Patent ID: 8200431

Claim:
A navigation system capable of updating map data comprising: a plurality of navigation devices, each of which comprising: a global positioning system unit for generating a plurality of position data; a map data unit for providing at least one electronic map corresponding to the plurality of position data; a micro-processing unit, coupled to the global positioning system unit and the map data unit, for generating at least one path data according to the plurality of position data and the electronic map; a data feedback unit, coupled to the micro-processing unit, for storing the path data; and a first signal transmitting unit, coupled to the data feedback unit, for outputting the path data; and a server comprising: a second signal transmitting unit for receiving a plurality of path data transmitted from a plurality of first signal transmitting units of the plurality of navigation devices; a calculating unit, coupled to the second signal transmitting unit, for calculating an optimum path data according to the plurality of path data received by the second signal transmitting unit; and an updating unit, coupled to the calculating unit, for updating the map data unit according to the optimum path data.