| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an input device with plural input switches. <P>SOLUTION: An image formation device 1 comprises touch switches SW11, SW12 with different maximum electrostatic capacity values generated when an input medium comes into contact with it. The image formation device 1 comprises an A/D converter 13 serially connected to the touch switches SW11, SW12, and detecting the electrostatic capacity value generated when the input medium contacts or approaches to at least any one of the touch switches SW11, SW12. The image formation device comprises a threshold resistor 14 for storing a touch recognition range TR indicating a predetermined range of the electrostatic capacity value generated when the input medium contacts at least any one of the touch switches SW11 and SW12. The image formation device comprises a comparator 15 for detecting the touch switches SW11 and SW12 accepting an input from the input medium on the basis of comparison between the electrostatic capacity value detected by the A/D converter 13 and the touch recognition range TR stored in the threshold resistor 14. <P>COPYRIGHT: (C)2013,JPO&INPIT |
