Motion sensor assembly for determining the angular velocity of a moving contrast in its field of view with a high accuracy

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United States of America Patent

PATENT NO 9797919
SERIAL NO

14438601

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Abstract

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A motion sensor assembly is adapted to determine an angular velocity of a moving contrast in its field of view. The motion sensor assembly includes: a motion sensor with a first and a second analog photoreceptor each adapted for observing the moving contrast, the first and the second photoreceptors being separated by a predetermined interreceptor angle; and an angular velocity calculating unit connected to the first and second photoreceptors for calculating the angular velocity of the moving contrast based on a first and a second analog signal delivered by the first and the second photoreceptors, respectively. The first and the second analog signals delivered by the first and the second photoreceptors at are sampled a given sampling frequency to obtain a first and a second digital signal, respectively. An interpolator is configured to interpolate the first and the second digital signals upon their crossing a predetermined threshold between successive samples.

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Patent Owner(s)

Patent OwnerAddress
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C N R S )75016 PARIS
UNIVERSITE D'AIX MARSEILLE58 BOULEVARD CHARLES LIVON MARSEILLE CEDEX 7 13284

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Expert, Fabien Aubagne, FR 2 6
Ruffier, Franck Marseilles, FR 5 29

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