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A converter for converting a high frequency video input signal to a digital signal by detecting the peak voltages of the input signal. A video input signal fans out to a plurality of comparators of which each are connected to a resistive ladder of equal resistors values. One end of the resistive ladder is connected with a positive reference voltage and the other end is connected with a negative reference voltage. Real time is divided into sampling bins determined by the cycle time of a clock and, within each bin, the digital output from a plurality of master-slave flip-flops shows the maximum level reached by the video input signal. The outputs from the flip-flops go to a pair of priority encoders and a multiplexer for indicating in digital form the highest point reached on the resistive ladder., Supersedes PAT-APPL-854 455-77, AD-D004 664.

A speed control for a direct current motor. A reference frequency is provided to a programmable counter which provides an output divided by a predetermined number. The output from the programmable counter is one input to a phase comparator whose output drives a direct current motor through a power amplifier. A tachometer associated with said direct current motor provides a second input to said phase comparator. A trans-resistance amplifier provides negative feedback to said power amplifier and determines the overall gain. (Author)

The report lists the fundamental requirements for shipboard antenna to operate with the various meteorological satellites planned for the 1972 time period. (Author)

The report lists the results of a study to provide enlarged Direct Readout Infrared (DRIR) picture products on the Receiving Recording Set, Meteorological Data AN/SMQ-6(V). A practical method is delineated whereby DRIR information can be expanded into a more useful presentation. Various mathematical formula, graphs and outlines are included as part of the study to provide for a history in similar efforts. (Author)