发明名称 |
Electrostatic transducer |
摘要 |
An electrostatic transducer comprising a vibrating plate or electret diaphragm which has a monocharge on its surface and including a pair of back electrodes clamping the electret therebetween and including an electrically conductive electrostatic shield covering the back electrodes so as to increase the fidelity and life of the transducer.
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申请公布号 |
US3942029(A) |
申请公布日期 |
1976.03.02 |
申请号 |
US19740489400 |
申请日期 |
1974.07.17 |
申请人 |
SONY CORPORATION |
发明人 |
KAWAKAMI, HIROTAKE;TAKADA, KANTARO |
分类号 |
H04R19/00;H04R19/01;(IPC1-7):H04R19/00 |
主分类号 |
H04R19/00 |
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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