| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide tool force without providing a pen with a device such as a sensor or the like by calculating the coordinate of pen input from the ratio of current amounts obtained from plural electrodes and calculating the tool force of the pen input from the total sum of the current amounts obtained from the plural electrodes. SOLUTION: A controller 204 sends coordinate position information and tool force information for which the pen 206 touches a touch panel 205 to a CPU 201 as data based on fine current signal information from the touch panel 205. The CPU 201 stores the data in a memory 202 and displays the information at a corresponding screen position based on the data. At the time of obtaining the coordinate value, a current from the touch panel 205 is supplied from the electrodes at the four corners of the touch panel 205 to the controller 204, a coordinate where the pen 206 touches the touch panel 205 is obtained from the balance of the four current amounts and the tool force is obtained from the overall size of the four current amounts simultaneously.</p> |
