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:
Jan. 01, 2013
Filed:
Nov. 24, 2008
Applicants:
Shen-ge Wang, Fairport, NY (US);
Reiner Eschbach, Webster, NY (US);
William A. Fuss, Rochester, NY (US);
Inventors:
Shen-Ge Wang, Fairport, NY (US);
Reiner Eschbach, Webster, NY (US);
William A. Fuss, Rochester, NY (US);
Assignee:
Xerox Corporation, Norwalk, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed are methods/systems to embed a watermark into a contone image. Specifically, the disclosed methods and systems spatially modulate a contone image substantially adjacent a watermark area according to a first polarization and spatially modulate the contone image substantially within the watermark area according to a second polarization. These spatially modulated images may then be subsequently processed, stored, communicated and/or rendered.