发明名称 |
Received signal frequency indicating system |
摘要 |
There is provided a received signal frequency indicating system for indicating a frequency of a signal received by a heterodyne type receiver, and, when a local oscillator signal of the receiver and a d.c. voltage are transmitted through a coaxial cable to a remote place, the received signal frequency is indicated there in a digital form.
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申请公布号 |
US4024477(A) |
申请公布日期 |
1977.05.17 |
申请号 |
US19750573154 |
申请日期 |
1975.04.30 |
申请人 |
NIPPON SOKEN, INC. |
发明人 |
YAMAGUCHI, HIROAKI;FUJINAMI, HIROSHI |
分类号 |
G01R23/10;H03J1/04;H03J3/14;H04B1/16;H04B1/28;(IPC1-7):H04B1/16 |
主分类号 |
G01R23/10 |
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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