| 摘要 |
PURPOSE: A button efficiency enhancement method is provided to enhance the convenience of a task by displaying the buttons which is used frequently at closed place to a display unit. CONSTITUTION: A predefined task is performed by combination situation. The combination situation includes the combination of more than 2 buttons, the sequence of the combination, and the pressing type. The character button for character, numbers, and symbols is used as the combination guide button when the combination or the combination situation is individually turned on.
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