Navigation system and method and storage medium in which navigation programs are stored
First Claim
1. A navigation system that searches a route according to an input of a point such as a destination and performs route guidance along the searched route, the navigation system comprising:
- an information memory device that stores lane information data of intersections;
a display that displays the lane information; and
a display controller that controls the display of lane information of intersections on the basis of lane information data stored in the information memory device, wherein the display controller determines whether passing intersections exist within a predetermined distance before a guidance intersection, and controls the display of lane information of the guidance intersection and the passing intersections if the passing intersections exist.
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Abstract
The invention provides a driver with notice of a certain traffic lane change on a road having many traffic lanes even if passing intersections exists within a predetermined distance before a guide intersection. Specifically, the invention concerns a vehicle navigation system for performing a route search on the basis of the input of a point, such as a destination and further performing route guidance along the searched route, which includes an information memory device for storing traffic lane information at intersections, a display for displaying the traffic lane information and a display controller for displaying traffic lane information at intersections on the display on the basis of the traffic lane data stored on the display. The display controller determines whether a passing intersection exists within a predetermined distance before the guidance intersection and controls so as to display lane information of the passing intersections and guidance intersection when the passing intersections exists.
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Citations
21 Claims
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1. A navigation system that searches a route according to an input of a point such as a destination and performs route guidance along the searched route, the navigation system comprising:
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an information memory device that stores lane information data of intersections;
a display that displays the lane information; and
a display controller that controls the display of lane information of intersections on the basis of lane information data stored in the information memory device, wherein the display controller determines whether passing intersections exist within a predetermined distance before a guidance intersection, and controls the display of lane information of the guidance intersection and the passing intersections if the passing intersections exist. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A storage medium for storing programs of a navigation system that performs route guidance according to an input of a point, such as a destination, comprising:
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a program for storing lane information data of intersections in an information memory device;
a program for displaying the lane information; and
a program for controlling the display of lane information of intersections on the basis of lane information data stored in the information memory device, wherein the program for controlling determines whether passing intersections exist within a predetermined distance before a guidance intersection, and controls the display of lane information of the guidance intersection and the passing intersections if the passing intersections exist. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for performing route guidance for a navigation system that according to an input of a point, such as a destination, comprising:
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storing lane information data of intersections in an information memory device;
displaying the lane information; and
controlling the display of lane information of intersections on the basis of lane information data stored in the information memory device, wherein the controlling step determines whether passing intersections exist within a predetermined distance before a guidance intersection, and controls the display of lane information of the guidance intersection and the passing intersections if the passing intersections exist. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification