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. 12, 2008
Filed:
Sep. 27, 2006
Applicants:
Robert D. Powell, Vashon, WA (US);
Mark Nitzberg, Brooklyn, NY (US);
Inventors:
Robert D. Powell, Vashon, WA (US);
Mark Nitzberg, Brooklyn, NY (US);
Assignee:
Digimarc Corporation, Beaverton, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to hiding codes in input data. In one embodiment, a method is provided including: obtaining input data associated with image or visual information; selecting portions of the input data to hide a plural-bit code based at least in part on predetermined data; and modifying selected portions of the input data to hide the plural-bit code at least in part on changing one or more values of the input data at or around the selected portions. Other embodiments are described and claimed as well.