Method and device for counting objects

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United States of America Patent

PATENT NO 9817027
SERIAL NO

14383456

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In the field of the counting of objects, a use is provided of a photosensitive assembly comprising at least one photodiode or one photoresistor, and a source of uniform illumination for illuminating the assembly, the establishment of a reference current supplied by the photosensitive assembly for an illuminated region of this assembly corresponding to a given fraction of the surface of the assembly, the disposition of objects to be counted against the photosensitive assembly, the illumination of the assembly by the source, the objects masking a part of the surface of the assembly, measurement of the current supplied by the assembly, and determination of a ratio between measured current and reference current to deduce the proportion between the surface area of photosensitive element illuminated and the surface area masked by the objects disposed. From this ratio, information on the number of objects disposed on the photosensitive assembly is extracted.

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Patent Owner(s)

  • COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES;ISORG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Premont, Christophe Sassenage, FR 10 267
Segura, Puchades Josep Fontaine, FR 17 105

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