| 摘要 |
PROBLEM TO BE SOLVED: To provide an easily-handleable position display device capable of displaying position information of a plurality of persons concerned on the same map. SOLUTION: When displaying partner's position information acquired by radio communication together with own position information on a map, map scale reduction is changed or the map is scrolled based on both position information so that either position does not deviate from the map. Rotation of the map is performed based on own traveling direction. A radio communication form or a position information expression is matched mutually. A simplified display wherein display on the map of the partner's position is omitted is also possible. When the radio communication is impossible, operation display on partner's position display is not output. Requirement of position display from the partner is reported. COPYRIGHT: (C)2008,JPO&INPIT |
