Phase and d.-c. voltage analog multiplier

Claim 1

AN ELECTRONIC MULTIPLIER FOR MULTIPLYING THE INFORMATION CONTAINED IN THE PHASE DIFFERENCE BETWEEN A PAIR OF INPUT A.-C. SIGNALS AND A D.-C. INPUT VOLTAGE, SAID ELECTRONIC MULTIPLIER COMPRISING: MEANS FOR CONVERTING THE PHASE DIFFERENCE BETWEEN THE PAIR OF A.-C. SIGNALS INTO A TWO-LEVELED SIGNAL, THE DURATION OF ONE LEVEL IN SAID TWOLEVELED SIGNAL RELATIVE TO THE DURATION OF THE OTHER LEVEL CORRESPONDING TO THE PHASE DIFFERENCE; FIRST OUTPUT MEANS RESPONSIVE TO ONE LEVEL OF SAID TWO-LEVEL SIGNAL FOR PRODUCING AN OUTPUT SIGNAL CORRESPONDING IN MAGNITUDE AND POLARITY TO SAID D.-C. INPUT VOLTAGE; SECOND OUTPUT MEANS RESPONSIVE TO THE OTHER LEVEL OF SAID TWO-LEVEL SIGNAL FOR PRODUCING AN OUTPUT SIGNAL CORRESPONDING IN MAGNITUDE TO SAID D.-C. INPUT VOLTAGE, BUT INVERTED IN POLARITY THEREFROM, THE RELATIVE DURATIONS OF THE SIGNALS PRODUCED BY SAID FIRST AND SECOND OUTPUT MEANS CORRESPONDING TO SAID