Patent ReferencesNavigation system to be mounted on vehicles Traffic information system Vehicular navigation system Patent #: 5757289 InventorAssigneeApplicationNo. 141171 filed on 08/26/1998US Classes:701/209, Including route searching or determining device73/178R, NAVIGATION342/463, Having plural transmitters or receivers701/24, On-board computer interact with a host computer701/200NAVIGATIONExaminersPrimary: Beaulieu, YonelAttorney, Agent or FirmForeign Patent References
International ClassG01C 021/00Foreign Application Priority Data1997-08-27 DEAbstractThe vehicle routing and guidance system includes a vehicle-based navigation system (35) located in a vehicle, which includes an input device (38) for entry of one or more destinations (B) to which the vehicle is to travel and a self-locating device for determining location of the vehicle, a central server 12 located outside of the vehicle for making navigational information available to the navigation system, for determining a route (16) to the destination or destinations (B) provided to the navigation system and for dividing the route (16) piecewise into route sections (34), and transmitter and receiver devices for at least temporarily establishing communication between the central server (12) and the navigation system (35) to transmit the route sections (34) separately to the navigation system (35) so that the route (16) is transmitted in a piecewise manner to the navigation system (35).Field of SearchAutomatic route guidance vehicleOn-board computer interact with a host computer Storage or planning of route information Modification or correction of route information NAVIGATION Determination of travel data based on the start point and destination point Route pre-planning Employing position determining equipment For use in a map data base system Including route searching or determining device Route correction, modification, or verification VEHICLE POSITION INDICATION With map display NAVIGATION Land vehicle location (e.g., bus, police car Having plural transmitters or receivers With storage device (i.e., map or database) | |