Accession Number : ADD008310

Title :   Automatic Responsivity Compensator in an IR Imaging System.

Descriptive Note : Patent,


Personal Author(s) : Van Atta,Peter W ; Harwell,Max L

Report Date : 30 Sep 1980

Pagination or Media Count : 5

Abstract : An automatic responsivity compensator for correcting video output signals from a CCD multiplexer in a cryogenic dewar in IR imaging systems wherein the CCD multiplexer must operate with fixed gain inputs from a plurality of linear detector channels. The automatic responsivity compensator is comprised of a signal reference that is normalized with what the output voltage should be when looking at a fixed temperature source in the field of view of the detectors and which further provides a voltage reference for automatic gain adjustment for each detector channel to normalize and equalize the responsivity of the detectors. The automatic responsivity compensator may be either a feedback system as a direct gain control means of a controllable gain amplifier or may be a feedback system operating on the output from a constant gain amplifier wherein either feedback system equalizes the responsivity of the detectors. (Author)

Descriptors :   *Patents, *Compensators, *Image processing, *Infrared images, Charge coupled devices, Multiplexing, Infrared equipment, Cryogenics, Response, Automatic gain control, Infrared scanning, Monolithic structures(Electronics)

Subject Categories : Electrical and Electronic Equipment
      Infrared Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE