发明名称 |
COMMUNICATIONS RECEIVER EMPLOYING VARACTOR CONTROLLED TUNING STAGES |
摘要 |
In a communications receiver the local oscillator output signal is converted to a voltage signal proportional to the oscillator frequency. That voltage signal is applied to the voltage-sensitive tuning elements in the receiver's tuning stages to vary the tuning parameters of these elements. An improved frequency-to-voltage converter effectively converts the oscillator output to the tuning voltage signal.
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申请公布号 |
US3657654(A) |
申请公布日期 |
1972.04.18 |
申请号 |
USD3657654 |
申请日期 |
1969.09.11 |
申请人 |
GENERAL INSTRUMENT CORP. |
发明人 |
VINCENT P. FRIBERG |
分类号 |
H03J3/18;(IPC1-7):H04B1/16;H03J3/28 |
主分类号 |
H03J3/18 |
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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