Broadcast receiver comprising an entirely electronic control device
First Claim
1. A radio receiver free of control knobs and mechanical switches, which displays control information when operated and marks the information when not operated thereby disguising the identity of the receiver as such when not operated, the receiver comprising:
- a receiver housing mounting a substantially planar front plate thereto which is tinted and light transmissive, said plate being free of any observable portions construable as enabling control of said receiver;
a plurality of control areas located at the rear of the plate for sensing touch of said plate and causing change in a respective plurality of control functions of the receiver thus altering its operation;
first light source means located at the rear of the front plate for displaying operating frequency information only when the receiver is operated; and
second light source means located at the rear of the front plate for back-lighting the control areas only when the receiver is operated.
1 Assignment
0 Petitions
Accused Products
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.
20 Citations
21 Claims
-
1. A radio receiver free of control knobs and mechanical switches, which displays control information when operated and marks the information when not operated thereby disguising the identity of the receiver as such when not operated, the receiver comprising:
-
a receiver housing mounting a substantially planar front plate thereto which is tinted and light transmissive, said plate being free of any observable portions construable as enabling control of said receiver; a plurality of control areas located at the rear of the plate for sensing touch of said plate and causing change in a respective plurality of control functions of the receiver thus altering its operation; first light source means located at the rear of the front plate for displaying operating frequency information only when the receiver is operated; and second light source means located at the rear of the front plate for back-lighting the control areas only when the receiver is operated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification