Bistable multivibrators

Claim 1

A BISTABLE MULTIVIBRATOR COMPRISING IN COMBINATION, A PAIR OF SUBSTANTIALLY SIMILAR INVERTER TRANSISTORS CONNECTED IN GROUNDED EMITTER CONFIGURATION, AN RC NETWORK AND AN ISOLATION RESISTOR CONNECTED IN SERIES BETWEEN THE BASE OF EACH INVERTER TRANSISTOR AND THE COLLECTOR OF THE OTHER INVERTER TRANSISTOR FOR PROVIDING A REGENEATIVE PATH, A RESISTIVE CONNECTION BETWEEN THE COLLECTOR OF EACH SAID INVERTER TRANSISTOR AND A FIRST VOLTAGE TERMINAL FOR SUPPLY VOLTAGE OF A FIRST POLARITY WITH RESPECT TO GROUND, AN OUTPUT TERMINAL CONNECTED TO ONE OF SAID INVERTER TRANSISTOR COLLECTORS, A PAIR OF SUBSTANTIALLY SIMILAR TRIGGER TRANSISTORS EACH HAVING ITS EMITTER CONNECTED TO THE BASE OF A CORRESPONDING INVERTER TANSISTOR, ITS COLLECTOR CONNECTED AT THE JUNCTION OF THE ISOLATION RESISTOR AND THE RC NETWORK LEADING FROM THE COLLECTOR OF THE CORRESPONDING INVERTER TRANSISTOR TO THE BASE OF THE OTHER INVERTER TRANSISTOR, ITS EMITTER FURTHER RESISTIVELY CONNECTED TO A SECOND VOLTAGE TERMINAL FOR SUPPLY VOLTAGE OF A SECOND POLARITY WITH RESPECT TO GROUND, AND ITS BASE CONNECTED TO AN INPUT TERMINAL WHEREBY WHEN AN INPUT PULSE CAUSES ONE OF SAID TRIGGER TRANSISTORS TO CONDUCT, THE VOLTAGE AT THE EMITTER OF SAID ONE CHANGES AND IS COUPLED TO THE BASE OF THE CORRESPONDING INVERTER TRANSISTOR SO AS TO PLACE IT INTO CONDUCTION WHILE SIMULTANEOUSLY THE VOLTAGE AT THE COLLECTOR OF SAID ONE CHANGES AND IS COUPLED THROUGH THE RC NETWORK TO THE BASE OF THE OTHER INVERTER TRANSISTOR SO AS TO TAKE IT OUT OF CONDUCTION, THE OPERATION OF EACH SAID TRIGGER TRANSISTOR THUS OPERATING ON BOTH INVERTER TRANSISTORS SIMULTANEOUSLY AND INDEPENDENTLY OF OPERATION OF SAID REGENERATIVE PATH TO INCREASE THE SWITCHING SPEED OF SAID MULTIVIBRATOR.