Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
David W. Allen0
Date of Patent
December 14, 2010
0Patent Application Number
101158760
Date Filed
April 3, 2002
0Patent Primary Examiner
Patent abstract
A vehicle navigation system includes a base and a handheld device which is portable relative to the base and dockable to the base. The handheld device includes a GPS receiver, display and user input devices and provides limited navigation capability when detached from the base. The base includes additional databases and navigation sensors which provide a full function navigation system when the handheld device is docked to the base station, including turn-by-turn navigation.
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