Watermarking systems and methods
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United States of America Patent
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Apr 20, 2010
Grant Date -
Dec 9, 2004
app pub date -
Feb 5, 2004
filing date -
Feb 5, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
Various improvements and applications for digital watermarking technology are detailed. One concerns techniques for making watermarks resistant to malicious attacks. Another involves using digital watermarking with ID cards and credentials, such as a watermarked driver's license conveying a user's cryptographic PKI. Still another uses digital watermarks in connection with automated compliance audits for corporate users of electronic content. A variety of other technologies are also detailed.
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