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1. (WO2018063787) MUTUAL CAPACITIVE SENSING ON A MATRIX SENSOR

Pub. No.:    WO/2018/063787    International Application No.:    PCT/US2017/051015
Publication Date: Fri Apr 06 01:59:59 CEST 2018 International Filing Date: Tue Sep 12 01:59:59 CEST 2017
IPC: G06F 3/044
G06F 3/041
Applicants: SYNAPTICS INCORPORATED
Inventors: TANEMURA, Tetsuo
SHEPELEV, Petr
Title: MUTUAL CAPACITIVE SENSING ON A MATRIX SENSOR
Abstract:
An input device and related processing system and method are disclosed for acquiring capacitive measurements. The input device comprises a plurality of sensor electrodes having a repeating arrangement. The plurality of sensor electrodes comprises first sensor electrodes and second sensor electrodes, wherein each first sensor electrode is bordered by a plurality of the second sensor electrodes and forms a respective plurality of sensing nodes with respective ones of the plurality of the second sensor electrodes. The input device further comprises a processing system coupled with the plurality of sensor electrodes. The processing system is configured to sequentially acquire, for each first sensor electrode, a respective plurality of individual measurements, and determine, for each first sensor electrode and using the plurality of individual measurements, a respective plurality of transcapacitive measurements corresponding to the respective plurality of sensing nodes.