Patent ID: 6229529
Filing Date: 2001-05-08
Classification: G06F

Abstract:
A coordinate input device comprising:a write point detecting circuit repetitively detecting and outputting first coordinates and second coordinates, wherein a pair of coordinates including a first coordinate and a second coordinate defines a position of a respective write point; anda coordinate determining circuit determining coordinates of write points on the basis of the output of the write point detecting circuit,wherein in case plural first coordinates and/or plural second coordinates are detected and outputted by the write point detecting circuit for a single selected period, said plural coordinates yielding a greater number of potential write points than an actual number of write points for the period, said coordinate determining circuit compares a time of detection of the plural first coordinates and the time of detection of the plural second coordinates for each potential write point and selects for the actual write points, respective pairs of coordinates each comprising a first coordinate and a second coordinate that have the shortest times between the detection of the first and the second coordinate of the pair by the write point detecting circuit.