Pulse signal agc circuitry

Claim 1

A PULSE SIGNAL AUTOMATIC GAIN CONTROL VOLTAGE DERIVING CIRCUIT ARRANGEMENT, INCLUDING INPUT TERMINALS AT WHICH A PULSE SIGNAL HAVING UNDERSIRED AMPLITUDE VARIATIONS IS PRESENTED, OUTPUT TERMINALS AT WHICH SAID AUTOMATIC GAIN CONTROL VOLTAGE IS DESIRED, A RECTIFYING CIRCUIT HAVING AN INPUT COUPLED TO SAID INPUT TERMINALS AND AN OUTPUT, A CHARGING RESISTOR AND A CHARGE STORING CAPACITOR CONNECTED IN SERIES TO THE OUTPUT OF SAID RECTIFYING CIRCUIT FOR STORING A CHARGE PROPORTIONAL TO THE OUTPUT OF SAID RECTIFYING CIRCUIT, A DISCHARGING RESISTOR CONNECTED ACROSS SAID CHARGE STORING CAPACITOR, SAID DISCHARGING RESISTOR HAVING A VALUE AT WHICH THE DISCHARGING TIME CONSTANT IS VERY MUCH GREATER THAN THE CHARGING TIME CONSTANT OF THE RESISTANCE-CAPACITANCE COMBINATION THUS FORMED, AN IMPEDANCE MATCHING EMITTER-FOLLOWER CIRCUIR COUPLED ACROSS SAID CAPACITOR AND HAVING OUTPUT TERMINALS, MEANS TO ESTABLISH REFERENCE POTENTIAL, POTENTIAL COMPARING MEANS COUPLED TO SAID REFERENCE POTENTIAL ESTABLISHING MEANS AND COUPLED BETWEEN SAID IMPEDANCE MATCHING CIRCUIT AND SAID OUTPUT TERMINALS, THEREBY COMPLETING AN AUTOMATIC GAIN CONTROL VOLTAGE DERIVING CIRCUIT ARRANGEMENT, AND A SEMICONDUCTIVE ELECTRON FLOW CONTROLLING DEVICE HAVING OUTPUT CIRCUIT ELECTRODES CONNECTED ACROSS SAID CHARGE STORING CAPACITOR AND HAVING INPUT CIRCUIT ELECTRODES, AND SWITCHING MEANS COUPLED TO SAID INPUT CIRCUIT ELECTRODES FOR APPLYING POTENTIAL ACROSS SAID INPUT CIRCUIT ELECTRODES FOR ABRUPTLY DISCHARGING SAID CHARGE STORING CAPACITOR.