发明名称 |
VIDEO SLICE AND ACTIVE REGION BASED DUAL PARTIAL ENCRYPTION |
摘要 |
A selective encryption encoder and method of dual selective encryption. The selective encryption encoder has a packet identifier that identifies packets of at least one specified packet type, the at least one specified packet type being any of a plurality of packet types including packets containing a video slice headers or packets carrying data appearing in an active area of the image. A packet duplicator duplicates the identified packets to produce first and second sets of the identified packets. The packets are sent to and from a primary encryption encoder to encrypt the first set of identified packets under a first encryption method. A secondary encrypter encrypts the second set of identified packets under a second encryption method.
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申请公布号 |
CA2413980(A1) |
申请公布日期 |
2003.07.02 |
申请号 |
CA20022413980 |
申请日期 |
2002.12.10 |
申请人 |
SONY ELECTRONICS INC. |
发明人 |
CANDELORE, BRANT L.;DEROVANESSIAN, HENRY;PEDLOW, LEO M., JR. |
分类号 |
H04L9/28;H04N7/167;(IPC1-7):H04L9/28 |
主分类号 |
H04L9/28 |
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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