发明授权
- 专利标题： Digital watermark systems and methods
- 专利标题（中）： 数字水印系统和方法
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申请号： US11877486申请日： 2007-10-23
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公开(公告)号： US08364966B2公开(公告)日： 2013-01-29
- 发明人: Andrew Johnson , Michael Biggar
- 申请人： Andrew Johnson , Michael Biggar
- 申请人地址： US OR Beaverton
- 专利权人： Digimarc Corporation
- 当前专利权人： Digimarc Corporation
- 当前专利权人地址： US OR Beaverton
- 优先权： AUPO5218/97 19970220
- 主分类号： G06F21/00
- IPC分类号： G06F21/00
摘要：
A digital watermark is added to audio or visual content. An illustrative embodiment permutes the content, alters the permuted content to encode a watermark, and inverse-permutes the content to return same to substantially its original form. Related watermark decoding methods are also detailed, as are ancillary features and techniques.
公开/授权文献
- US20080130944A1 Digital Watermark Systems and Methods 公开/授权日：2008-06-05
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