Signal differential comparator amplifier

Claim 1

APPARATUS FOR COMPARING AN UNKNOWN POTENTIAL WITH A REFERENCE POTENTIAL, COMPRISING, A FIRST JUNCTION TO WHICH THE UNKNOWN POTENTIAL IS APPLIED, A SECOND JUNCTION, A RESISTOR INTERCONNECTING SAID FIRST AND SECOND JUNCTIONS, A TRANSISTOR INCLUDING A COLLECTOR, AN EMITTER AND A BASE CONNECTED AS AN EMITTER FOLLOWER, A FIRST CAPACITOR FOR COUPLING SAID SECOND JUNCTION TO SAID BASE AND FOR ISOLATING SAID BASE FROM SAID SECOND JUNCTION WHEN SAID SECOND JUNCTION IS AT SAID REFERENCE POTENTIAL, A THIRD JUNCTION, A SECOND CAPACITOR FOR COUPLING SAID EMITTER TO SAID THIRD JUNCTION AND FOR ISOLATING SAID BASE FROM SAID THIRD JUNCTION WHEN SAID THIRD JUNCTION IS AT SAID REFERENCE POTENTIAL, A SOURCE OF A SIGNAL THE DURATION OF WHICH DEFINES A PERIOD OF OPERATION OF SAID APPARATUS, AND TRANSISTOR SWITCH MEANS CONTROLLED BY SAID SIGNAL FOR APPLYING SAID REFERENCE POTENTIAL TO ALL THREE OF SAID JUNCTIONS EXCEPT DURING THE OCCURRENCE OF SAID SIGNAL.