Method and device for reading electrical charges produced by a photo-detector, and detector comprising such devices
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United States of America Patent
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Oct 9, 2012
Grant Date -
Apr 15, 2010
app pub date -
Sep 28, 2009
filing date -
Oct 15, 2008
priority date (Note) -
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Abstract
A method of reading electrical charges produced by a photo-detector of a photo-detector matrix includes collecting and storing electrical charges produced by the photo-detector in a first capacitive element, transferring the charges stored in the first capacitive element to a second capacitive element, and reading the voltage at the terminals of the second capacitive element. The transfer followed by the reading is carried out in at least two phases: at least one first phase taking place during the collection and storage of the charges in the first capacitive element, and a second phase taking place at the end of the collection and storage of the electrical charges in the first capacitive element.
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