Electronic channel selector

Details Electronic channel selector Electronic channel selector

1977-03-18

1977-12-27

Safourek, Benedict V.

Registers

Coded record sensors

Particular sensor structure

325455, 325 25, 235 92EV, 235 92CA, 340347C, H03K 2136

Patent

active

040657205

ABSTRACT:
An electronic channel selector is described for providing a tuning signal at a frequency corresponding to a selected channel. A logic circuit cooperates with an uncoded rotary switch for providing control signals to an up/down counter which counts up or down in response to rotation of a rotary switch in a clockwise or counterclockwise direction and which provides a digital signal representing a selected channel. The digital signal from the up/down counter controls a channel display and frequency synthesizer.

REFERENCES:
patent: 3440640 (1969-04-01), Droniou et al.
patent: 3548169 (1970-12-01), Tonneri
patent: 3733472 (1973-05-01), Taisne
patent: 3818342 (1974-06-01), Stevens
patent: 3908116 (1975-09-01), Bjornsen
patent: 3937932 (1976-02-01), Ahlgren
patent: 3965336 (1976-06-01), Grohmann
patent: 3970828 (1976-07-01), Klien
patent: 3988681 (1976-10-01), Schurmann

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