Patent ID: 9465497
Filing Date: 2016-10-11
CPC Classification: G06F

Claim Text:
1. A touch sensing system, comprising: a plurality of touch sensors; sensing lines connected to the touch sensors; a touch sensing integrated circuit (IC) configured to sense a touch input using signals received through a plurality of channels; a plurality of differential amplifiers formed between the sensing lines and the channels of the touch sensing IC, each of the plurality of differential amplifiers configured to amplify a difference between touch sensor signals received through adjacent sensing lines; and a multiplexer configured to connect the adjacent sensing lines to input terminals of each differential amplifier in a forward sensing mode and switch the adjacent sensing lines connected to the input terminals of each differential amplifier in a reverse sensing mode, wherein the touch sensing IC comprises an integrator connected to the differential amplifiers, an analog-to-digital converter (ADC) converting an output voltage of the integrator into a touch raw data, and a memory to which the touch raw data is stored, and wherein the touch sensing IC ignores touch raw data of signal received from at least one channel, and combines touch raw data obtained from the forward sensing mode and the reverse sensing mode based on the number of channels.