Light propagation time camera
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United States of America Patent
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Jan 3, 2017
Grant Date -
Nov 21, 2013
app pub date -
Aug 22, 2011
filing date -
Sep 30, 2010
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Abstract
A time-of-flight camera includes a photosensor and a reference photosensor. Each of the photosensors have accumulation gates and each are configured as a photomixing detector (PMD). A readout device is connected to the accumulation gates of the photosensor and to the accumulation gates of the reference photosensor. The readout device is configured to read out an electric quantity that corresponds to a charge that is present at respective ones of the accumulation gates. An integration time of accumulating the charges is the same for the photosensor and for the reference photosensor and is dimensioned so as to prevent the reference photosensor from reaching saturation during operation of the time-of-flight camera.
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