Car navigation system
First Claim
1. A car navigation system comprising:
- a map generator configured to display at least one of two-dimensional maps, three-dimensional maps and bird'"'"'s-eye-view maps, from mapping information provided from a database;
a position detector adapted to detect a position of a vehicle;
a search unit adapted to search for a route between the detected vehicle position and a specified target position, or a specified departure position and the specified target position, under set conditions;
a map summarizing unit adapted to generate a summary road map having a reduced amount of information and having deformed roads more orthogonalized and/or linearized than the at least one of two-dimensional maps, three-dimensional maps and bird'"'"'s-eye-view maps, and including a simplified route between the detected vehicle position and the specified target position, or the specified departure position and the specified target position, with highlighted lines, by applying a summarizing operation including at least one of an orthogonalizing and linearizing operation over a main road including a running route;
a display unit adapted to display the summary road map of the simplified route; and
a communication unit for receiving traffic information, and wherein the display unit displays the traffic information received by the communication unit on the summary road map with respect to a corresponding route displayed thereon.
1 Assignment
0 Petitions
Accused Products
Abstract
A car navigation system by which a user can easily grasp a drop-in target in the course of a route. In a summary road map displayed in a two- or one-window display representation, contents of a two-dimensional road map is properly selected and simplified, roads are made linear, roads connected to an intersection are made orthogonal so that the user can easily see it, the position of a vehicle is expressed by a mark, and even the running route is expressed with a predetermined color or the like. Accordingly, the system offers the user such a display form as able to easily refer to. When the user specifies a target at which the user wants to drop in, the drop-in target is displayed at a corresponding position on the summary road map in the form of a land mark.
64 Citations
15 Claims
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1. A car navigation system comprising:
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a map generator configured to display at least one of two-dimensional maps, three-dimensional maps and bird'"'"'s-eye-view maps, from mapping information provided from a database; a position detector adapted to detect a position of a vehicle; a search unit adapted to search for a route between the detected vehicle position and a specified target position, or a specified departure position and the specified target position, under set conditions; a map summarizing unit adapted to generate a summary road map having a reduced amount of information and having deformed roads more orthogonalized and/or linearized than the at least one of two-dimensional maps, three-dimensional maps and bird'"'"'s-eye-view maps, and including a simplified route between the detected vehicle position and the specified target position, or the specified departure position and the specified target position, with highlighted lines, by applying a summarizing operation including at least one of an orthogonalizing and linearizing operation over a main road including a running route; a display unit adapted to display the summary road map of the simplified route; and a communication unit for receiving traffic information, and wherein the display unit displays the traffic information received by the communication unit on the summary road map with respect to a corresponding route displayed thereon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A car navigation system comprising:
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a map generator configured to display at least one of two-dimensional maps, three-dimensional maps and bird'"'"'s-eye-view maps, from mapping information provided from a database; a position detector adapted to detect a current position of a vehicle; an input unit adapted to input a target position; a search unit adapted to search for a running route on the basis of the detected current position and the inputted target position; a map summarizing unit adapted to generate a summary road map having a reduced amount of information and having deformed roads more orthogonalized and/or linearized than the at least one of two-dimensional maps, three-dimensional maps and bird'"'"'s-eye-view maps, by applying a summarizing operation including at least one of an orthogonalizing and linearizing operation over a main road including a running route, where the summary road map shows a path from the current vehicle position to a next turning corner on the searched running route; and a display unit adapted to display the summary road map, wherein, when the current vehicle position arrives at a position within a predetermined range from the next turning corner, the display unit automatically displays the summary road map from the current vehicle position to the next turning corner with a mark of the current vehicle position, and wherein the predetermined range is broader than a display range of a magnified road map displayed for the next turning corner. - View Dependent Claims (13, 14, 15)
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Specification