发明申请
- 专利标题: CAPACITOR MICROPHONE
- 专利标题(中): 电容麦克风
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申请号: US11470991申请日: 2006-09-07
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公开(公告)号: US20070058825A1公开(公告)日: 2007-03-15
- 发明人: Yukitoshi Suzuki , Tamito Suzuki
- 申请人: Yukitoshi Suzuki , Tamito Suzuki
- 专利权人: YAMAHA CORPORATION
- 当前专利权人: YAMAHA CORPORATION
- 优先权: JPP2005-261804 20050909; JPP2006-167308 20060616; JPP2006-188459 20060707; JPP2006-223425 20060818
- 主分类号: H04R25/00
- IPC分类号: H04R25/00
摘要:
A capacitor microphone is constituted by a plate having a fixed electrode, a diaphragm including a center portion and at least one near-end portion that is fixed to the outer periphery, in which the center portion having a vibrating electrode, which is positioned relative to the fixed electrode and which vibrates in response to sound waves, is increased in rigidity in comparison with the near-end portion; and a spacer that is fixed to the plate and the near-end portion of the diaphragm and that has an air gap formed between the plate and the diaphragm. Alternatively, a diaphragm electrode is horizontally supported by extension arms extended from a circular plate thereof and is vertically held in a hanging state being apart from a fixed electrode with a controlled distance therebetween.
公开/授权文献
- US08059842B2 Capacitor microphone 公开/授权日:2011-11-15