Electronic-positioning system for use with a mobile phone or similar, has an electronic map that updates each time the device is used so that a user always has an up-to-date map of the location in which he is using the system

摘要

Electronic-positioning system (1, 2) has an electronic map that is constantly updated. To update the system each time it is used a temporary network connection is made to a geographical database system (5) which updates the electronic map.