Watermarking systems and methods

Details Watermarking systems and methods Watermarking systems and methods

2011-08-23

2011-08-23

Bali, Vikkram (Department: 2624)

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Reexamination Certificate

active

08005259

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.

REFERENCES:
patent: 5930369 (1999-07-01), Cox et al.
patent: 6654479 (2003-11-01), Liao et al.
patent: 6792130 (2004-09-01), Jones et al.
patent: 2001/0055390 (2001-12-01), Hayashi et al.

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