METHOD AND SYSTEM FOR MANAGING DEFECTS IN FOCAL PLANE ARRAYS USING REDUNDANT COMPONENTS
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United States of America Patent
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Issued Date -
Oct 8, 2015
app pub date -
Apr 3, 2014
filing date -
Apr 3, 2014
priority date (Note) -
Abandoned
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Abstract
A focal plane array having: an imaging array section, comprising: an array of electromagnetic radiation detectors; and an address section providing outputs from selectively enabled detectors. The imaging array section comprises a plurality of circuit blocks, each one of the circuit blocks having a primary circuit and a redundant circuit. Test circuitry is for provided for supplying test signals to test each one of the primary circuits and determining whether a response from the test signals is proper or improper and for storing in the test circuitry in response to such determining select signals associated with each one of the tested circuit blocks. An array controller is provided for, during a subsequent normal operating mode, providing timing pulses to the address section wherein the address section selectively enables the detectors using either the primary or redundant circuits in the plurality of circuit blocks selectively in accordance with the stored select signals.
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