| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent forward gaze time from being reduced due to generation of hierarchy stray condition. <P>SOLUTION: An input operation panel 5 has three oscillation stimulus indication surfaces 14a-14c which indicate oscillation stimulus to a driver at an upper end portion. A central control device generates the oscillation stimulus in various patterns at the oscillation stimulus indication surfaces 14a-14c depending on the currently operating hierarchy. Therefore, the driver identifies the pattern of the oscillation stimulus by touching the oscillation stimulus indication surfaces 14a-14c, thus recognizing the currently operating hierarchy without looking at a display. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
