Device interconnect system using analog line
    1.
    发明授权
    Device interconnect system using analog line 失效
    设备互连系统采用模拟线路

    公开(公告)号:US06750917B2

    公开(公告)日:2004-06-15

    申请号:US09814717

    申请日:2001-03-23

    IPC分类号: H04N708

    摘要: In a system for transferring an analog video signal which contains command information and the like in vertical blanking interval VBI between master and slave devices via an analog line, information (bits 1 to 20) having a word configuration (words 0 to 2+CRCC) consisting of a predetermined number of bits (variable within the range from 5 bits to 80 bits) is superposed in a predetermined period (49.1 &mgr;s) of a predetermined VBI line (line number 10) at a predetermined clock (fsc/32 to fsc/2). In this manner, device which are interconnected via an analog video signal line can transfer information having various contents/lengths that can be changed in correspondence with a partner connected using vertical blanking interval VBI.

    摘要翻译: 在通过模拟线在主设备和从设备之间的垂直消隐间隔VBI中传送包含命令信息等的模拟视频信号的系统中,具有字配置(字0至2 + CRCC)的信息(位1至20) 在预定时间(fsc / 32至fsc / 32)的预定VBI线(行号10)的预定周期(49.1μs)中叠加预定数量的比特(在5比特到80比特范围内可变) 2)。 以这种方式,通过模拟视频信号线互连的设备可以传送具有与使用垂直消隐间隔VBI连接的对方相对应的可改变的各种内容/长度的信息。

    Contents management method, contents management apparatus, and recording medium
    5.
    发明授权
    Contents management method, contents management apparatus, and recording medium 有权
    内容管理方法,内容管理装置和记录介质

    公开(公告)号:US07505584B2

    公开(公告)日:2009-03-17

    申请号:US11406396

    申请日:2006-04-19

    IPC分类号: H04L9/00

    摘要: An apparatus generates first shared information that is shared by the apparatus and a recording medium by performing a first bilateral authentication. The apparatus encrypts overwrite data that is used to erase key information item recorded in the recording medium using the first shared information. Encrypted overwrite data is transferred to the recording medium. Second shared information is generated and shared by the apparatus and the recording medium by performing a second bilateral authentication between them. The apparatus receives data that is encrypted using the second shared information and that has been used by the recording medium for erasing key information. Encrypted data is decrypted using second shared information item and key information recorded in the recording medium is erased when the decrypted data is identical to overwrite data.

    摘要翻译: 设备通过执行第一双向认证来生成由设备和记录介质共享的第一共享信息。 该装置使用第一共享信息加密用于擦除记录在记录介质中的密钥信息项的重写数据。 加密的覆盖数据被传送到记录介质。 通过在它们之间执行第二双向认证,由设备和记录介质生成和共享第二共享信息。 该装置接收使用第二共享信息进行加密并且已由记录介质使用的用于擦除密钥信息的数据。 使用第二共享信息项解密加密数据,并且当解密的数据与覆盖数据相同时,擦除记录在记录介质中的密钥信息。

    Contents management method, content management apparatus, and recording medium
    7.
    发明授权
    Contents management method, content management apparatus, and recording medium 有权
    内容管理方法,内容管理装置和记录介质

    公开(公告)号:US07181008B1

    公开(公告)日:2007-02-20

    申请号:US09611716

    申请日:2000-07-06

    IPC分类号: H04K1/00 H04L9/00

    摘要: An apparatus generates first shared information that is shared by the apparatus and a recording medium by performing a first bilateral authentication. The apparatus encrypts overwrite data that is used to erase key information item recorded in the recording medium using the first shared information. Encrypted overwrite data is transferred to the recording medium. Second shared information is generated and shared by the apparatus and the recording medium by performing a second bilateral authentication between them. The apparatus receives data that is encrypted using the second shared information and that has been used by the recording medium for erasing key information. Encrypted data is decrypted using second shared information item and key information recorded in the recording medium is erased when the decrypted data is identical to overwrite data.

    摘要翻译: 设备通过执行第一双向认证来生成由设备和记录介质共享的第一共享信息。 该装置使用第一共享信息加密用于擦除记录在记录介质中的密钥信息项的重写数据。 加密的覆盖数据被传送到记录介质。 通过在它们之间执行第二双向认证,由设备和记录介质生成和共享第二共享信息。 该装置接收使用第二共享信息进行加密并且已由记录介质使用的用于擦除密钥信息的数据。 使用第二共享信息项解密加密数据,并且当解密的数据与覆盖数据相同时,擦除记录在记录介质中的密钥信息。

    Contents managing method and contents managing apparatus
    9.
    发明授权
    Contents managing method and contents managing apparatus 失效
    内容管理方法和内容管理装置

    公开(公告)号:US06847950B1

    公开(公告)日:2005-01-25

    申请号:US09539416

    申请日:2000-03-30

    CPC分类号: G06F21/10

    摘要: A contents managing method of regulating a number of copied contents storable on a storage medium includes giving a predetermined number of copyable contents for each content, recording the copied contents on the storage medium upon reception of an instruction for copy recording on the storage medium when there is a remainder in the number of copyable contents, decrementing the number of copyable contents by “1” every time one copied content is recorded on the storage medium at a time of recording, and incrementing the number of copyable contents by “1” every time one copied content is erased from the storage medium upon reception of an instruction to erase the copied contents from the storage medium.

    摘要翻译: 一种内容管理方法,用于调节可存储在存储介质上的复制内容的数量,包括给每个内容提供预定数目的可复制内容,当接收到存储介质上的复制指令指令时,在存储介质上记录复制内容 是可复制内容的数量的余数,每次在记录时将一个复制内容记录在存储介质上时,将可复制内容的数量减少“1”,并且每次可复制的内容数量增加“1” 从接收到从存储介质擦除复制的内容的指令时,从存储介质擦除一个复制的内容。