Multi-stage stylus scanning
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United States of America Patent
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Apr 12, 2016
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N/A
app pub date -
Jan 14, 2013
filing date -
Jan 17, 2012
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Abstract
A system comprises a processing device and a capacitive sense array that includes a plurality of electrodes. The system performs a first scan of a plurality of electrodes in a capacitive sense array to determine a position of a stylus. The system also performs one or more additional scans of subsets of the plurality of electrodes to determine additional positions of the stylus. The system may continually perform the additional scans on of the subsets of the plurality of electrodes until the stylus is no longer detected.
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