Broadcast receiver comprising an entirely electronic control dev

Details Broadcast receiver comprising an entirely electronic control dev Broadcast receiver comprising an entirely electronic control dev

1982-12-06

1985-01-22

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

334 15, 340365C, 340712, 455159, 455168, 455234, 455347, H04B 108, H04B 116

Patent

active

044956517

ABSTRACT:
A broadcast receiver is provided for mounting on board a motor vehicle, whose control circuit is entirely electronic. The receiver comprises a case whose front face, accessible to the user, is free from unevennesses or appreciable projections and which presents an opaque appearance when the receiver is stopped. The front wall is formed by a plate made from a tinted transparent plastic material. It comprises four sensitive zones which are formed by metallizations on the rear face of the plate so as to form capacitive proximity sensor keys. The indication of the wave range is effected by selective illumination of zones comprising graduations and/or by means of a double seven-segment display.

REFERENCES:
patent: 1825070 (1931-09-01), Kayser
patent: 3503018 (1970-03-01), Cavanagh
patent: 3757260 (1973-09-01), Fujita
patent: 3958239 (1976-05-01), Green
patent: 3965336 (1976-06-01), Grohmann
patent: 4421418 (1983-12-01), Morishima
Funkschau, vol. 49, No. 22, Oct., 1977, Munich, Germany, Auto-und Reiseempfanger: "Die Kleinen" mausern sich, pp. 1020-1024.
Nachrichten Elektronik, vol. 31, No. 11, Nov., 1977, Berlin, Germany, G. Dickopp: "Entwicklungstendenzen in der Horrundfunk-Empfangstechnik," pp. 313-315.
IEEE Transactions on Broadcast and Television Receivers, vol. BTR 20, No. 4, Nov., 1974, G. Whelpley: "Solid State Audio Control," pp. 299-310.

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