Land vehicle navigation apparatus with local route guidance sele

Details Land vehicle navigation apparatus with local route guidance sele Land vehicle navigation apparatus with local route guidance sele

1997-08-29

1999-11-02

Swarthout, Brent A.

Communications: electrical

Vehicle position indication

Map display

340988, 701208, 701209, G08G 1123

Patent

active

059778857

ABSTRACT:
Land vehicle navigation apparatus includes a present vehicle position detector, a location setter for setting a pass-through point and a destination, and a route search unit for determination of a route to the destination through the pass-through point. A judgment area setter is provided for setting, with respect to the pass-through point, a judgment area that enables the user to select whether route guidance to the pass-through point is necessary. A controller provides control of the overall system while permitting the user's selection of whether the guidance to the pass-through point is necessary when the present vehicle position is within the judgment area, thereby facilitating guidance changeover to the route segment next following the pass-through point, without need to actually enter the pass-through judgment area near the pass-through point. Also disclosed is a storage medium operatively associated with the navigation apparatus, having encoded thereon one or more programs as required for such route guidance control procedures.

REFERENCES:
patent: 4774672 (1988-09-01), Tsunoda et al.
patent: 4879658 (1989-11-01), Takashima et al.
patent: 5602740 (1997-02-01), Nishiyama
patent: 5652706 (1997-07-01), Morimoto et al.
patent: 5754430 (1998-05-01), Sawada
patent: 5793631 (1998-08-01), Ito et al.

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