发明名称 |
IMPROVEMENTS IN WATERMARK EXTRACTION EFFICIENCY |
摘要 |
Methods, devices, and computer program products facilitate the application of content usage rules based on watermarks that are embedded in a content. The required content screening operations, including watermark extraction and the application of content usage enforcement actions, are organized as separate tasks. These tasks can be conducted at different times by different devices. The watermark extraction results are stored in a secure location and can be accessed by other devices at different times. These operations can be conducted by one or more trusted devices that reside in a home network. The trustworthiness of the devices can be ascertained during a device authentication process. Further, certain device capabilities can be ascertained either as part of the device authentication process, or through additional communications between the devices. |
申请公布号 |
WO2012037422(A2) |
申请公布日期 |
2012.03.22 |
申请号 |
WO2011US51857 |
申请日期 |
2011.09.15 |
申请人 |
VERANCE CORPORATION;WINOGRAD, JOSEPH, M.;PETROVIC, RADE;ZHAO, JIAN |
发明人 |
WINOGRAD, JOSEPH, M.;PETROVIC, RADE;ZHAO, JIAN |
分类号 |
G06F21/24;G06F9/44 |
主分类号 |
G06F21/24 |
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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