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:
Sep. 10, 2002
Filed:
Jan. 13, 2000
Päivi Valve, Tampere, FI;
Nokia Mobile Phones Ltd., Espoo, FI;
Abstract
A method and system for tracking human speakers using a plurality of acoustic sensors arranged in an array to detect the voice of the speakers within an angular range in order to determine a most favorable direction for detecting the voice in a detection period. A beamformer is used to form a plurality of beams each covering a different direction within the angular range and generate a signal responsive to the voice of the speakers for each beam. A comparator is used to periodically compare the power level of the signal of different beams in order to determine the most favorable detection direction according to the movement of the human speakers. A voice activity detection device is used to indicate to the comparator when the voice of the speakers is detected so that the comparator determines the most favorable detection direction based on the voice of the speakers and not the noise when the speakers are silent during the detection period.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile