Frequency multiplying monostable multivibrator

Claim 1

IN A MONOSTABLE MULTIVIBRATOR CIRCUIT FOR CONVERTING AN INPUT WAVEFORM INTO DOUBLED OUTPUT WAVEFORMS INCLUDING FIRST AND SECOND ACTIVE ELEMENTS EACH HAVING CONTROL AND OUTPUT ELECTRODES, MEANS FOR APPLYING SAID INPUT WAVEFORM TO THE CONTROL ELECTRODE OF SAID FIRST ACTIVE ELEMENT, A CAPACITOR COUPLED BETWEEN THE OUTPUT ELECTRODE OF THE FIRST ACTIVE ELEMENT AND THE CONTROL ELECTRODE OF THE SECOND ACTIVE ELEMENT, AND AN OUTPUT TERMINAL COUPLED TO THE OUTPUT ELECTRODE OF THE SECOND ACTIVE ELEMENT, THE COMBINATION COMPRISING A THIRD ACTIVE ELEMENT COUPLED TO THE CAPACITOR, INTEGRATING MEANS COUPLED TO THE OUTPUT TERMINAL FOR PRODUCING A SIGNAL THAT IS THE INTEGRAL OF THE OUTPUT OF THE MONOSTABLE MULTIVIBRATOR CIRCUIT, AND MEANS COUPLED BETWEEN THE INTEGRATING MEANS AND THE THIRD ACTIVE ELEMENT FOR CONVERTING THE INTEGRAL INTO AN ERROR SIGNAL PROPORTIONAL TO DEPARTURES OF SAID INTEGRAL FROM A PREDETERMINED REFERENCE AND APPLYING THE ERROR SIGNAL TO THE THIRD ACTIVE ELEMENT TO ALTER THE RESISTANCE THEREOF TO VARY THE TIME CONSTANT OF THE MONOSTABLE MULTIVIBRATOR TO PRODUCE THE DESIRED WAVEFORMS OR SYMMETRY IN THE DOUBLED OUTPUT WAVEFORMS.