Amplitude selective unipolar amplifier of bipolar pulses

Claim 1

THE COMBINATION WITH A SOURCE OF BIPOLAR SIGNALS PRODUCING PULSES OF EITHER POLARITY, OF AN AMPLITUDE SELECTIVE UNIPOLAR AMPLIFIER COMPRISING A PAIR OF AMPLIFYING DEVICES HAVING A PAIR OF INPUTS AND A PARALLEL CONNECTED, SINGLE-ENDED OUTPUT, A LOAD CIRCUIT COMMON TO AND CONNECTED TO THE OUTPUT OF SAID AMPLIFYING DEVICES, MEANS COUPLING THE AMPLIFYING DEVICES TO THE BIPOLAR SOURCE AND PROVIDING A BALANCED INPUT CONNECTION FOR APPLICATION OF INPUT PULSES OF EQUAL AMPLITUDE BUT OPPOSITE POLARITY TO THE INPUTS THEREOF FROM A SIGNAL PULSE OF EITHER POLARITY PRODUCED BY SAID BIPOLAR SOURCE, AND FIXED EXTERNAL BIASING MEANS BIASING THE AMPLIFYING DEVICES FOR EQUAL CONDUCTION AND OUTPUT CURRENT FLOW THEREFROM IN THE ABSENCE OF THE APPLICATION OF AN INPUT SIGNAL PULSE THERETO AND CONDITIONING EACH AMPLIFIER FOR CLASS A OPERATION AND EQUAL BUT OPPOSITE SIGNAL CURRENT FLOW THEREFROM FOR AN INPUT SIGNAL PULSE BELOW A PREDETERMINED AMPLITUDE LEVEL AND FOR CLASS AB OPERATION FOR AN INPUT SIGNAL PULSE ABOVE A PREDETERMINED AMPLITUDE LEVEL, WHEREBY ONLY AN INPUT SIGNAL PULSE ABOVE A PREDETERMINED AMPLITUDE LEVEL WILL EXERT A NET EFFECT AND APPEAR ACROSS THE LOAD AS A UNIPOLAR OUTPUT SIGNAL PULSE OF ONE POLARITY IRRESPECTIVE OF ITS POLARITY AS APPLIED TO THE INPUT CONNECTION OF SAID AMPLIFYING DEVICES.