发明名称 |
CONDITIONAL ACCESS SYSTEM FOR DIGITAL RECEIVERS |
摘要 |
A method for providing conditional access (i.e., managing access) to a received scrambled audio/visual (A/V) signal from a variety of sources by utilizing secret sharing for key recovery. Secret sharing eliminates the necessity to protect and transfer the complete descrambling keys between devices, because a portion of the key is stored in the device or a smart card coupled thereto. |
申请公布号 |
EP1040661(B1) |
申请公布日期 |
2001.10.31 |
申请号 |
EP19980962970 |
申请日期 |
1998.12.09 |
申请人 |
THOMSON LICENSING S.A. |
发明人 |
ESKICIOGLU, AHMET, MURSIT;OZKAN, MEHMET, KEMAL;BEYERS, BILLY, WESLEY, JR. |
分类号 |
H04H20/00;H04L9/08;H04L9/32;H04N7/16;H04N7/167 |
主分类号 |
H04H20/00 |
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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