Apparatus, Method, and Program Product For Recording and Reproducing Contents
    3.
    发明申请
    Apparatus, Method, and Program Product For Recording and Reproducing Contents 失效
    用于记录和再现内容的装置,方法和程序产品

    公开(公告)号:US20080232785A1

    公开(公告)日:2008-09-25

    申请号:US10591179

    申请日:2006-06-28

    IPC分类号: H04N5/00

    摘要: A contents recording and reproducing apparatus performs a record and a reproduce of a recording medium, in which the recording medium records a title key file registering therein at least one title key which encrypts each of plural title contents corresponding to a program video or sound, and title contents encrypted by the title key. The contents recording and reproducing apparatus includes an TKF initializing unit 141 which generates a title key file and records it in the recording medium, a random number generating unit 111 which generates a random number corresponding to each of the plural title key files, and a recording unit 113 which records a plurality of title key files in a DVD medium 140. The TKF initializing unit 141 registers the random number, the TKF random number corresponding to the title key file, and an encryption title key.

    摘要翻译: 内容记录和再现设备执行记录介质的记录和再现,其中记录介质记录标记密钥文件,其中登记有至少一个标题密钥,其对与节目视频或声音相对应的多个标题内容中的每一个进行加密,以及 标题内容由标题密钥加密。 内容记录和再现装置包括一个TKF初始化单元141,生成标题密钥文件并将其记录在记录介质中;随机数生成单元111,生成与多个标题密钥文件中的每一个对应的随机数,以及记录 单元113,其将多个标题密钥文件记录在DVD介质140中.TXF初始化单元141登记随机数,对应于标题密钥文件的TKF随机数和加密标题密钥。

    Apparatus, method, and program product for recording and reproducing contents
    7.
    发明授权
    Apparatus, method, and program product for recording and reproducing contents 失效
    用于记录和再现内容的装置,方法和程序产品

    公开(公告)号:US07706664B2

    公开(公告)日:2010-04-27

    申请号:US10591179

    申请日:2006-06-28

    IPC分类号: H04N5/91

    摘要: A contents recording and reproducing apparatus performs a record and a reproduce of a recording medium, in which the recording medium records a title key file registering therein at least one title key which encrypts each of plural title contents corresponding to a program video or sound, and title contents encrypted by the title key. The contents recording and reproducing apparatus includes an TKF initializing unit 141 which generates a title key file and records it in the recording medium, a random number generating unit 111 which generates a random number corresponding to each of the plural title key files, and a recording unit 113 which records a plurality of title key files in a DVD medium 140. The TKF initializing unit 141 registers the random number, the TKF random number corresponding to the title key file, and an encryption title key.

    摘要翻译: 内容记录和再现设备执行记录介质的记录和再现,其中记录介质记录标记密钥文件,其中登记有至少一个标题密钥,其对与节目视频或声音相对应的多个标题内容中的每一个进行加密,以及 标题内容由标题密钥加密。 内容记录和再现装置包括一个TKF初始化单元141,生成标题密钥文件并将其记录在记录介质中;随机数生成单元111,生成与多个标题密钥文件中的每一个对应的随机数,以及记录 单元113,其将多个标题密钥文件记录在DVD介质140中.TXF初始化单元141登记随机数,对应于标题密钥文件的TKF随机数和加密标题密钥。

    Recording medium processing device
    8.
    发明申请
    Recording medium processing device 审中-公开
    记录介质处理装置

    公开(公告)号:US20050254387A1

    公开(公告)日:2005-11-17

    申请号:US11047625

    申请日:2005-02-02

    摘要: From a main information file including main information, and a specific information file which has two or more data blocks including specific information and has a data capacity of two or more times greater than a predetermined capacity, a plurality of error correction code blocks whose data capacity is the predetermined capacity are generated. A confidential information is embedded in the specific information in the generated plurality of error correction blocks. When the main information in the recording medium is rewritten in a unit of the error correction code block, the confidential information embedded in the specific information is protected because either of the two data blocks in the specific information file remains without being rewritten.

    摘要翻译: 包括主信息的主信息文件和具有包含特定信息的两个或多个数据块并且具有比预定容量大两倍或更多倍的数据容量的特定信息文件,数据容量的多个纠错码块 是产生预定的容量。 在生成的多个纠错块中的特定信息中嵌入机密信息。 当以纠错码块为单位重写记录介质中的主信息时,嵌入在特定信息中的机密信息被保护,因为特定信息文件中的两个数据块中的任一个保持不被重写。