LOW CONTRAST MIDWAVE FLIR IMPLEMENTATION
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United States of America Patent
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Issued Date -
May 31, 2012
app pub date -
Feb 23, 2011
filing date -
Feb 24, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An infrared camera system for low contrast employs a focal plane array (FPA) of a plurality of detector diodes. A read out integrated circuit (ROIC) including a plurality of integration switches is connected to the plurality of detector diodes. A frame mean calculator receives raw data from the FPA and an integration time servo receives a frame mean from the frame mean calculator and a preprogrammed target mean. The integration time servo compares the frame mean and target mean and provides an integration time output to the ROIC responsive to the comparison for control of the integration switches.
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