NAVIGATION SYSTEM
First Claim
1. A navigation system comprising:
- a map data acquiring unit for acquiring map data defining two types of lanes, shifting between which is regulated, in a single link;
a driving link deciding unit for identifying a link of a driving lane of a vehicle according to the map data acquired by the map data acquiring unit and according to position information about the vehicle;
a freeway infrastructure acquiring unit for acquiring, from node information of the map data freeway infrastructure data indicating a freeway infrastructure which is accessible by the vehicle from the driving lane including the link identified by the driving link deciding unit;
a freeway infrastructure storage unit for storing the freeway infrastructure data acquired by the freeway infrastructure acquiring unit; and
a freeway infrastructure display unit for displaying the freeway infrastructure data stored in the freeway infrastructure storage unit.
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Accused Products
Abstract
A navigation system includes a map data acquiring unit for acquiring map data defining two types of lanes, shifting between which is regulated, in a single link; a driving link deciding unit for identifying a link of a driving lane of a vehicle according to the map data acquired by the map data acquiring unit and according to position information about the vehicle; a freeway infrastructure acquiring unit for acquiring, from node information of the map data, freeway infrastructure data indicating a freeway infrastructure which is accessible by the vehicle from the driving lane including the link identified by the driving link deciding unit; a freeway infrastructure storage unit for storing the freeway infrastructure data acquired by the freeway infrastructure acquiring unit; and a freeway infrastructure display unit for displaying the freeway infrastructure data stored in the freeway infrastructure storage unit.
14 Citations
13 Claims
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1. A navigation system comprising:
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a map data acquiring unit for acquiring map data defining two types of lanes, shifting between which is regulated, in a single link; a driving link deciding unit for identifying a link of a driving lane of a vehicle according to the map data acquired by the map data acquiring unit and according to position information about the vehicle; a freeway infrastructure acquiring unit for acquiring, from node information of the map data freeway infrastructure data indicating a freeway infrastructure which is accessible by the vehicle from the driving lane including the link identified by the driving link deciding unit; a freeway infrastructure storage unit for storing the freeway infrastructure data acquired by the freeway infrastructure acquiring unit; and a freeway infrastructure display unit for displaying the freeway infrastructure data stored in the freeway infrastructure storage unit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A navigation system comprising:
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a map data acquiring unit for acquiring map data defining two types of lanes, shifting between which is regulated, in two links; a driving link deciding unit for identifying a link of a driving lane of a vehicle according to the map data acquired by the map data acquiring unit and according to position information about the vehicle; a freeway infrastructure acquiring unit for acquiring, from node information of the map data, freeway infrastructure data indicating a freeway infrastructure which is accessible by the vehicle from the driving lane including the link identified by the driving link deciding unit, and freeway infrastructure data indicating a freeway infrastructure accessible from the lane other than the driving lane of the vehicle; a freeway infrastructure storage unit for storing the freeway infrastructure data acquired by the freeway infrastructure acquiring unit; and a freeway infrastructure display unit for displaying the freeway infrastructure data stored in the freeway infrastructure storage unit. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification