC分类号： G06F21/24 , G06F12/14 , G11B20/10 , G11B20/12 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To provide a signal generating device in which an amount of information to be embedded is reduced while specific information is to be embedded into main information and to provide a signal reproducing device, a recording medium processing device, a signal generating method, a signal reproducing method and a recording medium. SOLUTION: Specific information is embedded into a data block which includes a specific information error correction code and main information. In other words, the specific information is embedded into the data block and the specific information error correction code becomes the constituting element of the data block itself. By arranging the specific information error correction code in the main information side and not conducting the embedding, the amount of information to be embedded into the main information is reduced. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种信号生成装置，其中在将特定信息嵌入主信息中时将要嵌入的信息量减少，并且提供信号再现装置，记录介质处理装置，信号生成方法，信号再现方法和记录介质。解决方案：将特定信息嵌入到包含特定信息纠错码和主要信息的数据块中。换句话说，将特定信息嵌入到数据块中，并且特定信息纠错码成为数据块本身的构成要素。通过在主信息侧设置特定的信息纠错码而不进行嵌入，将要嵌入主信息的信息量减少。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2004088540A Method and system for recording and reproducing digital information signal, media drive, method for recording and reproducing the same, recording medium, and program 审中-公开
公开(公告)号：JP2004088540A
公开(公告)日：2004-03-18
申请号：JP2002248175
申请日：2002-08-28
申请人： Toshiba Corp , 株式会社東芝
发明人： KOJIMA TADASHI , YAMADA HISASHI , KATO HIROSHI , KAMIBAYASHI TATSU , MIMURA HIDENORI
IPC分类号： G09C5/00 , H04L9/08
摘要： PROBLEM TO BE SOLVED: To provide a recording and reproducing drive device used in computer environment and to provide system constitution optimal to preventing copying, etc. of a recording medium having information which needs protection of copyright recorded thereon even in a PC system which easily edits information. SOLUTION: By using specific information EK used only in an ODD drive A20 as a key for double encryption of a contents encryption key Enc-TK, a double encrypted encryption key Enc2-TK encrypted by this is recorded in the ECC block of the recording medium. By embedding an encryption key Enc-EK obtained by encrypting the specific information EK into the double encrypted encryption key Enc2-TK by recording by digital watermark. Thus, decryption except by the CDD drive A20 is impossible. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2003272173A Information storage medium, and information recording and reproducing device, and method 审中-公开
标题翻译：信息存储介质以及信息记录和再现装置及方法
公开(公告)号：JP2003272173A
公开(公告)日：2003-09-26
申请号：JP2002072925
申请日：2002-03-15
申请人： Toshiba Corp , 株式会社東芝
发明人： ANDO HIDEO , WATABE KAZUO , SATO YUJI , YAMADA HISASHI
IPC分类号： G11B7/24 , G11B7/0045 , G11B7/007
摘要： PROBLEM TO BE SOLVED: To realize the highest storage capacity for a rewritable optical information storage medium by the combination of the land/groove recording system and the CLV (Constant Linear Velocity) system. SOLUTION: Tracks for recording information of the information storage medium 1 are formed to be in-groove parts 2 and on-groove parts 3, the in- groove parts 2 have a synchronous structure wherein wobbles 2a, 2b on a wall face at both sides of the in-grooves are not deviated in the circulation direction (vertical direction in Figure), and the wobbles on a wall face at both sides of the on-grooves of the on-groove parts 3 have an asynchronous structure. Satisfactory reproduction signals can be obtained from both of the in-groove parts 2 and the on-groove parts 3. COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过陆/沟记录系统和CLV（恒线速度）系统的组合来实现可重写光信息存储介质的最高存储容量。
