| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent an operation instruction, for which returning is difficult or complicated, from being accidentally input, while maintaining operability. <P>SOLUTION: When a control part 10 has executed processing corresponding to an operation mark which is accidentally pressed, the control part determines that the operation instruction has been input when an operator 8 presses and then releases a deletion mark 5C, for a deletion mark 5C for which it is difficult to return to the state before the execution of the processing or complicated operation is required for returning; and after the operator 8 presses the deletion mark 5C, when the pressing position moves on the screen of a display part 2 and separates from the deletion mark 5C, the control part cancels the determination of the input of the operation instruction with regard to the deletion mark 5C, and determines that the operation instruction has been input when the operator 8 presses a next-page mark 5A or a previous-page mark 5B, for the next-page mark 5A or the previous mark 5B. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
