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:
Nov. 17, 2015
Filed:
Dec. 19, 2011
Kenta Niwa, Tokyo, JP;
Sumitaka Sakauchi, Tokyo, JP;
Kenichi Furuya, Tokyo, JP;
Yoichi Haneda, Tokyo, JP;
Kenta Niwa, Tokyo, JP;
Sumitaka Sakauchi, Tokyo, JP;
Kenichi Furuya, Tokyo, JP;
Yoichi Haneda, Tokyo, JP;
NIPPON TELGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
A sound enhancement technique that uses transfer functions aof sounds that come from each of one or more positions/directions that are assumed to be sound sources arriving at each microphone to obtain a filter for a position that is a target of sound enhancement, where i denotes a direction and g denotes a distance for identifying each of the positions. Each of the transfer functions ais represented by sum of a transmission characteristic of a direct sound that directly arrives from the position determined by the direction i and the distance g and a transmission characteristic of one or more reflected sounds produced by reflection of the direct sound off an reflective object. A filter that corresponds to the position that is the target of sound enhancement is applied to frequency-domain signals transformed from M picked-up sounds picked up with M microphones to obtain a frequency-domain output signal.