| 摘要 |
<p>PURPOSE:To secure key input operation by erasing a key display on a CRT screen corresponding to a key operated on a touch panel for a specific time, and inhibiting the input operation of the key. CONSTITUTION:Display data for displaying an operation guidance message, etc., on the CRT3 are edited by a CRT display control part 43. Driving control over whether the touch panel 4 is allowed to be used or not is performed by a touch panel control part 44. Those CRT display control part 43 and touch panel control part 44 are connected to a CPU41 and memory 42 through a bus line 45. A memory area for storing the table of a key array is assigned in the memory 42. When key operation is performed on the touch panel 4, its data is inputted to the CPU41 through the touch panel control part 44 to retrieve the contents of the memory 42; when there is an address corresponding to the key position, an input inhibiting instruction from the touch panel 4 is sent out to the control part 44 for a specific time.</p> |
