发明名称 |
Digital Watermark Systems and Methods |
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
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申请公布号 |
US2008130944(A1) |
申请公布日期 |
2008.06.05 |
申请号 |
US20070877486 |
申请日期 |
2007.10.23 |
申请人 |
JOHNSON ANDREW;BIGGAR MICHAEL |
发明人 |
JOHNSON ANDREW;BIGGAR MICHAEL |
分类号 |
G06K9/00;G06T1/00;G10L21/00;H04N1/32;H04N7/26 |
主分类号 |
G06K9/00 |
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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