Remote control circuit employing frequency/direct signal convert

Details Remote control circuit employing frequency/direct signal convert Remote control circuit employing frequency/direct signal convert

1979-10-16

1982-11-30

Caldwell, Sr., John W.

Communications: electrical

Continuously variable indicating

With meter reading

34082569, 3408257, 331 1R, 331 11, 331 18, 332 19, 455113, 455119, G08C 1900

Patent

active

043618375

ABSTRACT:
A remote control circuit which operates on a frequency basis and essentially with analog signals. The remote control circuit includes at the transmitting end a controlled oscillator, a frequency/direct signal converter and a comparator connected together into a frequency control loop. A transmitter is also provided which is fed by the oscillator of the control loop. A control path including a frequency signal source and a frequency/direct signal converter is provided at the transmitting end and receives its input signal from the frequency signal source. The converter of the control path is connected with the one input of the comparator of the control circuit. At the receiving end there is provided an amplifier, a frequency/direct signal converter and an evaluation circuit.

REFERENCES:
patent: 3087121 (1963-04-01), Bell
patent: 3393380 (1968-07-01), Webb
patent: 3587003 (1971-06-01), Chastagnier
patent: 3944925 (1976-03-01), De Laune
patent: 4131861 (1978-12-01), Malaviya
patent: 4207539 (1980-06-01), Minakuchi
"Analog Multiplier/Divider Simplifies Frequency Locking", Electronics, Jul. 5, 1973, pp. 99, 100.

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