| 发明名称 |
FM DETECTING CIRCUIT HAVING A PIEZOELECTRIC FILTER |
| 摘要 |
An FM detecting circuit comprises a band pass filter composed of at least one piezoelectric resonator having three electrodes or a plurality of piezoelectric resonators having two electrodes and a transistor.
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| 申请公布号 |
US3648184(A) |
申请公布日期 |
1972.03.07 |
| 申请号 |
USD3648184 |
申请日期 |
1969.08.14 |
| 申请人 |
MURATA MFG. CO. LTD. |
发明人 |
SATORU FUJISHIMA;HIDEO HONMA |
| 分类号 |
H03D3/16;(IPC1-7):H03D1/00 |
主分类号 |
H03D3/16 |
| 代理机构 |
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代理人 |
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