Servo control with self calibrating preset

Details Servo control with self calibrating preset Servo control with self calibrating preset

1988-11-03

1991-01-01

Moskowitz, Nelson

Communications: directive radio wave systems and devices (e.g.,

Radar transponder system

Radar transponder only

342 83, 342199, G01S 1380

Patent

active

049821954

ABSTRACT:
A frequency input for receiving a frequency signal and digital storing for storing the received frequency signal. A controller has a first and second input and an output. The first input is connected to the digital storage for providing a reference signal and the output provides a frequency control signal. The second input is connected to circuitry for changing the operation mode of the controller to either an amplifier or an integratory. As an amplifier, a digitally set offset and gain is applied to the amplifier for providing an output generating approximately the frequency of a prior signal. A switch connects the frequency output to the second input when operating in the integrating mode to control the output for generating a desired frequency.

REFERENCES:
patent: 4063173 (1977-12-01), Nelson et al.
patent: 4412219 (1983-10-01), Briggs

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