Vehicle navigation apparatus and method with traveling direction indication at guidance intersection
First Claim
1. A vehicle navigation apparatus comprising:
- a display device;
a vehicle position detector;
a map-data storage section configured for storing therein map data; and
a controller configured for searching for a guidance route from a starting point to a destination based on the map data read from the map-data storage section, and for displaying on the display device a mark indicative of a traveling direction to be taken at a next intersection on the guidance route where the vehicle is to make a turn such that the vehicle is directed along the guidance route,wherein, when the vehicle reaches a predetermined distance from the intersection at which the vehicle is to make the turn, said controller determines whether or not a non-guidance intersection exists on the guidance route between the vehicle position and said intersection, and if said non-guidance intersection exists, the controller displays said mark in a first display form, whereas if said non-guidance intersection does not exist on the guidance route between the vehicle position and the intersection at which the vehicle is to make the turn, the controller displays the same mark in a second display form different than the first display form;
and wherein if said non-guidance intersection exists on the guidance route between the vehicle position and said intersection when the vehicle reaches the predetermined distance from said intersection, so that the controller displays said mark in the first display form, when the vehicle passes said non-guidance intersection on the guidance route the controller changes the display of said mark from the first display form to the second display form.
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Accused Products
Abstract
A vehicle navigation apparatus is provided which can reliably guide a vehicle along a guidance route when the vehicle approaches an intersection of interest at which it is to make a turn even if another intersection exists between a vehicle position and the intersection of interest. A controller determines whether or not another intersection exists between the vehicle position and the next guidance intersection (an intersection at which the vehicle is to make a turn) when the vehicle reaches a predetermined distance from the guidance intersection. If another intersection is determined to exist, an intersection guidance map with an arrow indicative of the guidance route colored in a predetermined color is displayed on a display device. In one embodiment, if another intersection does not exist between the vehicle and the guidance intersection, the color of the arrow displayed is changed to a different color.
69 Citations
21 Claims
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1. A vehicle navigation apparatus comprising:
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a display device; a vehicle position detector; a map-data storage section configured for storing therein map data; and a controller configured for searching for a guidance route from a starting point to a destination based on the map data read from the map-data storage section, and for displaying on the display device a mark indicative of a traveling direction to be taken at a next intersection on the guidance route where the vehicle is to make a turn such that the vehicle is directed along the guidance route, wherein, when the vehicle reaches a predetermined distance from the intersection at which the vehicle is to make the turn, said controller determines whether or not a non-guidance intersection exists on the guidance route between the vehicle position and said intersection, and if said non-guidance intersection exists, the controller displays said mark in a first display form, whereas if said non-guidance intersection does not exist on the guidance route between the vehicle position and the intersection at which the vehicle is to make the turn, the controller displays the same mark in a second display form different than the first display form; and wherein if said non-guidance intersection exists on the guidance route between the vehicle position and said intersection when the vehicle reaches the predetermined distance from said intersection, so that the controller displays said mark in the first display form, when the vehicle passes said non-guidance intersection on the guidance route the controller changes the display of said mark from the first display form to the second display form. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vehicle navigation apparatus comprising:
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a display device; a vehicle position detector; a map-data storage section configured for storing therein map data; and a controller configured for searching for a guidance route from a starting point to a destination based on the map data read from the map-data storage section, and for displaying on the display device an arrow indicative of a traveling direction to be taken at a next intersection on the guidance route where the vehicle is to make a turn such that the vehicle is directed along the guidance route, wherein, when the vehicle reaches a predetermined distance from the intersection at which the vehicle is to make the turn, said controller determines whether or not a non-guidance intersection exists on the guidance route between the vehicle position and said intersection, and if said non-guidance intersection exists, the controller displays said arrow in a first display form, whereas if said non-guidance intersection does not exist on the guidance route between the vehicle position and the intersection at which the vehicle is to make the turn, the controller displays the same arrow in a second display form different than the first display form; and wherein if said non-guidance intersection exists on the guidance route between the vehicle position and said intersection when the vehicle reaches the predetermined distance from said intersection, so that the controller displays said arrow in the first display form, when the vehicle passes said non-guidance intersection on the guidance route the controller changes the display of said arrow from the first display form to the second display form. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of providing guidance to a user of a vehicle navigation apparatus regarding an intersection on a guidance route at which the vehicle is to make a turn, comprising:
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storing a guidance route from a starting point to a destination; detecting a present position of a vehicle; when the vehicle reaches a predetermined distance from a next intersection on the guidance route at which the vehicle is to make a turn, determining whether or not a non-guidance intersection exists on the guidance route between the vehicle position and said intersection; if said non-guidance intersection exists, displaying an indication of the traveling direction to be taken at said intersection in a first display form; and if said non-guidance intersection does not exist, displaying the same indication of the traveling direction in a second display form different than the first display form; wherein, if said non-guidance intersection exists on the guidance route between the vehicle position and said intersection when the vehicle reaches the predetermined distance from said intersection, so that said indication is displayed in the first display form, when the vehicle passes said non-guidance intersection on the guidance route the display of said indication is changed from the first display form to the second display form.
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Specification