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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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