| 摘要 |
<p>PURPOSE: To execute an input operation which is accurate and self-explaning and is easily surveyed even in the case of a screen and an input device having small dimensions. CONSTITUTION: Input keys 2 to 5 shown by arrows are arranged above respective sides of a screen 1 and function to move a picture element on the screen toward positions of keys 2 to 5, namely, in directions of arrows respectively. Thus, very intelligible functions of input keys 2 to 5 for the screen 1 are obtained. That is, the screen 1 and input keys 2 to 5 are surveyed in the same field to prevent unexpected operation and error.</p> |
