Angle sensor with offline error correction

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United States of America Patent

PATENT NO 11333486
APP PUB NO 20210102798A1
SERIAL NO

16593308

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Abstract

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An angle sensor can have a plurality of magnetic field sensing elements configured to detect a magnetic field and generate a respective plurality of magnetic field signals. In response to these magnetic field signals, a processor generates an uncorrected angle signal that is indicative of an angle of the magnetic field. An error corrector generates an error value using one or more of the previous samples of the uncorrected angle signal, and a summation element applies the error value to a current sample of the uncorrected angle signal to generate a corrected angle signal. The error corrector can generate the error value by applying a correction factor to a previous sample of the uncorrected angle signal, or by applying a correction factor to a predicted current sample of the uncorrected angle signal.

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Patent Owner(s)

Patent OwnerAddress
ALLEGRO MICROSYSTEMS LLC115 NORTHEAST CUTOFF WORCESTER MA 01606

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alpago, Octavio H Buenos Aires, AR 17 84
Rigoni, Nicolas Buenos Aires, AR 10 37

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