Native scrambling system
    4.
    发明公开
    Native scrambling system 审中-公开
    NATIVES SCRAMBLING-SYSTEM

    公开(公告)号:EP2579497A1

    公开(公告)日:2013-04-10

    申请号:EP13150258.5

    申请日:2006-03-22

    申请人: NDS LIMITED

    IPC分类号: H04L9/06 H04L9/18

    摘要: A system (10) for scrambling / descrambling packets (20,22) of a stream of content (16) is disclosed, each of the packets (20,22) having a must stay clear (MSC) section (24) which is always kept in the clear, the system (10) comprising: an input handler (12) including: a receiving module (34) to receive the stream (16); and a mask module (46) to create, for each of the packets (20,22), a data mask (48) which includes all data of the MSC section except for at least one bit of data of the MSC section; and a scrambling / descrambling device (14) operationally associated with the input handler (12), the scrambling / descrambling device (14) including: a receiving module (50) to receive the data mask (48) for each of the packets (20,22) from the input handler (12); and an Initial Value module (52) to determine an Initial Value (70) for each of the packets (20,22) as a function of the data mask (48) of one of the packets (20,22) being processed such that the Initial Value (70) is not a function of the at least one bit of data of the MSC section (24) of the one packet (20,22) being processed, the scrambling /descrambling device (14) being adapted to at least one of scramble and descramble the packets (20,22) based on the Initial Value (70) and a Control Word (62).

    摘要翻译: 公开了一种用于对内容流(16)进行加扰/解扰分组(20,22)的系统(10),每个分组(20,22)具有必须保持清晰(MSC)部分(24),其总是 保持清晰,系统(10)包括:输入处理器(12),包括:接收模块(34),用于接收流(16); 以及掩模模块(46),用于为每个分组(20,22)创建除了MSC部分的至少一个数据位之外的MSC部分的所有数据的数据掩码(48); 以及与所述输入处理器(12)可操作地相关联的加扰/解扰设备(14),所述加扰/解扰设备(14)包括:接收模块(50),用于为每个分组(20)接收数据掩码(48) ,22); 以及初始值模块(52),用于根据正被处理的分组(20,22)之一的数据掩码(48)确定每个分组(20,22)的初始值(70),使得 初始值(70)不是正被处理的一个分组(20,22)的MSC部分(24)的数据的至少一个比特的函数,加扰/解扰装置(14)至少适合 基于初始值(70)和控制字(62)对数据包(20,22)进行加扰和解扰之一。

    System for multimedia viewing based on entitlements
    5.
    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。

    Digital rights management system and method
    6.
    发明公开
    Digital rights management system and method 有权
    Verfahren und vorrichtung zur verwaltung digitaler berechtigungen

    公开(公告)号:EP2267626A2

    公开(公告)日:2010-12-29

    申请号:EP10010130.2

    申请日:2002-02-21

    申请人: NDS Limited

    IPC分类号: G06F21/00

    摘要: A method for generating a signature for an end user device is disclosed. The end user device (180) comprises at least video display hardware (106) and video display software. The method comprises: processing video data by the video display hardware (106) and the video display software, thereby altering at least a portion of the video data according to a characteristic of at least one of the video display hardware (194) and the video display software to form altered data; forming the signature at the end user device (180) based, at least in part, on said altered data; generating a user profile for said end user device (180) using said signature; and transmitting said user profile to a headend (104) for use in uniquely protecting content to be sent to said end user device (180).

    摘要翻译: 公开了一种用于生成终端用户设备的签名的方法。 终端用户设备(180)至少包括视频显示硬件(106)和视频显示软件。 该方法包括:通过视频显示硬件(106)和视频显示软件处理视频数据,从而根据视频显示硬件(194)和视频中的至少一个的特性改变视频数据的至少一部分 显示软件以形成更改的数据; 至少部分地基于所述更改的数据在最终用户设备(180)处形成签名; 使用所述签名生成所述终端用户设备(180)的用户简档; 以及将所述用户简档发送到头端(104),用于唯一地保护要发送到所述最终用户设备(180)的内容。