Sperry Rand Corporation

Jeffrey Clarus Rice

Terry A Tucker

Each output signal from a synchro device is applied to an individual voltage comparator through a step-down transformer. Each comparator is biased to a predetermined threshold level and produces an output signal whenever the magnitude of the associated synchro signal exceeds the threshold in the proper polarity. The comparator output voltages are applied to individual clocked flip-flops so as to produce binary output signals in a parallel format indicative of the rotor displacement of the synchro device.

Synchro-to-digital converter

A video detector wherein the ratio of the energy contained in a range cell of interest to the average energy contained in adjacent range cells is obtained. When the two ratios are both greater than a predetermined value, a hit is recorded. After a number of transmitted pulses, the hits obtained in the range cell of interest are summed and a target report is given when this sum is equal to or exceeds a specified value.

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McLean, VA, United States of America

Jeffrey Clarus Rice