FM trap for a television tuner permitting both TV and FM recepti

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry

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358189, 358196, 358198, 455315, 4551801, 4551891, H04N 550

Patent

active

051423715

ABSTRACT:
A television receiver includes a single tuner for tuning both television channels and broadcast FM stations. The tuner is operated at a fixed gain setting in FM reception mode. The tuner serves as the first conversion stage of a double conversion FM receiver, wherein the mixer of an FM radio integrated circuit serves as the second conversion stage. The arrangement operates at a specific and non-arbitrary first IF frequency. The FM receiver is also capable of automatically receiving National Weather Service broadcasts on that one of NWS's seven allocated frequencies which is operating in a listener's area. The receiver provides an on-screen display of the currently tuned FM channel number.

REFERENCES:
patent: 4027242 (1977-05-01), Yamanaka
patent: 4088959 (1978-05-01), Sumi
patent: 4162451 (1979-07-01), Ash
patent: 4272788 (1981-06-01), Ogita
patent: 4286288 (1981-08-01), Waldo
patent: 4352111 (1982-09-01), Carlson et al.
patent: 4361906 (1982-11-01), Sakamoto
patent: 4499602 (1985-02-01), Hermeling
patent: 4553264 (1985-11-01), Hasegawa
patent: 4574308 (1986-03-01), Gibson
patent: 4575761 (1986-03-01), Carlson et al.
patent: 4581643 (1986-04-01), Carlson
patent: 4709407 (1987-11-01), Baba
patent: 4726072 (1988-02-01), Yamashita
patent: 4849721 (1989-07-01), Matsuura
patent: 4881272 (1989-11-01), Eguchi
patent: 4903129 (1990-02-01), Bell
patent: 4935924 (1990-06-01), Baxter
RCA/GE Color Television Supplemental Service Data, CTC 156/157-51, Aug. 89, pp. 2-3.
RCA/GE Color Television Service Data, CTC 156/157, p. 2-1.
SAMS Photofact Schematic for the Dumont Model RA-119A television receiver, circa 1952.
An article in Funk-Technik, vol. 35, No. 6/1980, pp. -226. (translation attached).

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