Car navigation system

Details Car navigation system Car navigation system

2005-01-11

2005-01-11

Marc-Coleman, Marthe Y. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

C701S207000, C340S995100

Reexamination Certificate

active

06842694

ABSTRACT:
A car navigation system searches for a route from a start point to a destination, and provides guidance along the route. The car navigation system includes a trifurcate guidance section that makes a decision of considering two consecutive bifurcate guidance nodes among guidance nodes stored in a guidance node storing section as a single trifurcate guidance node, and makes a decision of a guidance direction to be provided as trifurcate guidance. The trifurcate guidance section provides the trifurcate guidance at the single trifurcate guidance node via a guidance section. The car navigation system can provide the guidance indicating a driver the way to proceed plainly, when two successive bifurcate intersections are present in a short distance.

REFERENCES:
patent: 6415222 (2002-07-01), Sato et al.
patent: 20010056326 (2001-12-01), Kimura
patent: 11-051674 (1992-02-01), None

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