Television sound multiplex signal receiving device

Details Television sound multiplex signal receiving device Television sound multiplex signal receiving device

1979-12-13

1982-10-26

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358144, 358198, H04N 560

Patent

active

043565107

ABSTRACT:
In a television sound multiplex broadcast signal receiving device, an AM detector outputs a control signal which modulates a 55.1 KHz sub-carrier signal; a reference signal inputted to a counter circuit is controlled at time intervals of the control signal; the reference signal is counted, and a stereophonic broadcast, a different program broadcast and a monaural broadcast are discriminated with the aid of an information signal outputted by the counter circuit and the 55.1 KHz sub-carrier signal.

REFERENCES:
patent: 3221098 (1965-11-01), Feldman
patent: 3924060 (1975-12-01), Bedford
patent: 4079419 (1978-03-01), Siegle
patent: 4139866 (1979-02-01), Wegner
"Integrated Circuits for TV Multiplex Sound Receiver", pp. 31-43, Yamada, et al., J. Inst. TV Engrs. of Japan, vol. 27 #1, 1973.

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