发明名称 |
Method of protecting high definition video signal |
摘要 |
A system controls reproduction of a video transmission between a transmitter and a receiver. The system includes an encryptor with an offset generator adapted to receive the encrypted frame key and to generate a sequence of pseudo-random values for the color component; and an adder coupled to the offset generator and to the color component signal for providing an encoded color component signal. The system also includes a decryptor with a decryptor offset generator adapted to receive the encrypted frame key and to generate a decryptor pseudo-random value for the color component; and a subtractor coupled to the offset generator and to the color component signal for subtracting the offset signal from the color component signal.
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申请公布号 |
US6925181(B2) |
申请公布日期 |
2005.08.02 |
申请号 |
US20030354454 |
申请日期 |
2003.01.30 |
申请人 |
LSI LOGIC CORPORATION |
发明人 |
KOHN LESLIE;BARR DAVID A.;LE GALL DIDIER |
分类号 |
H04N7/167;H04N7/169;H04N11/24;(IPC1-7):H04N7/167;H04N9/75 |
主分类号 |
H04N7/167 |
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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