Navigation apparatuses, methods, and programs

Details Navigation apparatuses, methods, and programs Navigation apparatuses, methods, and programs

2008-12-16

2009-11-10

Jeanglaud, Gertrude Arthur (Department: 3661)

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

C701S200000, C701S202000, C701S209000, C701S025000, C701S066000, C340S995130, C340S995230

Reexamination Certificate

active

07617046

ABSTRACT:
Navigation apparatuses, methods, and programs store path information for a path each time the path is traveled, the path being a segment of the guidance route from a branch point to a junction. The apparatuses, methods, and programs store detour route information for the detour route each time the detour route is traveled. The apparatuses, methods, and programs receive current traffic conditions from an external system and read out, when arriving at the branch point, path information having a same or similar stored traffic condition as a current path traffic condition and detour route information having a same or similar stored traffic condition as a current detour route traffic condition. The apparatuses, methods, and programs determine a difference between a required time for traveling along the path and a required time for traveling along the detour route and output guidance information based on the determined difference.

REFERENCES:
patent: 5406490 (1995-04-01), Braegas
patent: 7483788 (2009-01-01), Tomita et al.
patent: 2001/0004725 (2001-06-01), Yagyu
patent: 1 387 145 (2004-02-01), None
patent: 2 772 498 (1999-06-01), None
patent: A-09-178501 (1997-07-01), None

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