发明名称 Computer-implemented method and system for perceptual cryptography in file-sharing environments
摘要 A computer-implemented method and system for perceptual cryptography in file-sharing environments are disclosed. The method and system include providing access to a quality-degraded version of a content bit-stream, and providing decryption keys for rendering the content bit-stream without quality degradation.
申请公布号 US2007189578(A1) 申请公布日期 2007.08.16
申请号 US20060394958 申请日期 2006.03.31
申请人 MACROVISION CORPORATION 发明人 TORRUBIA ANDRES M.
分类号 G06K9/00 主分类号 G06K9/00
代理机构 代理人
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