发明申请
- 专利标题： Multiple Watermarks In Content
- 专利标题（中）： 内容中的多个水印
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申请号： US11420977申请日： 2006-05-30
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公开(公告)号： US20060210109A1公开(公告)日： 2006-09-21
- 发明人: Geoffrey Rhoads , Ammon Gustafson
- 申请人： Geoffrey Rhoads , Ammon Gustafson
- 主分类号： G09C5/00
- IPC分类号： G09C5/00 ; G06K9/00 ; H04L9/00 ; G06K9/36
摘要：
Image, video, and/or audio data is encoded with at least first and second watermarks. In one implementation a method includes: receiving content; embedding a first watermark signal in the content; compressing the content; embedding a second watermark signal in the content. The first watermark signal and the second watermark signal are designed to respond differently to at least a first type of signal processing. Other implementations are also provided.
公开/授权文献
- US07266217B2 Multiple watermarks in content 公开/授权日：2007-09-04
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