发明名称 |
Detection and control of diaphragm collapse in condenser microphones |
摘要 |
A condenser microphone is provided having a transducer element. A diaphragm has an electrically conductive portion. A back-plate has an electrically conductive portion. A DC bias voltage element is operatively coupled to the diaphragm and the back-plate. A collapse detection element is adapted to determine a physical parameter value related to a separation between the diaphragm and the back-plate. A collapse control element is adapted to control the DC bias voltage element based on the determined physical parameter value.
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申请公布号 |
US7548626(B2) |
申请公布日期 |
2009.06.16 |
申请号 |
US20050133877 |
申请日期 |
2005.05.20 |
申请人 |
SONION A/S |
发明人 |
STENBERG LARS JOERN;POULSEN JENS KRISTIAN;VAN HALTEREN AART ZEGER |
分类号 |
H04R3/00;H04R19/04 |
主分类号 |
H04R3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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