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1. 发明申请

WO2003101105A1 SMART CARD MATING PROTOCOL 审中-公开
公开(公告)号：WO2003101105A1
公开(公告)日：2003-12-04
申请号：PCT/US2003/009070
申请日：2003-03-19
申请人： GENERAL INSTRUMENT CORPORATION
发明人： OKIMOTO, John, I. , SPRUNK, Eric, J. , TANG, Lawrence, W. , CHEN, Annie, On-yee , KIMBALL, Bridget , PETTY, Douglas
IPC分类号： H04N7/167
CPC分类号： H04N21/254 , H04N7/163 , H04N21/2543 , H04N21/26609 , H04N21/4181 , H04N21/4367 , H04N21/4623
摘要： A system is described for uniquely mating components of a communication network such as a smartcard and a set-top box. When mated, the smartcard and set-top box are tied together and have a single identity. Further, the smartcard operates properly only when inserted into an authorized set-top box. Exchanges of information between both components are secured by encryption and authentication to guard against piracy of the exchanged information. The system provides the same authentication key to the set-top box and the smartcard. This key is used for authenticating communication between the set-top box and the smartcard. First, the authentication key is encrypted by a set-top box mating key. The set-top box employs this mating key to decrypt the authentication key. After it is derived, the authentication key is stored in the set-top box's memory. Further, the same authentication key is encrypted by a smartcard mating key. Thereafter, the smartcard employs the smartcard mating key to extract the authentication key. The clear authentication key is stored in the smartcard's memory as well. In this manner, the authentication key is used for securing all communication between the set-top box and the smart-card. For example, the set-top box may request control words from the smartcard. Only after authenticating the request, are the control words for decrypting digital content provided to the set-top box. If the smartcard authentication key is different from the set-top box key, the request for control words is denied.
摘要翻译：描述了用于唯一地匹配诸如智能卡和机顶盒之类的通信网络的组件的系统。当配对时，智能卡和机顶盒被捆绑在一起并具有单一身份。此外，仅当插入授权的机顶盒时，智能卡才能正常运行。通过加密和认证来确保两个组件之间的信息交换，以防止所交换信息的盗版。系统向机顶盒和智能卡提供相同的认证密钥。该密钥用于认证机顶盒和智能卡之间的通信。首先，认证密钥由机顶盒配对密钥加密。机顶盒采用这种配对密钥来解密认证密钥。导出后，身份验证密钥存储在机顶盒的内存中。此外，相同的认证密钥由智能卡配对密钥加密。此后，智能卡采用智能卡配对密钥来提取认证密钥。清除认证密钥也存储在智能卡的存储器中。以这种方式，认证密钥用于保护机顶盒和智能卡之间的所有通信。例如，机顶盒可以从智能卡请求控制字。只有在认证请求之后，才是解密提供给机顶盒的数字内容的控制字。如果智能卡认证密钥与机顶盒密钥不同，则拒绝对控制字的请求。

2. 发明申请

WO2004025954A1 CONTENT ADVISORY RATING PRESERVATION DURING PERSONAL VIDEO RECORDER TRICK PLAY MODES 审中-公开
标题翻译：个人视频录像机内容咨询评分保护
公开(公告)号：WO2004025954A1
公开(公告)日：2004-03-25
申请号：PCT/US2003/028014
申请日：2003-09-04
申请人： GENERAL INSTRUMENT CORPORATION
发明人： KIMBALL, Bridget , GOFFIN, Glen, Peter, II , BAKER, Paul , MCDONALD, Greg , ANDERES, Walter
IPC分类号： H04N5/76
CPC分类号： H04N21/4147 , G11B27/034 , G11B27/105 , G11B27/107 , G11B27/11 , G11B27/3054 , G11B27/328 , G11B27/329 , G11B27/34 , G11B2220/216 , G11B2220/2562 , G11B2220/65 , G11B2220/90 , H04N5/76 , H04N21/235 , H04N21/435 , H04N21/440281 , H04N21/4532 , H04N21/4542 , H04N21/84
摘要： A personal video recorder records and plays back a television program in a user-defined playback mode while preserving content advisory rating information. A decoder parses a digital transport stream comprising transport stream packets containing the television program and generates navigation data. A source of content advisory rating information corresponding to said television program is provided. This source of content advisory rating information may be within the digital transport stream. A non-volatile storage unit is used for saving each of the frames of the television program in a transport stream file and for saving the navigation data in a navigation data file. The navigation data includes pointers that point to a location of each of the frames of the television program in the transport stream file and content advisory rating information associated with each of the frames from the source of content advisory rating information. A processor for executes an algorithm that processes the transport stream file according to the user-defined playback mode. Content advisory rating information that corresponds to frames that are to be shown in the user-defined playback mode is taken from the navigation data file and inserted in the video output signal.
摘要翻译：个人录像机以用户定义的播放模式记录和回放电视节目，同时保留内容咨询评级信息。解码器解析包含包含电视节目的传输流分组并产生导航数据的数字传输流。提供对应于所述电视节目的内容咨询评价信息的来源。该内容提供评级信息来源可能在数字传输流内。非易失性存储单元用于将电视节目的每个帧保存在传输流文件中，并将导航数据保存在导航数据文件中。导航数据包括指向传输流文件中的电视节目的每个帧的位置的指针以及与来自内容咨询评级信息的源的每个帧相关联的内容咨询评级信息。一种用于执行根据用户定义的播放模式处理传输流文件的算法的处理器。对应于在用户定义的播放模式中显示的帧的内容咨询评级信息取自导航数据文件并被插入到视频输出信号中。

3. 发明公开

EP1491049A1 SMART CARD MATING PROTOCOL 无效
标题翻译：修改协议对于智能卡
公开(公告)号：EP1491049A1
公开(公告)日：2004-12-29
申请号：EP03719460.2
申请日：2003-03-19
申请人： General Instrument Corporation
发明人： OKIMOTO, John, I. , SPRUNK, Eric, J. , TANG, Lawrence, W. , CHEN, Annie, On-yee , KIMBALL, Bridget , PETTY, Douglas
IPC分类号： H04N7/167 , H04N7/16
CPC分类号： H04N21/254 , H04N7/163 , H04N21/2543 , H04N21/26609 , H04N21/4181 , H04N21/4367 , H04N21/4623
摘要： A system is described for uniquely mating components of a communication network such as a smartcard and a set-top box. When mated, the smartcard and set-top box are tied together and have a single identity. Further, the smartcard operates properly only when inserted into an authorized set-top box. Exchanges of information between both components are secured by encryption and authentication to guard against piracy of the exchanged information. The system provides the same authentication key to the set-top box and the smartcard. This key is used for authenticating communication between the set-top box and the smartcard. First, the authentication key is encrypted by a set-top box mating key. The set-top box employs this mating key to decrypt the authentication key. After it is derived, the authentication key is stored in the set-top box's memory. Further, the same authentication key is encrypted by a smartcard mating key. Thereafter, the smartcard employs the smartcard mating key to extract the authentication key. The clear authentication key is stored in the smartcard's memory as well. In this manner, the authentication key is used for securing all communication between the set-top box and the smart-card. For example, the set-top box may request control words from the smartcard. Only after authenticating the request, are the control words for decrypting digital content provided to the set-top box. If the smartcard authentication key is different from the set-top box key, the request for control words is denied.

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