Simulcast transmission system

Details Simulcast transmission system Simulcast transmission system

1979-02-05

1982-02-23

Ng, Jin F.

Telecommunications

Transmitter and receiver at separate stations

Single message via plural carrier wave transmission

455 53, 455 72, 455 76, 358149, H04B 140

Patent

active

043172202

ABSTRACT:
A simulcast transmission system is disclosed. The system comprises a master station including means for generating and transmitting over a medium an audio signal containing a message signal and a pilot frequency signal inserted into the audio signal band, and at least two slave stations adapted to receive the audio signal transmitted over the medium and including a radio frequency generator of the phase locked loop type and means for isolating the pilot frequency signal from the audio signal and for synchronizing the frequency of the radio frequency generator with such pilot frequency signal.

REFERENCES:
patent: 2868963 (1959-01-01), McMillan
patent: 3020352 (1962-02-01), Jager
patent: 3118111 (1964-01-01), Miller
patent: 3377559 (1968-04-01), Stewart
patent: 3927373 (1975-12-01), Janssens
patent: 4119912 (1978-10-01), Nagy
patent: 4255814 (1981-03-01), Osborn

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