公开(公告)号：US06671619B2

公开(公告)日：2003-12-30

申请号：US09919720

申请日：2001-08-01

申请人： Manabu Kusano ,  Katsuya Saitoh

发明人： Manabu Kusano ,  Katsuya Saitoh

IPC分类号： G01C2130

CPC分类号： G01C21/3685 ,  G01C21/367

摘要： A navigation device is provided with detailed map information of service areas and parking areas on freeways, and in the event that the vehicle to which the navigation device is mounted enters a service area for example while driving along the freeway which is a guided route, the navigation device reads out detailed map information of the service area which the vehicle has entered and displays a detailed map of this area such that the driver can readily understand the location of parking space, restaurants, stores, etc., and also displays the current position of the vehicle. Thus, in the event that the vehicle enters a service area or parking area while on a guided route, where what is within the area and where the vehicle is can be displayed in a readily understood manner, by the vehicle entering the area.