Continuous tuning arrangement for a multiband television receive

Details Continuous tuning arrangement for a multiband television receive Continuous tuning arrangement for a multiband television receive

1978-11-30

1981-02-03

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

334 15, 455180, 455195, H04B 116

Patent

active

042492556

ABSTRACT:
A tuning system includes a resistive element coupled between two terminals and a movable contact which is moved along the resistive element to determine the tuning position. A switching arrangement selectively couples predetermined voltages to the terminals as a function of the position of the movable contact so that a tuning voltage for tuning all the channels in the low VHF, high VHF and UHF bands is generated at the movable contact as it is continuously and consecutively moved along the resistive element.

REFERENCES:
patent: 3492514 (1970-01-01), Korn
patent: 3526859 (1970-09-01), Putzer
patent: 3646450 (1972-02-01), Ma
patent: 3715495 (1973-02-01), Takezaki et al.
patent: 3906373 (1975-09-01), Hendrickson
Schematic Diagram for National Model No. TR-512F Television Receiver-Manufactured by Panasonic--Date unknown.
Schematic Diagram for Hitachi Model No. K-1000 Television Receiver--Date unknown.
Schematic Diagram for J. C. Penney Model No. 685-1007, Television Receiver--Date unknown.
"A Television Tuning Method with Automatic Band Switching,"-A. Hashima, Oct. 20, 1978, Trans. on Joint Conf. of West Japanese Branches of Electrical and Electronic Engineering, Translation of Section G14-3, p. G862.

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