解决方案：用于记录信息存储介质1的信息的轨道形成为槽内部分2和槽内部分3，槽部分2具有同步结构，其中壁面上的摆动2a，2b 在凹槽的两侧不会在循环方向（图中的垂直方向）上偏离，并且在槽部3的槽的两侧的壁面上的摆动具有异步结构。可以从凹槽部分2和凹槽部分3中获得令人满意的再现信号。版权所有（C）2003，JPO

7. 发明专利

JP2007305173A Information storage medium, information reproducing method, and information reproducing device 审中-公开
标题翻译：信息存储介质，信息再现方法和信息再现设备
公开(公告)号：JP2007305173A
公开(公告)日：2007-11-22
申请号：JP2006129481
申请日：2006-05-08
申请人： Toshiba Corp , 株式会社東芝
发明人： ANDO HIDEO , YAMADA HISASHI
IPC分类号： G11B27/00 , G06F9/445 , G11B20/10
CPC分类号： H04N5/76 , H04N5/781 , H04N5/85 , H04N5/907 , H04N5/913 , H04N9/8042 , H04N9/8063 , H04N9/8205 , H04N9/8211 , H04N9/8227 , H04N9/8233 , H04N9/8715 , H04N21/42204 , H04N21/4316 , H04N21/4405 , H04N21/4623 , H04N21/47 , H04N21/478 , H04N2005/91364
摘要： PROBLEM TO BE SOLVED: To provide an information storage medium, an information reproducing method, and an information reproducing device, which materialize efficient use of a drive software. SOLUTION: An information reproducing device 3 reads management information indicating a reproducing procedures of video information or sound information and screen information from the information storage medium 1, obtains drive software for realizing a specific function required when reproduction is performed based on the management information, and performs reproduction using the drive software. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供实现驱动软件的有效使用的信息存储介质，信息再现方法和信息再现装置。解决方案：信息再现装置3从信息存储介质1读取指示视频信息或声音信息和屏幕信息的再现过程的管理信息，获得用于实现基于管理执行再现时所需的特定功能的驱动软件信息，并使用驱动软件执行再现。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2006318645A Information recording medium 审中-公开
标题翻译：信息记录媒体
公开(公告)号：JP2006318645A
公开(公告)日：2006-11-24
申请号：JP2006196021
申请日：2006-07-18
申请人： Toshiba Corp , 株式会社東芝
发明人： KOBAYASHI TADASHI , YAMADA HISASHI
IPC分类号： G11B7/24 , G11B7/243 , G11B7/254 , G11B7/257
摘要： PROBLEM TO BE SOLVED: To provide an information recording medium capable of securing a sufficient tilt margin and mechanical strength even when recording density is heightened. SOLUTION: The information recording medium is provided with a substrate having recording surfaces in which embossed pits or guide grooves are provided, on the two opposite sides thereof, a reflection film, a first protective film, a phase change recording film, a second protective film, a third protective film and a fourth protective film which are formed on each of the two recording surfaces of the substrate. The information recording medium is irradiated with a light beam from the fourth protective layer side to reproduce recorded information. The distances from each recording surface of the substrate to the uppermost surfaces of the films laminated on each recording surface are shorter than the thickness of the substrate, the third protective film has 5λ/(4n) to 0.6 mm thickness (λ denotes the wavelength of the light beam and n denotes the refractive index of the third protective film of light having the wavelength λ), the uppermost surfaces are smooth and the refractive index n 3 of the third protective film and the refractive index n 4 of the fourth protective film in the wavelength of the light beam satisfy the relation represented by a formula: n 3 ≥n 4 . COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供即使在记录密度提高时也能够确保足够的倾斜余量和机械强度的信息记录介质。解决方案：信息记录介质设置有具有记录表面的基板，其中设置有压纹凹坑或引导槽，在其两个相对侧上具有反射膜，第一保护膜，相变记录膜，第二保护膜，第三保护膜和第四保护膜，其形成在基板的两个记录表面的每一个上。信息记录介质用来自第四保护层侧的光束照射以再现记录信息。从基板的每个记录表面到层压在每个记录表面上的膜的最上表面的距离比基板的厚度短，第三保护膜的厚度为5λ/（4n）至0.6mm（λ表示光束和n表示具有波长λ的光的第三保护膜的折射率，最上表面是平滑的，并且第三保护膜的折射率n 3 和折射率n 光束波长的第四保护膜的 4 满足由下式表示的关系：n 3 ≥n 4 。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2006318644A Information recording medium 审中-公开
