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. 03, 2013
Filed:
May. 28, 2008
Satoshi Ukai, Hamamatsu, JP;
Ryo Tanaka, Hamamatsu, JP;
Toshiaki Ishibashi, Fukuroi, JP;
Yamaha Corporation, , JP;
Abstract
An acoustic apparatus without increasing noise etc. even when plural directional microphones collect sounds from a place of the same distances is provided. Sound signals output from the microphone arrays are subjected to phase shift by phase shift circuitsA toH, and the sound signals are combined by an adder. The phase shift circuitsA toH performs phase shifts according to installation positions of the microphone arrays. The phase shift circuitA makes the shift 0 degree, the phase shift circuitB makes the shift 45 degrees, the phase shift circuitC makes the shift 90 degrees, and sequentially to the phase shift circuitH, the shifts are made according to rotational angles.