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1. CN102812726 - Microphone

官庁 中華人民共和国
出願番号 201180015721.4
出願日 10.03.2011
公開番号 102812726
公開日 05.12.2012
特許番号 102812726
特許付与日
公報種別 A
CPC
出願人 Hosiden Corporation
発明者 Harano Hiroyuki
Yamagata Hiroshi
Ono Kazuo
Nakanishi Kensuke
代理人 zhang jinsong
発明の名称
(EN) Microphone
(ZH) 传声器
要約
(EN)
Disclosed is a microphone comprising capsules in which a pair of diaphragms and a pair of back electrode plates respectively facing the diaphragms are provided so that vibration noise caused by mechanical vibration can be cancelled, wherein a substrate (17) is arranged at an intermediate portion of the capsules (18, 19). A pair of diaphragms (11, 12) are arranged with the substrate (17) therebetween so as to closely face the plate surface of the substrate (17). Thereby, the difference in distances from a vibration source to the two diaphragms (11, 12) can be decreased, and a microphone having an increased effect of cancelling the vibration noise caused by mechanical vibration can be obtained.