Abstract: To detect a position an object is brought into contact or brought into proximity of the contact regions arranged with a capacitance sensor at high precision by successive values with a small number of capacitance sensors. An intensity acquiring unit acquires intensities of change in capacitance detected by capacitance sensors as detection results of when annularly arranged with respect to a first quadrant to a fourth quadrant. A horizontal calculation unit calculates a detection position in a horizontal direction of a position an object is brought into contact or brought into proximity. A vertical direction calculation unit calculates a detection position in a vertical direction of a position an object is brought into contact or brought into proximity. A position output unit outputs positions in the horizontal direction and the vertical direction of the position the object is brought into contact or brought into proximity.