Global positioning system`s ephemeris data updating method for e.g. smart phone, involves implementing downward checking of predetermined period by global positioning system ephemeris data server to update data in navigation device

摘要

The method involves utilizing a navigation device containing ephemeris data of a global positioning system for the ephemeris data, where a predetermined period is checked downward. A global positioning system ephemeris data server is searched by a network interface e.g. Bluetooth network interface, where the downward checking of the predetermined period is implemented by the ephemeris data server e.g. microprocessor, to update the global positioning system ephemeris data in the navigation device.