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. 28, 2017
Filed:
Mar. 28, 2014
Thomson Licensing, Issy de Moulineaux, FR;
Xiaoming Chen, Hannover, DE;
Peter Georg Baum, Hannover, DE;
Michael Arnold, Isernhagen, DE;
Ulrich Gries, Hannover, DE;
Thomson Licensing, Issy-les-Moulineaux, FR;
Abstract
Following transmission of a watermarked audio signal over an acoustic path causing echoes, reverberation and/or noise, watermark detection correlation result peak values are concentrated within a limited temporal range around main correlation result peaks, which limited temporal range is much smaller than the total correlation length. The watermark detection is based on the following: given ncorrelation result peak values v=(v, v, . . . , v) in an average or expected probability distribution for correlation result values for unmarked content, the probability is calculated that within windows covering the limited temporal range there are nor more values from a correlation result value set greater than or equal to these peaks v.