Patent ID: 7860645
Filing Date: 2010-12-28
Classification: G01C

Abstract:
1. A telematics service providing system for providing path information from a departure point to a destination to a client terminal through a radio communication network, comprising: a map database for storing total map information; an optimized path generator for generating a path from the departure point to the destination; a guidance information generator for generating guidance information for each guidance point where a turn to another direction that is different from the client's current progress direction is needed for the generated path; a guidance point vicinity map generator for generating a guidance point vicinity map that is generated by clipping a vicinity map covering a predetermined area with reference to the guidance point from the total map stored in the map database according to the generated guidance information; and a telematics service provider for providing path information including the generated guidance point vicinity map to the client terminal and excluding a superimposed guidance point vicinity map provided to the client terminal, wherein the guidance point vicinity map generator is configured to generate the guidance point vicinity map for the guidance point by clipping a vicinity map including a first area covering a first circle area having a predetermined radius from the guidance point, a second area covering a second circle area having the predetermined radius from a first vertex that is distant with a predetermined distance from the guidance point in a forward direction and a third area covering a third circle area having the predetermined radius from a second vertex that is distant with a predetermined distance from the guidance point in a backward direction.