| 摘要 |
<p>PURPOSE: To provide a directivity actuator for accepting the extremely fine movement of a pointing device. CONSTITUTION: The complete navigation of an electronic medium 2 by the extremely fine movement of a pointing device can be attained by applying a directivity actuator 32 having a next page actuator, previous page actuator, and medium movement actuator. Thus, an error accompanied with rough movement can be removed, and an available display area in a window frame 3 can be increased. Also, the complete navigation including movement in horizontal, vertical, and oblique directions can be attained in a state in which the speed is changed.</p> |
