IMAGE SENSOR WITH DOUBLE CHARGE TRANSFER FOR LARGE DYNAMIC RANGE AND METHOD OF READING

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United States of America Patent

APP PUB NO 20110234876A1
SERIAL NO

13133052

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Abstract

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The invention relates to image sensors with active pixels.) in the same capacitor. This second sampling depends on the observation of the potential of the column conductor after the integration of charges corresponding to the longer period; this potential is compared to a threshold. If the comparison indicates a risk of saturation, the information collected during the shorter period is collected and retained in the sampling capacitor in order for it to be multiplied by a coefficient representing the ratio between the longer period and the shorter period. If the comparison indicates that there is no risk of saturation, the information collected during the longer period is collected and retained in the sampling capacitor. The shorter period is, in principle, the first period.

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Patent Owner(s)

Patent OwnerAddress
E2V SEMICONDUCTORSFRENCH SHENGAIGELEIFU

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Leconte, Jacques Berland, FR 1 8

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