Search International and National Patent Collections

1. (WO2018085168) LOCATING AN ACTIVE STYLUS OVER A CAPACITIVE SENSOR

Pub. No.:    WO/2018/085168    International Application No.:    PCT/US2017/058929
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Tue Oct 31 00:59:59 CET 2017
IPC: G06F 3/041
G06F 3/044
Applicants: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventors: WESTHUES, Jonathan
QIAO, Tianzhu
Title: LOCATING AN ACTIVE STYLUS OVER A CAPACITIVE SENSOR
Abstract:
Examples are disclosed herein that relate to capacitive touch sensor operation. An example provides a method for operating a display system having a capacitive touch sensor comprising operating the touch sensor over a plurality of successively repeating touch frames, with the touch sensor, determining a motion vector for an active stylus in relation to the touch sensor, and in each of the touch frames, for a stylus-interaction sub-frame of that touch frame allocated for performing electrostatic interaction between an active stylus and the touch sensor, selecting a portion of the touch sensor based on the motion vector. In each of the stylus-interaction sub-frames, the selected portion of the touch sensor may be operated differently than other portions of the touch sensor to carry out the electrostatic interaction.