The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 2010
Filed:
Apr. 03, 2002
Applicant:
David W. Allen, Davisburg, MI (US);
Inventor:
David W. Allen, Davisburg, MI (US);
Assignee:
Mitac International Corporation, Kuei San Hsiang, Taoyuan, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/26 (2006.01);
U.S. Cl.
CPC ...
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.