发明名称 |
Electret microphone buffer circuit with significantly enhanced power supply rejection |
摘要 |
A microphone buffer circuit being adaptable for connection to a power source is disclosed. The microphone buffer circuit includes an input transistor operably connected between an input and an output for buffering an input signal. The microphone buffer circuit includes a means for reducing power supply noise capable of being coupled to the input transistor wherein the means being operably connected to the input transistor and the power source.
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申请公布号 |
US7688987(B2) |
申请公布日期 |
2010.03.30 |
申请号 |
US20030411730 |
申请日期 |
2003.04.11 |
申请人 |
KNOWLES ELECTRONICS, LLC |
发明人 |
BOOR STEVEN E. |
分类号 |
H04R3/00;H03F3/185;H03F3/50 |
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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