Carl E Shonk

US Patent:

7142979, Nov 28, 2006

Filed:

Jun 21, 2000

Appl. No.:

09/598538

Inventors:

Carl W. Shonk - Shepherd MI, US

Assignee:

Magellan DIS, Inc. - Rochester Hills MI

International Classification:

G01S 13/66
G08G 1/01

US Classification:

701208, 701209, 340990

Abstract:

A navigation system that uses a method for transmitting the location of a vehicle to a location remote from the vehicle is provided. The method includes determining a location of the vehicle relative to a road network defined as a first location, and determining a change in the location of the vehicle relative to the road network defined as a second location. The first location may be a first street while the second location is a second street different that the first street. The navigation system then communicates the location of the vehicle to the remote location when vehicle reaches the second location. In another aspect of the present invention, the method includes determining a location of the vehicle relative to a road network defined as a first location. A new location of the vehicle is determined relative to the road network and is defined as a second location. The first location of the vehicle is communicated to the remote location at a first frequency, and the second location of the vehicle is communicated to the remote location at a second frequency, which is different from the first frequency.