Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment
Reexamination Certificate
2001-08-03
2003-08-05
Arthur, Gertrude (Department: 3661)
Data processing: vehicles, navigation, and relative location
Navigation
Employing position determining equipment
C701S201000, C701S207000, C701S214000, C340S988000, C342S357490, C342S357490
Reexamination Certificate
active
06604047
ABSTRACT:
BACKGROUND OF INVENTION
Various systems, including but not limited to the Magellan 750 (“NeverLost (TM)”) device automatically track the user's whereabouts and instructs the user on the best way to get from point A to point B. For example, systems such as this may find the user's current position using satellite positioning systems such as the GPS constellation array. The user may enter a desired location. The program includes map data which includes a time that it will take, on average, to traverse a given stretch of roadway. This data may be acquired by simply dividing the speed limit by the length of the roadway. The system carries out a program to determine a most efficient way for the user to get to his desired location.
This system may operate admirably, and almost always results in the user getting to their desired location. However, the selection of routes does not take into account the real situation. For example, the user who knows an area will often select a better route than the computer will select.
SUMMARY OF INVENTION
The present application teaches an improvement to existing navigator systems which enables improvements and new techniques in selection of routes.
In one aspect, the present application teaches use of statistical data in selecting the proper route.
In another aspect, the system may use real-time information.
An interface with the information stored in a PDA is disclosed.
Another aspect teaches a way in which the route may be calculated to allow the user to start in the proper direction.
Yet another aspect teaches a way of using the system to determine a location in for the user to obtain some desired product or service.
REFERENCES:
patent: 5790974 (1998-08-01), Tognazzini
patent: 5909440 (1999-06-01), Ferguson et al.
patent: 6199009 (2001-03-01), Meis et al.
patent: 6208934 (2001-03-01), Bechtolsheim et al.
patent: 2 298 539 (1996-04-01), None
patent: 410300485 (1998-11-01), None
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