Vehicle-navigation device
First Claim
1. A vehicle-navigation device for navigating a vehicle by displaying a map on a screen to inform a driver of a route to be selected, the vehicle-navigation device comprising:
- starting point inputting means for inputting a starting point;
destination inputting means for inputting a destination point;
route searching means for setting a search beginning point and a search ending point on the basis of the starting point and the destination point, and searching a route between the search beginning point and the search ending point;
display means for displaying the map;
route deviation judging means for judging that a present position of the vehicle deviates from the searched route;
scale changing means for changing a scale of the map so as to display the present position of the vehicle and a predetermined point on a same screen on the basis of the judgment of the route deviation judging means; and
display indicating means for providing an indication of displaying the map at the changed scale in a display section of the screen.
1 Assignment
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Accused Products
Abstract
A vehicle-navigation device for displaying a map at such a scale as to display a present position of a vehicle and a predetermined point when the vehicle does not travel on a preset route, whereby information is given to a driver. When the vehicle is led from a starting point to a route search beginning point, the scale of the map is set by a scale change section 26a so as to display the present position (the starting point) and the search beginning point on one screen. Furthermore, when the vehicle deviates from the route for a certain reason, the present position and the nearest point on the route are displayed on the same screen. In addition, when the vehicle is traveling between a search ending point and a destination point, these two points are displayed on the same screen.
59 Citations
16 Claims
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1. A vehicle-navigation device for navigating a vehicle by displaying a map on a screen to inform a driver of a route to be selected, the vehicle-navigation device comprising:
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starting point inputting means for inputting a starting point; destination inputting means for inputting a destination point; route searching means for setting a search beginning point and a search ending point on the basis of the starting point and the destination point, and searching a route between the search beginning point and the search ending point; display means for displaying the map; route deviation judging means for judging that a present position of the vehicle deviates from the searched route; scale changing means for changing a scale of the map so as to display the present position of the vehicle and a predetermined point on a same screen on the basis of the judgment of the route deviation judging means; and display indicating means for providing an indication of displaying the map at the changed scale in a display section of the screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A vehicle-navigation method for leading a vehicle by displaying a map on a screen to inform a driver of a route to be selected which comprises:
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inputting a starting point; inputting a destination point; setting a search beginning point and a search ending point on the basis of the starting point and the destination point, and searching a route between the search beginning point and the search ending point; displaying the map on the screen; judging that a present position of the vehicle deviates from the search route; changing a scale of the map when it is judged that the vehicle deviates from the route so as to display the present position of the vehicle and a predetermined point on the route on one screen and providing an indication of displaying the map at the changed scale on the screen. - View Dependent Claims (14, 15, 16)
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Specification