Patent ID: 8988397
Filing Date: 2015-03-24
Classification: G06F

Abstract:
1. A display control apparatus that performs calibration to correct for a coordinate deviation between detected coordinates, which are coordinates corresponding to touch input to target coordinates defined in advance, and the target coordinates, comprising: a detected coordinate obtainment unit configured to perform transformation of the touch input to obtain the detected coordinates using a transformation coefficient for transforming the touch input into coordinates on a display unit; a first decision unit configured to, when the detected coordinates are obtained inside a first range defined in advance using the target coordinates as a base point, decide the detected coordinates as calibration coordinates for use in calibration; a second decision unit configured to, when said detected coordinate obtainment unit obtains a plurality of detected coordinates outside the first range, obtain a relationship between the plurality of detected coordinates obtained outside the first range, determine whether the obtained relationship satisfies a specific condition determined in advance, and when the number of times of determination in which the specific condition is satisfied becomes equal to a predetermined number of times, and decide the plurality of detected coordinates obtained outside the first range as calibration coordinates for use in calibration; and a calibration unit configured to perform a calibration process to update the transformation coefficient based on the calibration coordinates decided by said first decision unit and/or said second decision unit.