Patent ID: 8957848
Filing Date: 2015-02-17
Classification: G06F

Abstract:
1. A data input device for an electronic instrument, the data input device comprising: an operation section which comprises a flat data input operation surface, and an electrostatic capacitance type touch sensor to sense a data input operation implemented to the data input operation surface; and a control circuit section into which sensed data on the data input operation from the operation section is entered, and which determines if the data input operation is true or false and sends to an electronic instrument an output data corresponding to the sensed data only when the data input operation is determined as true based on invalidation determination region information, in which a plurality of invalidation determination regions is previously prepared for each of a plurality of coordinates, each of the plurality of invalidation determination regions having a validated coordinate, respectively, wherein when one or more of the sensed data are entered into the control circuit section, the control circuit section identifies one or more of the validated coordinates, at each of which the data input operation is determined as true based on invalidation determination region information, and wherein when the control circuit section identifies one or more of the validated coordinates, each of which the data input operation is determined as true, the control circuit section determines data input operation to a coordinate, which is other than the validated coordinate within the respective invalidation determination region, as false.