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1. 发明授权

EP2504991B1 SPLICING OF CONTENT 有权转让
标题翻译：内容的拼接
公开(公告)号：EP2504991B1
公开(公告)日：2018-03-07
申请号：EP10782395.7
申请日：2010-10-24
申请人： NDS Limited
发明人： Pasternak, Tal , Millar, Keith , Sundy, Len , Poupko, Avraham
IPC分类号： H04N5/00 , H04N7/24 , H04N21/234 , H04N21/236 , H04N21/433 , H04N21/434 , H04N21/4363 , H04N21/44 , H04N21/61 , H04N21/845
CPC分类号： H04N21/23614 , H04N21/23424 , H04N21/23608 , H04N21/433 , H04N21/4331 , H04N21/4334 , H04N21/4344 , H04N21/43637 , H04N21/44016 , H04N21/6131 , H04N21/8455
摘要： A Headend system including a video codec to encode a video sequence yielding an encoded video sequence having video packets, a multiplexer, a signal generator to receive a notification of a splice point, analyze at least some of the encoded video packets based on the notification in order to find a random-access-point-packet, the random-access-point being a point from which to start decoding the encoded video sequence by the rendering device so that the video sequence may be rendered for output from the splice point, create a timing signal estimating a location of the random-access-point-packet in the encoded video sequence, and output the timing signal to the multiplexer or transmission equipment. Related apparatus and methods are also described.

2. 发明公开

EP2439946A2 Scrambled digital data item 有权转让
标题翻译： Verschlüsseltes数字电视数据
公开(公告)号：EP2439946A2
公开(公告)日：2012-04-11
申请号：EP11190147.6
申请日：2007-05-03
申请人： NDS Limited
发明人： Millar, Keith , Harvey, Colin
IPC分类号： H04N7/167 , H04N7/173 , H04N21/61 , H04N21/4623 , H04N21/4405 , H04N21/643 , H04N21/438 , H04N21/2662
CPC分类号： H04N7/1675 , H04N7/17318 , H04N21/2662 , H04N21/4384 , H04N21/4405 , H04N21/4623 , H04N21/6125 , H04N21/64322
摘要： A method of decrypting a scrambled digital data item at a client, comprising receiving (1205/1511) actual control messages at said client, wherein each actual control message comprises control word generating information for generating a control word associated with the actual control message; storing (1207/1513) said actual control messages at said client; receiving (1211/1519) a portion of said scrambled digital data item at said client independently of said actual control messages; decrypting (1215/1523) said portion of said scrambled digital data item using said plurality of actual control messages without storing said scrambled digital data item at said client; stopping the receiving (1307) of said portion of said scrambled digital data item whilst continuing to receive actual control messages associated with a subsequent portion of said scrambled digital data item; receiving (1315), via a unicast, said subsequent portion of said scrambled digital data item; and decrypting (1319) said subsequent portion of said scrambled digital data item using said actual control messages. The scrambled digital data item comprises a plurality of segments of scrambled digital data, each segment of scrambled digital data being associated with one of said actual control messages and being scrambled with the control word associated with said one of said actual control messages, and wherein said scrambled digital data item further comprises a plurality of reference control messages, each segment of scrambled digital data comprising one of said reference control messages, each of said reference control messages comprising a control message reference value identifying the actual control message associated with the segment of scrambled digital data.
摘要翻译：一种在客户端解密加扰的数字数据项的方法，包括在所述客户机处接收（1205/1511）实际控制消息，其中每个实际控制消息包括用于生成与实际控制消息相关联的控制字的控制字产生信息; 在所述客户端存储（1207/1513）所述实际控制消息; 独立于所述实际控制消息，在所述客户端处接收（1211/1519）所述加密数字数据项的一部分; 使用所述多个实际控制消息来解密（1215/1523）所述加扰的数字数据项的所述部分，而不在所述客户端存储所述加密的数字数据项; 停止所述加扰的数字数据项的所述部分的接收（1307），同时继续接收与所述加扰数字数据项的后续部分相关联的实际控制消息; 经由单播接收（1315）所述加密的数字数据项的所述后续部分; 以及使用所述实际控制消息来解密（1319）所述加密数字数据项的所述后续部分。加密的数字数据项包括多个加扰数字数据段，加扰数字数据的每个段与所述实际控制消息中的一个相关联，并且与与所述实际控制消息中的一个相关联的控制字加扰，并且其中所述加扰数字数据项还包括多个参考控制消息，每个片段的加扰数字数据包括所述参考控制消息之一，每个所述参考控制消息包括一个控制消息参考值，该值指示与加扰的片段相关联的实际控制消息数字数据。

