Synaptics Incorporated
MITIGATING ELECTROMAGNETIC EMISSIONS FROM SENSOR ELECTRODES

Abstract:

An input device is disclosed. The input device includes: multiple sensor electrodes; and a processing system configured to: modulate a first sensor electrode of the multiple sensor electrodes with a guard signal; and mitigate electromagnetic emissions resulting from modulating the first sensor electrode with the guard signal by modulating a circuit element with an inverted version of the guard signal.