Ringing trigger for flip-flop incorporating unidirectionally conductive blocking andlevel shifting means

Claim 1

APPARATUS FOR SWITCHING AN ACTIVE CIRCUIT ELEMENT FROM ONE STATE TO ANOTHER COMPRISING: AN INPUT TERMINAL ADAPTED TO RECEIVE A FIRST TRIGGER PULSE; RESONANT PULSE FORMING MEANS, ELECTRICALLY CONNECTED TO SAID INPUT TERMINAL, FOR CONVERTING THE ENERGY FROM SAID FIRST TRIGGER PULSE TO A SERIES OF OSCILLATORY PULSES INCLUDING A SECOND PULSE HAVING A POLARITY OPPOSITE TO THAT NECESSARY TO SWITCH SAID CIRCUIT ELEMENT FROM ONE STATE TO THE OTHER AND TO A THIRD PULSE OF THE POLARITY NECESSARY TO SWITCH SAID CIRCUIT ELEMENT FROM ONE STATE TO ANOTHER AND OF SUBSTANTIALLY THE SAME WIDTH AS SAID SECOND PULSE;