| 摘要 |
PURPOSE:To shorten the time of cursor control operation and to improve its efficiency, by outputting signals for the movement of a cursor and control over cursor display size through the operation of a key switch having a single key top. CONSTITUTION:When the cursor K on a display part 2 is moved upward to left, the left upper position A on the key top 6 is depressed from right above. When the display size of the cursor K is changed, the key top 6 is slid in a direction B or C, and consequently the display size of the cursor K increases or decreases; when the finger is released after the cursor of desired size is displayed, the key top 6 returns to its original position and the cursor K of the desired display size is obtained. |
