Apparatus for emitting and receiving light signals, more particu

Details Apparatus for emitting and receiving light signals, more particu Apparatus for emitting and receiving light signals, more particu

1984-12-19

1986-12-30

Orsino, Jr., Joseph A.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

250237R, 455606, H04B 900

Patent

active

046335226

ABSTRACT:
There serves to emit light signals, more particularly infrared signals, and to receive such signals, an apparatus in which a light emitting arrangement (15) and a light receiving arrangement (20) are arranged in or behind a plate (32) which is translucent or transparent to said light signals or infrared signals. At least one surface of the plate (32) has such a finish between the light emitting arrangement (15) and the light receiving arrangement (20) that light rays are impeded or prevented from being passed on within the plate (32).

REFERENCES:
patent: 2404696 (1946-07-01), Deal
patent: 3842263 (1974-10-01), Kornrumpf et al.
patent: 4150824 (1979-04-01), Villa
patent: 4291411 (1981-09-01), Muller et al.
Funkschau-Television Sound Transmission by Infrared-vol. 47, No. 17, pp. 56-58-14 Aug. 1975.

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