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. 13, 2026
Filed:
Aug. 29, 2022
Applicant:
Digimarc Corporation, Beaverton, OR (US);
Inventors:
Brett A. Bradley, Portland, OR (US);
Nicholas Anderson, Colorado Springs, CO (US);
William Y. Conwell, Portland, OR (US);
Assignee:
Digimarc Corporation, Beaverton, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 13/11 (2006.01); G06T 7/70 (2017.01); H03M 13/00 (2006.01);
U.S. Cl.
CPC ...
H03M 13/1111 (2013.01); G06T 7/70 (2017.01); H03M 13/611 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/30204 (2013.01);
Abstract
A series of marks and absences of marks (voids) arrayed along one or a few mathematically-defined paths, define a message-conveying sparse path code. Multiple improvements in the forms of such codes, and related encoding and reading techniques, are detailed. Some such improvements provide greatly increased robustness and decreased visibility. A variety of other features and arrangements are also detailed.