Television sound receiver

Details Television sound receiver Television sound receiver

1981-12-03

1983-08-02

Ng, Jin F.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358198, 455175, H04N 560, H04B 116

Patent

active

043969496

ABSTRACT:
A televison sound receiver includes an input terminal for receiving a television sound signal, a tuner connected to the input terminal, a channel selector connected to the tuner, an intercarrier sound demodulating circuit connected to the tuner, a split-carrier sound demodulating circuit connected to the tuner, a sound signal output terminal, and a switching device for selectively connecting one of the intercarrier and split-carrier sound demodulating circuits between the tuner and the sound signal output terminal and the switching device. The switching device includes a timing generator connected to the channel selector for generating a pulse signal of a predetermined period responsive to a channel selection period of the channel selector, a first operational circuit for normally connecting the split-carrier sound demodulating circuit operatively between the tuner and the sound signal output terminal, and a second operational circuit for connecting the intercarrier sound demodulating circuit operatively between the tuner and the sound signal output terminal during the predetermined period.

REFERENCES:
patent: 3360604 (1967-12-01), Hansen
patent: 4272788 (1981-06-01), Ogita
"Intercarrier BVEE Phenomena Analysis and Cures" by Fockens et al., IEEE Transactions on Consumer Electronics, vol. CE-27, No. 3, Aug. 1981.

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