| 摘要 |
PROBLEM TO BE SOLVED: To prevent the user of a navigation device from wasting time after the user arrives at a destination by adding the functions existing at the destination and a means for indicting the existing locations of the functions to the map information displayed on a navigation device. SOLUTION: A navigation device 3 is constituted of a display device 1, carrying-in port displaying switch 4, elevator position displaying switch 5, and mailbox position displaying switch 6. Since the display device 1 displays the functions existing at a destination together with the locations where the functions exist and effective time zone information, the user of the device 3 is prevented from wasting time after the user arrives at the destination. |
