Automatic master-slave carrier switching circuit

Details Automatic master-slave carrier switching circuit Automatic master-slave carrier switching circuit

1974-12-19

1976-06-22

Libman, George H.

325 49, 325 58, H04B 138

Patent

active

039654214

ABSTRACT:
A suppressed carrier, communications system including at least two spaced apart transceivers wherein a portion of the carrier is transmitted for synchronizing both transmitters and receivers, the apparatus including a carrier oscillator and filters for separating the transmitted carrier from the received signal with a local and remote transistor switch and a priority lockout flip-flop for applying the internal carrier oscillator when the local transmitter is operated with no signal being received and the separated carrier is utilized when a signal is received before the local transmitter is operated.

REFERENCES:
patent: 2510461 (1950-06-01), Bruck et al.
patent: 2757279 (1956-07-01), Vosburgh
patent: 2766324 (1956-10-01), Peth
patent: 3283074 (1966-11-01), Csicsatka
patent: 3750179 (1973-07-01), Tewksbury
patent: 3808368 (1974-04-01), Pitroda
patent: 3813598 (1974-05-01), Stuart
patent: 3925729 (1975-12-01), Amoroso

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