Raytheon Company

Henry Lee

Matthew C Thomas

Jehyuk Rhee

A LADOR circuit is in signal communication with a pixel array. The LADOR circuit is configured to generate an integrator reset voltage based on a resistance of the at least one heated bolometer pixel, and to detect laser energy incident on the at least one heated bolometer pixel based on a comparison between the integrator reset voltage and an input threshold voltage (Vthreshold).

Bolometer readout integrated circuit (ROIC) with energy detection

A trigger sense circuit includes a pseudo-differential comparator circuit in signal communication with a pixel array. The pseudo-differential comparator circuit includes a first input in signal communication with a reference pixel group included in the pixel array to receive a pixel reference voltage, and a second input in signal communication with a target pixel group included in the pixel array to receive a pixel target voltage. The pseudo-differential comparator circuit is configured to selectively operate in a calibration mode to remove false trigger events and a comparison mode to detect at least one overheated pixel included in the target pixel group.

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Goleta, CA, United States of America

Henry Lee