Infra-red receiver

Details Infra-red receiver Infra-red receiver

1988-08-22

1990-06-12

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

2503384, G01J 144, G01J 520

Patent

active

049335634

ABSTRACT:
A infra-red receiver for use in applications such as remote control of consumer equipment and receiving audio signals modulated on an IR carrier. The receiver comprises an IR diode (10) which is operated in its forward mode so that it constitutes a current source. The IR diode (10) is connected in an amplifying circuit which includes means (16) for detecting low frequency interference components in the signal and in response to the detection of these interference components temporarily shorts out the IR diode.

REFERENCES:
patent: 4793704 (1988-12-01), Hagner
patent: 4803363 (1989-02-01), Gaalema et al.
Philips Technical Publication 167, Mar. 22, 1985, "IR Transmitter & Receiver".

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