Improvement to sets for remote control of orders by coded infrared radiation

摘要

Improvement so as to increase the range of sets for remote control of orders by coded infrared radiation. This invention is characterised by a pulsatile control of the element 6 for emission of infrared radiation and of a resonant input circuit 8 for the receiver tuned to the frequency of the carrier. This invention is of interest to constructors of equipment for remote control by infrared radiation. <IMAGE>