Copy protection system for data carriers
    1.
    发明申请
    Copy protection system for data carriers 失效
    复制数据载体保护系统

    公开(公告)号:US20060280050A1

    公开(公告)日:2006-12-14

    申请号:US10560316

    申请日:2004-06-09

    IPC分类号: G11B7/085

    摘要: A copy-protected compact disc includes, within a single session, a table of contents (TOC) and a Video CD index (VI). Each track (T) is prefaced by unrecoverable data (UD) at a track start position (ATOC) indicated by the table of contents (TOC). However, the Video CD index (VI) indicates the actual position (AP) of the tracks. DVD players use the Video CD index (VI) to locate the tracks, while CD-ROM drives use the table of contents (TOC) and read the unrecoverable data (UD), which prevents them from reading the subsequent track (T). The unrecoverable data (UD) may be prefaced by data pointers (DP) which cause the CD-ROM drive to load a player program in response to the error condition. The player program can be used to play the tracks (T), but restricts copying. Subchannel data (P; DX) causes audio CD players to ignore the Video CD index (VI) and the unrecoverable data (UD), and to play the tracks (T) at their actual start positions (AP).

    摘要翻译: 复制保护的光盘在单个会话内包括目录(TOC)和视频CD索引(VI)。 每个轨道(T)由内容表(TOC)指示的轨道起始位置(ATOC)处的不可恢复数据(UD)开始。 然而,视频CD索引(VI)指示轨道的实际位置(AP)。 DVD播放机使用视频CD索引(VI)来定位曲目,而CD-ROM驱动器使用目录(TOC)并读取不可恢复数据(UD),这阻止它们读取后续轨道(T)。 不可恢复数据(UD)可以由数据指针(DP)开头,数据指针(DP)使CD-ROM驱动器响应错误状况加载播放器程序。 播放器程序可用于播放曲目(T),但限制复制。 子信道数据(P; DX)使音频CD播放器忽略视频CD索引(VI)和不可恢复数据(UD),并在其实际开始位置(AP)播放曲目(T)。

    Copy protection system for data carriers
    2.
    发明授权
    Copy protection system for data carriers 失效
    复制数据载体保护系统

    公开(公告)号:US07987508B2

    公开(公告)日:2011-07-26

    申请号:US10560316

    申请日:2004-06-09

    摘要: A copy-protected compact disc includes, within a single session, a table of contents (TOC) and a Video CD index (VI). Each track (T) is prefaced by unrecoverable data (UD) at a track start position (ATOC) indicated by the table of contents (TOC). However, the Video CD index (VI) indicates the actual position (AP) of the tracks. DVD players use the Video CD index (VI) to locate the tracks, while CD-ROM drives use the table of contents (TOC) and read the unrecoverable data (UD), which prevents them from reading the subsequent track (T). The unrecoverable data (UD) may be prefaced by data pointers (DP) which cause the CD-ROM drive to load a player program in response to the error condition. The player program can be used to play the tracks (T), but restricts copying. Subchannel data (P; DX) causes audio CD players to ignore the Video CD index (VI) and the unrecoverable data (UD), and to play the tracks (T) at their actual start positions (AP).

    摘要翻译: 复制保护的光盘在单个会话内包括目录(TOC)和视频CD索引(VI)。 每个轨道(T)由内容表(TOC)指示的轨道起始位置(ATOC)处的不可恢复数据(UD)开始。 然而,视频CD索引(VI)指示轨道的实际位置(AP)。 DVD播放机使用视频CD索引(VI)来定位曲目,而CD-ROM驱动器使用目录(TOC)并读取不可恢复数据(UD),这阻止它们读取后续轨道(T)。 不可恢复数据(UD)可以由数据指针(DP)开头,数据指针(DP)使CD-ROM驱动器响应错误状况加载播放器程序。 播放器程序可用于播放曲目(T),但限制复制。 子信道数据(P; DX)使音频CD播放器忽略视频CD索引(VI)和不可恢复数据(UD),并在其实际开始位置(AP)播放曲目(T)。

    Copy Protection System for Data Carriers
    3.
    发明申请
    Copy Protection System for Data Carriers 审中-公开
    数据载体复制保护系统

    公开(公告)号:US20110267932A1

    公开(公告)日:2011-11-03

    申请号:US13180596

    申请日:2011-07-12

    IPC分类号: G11B7/24 G11B7/085

    摘要: A copy-protected compact disc includes, within a single session, a table of contents (TOC) and a Video CD index (VI). Each track (T) is prefaced by unrecoverable data (UD) at a track start position (ATOC) indicated by the table of contents (TOC). However, the Video CD index (VI) indicates the actual position (AP) of the tracks. DVD players use the Video CD index (VI) to locate the tracks, while the CD-ROM drives use the table of contents (TOC) and read the unrecoverable data (UD), which prevents them from reading the subsequent track (T). The unrecoverable data (UD) may be prefaced by data pointers (DP) which cause the CD-ROM drive to load a player program in response to the error condition. The player program can be used to play the tracks (T), but restricts copying. Subchannel data (P; DX) causes audio CD players to ignore the Video CD index (VI) and the unrecoverable data (UD), and to play the tracks (T) at their actual start positions (AP).

    摘要翻译: 复制保护的光盘在单个会话内包括目录(TOC)和视频CD索引(VI)。 每个轨道(T)由内容表(TOC)指示的轨道起始位置(ATOC)处的不可恢复数据(UD)开始。 然而,视频CD索引(VI)指示轨道的实际位置(AP)。 DVD播放机使用视频CD索引(VI)来定位曲目,而CD-ROM驱动器使用目录(TOC)并读取不可恢复数据(UD),这阻止它们读取后续轨道(T)。 不可恢复数据(UD)可以由数据指针(DP)开头,数据指针(DP)使CD-ROM驱动器响应错误状况加载播放器程序。 播放器程序可用于播放曲目(T),但限制复制。 子信道数据(P; DX)使音频CD播放器忽略视频CD索引(VI)和不可恢复数据(UD),并在其实际开始位置(AP)播放曲目(T)。