Marvellworld Trade Ltd.

Bike Xie

Songping Wu

Kanke Gao

Hao Zhou

Zixia Hu

Hangjian Yuan

Xudong Shen

Lun Dong

System and methods are provided for touch detection. An example system includes: a measurement unit configured to acquire capacitance measurement data from a touch panel; a pre-processing unit configured to detect whether a touch event occurs on the touch panel based at least in part on the capacitance measurement data and generate an activation signal in response to the detection of the touch event; and a microcontroller unit configured to be activated in response to the activation signal to perform post-processing operations related to the touch event.

Systems and methods for capacitive touch detection

System and methods are provided for tracking baseline signals for touch detection. The system includes: a comparison network configured to determine whether an input baseline signal is within a tracking range; a filter network configured to generate an output baseline signal for touch detection based at least in part on the input baseline signal according to one or more filter parameters; and a signal processing component configured to update the one or more filter parameters based at least in part on the determination of whether the input baseline signal is within the tracking range.

Systems and methods for tracking baseline signals for touch detection

This disclosure describes systems and techniques for implementing a touchscreen. These systems and/or techniques enable processing of a signal generated from one or more sensors of a touchscreen to reduce noise and increase accuracy.

Touchscreen system

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San Jose, CA, United States of America

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