Car navigation system
First Claim
1. A car navigation system for detecting a position of a vehicle and displaying a road map of an area for the detected vehicle position together with a mark indicative of the vehicle position and a route along which the vehicle is to run, said system comprising:
- means for displaying a summary road map corresponding to an area requested by a user, wherein the summary road map is displayed by properly selecting display contents of a two-dimensional map and simplifying a main road including the vehicle running route.
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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.
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Citations
12 Claims
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1. A car navigation system for detecting a position of a vehicle and displaying a road map of an area for the detected vehicle position together with a mark indicative of the vehicle position and a route along which the vehicle is to run, said system comprising:
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means for displaying a summary road map corresponding to an area requested by a user, wherein the summary road map is displayed by properly selecting display contents of a two-dimensional map and simplifying a main road including the vehicle running route. - View Dependent Claims (2, 11, 12)
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3. A car navigation system for detecting a position of a vehicle and displaying a two-dimensional road map of an area for the detected vehicle position together with a mark indicative of the vehicle position and a route along which the vehicle is to run, said system comprising:
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means for searching for a route between the detected vehicle position and a specified departure position or the vehicle position and a specified target position and along which the vehicle is to run under set conditions; and
means for displaying a summary road map in which the searched route is expressed by a broken line. - View Dependent Claims (4, 5, 6, 7, 8)
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9. A car navigation system comprising:
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means for acquiring a current position of a vehicle;
means for inputting a target position;
means for searching for a route along which the vehicle is to run on the basis of the acquired current vehicle position and the inputted target position;
means for displaying the searched running route; and
means for displaying a summary road map from the current vehicle position on the running route searched for based on the current position to a main intersection, wherein, when the current vehicle position arrives at a position within a predetermined range, the system displays the summary road map with the current vehicle position expressed as a departure position and the main intersection expressed as a target position. - View Dependent Claims (10)
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Specification