APPARATUS FOR PROCESSING SIGNALS AND FOR SELECTIVELY TRANSMITTING INPUT SIGNALS

摘要

A system for processing signals, and for selectively transmitting the signals to a computer and/or a display device, comprises a binary full adder (38) to add an incoming signal, in inverted form, to a previously transmitted signal to obtain the difference therebetween. A binary comparator (52) compares the difference with a predetermined value, established by thumbwheel switches (46), and if the difference exceeds the predetermined level, causes the actuation of a flip-flop (54) and a bistable latch (32) thereby the incoming signal to the transmitted to the computer and/or display device.