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. 07, 2003
Filed:
Nov. 04, 1999
Applicant:
Inventors:
Jaap A. Haitsma, Eindhoven, NL;
Antonius A. C. M. Kalker, Eindhoven, NL;
Adrianus J. M. Denissen, Eindhoven, NL;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/500 ;
U.S. Cl.
CPC ...
G06F 1/500 ;
Abstract
An improved method and arrangement for detecting a watermark in an information (e.g. image or video) signal are disclosed. The detection is more reliable and less vulnerable to image processing by subjecting the suspect image (q) and the watermark to be detected (w) to Symmetrical Phase Only Matched Filtering ( ) prior to detecting ( ) the amount of correlation (d) between said signals.
Quick Actions:
Haitsma, Jaap. (2003). Watermark detection (U.S. Patent No. 6505223). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6505223
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile