The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2011
Filed:
Apr. 20, 2010
Kenneth L. Levy, Stevenson, WA (US);
Ravi K. Sharma, Portland, OR (US);
Lance Lixin Shen, Tualatin, OR (US);
John Stach, Tualatin, OR (US);
Kenneth L. Levy, Stevenson, WA (US);
Ravi K. Sharma, Portland, OR (US);
Lance Lixin Shen, Tualatin, OR (US);
John Stach, Tualatin, OR (US);
Digimarc Corporation, Beaverton, OR (US);
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.