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:
Sep. 15, 2020
Filed:
Jan. 14, 2019
Applicant:
Digimarc Corporation, Beaverton, OR (US);
Inventors:
John F. Stach, Portland, OR (US);
Ajith M. Kamath, Beaverton, OR (US);
Assignee:
Digimarc Corporation, Beaverton, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 1/00 (2006.01);
U.S. Cl.
CPC ...
G06T 1/005 (2013.01); G06T 1/0028 (2013.01); G06T 1/0064 (2013.01); G06T 2201/0061 (2013.01); G06T 2201/0065 (2013.01); G06T 2201/0202 (2013.01);
Abstract
Differential modulation schemes encode a data channel within host signal or noisy environment in a manner that is robust, flexible to achieve perceptual quality constraints, and provides improved data capacity. Differential arrangements enable a decoder to suppress host signal or other background signal interference when detecting, synchronizing and extracting an encoded data channel. They also enable the incorporation of implicit or explicit synchronization components, which are either formed from the data signal or are complementary to it.