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:
Oct. 17, 2006
Filed:
Jun. 11, 2002
Jan Johannes Petrus Maria Beekmans, Eindhoven, NL;
Frits Anthony Steenhof, Eindhoven, NL;
Jan Johannes Petrus Maria Beekmans, Eindhoven, NL;
Frits Anthony Steenhof, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
Method of and system for detecting a watermark in MPEG-2 encoded video data during high-speed copying of the video data. A bus spy () selects independently coded frames, such as I-frames, from the video data and feeds the selected frames to a watermark detector () for detecting a watermark therein. By only supplying some of the frames to the watermark detector (), the average input data rate for the watermark detector () is much lower than the data rate during the high-speed copying. Various embodiments present various ways to efficiently supply the contents of the selected frames to the watermark detector ().