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:
Jul. 09, 2019
Filed:
Feb. 10, 2016
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Tianzhu Qiao, Portland, OR (US);
Jonathan Westhues, Portland, OR (US);
MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US);
Abstract
A touch-sensitive display device includes a touch sensor, drive circuitry and receive circuitry. The touch sensor has a matrix of row electrodes and column electrodes. The drive circuitry drives the row electrodes during a touch-sensing frame to influence electrical conditions on the column electrodes. The receive circuitry, during the touch-sensing frame, for each row electrode of the matrix, measures a capacitance of each column electrode while the row electrode is being driven, for each of a plurality of different sections of column electrodes of the matrix, performs local analysis of the measured capacitances of the column electrodes of the section to estimate a row-specific noise capacitance for each column electrode, and determines a touch input based on a difference between the measured capacitance of the column electrode while the row electrode is being driven and the estimated row-specific noise capacitance of the column electrode.