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:
Mar. 20, 2007
Filed:
Nov. 05, 2001
Applicant:
André Weimerskirch, Eppstein, DE;
Inventor:
André Weimerskirch, Eppstein, DE;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); H04L 9/32 (2006.01); G06F 11/30 (2006.01); G06F 12/14 (2006.01); G06F 11/00 (2006.01); G06F 7/39 (2006.01); G11C 11/34 (2006.01); H03K 19/173 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for authorizing the rendering of a digital recording. A first section and a last section of a track is first identified. A watermark is then decoded from the first and last sections of the track. It is then determined if at least one reserved bit is marked in the watermark in each of the first and last sections of the track. If so, it is determined if the sequence IDs of sections interposed between the first and last sections of the track are in sequential order. If both conditions are met, the rendering is authorized.