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. 10, 2004
Filed:
Apr. 23, 2001
Applicant:
Inventors:
Avraham Levy, Kiryat Tivon, IL;
Doron Shaked, Haifa, IL;
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 ;
U.S. Cl.
CPC ...
G06K 9/00 ;
Abstract
A digital image is hardcopy watermarked by modifying transform coefficients in a transform domain representation of the digital image, the transforms coefficients being modified according to bit values of an n-bit message. A message in a hardcopy watermarked image is identified by statistically decoding a transform domain representation of the watermarked image.
Levy, Avraham. (2004). Hardcopy watermarking (U.S. Patent No. 6775393). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6775393
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile