Inverter circuit in which a coupling transistor functions similar to charge storage diode

Claim 1

THE COMBINATION COMPRISING: AN OUTPUT TRANSISTOR OF ONE CONDUCTIVITY TYPE HAVING AN EMITTER ELECTRODE CONNECTED TO A POINT OF REFERENCE POTENTIAL, A BASE AND A COLLECTOR; AN IMPEDANCE ELEMENT HAVING ONE END CONNECTED AT SAID COLLECTOR; MEANS FOR APPLYING OPERATING POTENTIAL BETWEEN THE OTHER END OF SAID IMPEDANCE ELEMENT AND SAID POINT OF REFERENCE POTENTIAL; A RESISTOR CONNECTED AT ONE END TO THE BASE OF SAID OUTPUT TRANSISTOR; MEANS FOR CONNECTING A BIAS SOURCE AT THE OTHER END OF SAID RESISTOR IN A POLARITY DIRECTION TENDING TO FORWARD BIAS THE BASE-EMITTER DIODE OF SAID OUTPUT TRANSISTOR, SAID RESISTOR PROVIDING THE SOLE PATH FOR BASE CURRENT IN SAID OUTPUT TRANSISTOR IN THE QUIESCENT "ON" CONDITION THEREOF; A JUCTION POINT; A COUPLING TRANSISTOR OF SAID ONE CONDUCTIVITY TYPE HAVING A BASE CONNECTED DIRECTLY TO THE BASE OF SAID OUTPUT TRANSISTOR, AND A COLLECTOR AND AN EMITTER DIRECTLY CONNECTED TOGETHER AND TO SAID JUNCTION POINT; AND INPUT MEANS COUPLED TO SAID JUNCTION POINT FOR VARYING THE VOLTAGE THEREAT BETWEEN FIRST AND SECOND VALUES IN OPPOSITE POLARITY DIRECTIONS WITH RESPECT TO SAID REFERENCE POTENTIAL FOR FORWARD BIASING AND REVERSE BIASING, RESPECTIVELY, THE EMITTER-BASE DIDOE OF SAID COUPLING TRANSISTOR.