Electronic device and coordinate detecting method

A coordinate detecting method to be used for an electronic device that includes:

• a housing;
• a display that is disposed inside the housing and that displays predetermined information;
• an electrostatic-capacitance touch panel that allows visible light corresponding to display contents of the display to pass through the electrostatic-capacitance touch panel;
• a transparent member that protects the touch panel and that allows visible light corresponding to display contents of the display to pass through the transparent member;
• and
• a depression detector that detects deformation of the transparent member, wherein
• the touch panel is configured to detect a pair of two-dimensional coordinates indicated by an indicator having predetermined conductivity and spaced from the touch panel at a predetermined distance,
• the method comprising:
• when the touch panel detects a plurality of the pairs of two-dimensional coordinates and when the depression detector detects a predetermined amount of deformation after the pairs of two-dimensional coordinates are detected,
• validating at least one pair of two-dimensional coordinates detected during a predetermined time period previous to a time point when the deformation is detected;
• and
• not validating a pair of two-dimensional coordinates detected before the predetermined time period previous to the time point when the deformation is detected,
• wherein the predetermined time period does not include a deformation of an amount equal to or greater than the predetermined amount of deformation.