Patent ID: 9389740
Filing Date: 2016-07-12
CPC Classification: G06F

Claim Text:
1. A touch sensing apparatus capable of supporting hover sensing of a touch panel including a plurality of driving electrodes and a plurality of sensing electrodes, comprising: a plurality of capacitance-voltage converters (C-V converters) outputting different voltage values depending on a change in capacitance of each of the sensing electrodes; a plurality of integrators integrating output voltages of each of the C-V converters; a first multiplexer multiplexing outputs of the plurality of integrators; a second multiplexer multiplexing the outputs of the plurality of integrators; a first differential amplification unit for touch sensing receiving an output of the first multiplexer and an output of the second multiplexer; a second differential amplification unit for hover sensing receiving the output of the first multiplexer and the output of the second multiplexer; and a control unit sensing a touch event or a hover event based on an output of the first differential amplification unit and an output of the second differential amplification unit.