| 发明名称 |
Electret Condenser Microphone |
| 摘要 |
The electret condenser microphone according to the present invention includes an electret condenser microphone unit including a diaphragm and a fixed pole disposed opposite to the diaphragm; and a three-pin plug including a hot terminal and a cold terminal and being capable of producing a balanced output, wherein each of the hot terminal and the cold terminal is coupled to an FET that functions as an impedance converter a gate terminal of one of the FETs is coupled to the diaphragm, a gate terminal of the other of the FETs is coupled to the fixed pole, and the gate terminal of the FET coupled to the cold terminal is AC-grounded. |
| 申请公布号 |
US2015104056(A1) |
申请公布日期 |
2015.04.16 |
| 申请号 |
US201414503679 |
申请日期 |
2014.10.01 |
| 申请人 |
Akino Hiroshi |
发明人 |
Akino Hiroshi |
| 分类号 |
H04R3/00;H04R1/08 |
主分类号 |
H04R3/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An electret condenser microphone comprising:
an electret condenser microphone unit including a diaphragm and a fixed pole disposed opposite to the diaphragm; and a three-pin plug including a hot terminal and a cold terminal and being capable of producing a balanced output, wherein each of the hot terminal and the cold terminal is coupled to an FET functioning as an impedance converter, a gate terminal of one of the FETs is coupled to the diaphragm, a gate terminal of the other of the FETs is coupled to the fixed pole, and the gate terminal of the FET coupled to the cold terminal is AC-grounded. |
| 地址 |
Tokyo JP |
