| 摘要 |
<p>PROBLEM TO BE SOLVED: To not only facilitate screen scroll but also reduce physical burdens by a scroll operation by converting a detected voltage into the moving speed of a display screen in a voltage conversion means and generating movement information for indicating the moving speed. SOLUTION: The detected voltage is converted into the moving speed of the display screen in the voltage conversion means and the movement information for indicating the moving speed is generated. For instance, in the case upward scroll is desired, a pressure is applied with a finger to a button corresponding to a variable resistor 502-1 for performing the upward operation of a scroll operation part 512. A pressure detection part 513 reads resistance value change by the applied pressure and it is converted into a scroll speed in a scroll information generation part 514. The pressure detection part 513 detects the change of a voltage value while supplying a fixed voltage from the button 513-1 to the variable resistor 502-1 at all times. The scroll information generation part 514 converts the voltage read by the pressure detection part 513 into the speed.</p> |
