Navigation apparatus and intersection guidance method
First Claim
1. An intersection-guidance method using a navigation apparatus that displays a guidance route on a map and displays an enlarged view a branch intersection and a no-left-turn intersection of on the guidance route when a vehicle approaches the intersections, for indicating the direction in which the vehicle should travel at the intersections, the method comprising:
- monitoring the vehicle to determine whether or not the vehicle is close to a first point in a road where the vehicle should turn right at the branch intersection before the no-left-turn intersection for effectively entering and turning left at the no-left-turn intersection; and
continuously indicating the direction in which the vehicle should travel from the first point in the road to a second point in the guidance route beyond the no-left-turn intersection by an arrow in one enlarged view of the intersections when the vehicle approaches the first point in the road.
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Accused Products
Abstract
Monitoring is performed to determine whether or not the vehicle approaches a first point in a road where the vehicle turns right before a no-left-turn intersection for effectively entering and turning left at the no-left-turn intersection. When it is determined that the vehicle is close to the first point in the road, the direction in which the vehicle should travel from the first point in the road to a second point beyond the no-left-turn intersection is continuously indicated by an arrow in one enlarged view of the intersection.
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Citations
14 Claims
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1. An intersection-guidance method using a navigation apparatus that displays a guidance route on a map and displays an enlarged view a branch intersection and a no-left-turn intersection of on the guidance route when a vehicle approaches the intersections, for indicating the direction in which the vehicle should travel at the intersections, the method comprising:
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monitoring the vehicle to determine whether or not the vehicle is close to a first point in a road where the vehicle should turn right at the branch intersection before the no-left-turn intersection for effectively entering and turning left at the no-left-turn intersection; and
continuously indicating the direction in which the vehicle should travel from the first point in the road to a second point in the guidance route beyond the no-left-turn intersection by an arrow in one enlarged view of the intersections when the vehicle approaches the first point in the road. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A navigation apparatus that displays a guidance route on a map and that displays an enlarged view of a branch intersection and a no-left-turn intersection on the guidance route when a vehicle is close to the branch intersection, for indicating the direction in which the vehicle should travel at the no-left-turn intersection, comprising:
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a vehicle-position detection unit for detecting the position of the vehicle;
a monitor for monitoring the vehicle to determine whether or not the vehicle is close to a first point in a road where the vehicle should turn right at the branch intersection before the no-left-turn intersection for effectively entering and turning left at the no-left-turn intersection;
drawing means for drawing the enlarged view of the intersections for continuously indicating the direction in which the vehicle should travel from the first point in the road to a second point beyond the no-left-turn intersection when the vehicle is close to the first point in the road; and
a display for displaying the enlarged view of the intersections. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification