Pixart Imaging Incorporated

Meng-Lin Yu

Yu-Han Chen

Hsin-Chia Chen

Sung-Han Wu

Ming-Hung Tsai

Kok-Siang Tan

Kei-Tee Tiew

There is provided a parallel sensing touch control device including a capacitive sensor array processed by differential unit. In one detection interval, the device is concurrently conducting more than one sensing electrode of the capacitive sensor array so as to reduce a scanning interval of the capacitive sensor array. The differential unit performs a differential operation on detected signals to cancel out common mode noise.

Parallel sensing touch control device and operating method thereof

There is provided a capacitive touch device including a touch panel, a detection circuit and a processing unit. The touch panel includes a plurality of drive electrodes and a plurality of receiving electrodes configured to form a coupling electric field with an external touch panel, and the receiving electrodes are respectively configured to output a detection signal. The detection circuit is coupled to one of the receiving electrodes and configured to modulate the detection signal with two signals to generate two detection components. The processing unit is configured to obtain a phase value according to the two detection components to accordingly decode transmission data.

Capacitive touch device and capacitive communication device

Capacitive touch device, capacitive communication device and communication system

Growing community of inventors

Hsin-Chu County, Taiwan

Meng-Lin Yu