发明申请
- 专利标题: Condenser microphone
- 专利标题(中): 冷凝器麦克风
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申请号: US11980028申请日: 2007-10-30
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公开(公告)号: US20080219482A1公开(公告)日: 2008-09-11
- 发明人: Akiyoshi Sato
- 申请人: Akiyoshi Sato
- 申请人地址: JP Hamamatsu-shi
- 专利权人: Yamaha Corporation
- 当前专利权人: Yamaha Corporation
- 当前专利权人地址: JP Hamamatsu-shi
- 优先权: JP2006-295057 20061031
- 主分类号: H04R25/00
- IPC分类号: H04R25/00
摘要:
An electroacoustic transducer includes a condenser microphone, which includes a package having a cavity and a through-hole, a plate whose thickness is thinner than the length of the through-hole and which has a sound hole overlapping with the through-hole in plan view, and an electroacoustic transducer die, which is stored in the cavity of the package. The electroacoustic transducer die includes a fixed electrode and a diaphragm electrode, which are positioned opposite to each other and which are supported by and enclosed inside of a support. The sound hole of the plate is reduced in dimensions realizing a small sectional area and a small depth, thus realizing a high resonance frequency higher than the audio frequency range.