Patent ID: 8730197

Claim:
A touch panel controller, comprising: a driving section for driving M drive lines on the basis of a code sequence having a length of N (N≧M) so as to drive (i) a plurality of first electrostatic capacitors provided between the respective M drive lines and a first sense line and (ii) a plurality of second electrostatic capacitors provided between the respective M drive lines and a second sense line that is adjacent to the first sense line so that (i) a first linear sum of first capacitance values of the respective plurality of first electrostatic capacitors is outputted from the first sense line and (ii) a second linear sum of second capacitance values of the respective plurality of second electrostatic capacitors is outputted from the second sense line; a differential amplifier for amplifying a difference between the first linear sum and the second linear sum; and correction means for correcting a line dependency between the first capacitance values and the second capacitance values.