3. 发明授权

EP2439946B1 Scrambled digital data item 有权转让
标题翻译：加密的数字数据项
公开(公告)号：EP2439946B1
公开(公告)日：2013-07-10
申请号：EP11190147.6
申请日：2007-05-03
申请人： NDS Limited
发明人： Millar, Keith , Harvey, Colin
IPC分类号： H04N7/167 , H04N7/173 , H04N21/61 , H04N21/4623 , H04N21/4405 , H04N21/643 , H04N21/438 , H04N21/2662
CPC分类号： H04N7/1675 , H04N7/17318 , H04N21/2662 , H04N21/4384 , H04N21/4405 , H04N21/4623 , H04N21/6125 , H04N21/64322

4. 发明公开

EP2504991A1 SPLICING OF CONTENT 有权转让
标题翻译： SPLICE含量的
公开(公告)号：EP2504991A1
公开(公告)日：2012-10-03
申请号：EP10782395.7
申请日：2010-10-24
申请人： NDS Limited
发明人： Pasternak, Tal , Millar, Keith , Sundy, Len , Poupko, Avraham
IPC分类号： H04N5/00 , H04N7/24
CPC分类号： H04N21/23614 , H04N21/23424 , H04N21/23608 , H04N21/433 , H04N21/4331 , H04N21/4334 , H04N21/4344 , H04N21/43637 , H04N21/44016 , H04N21/6131 , H04N21/8455
摘要： A Headend system including a video codec to encode a video sequence yielding an encoded video sequence having video packets, a multiplexer, a signal generator to receive a notification of a splice point, analyze at least some of the encoded video packets based on the notification in order to find a random-access-point-packet, the random-access-point being a point from which to start decoding the encoded video sequence by the rendering device so that the video sequence may be rendered for output from the splice point, create a timing signal estimating a location of the random-access-point-packet in the encoded video sequence, and output the timing signal to the multiplexer or transmission equipment. Related apparatus and methods are also described.

5. 发明公开

EP2439946A3 Scrambled digital data item 有权转让
标题翻译：加扰的数字数据项
公开(公告)号：EP2439946A3
公开(公告)日：2012-09-12
申请号：EP11190147.6
申请日：2007-05-03
申请人： NDS Limited
发明人： Millar, Keith , Harvey, Colin
IPC分类号： H04N7/167 , H04N7/173 , H04N21/61 , H04N21/4623 , H04N21/4405 , H04N21/643 , H04N21/438 , H04N21/2662
CPC分类号： H04N7/1675 , H04N7/17318 , H04N21/2662 , H04N21/4384 , H04N21/4405 , H04N21/4623 , H04N21/6125 , H04N21/64322
摘要： A method of decrypting a scrambled digital data item at a client, comprising receiving (1205/1511) actual control messages at said client, wherein each actual control message comprises control word generating information for generating a control word associated with the actual control message; storing (1207/1513) said actual control messages at said client; receiving (1211/1519) a portion of said scrambled digital data item at said client independently of said actual control messages; decrypting (1215/1523) said portion of said scrambled digital data item using said plurality of actual control messages without storing said scrambled digital data item at said client; stopping the receiving (1307) of said portion of said scrambled digital data item whilst continuing to receive actual control messages associated with a subsequent portion of said scrambled digital data item; receiving (1315), via a unicast, said subsequent portion of said scrambled digital data item; and decrypting (1319) said subsequent portion of said scrambled digital data item using said actual control messages. The scrambled digital data item comprises a plurality of segments of scrambled digital data, each segment of scrambled digital data being associated with one of said actual control messages and being scrambled with the control word associated with said one of said actual control messages, and wherein said scrambled digital data item further comprises a plurality of reference control messages, each segment of scrambled digital data comprising one of said reference control messages, each of said reference control messages comprising a control message reference value identifying the actual control message associated with the segment of scrambled digital data.
摘要翻译：一种在客户端解密加密数字数据项的方法，包括在所述客户端接收（1205/1511）实际控制消息，其中每个实际控制消息包括控制字产生信息，用于产生与实际控制消息相关的控制字; 在所述客户端存储（1207/1513）所述实际控制消息; 在所述客户端接收（1211/1519）所述加扰的数字数据项的一部分，而与所述实际控制消息无关; 使用所述多个实际控制消息解密（1215/1523）所述加扰的数字数据项的所述部分，而不在所述客户端存储所述加扰的数字数据项; 停止所述加密数字数据项的所述部分的接收（1307），同时继续接收与所述加扰数字数据项的后续部分相关联的实际控制消息; 经由单播接收（1315）所述加扰的数字数据项的所述后续部分; 以及使用所述实际控制消息来解密（1319）所述加扰的数字数据项的所述后续部分。加扰数字数据项包括多个加扰数字数据段，每段加扰数字数据与所述实际控制消息之一相关联，并且用与所述实际控制消息中的所述一个相关的控制字加扰，并且其中所述加扰数字数据项还包括多个参考控制消息，每个加扰数字数据段包括所述参考控制消息之一，所述参考控制消息中的每一个包括控制消息参考值，所述控制消息参考值标识与加扰段相关联的实际控制消息数字数据。

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