초록 ▼

A navigation system permits the user to designate certain roads or areas to avoid when planning a route. The navigation system generally includes a database of road segments and a cost associated with the road segments, such as estimated time of travel across that road segment and estimated length o

A navigation system permits the user to designate certain roads or areas to avoid when planning a route. The navigation system generally includes a database of road segments and a cost associated with the road segments, such as estimated time of travel across that road segment and estimated length of travel across that road segment. The navigation system determines a route from a selected beginning point to a desired destination by evaluating the cost of the road segments to be traveled in several potential routes and recommends the potential route having the lowest total cost. The user can selectively modify the cost of selected road segments to indicate a preference or avoidance of such roads. By increasing the cost of a road segment, the navigation system is less likely to recommend a potential route which includes that road segment. Similarly, by decreasing the cost of a selected road segment, the navigation system is more likely to recommend a potential route which includes that road segment.

대표청구항 ▼

[ What is claimed is:] [1.] A navigation system comprising:a database of road segments to be travelled by a user, said database including a cost associated with each said road segment;a system for selecting a beginning point relative to said database of roads;a user input device for selecting a desi

[ What is claimed is:] [1.] A navigation system comprising:a database of road segments to be travelled by a user, said database including a cost associated with each said road segment;a system for selecting a beginning point relative to said database of roads;a user input device for selecting a desired destination relative to said database of roads, said user input device manually selecting at least one of said road segments and adjusting said cost of said at least one selected road segment; anda system for determining a route from said database of roads between said beginning point and said desired destination based upon said adjusted cost of said selected at least one road segment.