Vehicular navigation device

Details Vehicular navigation device Vehicular navigation device

2006-10-17

2006-10-17

Camby, Richard M. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

C701S207000, C701S208000, C701S209000, C340S995230

Reexamination Certificate

active

07124025

ABSTRACT:
A vehicular navigation device includes a control circuit to designate a route to a destination from a start point to be defined. When a route designation instruction is inputted, it is determined whether an intersection being a target for route designation is present close to the current position. When the intersection being the target is present, it is determined whether a lane the vehicle is traveling is a traffic directed lane that includes a traffic direction. When the traveled lane is determined to be the traffic directed lane, a start point is defined as an exit of the intersection reached by following the traffic direction. When the traveled lane is determined to be not the traffic directed lane or when the intersection for the target is determined to be not present, the start point is defined as the current position.

REFERENCES:
patent: 6343869 (2002-02-01), Kobayashi
patent: 6366851 (2002-04-01), Chojnacki et al.
patent: 6370475 (2002-04-01), Breed et al.
patent: 6466867 (2002-10-01), Sakashita
patent: 6804604 (2004-10-01), Yamazaki
patent: A-8-110236 (1996-04-01), None
patent: A-11-325933 (1999-11-01), None

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