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:
Jul. 10, 2012
Filed:
Apr. 02, 2010
Koji Kushida, Shizuoka-ken, JP;
Koji Kushida, Shizuoka-ken, JP;
Yamaha Corporation, Shizuoka-Ken, JP;
Abstract
A microphone array signal processing apparatus which is capable of picking up sound in a low frequency band even with a compact microphone array. The microphone array signal processing apparatus is comprised of delay devices (-to-M) that add delays to the respective ones of a plurality of sound signals output from the respective ones of a plurality of microphones constituting the microphone array, an adder () that sums the plurality of sound signals with the respective delays added thereto, a harmonic structure detecting section () that detects a harmonic structure of sound included in the sound signal, and a filtering processing section () that selectively passes predetermined frequency components based upon the detected harmonic structure.