A map evaluation system is equipped with a car navigation device and a map evaluation device. The car navigation system generates difference data indicating a location where a difference is present between a vehicle position path and a road location obtained from a map database. The car navigation device...http://www.google.fr/patents/US7024307?utm_source=gb-gplus-shareBrevet US7024307 - Map evaluation system, collation device, and map evaluation device
Map evaluation system, collation device, and map evaluation device
