发明申请
- 专利标题: ACOUSTIC TRANSDUCER DEVICE
- 专利标题(中): 声学传感器装置
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申请号: US12021220申请日: 2008-01-28
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公开(公告)号: US20090190771A1公开(公告)日: 2009-07-30
- 发明人: Po-Hsun SUNG
- 申请人: Po-Hsun SUNG
- 申请人地址: TW Hsinchu
- 专利权人: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
- 当前专利权人: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
- 当前专利权人地址: TW Hsinchu
- 主分类号: G10K11/16
- IPC分类号: G10K11/16 ; A61F11/06
摘要:
A noise attenuation device comprising a first tube for receiving an acoustic signal, a first housing defining a first cavity between a first surface and a second surface, the first tube being coupled to the first housing at the first surface for conducting the acoustic signal into the first cavity, wherein one end of the first tube contacts the first surface at a first region with a first area, a second housing defining a second cavity between a first surface and a second surface, and a second tube coupled between the second surface of the first housing and the first surface of the second housing for conducting the acoustic signal between the first cavity and the second cavity, wherein one end of the second tube contacts the second surface of the first housing at a second region with a second area, wherein the first tube, the first housing and the second tube form a filter structure and the area of the first surface of the first housing is greater than the first area and the area of the second surface of the first housing is greater than the second area.
公开/授权文献
- US08184821B2 Acoustic transducer device 公开/授权日:2012-05-22
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