发明名称 |
High-frequency input circuit for two inputs |
摘要 |
A high-frequency input circuit for two inputs has a pair of first and second pi variable attenuation circuits each composed of three P-I-N diodes, some of which are shared by both of the circuits. The P-I-N diodes serve as attenuator elements in the attenuation circuits and also as switching elements for switching between the first and second attenuation circuits.
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申请公布号 |
US4369414(A) |
申请公布日期 |
1983.01.18 |
申请号 |
US19800212100 |
申请日期 |
1980.12.02 |
申请人 |
ALPS ELECTRIC CO. LTD. |
发明人 |
AOKI, KAZUHARU;IGARASHI, SADAO |
分类号 |
H03G1/00;H03G3/02;H03G3/10;H03H7/25;H03H7/46;H03K17/76;H04B1/18;H04N5/44;(IPC1-7):H03H7/24 |
主分类号 |
H03G1/00 |
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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