Peak detector

Claim 1

A PEAK DETECTOR FOR PRODUCING SHARP PULSES COINCIDING PRECISELY WITH THE ROUNDED PEAKS OF INPUT SIGNALS, COMPRISING RECTIFYING MEANS FOR RECTIFYING THE INPUT SIGNALS SO THAT THE PEAKS WILL BE OF ONE POLARITY, SAID RECTIFYING MEANS INCLUDING A PAIR OF DIODES AND A PAIR OF TRANSISTORS, SAID DIODES BEING CONNECTED IN OPPOSITE POLARITY TO SAID TRANSISTORS, RESPECTIVELY, AND THE OUTPUTS OF SAID TRANSISTORS BEING COUPLED BY A COMMON LOAD RESISTOR, AND FURTHER INCLUDING MEANS FOR BALANCING THE OUTPUTS OF SAID TRANSIUSTORS, ZERO CLIPPING MEANS FOR RECEIVING THE RECTIFIED SIGNALS FROM SAID RECTIFYING MEANS AND FOR CLIPPING THE LOWER VOLTAGE PORTIONS OF SAID RECTIFIED SIGNALS TO PRODUCE CLIPPED SITNALS CORRESPONDING TO THE TOP PORTIONS OF SAID PEAKS, DIFFERNTIATING MEANS FOR RECEIVING AND DIFFERENTIATING SAID CLIPPED SIGNALS, THE DIFFERENTIATED SIGNALS HAVING POLARITY REVERSALS CORRESPONDING TO SAID PEAKS, LIMITING MEANS FOR GENERATING SIGNALS OF SUBSTANTIALLY SQUARE WAVE FROM CORRESPONDING TO SAID DIFFERENTIATED SIGNALS, SAID LIMITING MEANS INCLUDING A HIGH GAIN AMPLIFIER HAVING TRANSISTORS THAT CONTINUOUSLY OPERATE IN THEIR LINEAR RANGE BY MEANS OF LIMITIN DIODES SYMMETRICALLY CONNECTED ACROSS THE CIRCUIT OF SAID AMPLIFIER, SAID SIGNALS OF SQUARE WAVE FROM HAVING POLARITY REVERSALS CORRESPONDING TO SAID POLARITY REVERSALS OF SAID DIFFERENTIATED SIGNALS, AND TRIGGER MEANS, HAVING ADJUSTMENT MEANS FOR VARYIN THE POINT ON SAID SQUARE WAVE FORM AT WHICH SAID TRIGGER MEANS OPERATES, GENERATING SHARP OUTPUT PULSES CORRESPONDING PRECISELY IN TIME TO SAID PEAKS OF SAID INPUT SIGNALS.