Noise correction for a stylus touch device

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United States of America Patent

PATENT NO 9811181
SERIAL NO

15052435

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In one aspect, the present disclosure relates to a method and system for performing a noise correction technique including determining core electrodes and non-core electrodes, generating a noise estimate for each electrode based on electrodes that are at least an offset distance away from the electrode, correcting the signal at each electrode based on the noise estimate, and setting the corrected signal to zero if the corrected signal has a sign that is opposite the sign of the peak magnitude signal. By performing this method, noise induced on sense lines of a stylus by an LCD can be corrected for and accuracy of stylus positioning may be improved.

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Patent Owner(s)

  • APPLE INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Navidpour, Seyed M Cupertino, US 2 56
Shah, Apexit Cupertino, US 11 64

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