PORTABLE ELECTRONIC DEVICE HAVING DIGITIZER, CORRECTION METHOD, AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To correct writing pressure data of a digitizer panel.SOLUTION: A digitizer panel 25 is mounted on a tablet terminal, and in operation with an electronic pen 100, the electronic pen and the digitizer panel rotates independently. When a pen shaft of the electronic pen is inclined with respect to a normal line of an operation surface 22, the magnitude of a writing pressure to be felt and writing pressure data generated by the digitizer panel diverges from each other. A system detects a rotation of the digitizer panel 25 and a rotation of the electronic pen to calculate both relative angles. The system corrects the writing pressure data generated by the digitizer panel with the relative angle.