Patent ID: 7853404
Filing Date: 2010-12-14
Classification: G01C,G08G

Abstract:
1. A navigation system comprising: a base including a navigation unit, a first processor, and a first memory to store a map database, wherein the navigation unit includes one or more navigation sensors; and a portable unit including a second processor, a second memory, a position determining unit, and a display wherein said portable unit is configured to determine and forward position data to said base when said portable unit is communicatively coupled to said base, the position data comprising information indicating a real-time location of the portable unit; wherein said base is configured to receive said position data from said portable unit, generate processed data via the first processor, and forward said processed data to said display when said base and said portable unit are communicatively coupled; and wherein said processed data is to be generated by the base using (i) said position data, (ii) data from said map database, and (iii) data from the one or more navigation sensors.