Frequency-synthesizer type transceiver

Details Frequency-synthesizer type transceiver Frequency-synthesizer type transceiver

1976-06-14

1978-06-27

Murray, Richard

325 20, H04B 140

Patent

active

040978052

ABSTRACT:
This invention provides a frequency-synthesizer type transceiver having a voltage-controlled oscillator and means for comparing the phases of mixed frequency, whereby the voltage-controlled oscillator is regulated by signals resulting from the phase comparison to generate a controlled frequency serving as the local oscillator frequency for transmitting and receiving. The frequency-synthesizer type transceiver further includes a means for selectively switching from the one carrier frequency to the other to differentiate the transmitting and receiving frequencies.

REFERENCES:
patent: 3944925 (1976-03-01), DeLaune
patent: 3983484 (1976-09-01), Hodama

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