| 摘要 |
<p>PURPOSE:To prevent responsiveness from being lowered and erroneous decision from occurring at the time of the decision of input of a touch type input device. CONSTITUTION:The touch type input device is comprised of two sheets of transparent film provided with electrodes, and is comprised of a touch panel 1 provided with plural key elements, a display part 2 arranged in the rear part of the touch panel 1 and which displays the key frame and key function. etc., of the touch panel 1, an input control part 3, an A/D conversion part 4, and a control part 5, and the input control part 3 sets a threshold value to detect an input signal for the key element of the touch panel 1 by an instruction from the control part 5. Also, the A/D conversion part 4 can convert the input signal from the key element of the touch panel 1 to a digital value by the instruction of the control part 5. When the input signal converted to the digital value is decreased as the lapse of time, it is decided as invalid input.</p> |
