METHOD AND APPARATUS FOR REDUCING COUPLED NOISE INFLUENCE IN TOUCH SCREEN CONTROLLERS.

摘要

Apparatuses and methods to reduce the influence of a noise signal on touch screen controllers are described. One apparatus includes a detector to determine a presence of a noise signal from a display coupled to a capacitive touch screen. The apparatus also includes a synchronization circuit to synchronize signals produced by a touch screen controller with the noise signal to reduce the influence of the noise signal on capacitance measurements by the touch screen controller.