Patent ID: 8884894

Claim:
An input detection device for detecting a touch input from an input interface of a touch sensor provided with electrodes arranged in a matrix, comprising: a reading part reading the touch input from the input interface by scanning the electrodes from an end of the input interface to an opposite end of the input interface, wherein in every horizontal scanning even electrode lines which are successive on a scanning sequence are scanned, and by acquiring a difference between detection data obtained from a half of the even electrode lines which are successive on the scanning sequence and detection data obtained from another half of the even electrode lines which are successive on the scanning sequence, wherein the difference is also acquired in the case where at least one of the even electrode lines is an electrode line located at the end of the input interface and at least one of the even electrode lines is an electrode line located at the opposite end of the input interface; and a calculation part integrating the difference acquired in every horizontal scanning to obtain integration results representing touch information, wherein the calculation part comprises a reset part wherein if the integration result obtained by the calculation part in the case where at least one of the even lines is an electrode line located at the end of the input interface and at least one of the even electrode lines is an electrode line located at the opposite end of the input interface is not satisfied with 0, the reset part resets the integration result or the detection data obtained from the electrode line which is located at the opposite end of the input interface to be 0.