Pulse

Claim 1

SIGNAL-TRANSLATING APPARATUS FOR CONVERTING ELECTRICAL SIGNALS FROM PHASE-MODULATED SINUSOIDAL FORM TO PULSE FORM, THE PHASE-MODULATED SIGNALS BEING REPRESENTED BY THE PHASE DISPLACEMENT BETWEEN A CONTROL SINUSOIDAL SIGNAL AND A REFERENCE SINUSOIDAL SIGNAL AND THE OUTPUT PULSES BEING SOME OF POSITIVE SENSE AND SOME OF NEGATIVE SENSE DEPENDENT ON THE SENSE OF SUCH DISPLACEMENT INCLUDING FIRST AND SECOND GENERATORS OF ELECTRICAL PULSES OF CONSTANT SENSE BUT CONTROLLABLE REPETITION FREQUENCY, MEANS TO WHICH THE REFERENCE SIGNAL IS APPLIED FOR SO CONTROLLING THE FIRST GENERATOR THAT THE NUMBER OF PULSES GENERATED BY IT DURING EACH HALF CYCLE OF SAID REFERENCE SIGNAL HAS A CONSTANT VALUE N/2, MEANS TO WHICH THE CONTROL SIGNAL IS APPLIED FOR SO CONTROLLING THE SECOND GENERATOR THAT THE NUMBER OF PULSES GENERATED BY IT DURING EACH HALF CYCLE OF SAID CONTROL SIGNAL HAS SAID CONSTANT VALUE N/2, AND A DIFFERENCE DISCRIMINATOR TO WHICH THE PULSE OUTPUTS OF THE GENERATORS ARE APPLIED FOR PRODUCING AN OUTPUT TRAIN OF PULSES HAVING A REPETITION FREQUENCY EQUAL TO THE DIFFERENCE BETWEEN THE REPETITION FREQUENCY OF THE PULSES OF ONE GENERATOR AND THE REPETITION FREQUENCY OF THE PULSES OF THE OTHER GENERATOR, THE SENSE OF THE PULSES IN SAID OUTPUT TRAIN BEING DEPENDENT ON WHICH OF THE GENERATOR FREQUENCIES IS THE GREATER.