Abstract: 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.

Abstract: 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.

Abstract: A technique for PAR reduction involves producing an optimized clipping pulse. The optimized clipping pulse may be designed to meet certain requirements, such as a spectral mask target or an EVM target, when applied to a signal.