DEVICE AND METHOD FOR INPUTTING POSITION INFORMATION

摘要

PURPOSE:To remove an unsuitable coordinate generated by the fluctuation of an output coordinate and to obtain position information which is always stable in a position information input device using a tablet. CONSTITUTION:The number of samplings in an A/D conversion circuit is set by a control signal SA, plural temporary coordinate positions for the designation position this time are taken, and they are stored in a register group 22. Distances between the respective temporary coordinate positions and the previous coordinate position which is previously stored in a register 23 are respectively calculated, and the temporary coordinate position where the distance of the both positions have an intermediate value is selected, and it is outputted as a true coordinate position.