Angle sensor with offline error correction
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United States of America Patent
Stats
-
May 17, 2022
Grant Date -
Apr 8, 2021
app pub date -
Oct 4, 2019
filing date -
Oct 4, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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 Citation Ranking
- 3 Citation Count
- G01B Class
- 66.83 % this patent is cited more than
- 3 Age
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