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US Patent 7209571 Authenticating metadata and embedding metadata in watermarks of media signals

Patent 7209571 was granted and assigned to Digimarc on April, 2007 by the United States Patent and Trademark Office.

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Patent abstract

A steganographic embedder associates data with a media signal by encoding the data, a link to the data, or a combination of both into the media signal. The embedder may be located in an media signal capture device or an external process or device.

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