ON-CHIP BIAS CALIBRATION FOR MICROBOLOMETER DETECTORS AND READOUT INTEGRATED CIRCUITS

A readout circuit that allows on-chip bias calibration of a microbolometer focal plane array (FPA). The readout circuit includes a memory for storing one or more biasing values for a plurality of pixels within the FPA, the plurality of pixels being arranged in one or more columns and one or more row...

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Bibliographische Detailangaben
Hauptverfasser: COLOGLU, Mustafa Haluk, AKIN, Tayfun, TEPEGOZ, Murat
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A readout circuit that allows on-chip bias calibration of a microbolometer focal plane array (FPA). The readout circuit includes a memory for storing one or more biasing values for a plurality of pixels within the FPA, the plurality of pixels being arranged in one or more columns and one or more rows within the FPA. The readout circuit further includes a column readout connected to the memory and configured to search for the one or more biasing values and to apply a bias adjustment based on the one or more biasing values to a signal received from the FPA. The readout circuit further includes a column multiplexer connected to the column readout and configured to perform dynamic column selection for one or more columns of pixels within the FPA.