标题翻译：信息记录媒体
公开(公告)号：JP2006318644A
公开(公告)日：2006-11-24
申请号：JP2006196020
申请日：2006-07-18
申请人： Toshiba Corp , 株式会社東芝
发明人： KOBAYASHI TADASHI , YAMADA HISASHI
IPC分类号： G11B7/24 , G11B7/243 , G11B7/254 , G11B7/257
摘要： PROBLEM TO BE SOLVED: To provide an information recording medium capable of securing a sufficient tilt margin and mechanical strength even when recording density is heightened. SOLUTION: The information recording medium is provided with a reflection film, a first protective film, a phase change recording film, a second protective film, a third protective film and a fourth protective film on a substrate having a recording surface in which embossed pits or guide grooves are provided. The information recording medium is irradiated with a light beam from the fourth protective film side and recorded information is reproduced based on light intensity change of reflectance of the light beam. The distance from the recording surface of the substrate to a first surface is shorter than the thickness of the substrate, the distance from the recording surface of the substrate to the first surface is ≥5λ/(4n) and ≤0.1 mm (λ denotes the wavelength of the light beam and n denotes the refractive index of the protective films of light having the wavelength λ), the first surface is smooth and the refractive index n 3 of the third protective film and the refractive index n 4 of the fourth protective film in the wavelength of the light beam satisfy the relation represented by a formula: n 3 ≥n 4 . COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供即使在记录密度提高时也能够确保足够的倾斜余量和机械强度的信息记录介质。解决方案：信息记录介质在具有记录表面的基板上设置有反射膜，第一保护膜，相变记录膜，第二保护膜，第三保护膜和第四保护膜，其中提供压纹凹坑或引导槽。信息记录介质被来自第四保护膜侧的光束照射，并且基于光束的反射率的光强度变化再现记录信息。从基板的记录表面到第一表面的距离比基板的厚度短，从基板的记录面到第一面的距离为≥5λ/（4n）且≤0.1mm（λ表示光束的波长，n表示具有波长λ的光的保护膜的折射率，第一表面是平滑的，并且第三保护膜的折射率n 3 和折射率光束波长的第四保护膜的n 4 满足由公式：n 3 ≥n 4 表示的关系。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2006277754A Storage device 有权
标题翻译：储存设备
公开(公告)号：JP2006277754A
公开(公告)日：2006-10-12
申请号：JP2006107867
申请日：2006-04-10
申请人： Toshiba Corp , 株式会社東芝
发明人： TAMURA MASABUMI , KAMIBAYASHI TATSU , YAMADA HISASHI , ISHIBASHI YASUHIRO , KATO HIROSHI , TOMA HIDEYUKI
IPC分类号： G06F21/24 , G06F12/14 , G09C1/00 , G11B20/10 , G11B20/12
摘要： PROBLEM TO BE SOLVED: To allow the copyright of a content to be protected by efficiently restricting the number of replicated contents. SOLUTION: This storage device has identification information and is provided with: a storage means including an identification information storage area for storing the identification information, a secret area accessible by a hidden specific procedure, and an open area other than the secret area; and a control means for executing the specific procedure for accessing the secret area to determine whether the secret area is accessible or not and for enabling access to the secret area when it is accessible. An encrypted content and first control information encrypted by key information generated based on the identification information and required for a reproduction process of the encrypted content are stored in the open area; and second control information for generating the key information required for the reproduction process of the encrypted content is stored in the secret area. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过有效地限制复制内容的数量来允许保护内容的版权。解决方案：该存储装置具有识别信息，具有：存储装置，包括用于存储识别信息的识别信息存储区域，隐藏的特定过程可访问的秘密区域以及秘密区域以外的开放区域 ; 以及控制装置，用于执行用于访问秘密区域的特定过程，以确定秘密区域是否可访问，以及在可访问时能够访问秘密区域。通过基于识别信息产生并且对加密内容的再现处理所需的密钥信息加密的加密内容和第一控制信息存储在开放区域中; 并且用于生成加密内容的再现处理所需的密钥信息的第二控制信息被存储在秘密区域中。版权所有（C）2007，JPO＆INPIT

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