发明授权
- 专利标题： Method for generating a temporally threaded CMI watermark
- 专利标题（中）： 用于生成时间线程CMI水印的方法
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申请号： US12909660申请日： 2010-10-21
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公开(公告)号： US08230227B2公开(公告)日： 2012-07-24
- 发明人: David G Grossman
- 申请人： David G Grossman
- 申请人地址： US DE Wilmington
- 专利权人： Warped Prism Limited Liability Company
- 当前专利权人： Warped Prism Limited Liability Company
- 当前专利权人地址： US DE Wilmington
- 代理机构： Schwabe, Williamson & Wyatt P.C.
- 主分类号： H04L9/00
- IPC分类号： H04L9/00 ; H04N7/167
摘要：
Disclosed is a method for generating a temporally threaded copyright management information watermark where fragile watermarks containing CMI are spread throughout a digital work temporally. In one embodiment of this invention, the copyright management information is divided into a multitude of copyright management information subparts; the copyright management subparts are applied to fragile sub-watermarks; and fragile watermarks are applied to temporally separated portions of the digital work.
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