NAVIGATION DEVICE
1 Assignment
0 Petitions
Accused Products
Abstract
A navigation device includes a route searching unit for searching for a route leading to an arbitrary point on the basis of map data acquired by a map data acquiring unit, an HOV lane determining unit for determining whether or not an HOV lane is included in the route which the route searching unit has searched for, a predicted arrival time calculating unit for, when the HOV lane determining unit determines that an HOV lane is included in the route, calculating a predicted arrival time required to arrive at the arbitrary point by way of the route which is shorter than a time required to arrive at the arbitrary point by way of a route in which no HOV lane is included, and a display processing unit for displaying the predicted arrival time calculated by the predicted arrival time calculating unit.
9 Citations
21 Claims
-
1-12. -12. (canceled)
-
13. A navigation device comprising:
-
an input unit for setting a destination; a current position detecting unit for detecting a current position of a vehicle; a map data acquiring unit for acquiring map data including road data in which an HOV lane and a normal lane are shown by a link; and a route searching unit for searching for a route leading from said current position to destination by using said map data, wherein said route searching unit searches for a route leading from said current position to said destination and not using any HOV lane, and, after that, when said route includes a highway, makes a re-search only in the highway on said route on a basis of usable or unusable of an HOV lane.
-
-
14. A navigation device comprising:
-
an input unit for setting a destination; a current position detecting unit for detecting a current position of a vehicle; a map data acquiring unit for acquiring map data including road data in which an HOV lane and a normal lane are shown by a link; and a route searching unit for searching for a route leading from said current position to said destination by using said map data, wherein when a highway exists in the route leading from said current position to said destination, said route searching unit searches for both a route leading from said current position to a highway entrance which is nearest to said current position, and a route leading from a highway exit which is nearest to said destination to said destination, and, after that, searches for a route between said highway entrance and said highway exit on a basis of usable or unusable of an HOV lane.
-
-
15. A navigation device comprising:
-
an input unit for setting a destination; a current position detecting unit for detecting a current position of a vehicle; a map data acquiring unit for acquiring map data including road data in which an HOV lane and a normal lane are shown by a link; a search mode determining unit for determining a search mode at a time of performing a route search; and a route searching unit leading from said current position to said destination by using said map data according to the search mode determined by said search mode determining unit. - View Dependent Claims (16, 17, 18)
-
-
19. A navigation device comprising:
-
an input unit for setting a destination; a current position detecting unit for detecting a current position of a vehicle; a map data acquiring unit for acquiring map data including road data in which an HOV lane and a normal lane are shown by a link; an HOV lane entrance/exit extracting unit for extracting entrances and exits of an HOV lane; a traffic state determining unit for determining a traffic state on a basis of traffic information received by a traffic information receiver; and a route searching unit for searching for a route leading from said current position to said destination by using said map data, wherein said route searching unit selects an entrance and an exit of the HOV lane from the entrances and the exits of the HOV lane extracted by said HOV lane entrance/exit extracting unit according to the traffic state determined by said traffic state determining unit, and searching for a route which uses said selected entrance and said selected exit of the HOV lane. - View Dependent Claims (20, 21)
-
Specification