The present invention provides a system and mobile device for providing geographic information to a user. The system includes a mobile device that is wirelessly connected to a geographic database. The mobile device includes a plurality of sensors for determining a first location and a first direction....http://www.google.fr/patents/US8023962?utm_source=gb-gplus-shareBrevet US8023962 - Mobile device and geographic information system background and summary of the related art
Mobile device and geographic information system background and summary of ...
