Patent ID: 9367168
Filing Date: 2016-06-14
CPC Classification: G06F

Claim Text:
1. A touch screen system comprising: a touch screen panel comprising a plurality of first lines, a plurality of second lines crossing the first lines, and a plurality of sensing cells formed at crossing regions of the first lines and the second lines; a driving circuit for sequentially applying a driving signal to the first lines; a first sensing circuit for receiving capacitance change information sensed by the first lines, and generating a first sensing signal corresponding to the capacitance change information; a selecting unit for selectively coupling the first lines to the driving circuit or the first sensing circuit; a second sensing circuit for receiving the capacitance change information sensed by the sensing cells from the second lines, and generating a second sensing signal corresponding to the capacitance change information; and a processing unit for receiving a sensing signal from the first sensing circuit and/or the second sensing circuit, and determining a detected touch position, wherein each of the first sensing circuit and the second sensing circuit comprises: wherein a period of an electric field signal emitted by an active stylus is set as 4/3 of the sampling period.