发明名称 |
Radio-frequency module with phase lock loop and frequency setting |
摘要 |
A radio-frequency module detachably mounted to a transmitter in a radio-control apparatus to supply a high frequency signal to a transmitter. The module includes a phase-lock loop (PLL) circuit along with low pass filters and a voltage controlled oscillator to form a PLL oscillator loop. A rotary switch which is manually set provides an indication to a microprocessor of the desired frequency. The microprocessor supplies the PLL circuit with frequency data. An error voltage is generated by the low pass filters.
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申请公布号 |
US5710525(A) |
申请公布日期 |
1998.01.20 |
申请号 |
US19950577249 |
申请日期 |
1995.12.22 |
申请人 |
FUTABA DENSHI KOGYO K.K. |
发明人 |
TANAKA, MASAHIRO;SAKUMA, SUSUMU |
分类号 |
A63H30/04;H03J1/00;H04B1/40;H04Q9/00;H04Q9/14;(IPC1-7):H03L7/093;H03L7/095;H04L27/12 |
主分类号 |
A63H30/04 |
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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