Patent ID: 9658728
Date: 2017-05-23
CPC Classifications: G06F

Claim:
1. A touch panel controller, comprising: a capacitance driving unit which causes a linear sum signal based on charges, which are accumulated in a plurality of electrostatic capacitances arranged in a corresponding row, to be output from at least one sense line of a touch panel including a plurality of drive lines in which respective columns of a plurality of electrostatic capacitances arranged in a matrix manner are arranged and a plurality of sense lines in which respective rows of the plurality of electrostatic capacitances are arranged, by driving the plurality of drive lines in parallel; a driving signal generation unit which outputs each of a plurality of driving signals for driving the plurality of drive lines in parallel to the capacitance driving unit by using code sequences, wherein the code sequences include high-correlation code sequences and low-correlation code sequences; and a correlation control unit which performs control to switch between high-correlation code sequences and low-correlation code sequences according to a detection distance which is a distance between a surface of the touch panel and an object to be detected.