NAVIGATION SYSTEM, INFORMATION CENTER AND ROUTE SEARCH METHOD

PROBLEM TO BE SOLVED: To provide a navigation system capable of downloading information smoothly, an information center, and a route planning method. SOLUTION: The navigation system 3 acquires information of communication effective area about a plurality of radio communication media at the car, sear...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAKAZAWA TAKUJI, SATO NOBUHIKO, HIRAYAMA ICHIRO, INUKAI TAKAMORI
Format: Patent
Sprache:eng
Schlagworte:
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