Circuit arrangement for generating tuning voltage

Details Circuit arrangement for generating tuning voltage Circuit arrangement for generating tuning voltage

1978-03-03

1980-04-08

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455180, 455179, 455150, 334 15, H04B 126

Patent

active

041975030

ABSTRACT:
The invention relates to broadcast receivers having a voltage controlled tuning device and in particular to a circuit arrangement for applying a voltage to the tuning device. The circuit arrangement is so designed as to be capable of producing tuning voltages to tune the receiver into the desired channels but at the same time being inhibited from producing voltages which tune the receiver into undesired channels such as police channels.

REFERENCES:
patent: 3449749 (1969-06-01), McEvoy
patent: 3646450 (1972-02-01), Ma
patent: 3839681 (1974-10-01), Mogi
patent: 3893049 (1975-07-01), Bray
patent: 3961267 (1976-06-01), Weissmueller, Jr.
patent: 3968444 (1976-07-01), Tenny
IEEE Trans--on Broadcast & T.V. Receivers, vol. BTR-20, No. 3, Aug. 1974, "Integrated Circuit System for Channel Selection of Varactor--Tuned T.V. Receivers", pp. 235-246--R. W. England et al.

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