Method and apparatus for embedding watermarks
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United States of America Patent
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Dec 2, 2008
Grant Date -
Dec 27, 2007
app pub date -
Dec 9, 2005
filing date -
Jun 13, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Methods and apparatus for embedding a watermark are disclosed. In an example method, one or more frames associated with a compressed digital data stream (240) is identified. Each of the one or more frames is unpacked to determine a plurality of transform coefficient sets (320). The plurality of transform coefficient sets (320) is modified to embed the watermark (230).
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