发明名称 System and method for processing conditional access data
摘要 A computer-implemented method is disclosed comprising: storing a first encrypted multimedia stream on a storage device as the stream is broadcast by a content provider; storing a stream of conditional access data on the storage device, the stream of conditional access data associated with the multimedia stream; and decrypting the first encrypted multimedia stream from a specified point within the encrypted multimedia stream using the stream of conditional access data, responsive to a user request to play back the encrypted multimedia stream from the specified point.
申请公布号 US2002116705(A1) 申请公布日期 2002.08.22
申请号 US20010790076 申请日期 2001.02.20
申请人 PERLMAN STEPHEN G.;SLEATOR MICHAEL 发明人 PERLMAN STEPHEN G.;SLEATOR MICHAEL
分类号 H04N5/44;H04N5/781;H04N5/783;H04N5/913;H04N7/16;H04N7/167;H04N7/173;H04N9/804;H04N9/82;(IPC1-7):H04N7/167 主分类号 H04N5/44
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