Receiving device for pulses modulated by phase jump modulation on a carrier oscillation

Claim 1

A RECEIVER FOR SIGNALS OF THE TYPE INCLUDING A PHASESHIFT MODULATED CARRIER OSCILLATION AND A PILOT OSCILLATION, COMPRISING MEANS FOR PRODUCING A REFERENCE OSCILLATION OF THE FREQUENCY OF SAID CARRIER OSCILLATION, MEANS FOR SYNCHRONOUSLY DEMODULATING SAID SIGNALS WITH SAID REFERENCE OSCILLATIONS, MEANS FOR REGENERATING THE MODULATION OF SAID CARRIER OSCILLATION FROM THE OUTPUT OF SAID SYNCHRONOUS DEMODULATING MEANS, MEANS FOR GENERATING A TIMING SIGNALS FROM SAID PILOT OSCILLATION, SAID TIMING SIGNAL HAVING A REPETITION FREQUENCY EQUAL TO THE DIFFERENCE FREQUENCY BETWEEN SAID PILOT OSCILLATION AND CARRIER OSCILLATION, AND MEANS FOR APPLYING SAID TIMING SIGNAL TO SAID REGENERATING MEANS FOR CORRECTING FOR SHIFTS OCCURRING IN SAID SIGNALS DURING TRANSMISSION; WHEREIN THE IMPROVEMENT COMPRISES LIMITER MEANS, MEANS FOR APPLYING A PORTION OF THE OUTPUT OF SAID SYNCHRONOUS DEMODULATING MEANS TO SAID LIMITING MEANS TO PRODUCE AN ALTERNATING VOLTAGE OF CONSTANT AMPLUTIDE, COINCIDENCE MEANS FOR COMPARING SAID TIMING SIGNAL WITH THE ZERO CROSSOVERS OF SAID CONSTANT AMPLITUDE ALTERNATING VOLTAGE, SAID MEANS FOR GENERATING A TIMING SIGNAL COMPRISING MEANS FOR CHANGING THE PHASE OF SAID TIMING SIGNAL BY HALF A PERIOD THEREOF, MEANS FOR APPLYING THE OUTPUT OF SAID COINCIDENCE MEANS TO SAID MEANS FOR CHANGING SAID PHASE, WHEREBY