The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 2017
Filed:
Feb. 24, 2016
Apple Inc., Cupertino, CA (US);
Apexit Shah, Cupertino, CA (US);
Seyed M. Navidpour, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
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.