Method and apparatus for determining a route on a digitized road

Details Method and apparatus for determining a route on a digitized road Method and apparatus for determining a route on a digitized road

1997-05-22

2000-08-29

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

701201, G06F 1700

Patent

active

061121541

ABSTRACT:
A navigation system utilizes a digitized road network stored in a non-volatile memory and determines therefrom a travel route from a starting point to a destination point. A partial route is calculated from the starting point to an intermediate destination point and maneuvers for this partial route are generated and output to the user in order to guide the user even before the complete route to the destination point has been fully calculated. When a complete route from the starting point to the destination point has been calculated, the calculated complete route is overlapped with the partial route to define an intersection point between the two routes. The proposed maneuvers for that complete route are then output beginning from the intersection point.

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patent: 5412573 (1995-05-01), Barnea et al.
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patent: 5910177 (1999-06-01), Zuber
patent: 5926118 (1999-07-01), Hayashida et al.
Japanese Patent Abstract No. 09014985 (Kenichiro), dated Jan. 17, 1997.

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