Method and apparatus for digital transmission of analog data of a function with scanning of the function plotted in hz along a sequence of predetermined values of the independent of the present invention can be sufficient vera haen

摘要

A discriminator controlled by the keying element for the independent variable is intended for first forward steps and has a forward-reverse counter which has connected to its output a device to generate a return signal. This return signal blocks via a gate circuit a passage for the step pulses coming from the keying element for the independent variable, as soon as the forward-Reverse counter is reset by reverse step pulses triggered by a return of the keying element. The passage is not cleared until after the forward-reverse counter reaches its original setting again by forward step pulses and the return signal vanishes.