Multivibrator amplifier with time delay modulating audio input

Claim 1

AN AMPLIFIER COMPRISING A CONVERTER CIRCUIT HAVING FIRST AND SECOND CURRENT PATHS, EACH OF SAID PATHS INCLUDING A SEMICONDUCTOR SWITCHING DEVICE OF THE TYPE HAVING A FIRST STABLE STATE IN WHICH THE DEVICE PRESENTS A RELATIVELY HIGH IMPEDANCE AND A SECOND STABLE STATE IN WHICH THE DEVICE PRESENTS A RELATIVELY LOW IMPEDANCE, SAID DEVICE BEING SWITCHED FROM THE FIRST TO THE SECOND STABLE STATE IN RESPONSE TO A PREDETERMINED VOLTAGE APPLIED ACROSS THE SAME AND FROM ITS SECOND TO ITS FIRST STATE WHEN THE CURRENT THROUGH THE DEVICE IS BELOW A PREDETERMINED VALUE, MEANS FOR APPLYING A VOLTAGE ACROSS SAID SAMICONDUCTOR SWITCHING DEVICES WHICH IS GREATER THAN THE PREDETERMINED SWITCHING VOLTAGE FOR AT LEAST ONE OF SAID SWITCHING DEVICES, A COMMUTATING CAPACITOR CONNECTED BETWEEN SAID FIRST AND SECOND CURRENT PATHS, A LOAD CIRCUIT CONNECTED TO SAID CURRENT PATHS, MODULATING MEANS CONNECTED TO RECEIVE A VARYING VOLTAGE INPUT SIGNAL TO BE AMPLIFIED AND FORM A FIRST PULSE TRAIN HAVING A SUBSTANTIALLY CONSTANT FREQUENCY TO BE APPLIED TO ONE PATH OF THE CONVERTER CIRCUIT AND A SECOND PULSE TRAIN IN WHICH THE PULSES ARE DELAYED WITH RESPECT TO THE FIRST PULSES AN AMOUNT PROPORTIONAL TO THE INPUT SIGNAL VOLTAGE OF THE SIGNAL TO BE AMPLIFIED, AND MEANS FOR SUPPLYING THE PULSES TO THE CONVERTER CIRCUIT TO CONTROL SWITCHING OF THE SWITCHING DEVICE IN AT LEAST ONE OF SAID LEGS FROM THE FIRST TO THE SECOND STATE IN RESPONSE TO THE PULSES APPLIED THERETO, SAID LOAD CIRCUIT SERVING TO RECOVER THE AMPLIFIED INPUT SIGNAL FROM THE CONVERTER.