发明名称 |
METHOD AND APPARATUS FOR CONTROLLING PAIRED OPERATION OF A CONDITIONAL ACCESS MODULE AND AN INTEGRATED RECEIVER AND DECODER |
摘要 |
A method and apparatus that selectively pairs a receiver (132) configured to receive a media program encrypted according to a media encryption key and a conditional access module. In one embodiment, the apparatus comprises a security module (508) for receiving and modifying the media encryption key, and a transport module (412), comprising a decryptor (524) for decrypting the media program. The media encryption key has a portion indicating a first state in which the media program is to be viewable by a set of receivers or a second state in which the media program is to be viewable only by a subset of the set of receivers. |
申请公布号 |
WO03028287(A1) |
申请公布日期 |
2003.04.03 |
申请号 |
WO2002US29881 |
申请日期 |
2002.09.20 |
申请人 |
HUGHES ELECTRONICS CORPORATION;NDS LIMITED;KAHN, RAYNOLD, M.;LEVY, JORDAN |
发明人 |
KAHN, RAYNOLD, M.;LEVY, JORDAN |
分类号 |
H04L9/00;H04L9/08;H04L9/16;H04N7/16;H04N7/167;H04N21/266;H04N21/418;H04N21/4367;H04N21/4405;H04N21/4623;H04N21/472;H04N21/61 |
主分类号 |
H04L9/00 |
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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