Frequency indicator for receiving devices

Details Frequency indicator for receiving devices Frequency indicator for receiving devices

1975-07-21

1977-08-09

Corbin, John K.

Tuners

Tuner unit with electromagnetic operator

Predetermined center frequency selector

325455, 334 86, 340336, G02F 128, H04B 116, H03J 104

Patent

active

040407195

ABSTRACT:
A liquid crystal display panel for indicating operating frequency of a receiver is operated by a circuit providing digital control signals and an alternating current signal.

REFERENCES:
patent: 3735387 (1973-05-01), Miller
patent: 3803834 (1974-04-01), Reese
patent: 3835424 (1974-09-01), Marick
patent: 3885218 (1975-05-01), Pfab
patent: 3898642 (1975-08-01), Dorey et al.
"Liquid Crystal Display for the Sake of the Prototype for an HiFi-FM Receiver" Radio Menter Electronic, vol. 41, No. 5, p. 196, May 1975.
Sheingold, D. H., "Analog-Digital Conversion Handbook" Analog Devices Inc., June 1972, pp. II-48-50.
"Liquid Crystal/CMOS Offer Minimal-Power Digital Displays" RCA Solid State Databook, Series SSD-203A, 1973 edition, pp. 315-318.

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