SYSTEMS, METHODS, AND DEVICES FOR SENSOR PROTECTION CIRCUIT

Abstract: systems, methods, and devices provide protection for sensing circuits. methods may include providing, using a microcontroller unit (mcu), a drive signal to a touch sensor via an asymmetric conductance element of a protection circuit, providing, using the mcu, a scanning signal to the touch sensor via an additional conductance element of the protection circuit, and receiving, at the mcu, a sense signal from the touch sensor via the additional conductance element of the protection circuit. methods also include determining, using the mcu, if a touch event has occurred based on measurements obtained during scanning of the touch sensor.

Inventor(s): Xiaowei Zhang

CPC Classification: H03K17/9622 ({using a plurality of detectors, e.g. keyboard})

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