Imaging device with zero ohmic drop in a data conductor
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United States of America Patent
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Jan 31, 2017
Grant Date -
Aug 15, 2013
app pub date -
Sep 28, 2011
filing date -
Sep 29, 2010
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Abstract
An imaging device comprising comprises a matrix of pixels, at least one data conductor connected to several pixels of the matrix, organized row-wise and successively transporting signals delivered by respectively the pixels of the row and an electronic current generator supplying several pixels, each of the pixels comprising: a transistor delivering at the node of the pixel, the signal delivered by the pixel considered and wherein can flow a bias current from the current generator, and a first electronic switch connecting the node of the pixel to the data conductor associated with this pixel as a function of a selection signal of the pixel. Each of the pixels comprises a second electronic switch, distinct from the first electronic switch, joined to the node of the pixel, the current arising from the generator to be made to flow in the transistor as a function of the selection signal for the pixel.
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