Method of providing return route for global positioning...

Details Method of providing return route for global positioning... Method of providing return route for global positioning...

2005-03-24

2009-06-30

Tran, Khoi (Department: 3664)

Data processing: vehicles, navigation, and relative location

Navigation

Determination of travel data based on the start point and...

C701S202000, C701S208000, C701S209000

Reexamination Certificate

active

07555382

ABSTRACT:
A method of providing a return route for a global positioning system (GPS) device is provided. When the starting point and the destination of the return route are exactly opposite to the original starting point and the destination, the GPS device plans and provides a reverse route without re-setting the starting point and the destination all over again, and therefore the time of obtaining a return route can be substantially reduced. The efficiency of the GPS device in planning routes can be effectively promoted.

REFERENCES:
patent: 2003/0050751 (2003-03-01), Fukushima et al.
patent: 2004/0102899 (2004-05-01), Kaji et al.
patent: 2004/0148096 (2004-07-01), Katou
patent: 2004/0220729 (2004-11-01), Park et al.
patent: 2008/0109153 (2008-05-01), Gueziec
patent: WO 03/040654 (2003-05-01), None

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