发明名称 |
Selective encryption encoding |
摘要 |
In certain embodiments, a selective encryption encoder has a packet identifier that identifies packets of a specified packet type. The specified packet type includes packets carrying data representing a video slice wherein the video slice contains a larger amount of data than a threshold amount of data. A packet duplicator duplicates the identified packets to produce first and second sets of the identified packets. Packets are sent and received 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. This abstract should not be considered limiting since embodiments consistent with the present invention may involve more, different or fewer elements.
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申请公布号 |
US7792294(B2) |
申请公布日期 |
2010.09.07 |
申请号 |
US20070708418 |
申请日期 |
2007.02.20 |
申请人 |
SONY CORPORATION;SONY CORPORATION, INC. |
发明人 |
CANDELORE BRANT L.;DEROVANESSIAN HENRY;PEDLOW, JR. LEO M. |
分类号 |
H04N7/167;G06T7/20;H04B1/66;H04L9/00;H04L9/14;H04L29/06;H04N7/12;H04N11/02;H04N11/04 |
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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