Transmitting device of light signal for remote control

Details Transmitting device of light signal for remote control Transmitting device of light signal for remote control

1977-10-17

1979-05-29

Griffin, Robert L.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

325 37, 325392, 343225, 358194, B22D 710

Patent

active

041568109

ABSTRACT:
A transmitting device of light signal for remote control of television channel, sound volume, radio, tape recorder, etc, to transmit a light signal to a receiving device which is provided in the device which is to be controlled. Said light signal has at least two light pulses, i.e. first, and a second pulse and time interval Tp between said first, and a second light pulse which differs according to an operated switch, i.e. controlling matter. A delaying circuit is provided between the circuit of the switch and a gate circuit of a thyristor for producing said secondary light pulse so as to avoid controlling the gate of thyristor during an unstable condition immediately after the operation of said switch.

REFERENCES:
patent: 1430902 (1922-10-01), Hammond
patent: 3534351 (1970-10-01), Harnden
patent: 3814509 (1974-06-01), Miano
patent: 3866177 (1975-02-01), Kawamata
patent: 3949297 (1976-04-01), Hideshima
patent: 3971028 (1976-07-01), Funk

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