Patent ID: 9335148
Filing Date: 2016-05-10
CPC Classification: G01B,G01D,G01R,G06F

Claim Text:
1. An electrostatic capacitance value distribution detecting device for detecting distribution of values of a plurality of electrostatic capacitances that are formed at respective intersections where a plurality of first signal lines intersect a plurality of second signal lines, the electrostatic capacitance value distribution detecting device detecting the distribution by (i) driving the plurality of first signal lines at a first time to output, from the plurality of second signal lines, electric charges corresponding to the plurality of electrostatic capacitances, (ii) switching connection of the plurality of first and second signal lines at a second time after the first time, and (iii) driving the plurality of second signal lines at a third time after the second time to output, from the plurality of first signal lines, electric charges corresponding to the plurality of electrostatic capacitances, the electrostatic capacitance value distribution detecting device comprising an external noise determining section which determines whether or not external noise exists, the external noise being generated via a touching indicator along a direction in which the electric charges are outputted, wherein, in a case where the number of electrostatic capacitances where signals corresponding to the values exceed a detection threshold is a threshold exceeding electrostatic capacitance number, the external noise determining section determines whether or not the external noise exists, on the basis of (i) a first threshold exceeding electrostatic capacitance number of a first detection region along one of the plurality of first signal lines and (ii) a second threshold exceeding electrostatic capacitance number of a second detection region along one of the plurality of second signal lines.