Patent ID: 6334087
Filing Date: 2001-12-25
Classification: G01C,G09B

Abstract:
A map information providing system for providing map information, said system comprising:a server and one or more movable terminals, wherein the map information is provided from said server to said one or more movable terminals;said server comprising:an information storage portion operable to store map related information including the map information;a route searching portion operable to perform a route search by referring to the map information based on a position information of which said server is notified by said one or more movable terminals;a route related information extracting portion operable to extract only information about areas surrounding a route obtained by a search performed by said route searching portion from the map related information stored in said information storage portion; anda communication portion operable to notify said one or more movable terminals of the route related information obtained by an extraction performed by said route related information extracting portion through telecommunications;wherein the map related information has latitude and longitude coordinates to point a location on the map, and wherein said route related information extracting portion is operable to calculate a linear distance between the latitude and longitude coordinates of each information item and a node constructing the route and extract an information item if the calculated distance is not more than a threshold.