Patent ID: 7330789
Filing Date: 2008-02-12
Classification: G01S

Abstract:
1. A telematics system comprising: a Position Determination Entity (PDE) server for storing and managing AGPS (Advanced Global Positioning System) information including ephemeris information and compensation information of a satellite; a telematics terminal for receiving the AGPS information from the PDE server, determining present position information of a moving object using the AGPS information, and requesting a telematics service using the present position information; and a telematics server for receiving the AGPS information from the PDE server, transmitting the AGPS information to the telematics terminal, and providing the telematics terminal with the telematics service requested by the telematics terminal, using the present position information of the telematics terminal, wherein the PDE server includes a first GPS receiving section for receiving a GPS signal from a GPS satellite, a position calculating section for calculating a position of the PDE server using the GPS signal received in the first GPS receiving section, measuring the ephemeris information and the error information of the satellite, and calculating a position of the telematics terminal utilizing the ephemeris information and the error information of the satellite, and a telematics interface section for interfacing with the telematics server.