| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a touch panel input circuit capable of improving the feeling of operation by giving the feeling of stroke at a certain level to an operator. SOLUTION: A main control part 6 displays a key input screen for calling a key input to the operator through a display control part 5 onto a display part 4, monitors an analog/digital(A/D) converter 3 and detects whether the touch panel 1 is pressed or not. When a voltage is inputted to the A/D converter 3, the main control part 6 stores digital data from the A/D converter 3 into a random access memory(RAM) 7 as a coordinate value. Based on these coordinate data, the main control part 6 judges the display size of a key displayed at that coordinate position and judges whether the key display size is larger or smaller than a prescribed size. When the key display size is larger than the prescribed size, after the lapse of fixed pressing time measured by a timer part 8, the main control part 6 judges the touch panel 1 is pressed.</p> |
