System for securing access to data streams
    1.
    发明公开
    System for securing access to data streams 审中-公开
    系统zur Sicherung vonDatenflüssen

    公开(公告)号:EP2472897A1

    公开(公告)日:2012-07-04

    申请号:EP12161304.6

    申请日:2003-11-16

    申请人: NDS Limited

    摘要: A digital content receiver (DCR) (5) is described comprising: a local scrambling descrambler (100), a broadcast descrambler (110) receiving an output produced by the local scrambling descrambler (100), a local scrambler (120), a combined extra encryption algorithm decryptor and decoder / decompressor (XDDC) (130), and a switch (140) operative to provide an output of the broadcast descrambler (110) to exactly one of the local scrambler (120) and the XDDC (130). The DCR (5) is operative to receive control information (160) and compressed encrypted digital content (70), and at least the setting of the switch (140) is determined, at least in part, by the control information (160). The DCR (5) is operative to produce an output based on all of the following: the compressed digital content (30), a user-requested output format, the received control information (160), and a rule determining whether a clear compressed output format is allowed. If the rule does not allow clear compressed output format, the compressed encrypted digital content (70) is provided to the DCR in a form which prevents production of clear compressed output (30) as the output of the DCR.

    摘要翻译: 数字内容接收器(DCR)(5)被描述为包括:本地加扰解扰器(100),接收由本地加扰解扰器(100)产生的输出的广播解扰器(110),本地加扰器(120),组合 额外的加密算法解密器和解码器/解压缩器(XDDC)(130),以及开关(140),用于将广播解扰器(110)的输出提供给本地加扰器(120)和XDDC(130)中的一个。 DCR(5)可操作以接收控制信息(160)和压缩的加密数字内容(70),并且至少部分地由控制信息(160)确定交换机(140)的设置。 DCR(5)可操作以基于以下所有方式产生输出:压缩数字内容(30),用户请求的输出格式,接收到的控制信息(160)以及确定是否清除压缩输出 格式是允许的。 如果规则不允许明确的压缩输出格式,则压缩的加密数字内容(70)以防止产生明显的压缩输出(30)作为DCR的输出的形式被提供给DCR。

    Video trick mode system
    3.
    发明公开
    Video trick mode system 审中-公开
    视频Trickwiedergabesystem

    公开(公告)号:EP2421258A1

    公开(公告)日:2012-02-22

    申请号:EP11189406.9

    申请日:2006-06-29

    申请人: NDS Limited

    摘要: A method for producing an auxiliary video stream arranged for reverse trick mode playback from a video stream including a plurality of uni-directional predicted frames, the method including producing the auxiliary video stream by performing the following steps copying each uni-directional predicted frame included in the video stream into a memory, thereby producing a plurality of copied frames in the memory, replacing each one of the plurality of copied frames with one corresponding supplemental frame, thereby producing a plurality of corresponding supplemental frames, and producing a copy of the video stream arranged in reverse processing order, the producing a copy including replacing each frame which corresponds to one of the plurality of copied frames with the one corresponding supplemental frame from among the plurality of corresponding supplemental frames. Related methods and systems are also described.

    摘要翻译: 一种用于从包括多个单向预测帧的视频流产生辅助视频流的方法,该方法包括:通过执行以下步骤来产生辅助视频流:复制包含在每个单向预测帧中的每个单向预测帧 视频流进入存储器,从而在存储器中产生多个复制的帧,用一个对应的补充帧替换多个复制帧中的每一个,从而产生多个对应的补充帧,并产生视频流的副本 以反向处理顺序排列,产生副本,其中包括从多个对应的补充帧中用与一个对应的补充帧替换对应于多个复制帧中的一个的每个帧。 还描述了相关方法和系统。

    Video trick mode system
    7.
    发明公开
    Video trick mode system 有权
    视频技巧模式系统

    公开(公告)号:EP2421257A1

    公开(公告)日:2012-02-22

    申请号:EP11189390.5

    申请日:2006-06-29

    申请人: NDS Limited

    摘要: A method for producing an auxiliary video stream arranged for reverse trick mode playback from a video stream including a plurality of uni-directional predicted frames, the method including producing the auxiliary video stream by performing the following steps copying each uni-directional predicted frame included in the video stream into a memory, thereby producing a plurality of copied frames in the memory, replacing each one of the plurality of copied frames with one corresponding supplemental frame, thereby producing a plurality of corresponding supplemental frames, and producing a copy of the video stream arranged in reverse processing order, the producing a copy including replacing each frame which corresponds to one of the plurality of copied frames with the one corresponding supplemental frame from among the plurality of corresponding supplemental frames. Related methods and systems are also described.

    摘要翻译: 一种用于从包括多个单向预测帧的视频流中产生被安排用于反向特技模式重放的辅助视频流的方法,所述方法包括通过执行以下步骤来产生辅助视频流:复制包括在 将视频流转换成存储器,从而在存储器中产生多个复制帧,用一个对应的补充帧替换多个复制帧中的每一个,由此产生多个对应的补充帧,并产生视频流的副本 以相反处理顺序排列,产生副本,包括用多个相应补充帧中的一个相应补充帧替换与多个复制帧中的一个对应的每个帧。 还描述了相关的方法和系统。

    System for multimedia viewing based on entitlements
    8.
    发明公开
    System for multimedia viewing based on entitlements 审中-公开
    System zur Multimedia-Ansicht auf Grundlage von Berechtigungen

    公开(公告)号:EP2320359A1

    公开(公告)日:2011-05-11

    申请号:EP10016187.6

    申请日:2003-09-07

    申请人: NDS Limited

    IPC分类号: G06Q20060101

    摘要: A content display unit for receiving content items for display, comprising: a content identification message receiver arranged to receive at least one content identification message from a mobile device; a content identification message storage unit arranged to store the at least one received content identification message; a content storage arranged to store a plurality of content items comprising a payload and content item metadata; a content item selector arranged to select at least one content item for display from among a plurality of content items based, at least in part, on at least one content identification message stored in the content identification message storage unit and on the content item metadata; and a display for displaying the selected content item.

    摘要翻译: 一种用于接收用于显示的内容项的内容显示单元,包括:内容标识消息接收器,被配置为从移动设备接收至少一个内容标识消息; 内容识别消息存储单元,被配置为存储所述至少一个接收到的内容标识消息; 内容存储器,其被布置为存储包括有效载荷和内容项元数据的多个内容项; 至少部分地基于存储在所述内容识别消息存储单元中的至少一个内容识别消息和所述内容项目元数据,从多个内容项目中选择至少一个用于显示的内容项目的内容项目选择器; 以及用于显示所选择的内容项目的显示器。