发明申请
- 专利标题： MICROPHONE UNIT
- 专利标题（中）： 麦克风单元
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申请号： US12866794申请日： 2009-02-06
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公开(公告)号： US20110158450A1公开(公告)日： 2011-06-30
- 发明人: Fuminori Tanaka , Ryusuke Horibe , Takeshi Inoda , Rikuo Takano , Kiyoshi Sugiyama , Toshimi Fukuoka , Masatoshi Ono
- 申请人： Fuminori Tanaka , Ryusuke Horibe , Takeshi Inoda , Rikuo Takano , Kiyoshi Sugiyama , Toshimi Fukuoka , Masatoshi Ono
- 申请人地址： JP Daito-shi, Osaka
- 专利权人： FUNAI ELECTRIC CO., LTD.,Funai Electric Advanced Applied Technology Research Institute Inc.
- 当前专利权人： FUNAI ELECTRIC CO., LTD.,Funai Electric Advanced Applied Technology Research Institute Inc.
- 当前专利权人地址： JP Daito-shi, Osaka
- 优先权： JP2008-029573 20080208
- 国际申请： PCT/JP2009/052026 WO 20090206
- 主分类号： H04R1/02
- IPC分类号： H04R1/02
摘要：
To provide a downsized microphone unit in which a differential microphone is densely mounted thereon.The microphone unit has a cover portion 30 and a microphone substrate 10, in which a first substrate internal space 15 is communicated with a cover portion internal space 32 via a first substrate opening 11 and a cover portion opening 31, and is communicated with the outside via a second substrate opening 12, a second substrate internal space 16 is communicated with the cover portion internal space 32 via a third substrate opening 13 and a cover portion opening 31, and is communicated with the outside via a fourth substrate opening 14, a partition portion 20 covers a communication aperture between the first substrate opening 11 and the cover portion opening 31, and a diaphragm 22 covers at least a part of the communication aperture between the first substrate opening 11 and the cover portion opening 31.
公开/授权文献
- US08649545B2 Microphone unit 公开/授权日：2014-02-11
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