| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a tablet device of a resistance film system capable of inputting indicated position information and additional information. SOLUTION: Resistance films 11 and 12 are structured so that at the time of pressing the indicated position of an inputting face with a finger or a pen, the resistance films 11 is deviated to be connected with the resistance film 12. A voltage applying means is constituted by including a DC power source 20, switches 15A, 15B, 16A, 16B, 17B and 18A to apply voltage to the resistance films 11 and 12. In addition electrodes 13A and 14A are connected with an A/D converter 31 being a potential measuring means by way of a switch 19 to measure potential. A connection route between the switch 19 and the electrode 14A is connected with the negative electrode (potential V1) of the DC power source 20 through a resistance 22.</p> |
