发明名称 |
Geographic-based watermarking keys |
摘要 |
<p>The present invention relates generally to digital watermarking and steganography. In one implementation, a method includes determining a current geographic area of the cell phone; selecting a first digital watermark detector that is associated with the current geographic area, a selected first digital watermark detector being selected from a plurality of different digital watermark detectors; and controlling the cell phone to employ the selected first digital watermark detector to analyze a signal to obtain a digital watermark message there from, wherein the selected first digital watermark detector corresponds to a particular digital watermark embedder that is uniquely assigned to the geographic area.</p> |
申请公布号 |
EP2372944(A2) |
申请公布日期 |
2011.10.05 |
申请号 |
EP20100181432 |
申请日期 |
2007.02.16 |
申请人 |
DIGIMARC CORPORATION |
发明人 |
ANDREWS, HOYET, HARRISON, III;ROSOVE, STUART, FILIP;RODRIGUEZ, TONY, F. |
分类号 |
H04L9/08;G06F21/10 |
主分类号 |
H04L9/08 |
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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