SYSTEM FOR THE TRANSMISSION OF DATA SIGNALS BY LINEAR FREQUENCY MODULATION EMPLOYING CIRCUIT IN A RECEIVER TUNED TO A CENTRAL FREQUENCY

摘要

A system for the transmission of data signals by linear frequency modulation employing a transmitter and a receiver which are synchronized by a circuit present in the receiver which is tuned to a central frequency of the frequency modulated signal applied to a filter the output of which is connected to a detector. Output pulses from the detector, after regeneration in a regenerator, control a digital circuit for controlling the clock phase.