06516267 is referenced by 54 patents and cites 4 patents.

A method for updating a geographic database is disclosed. Data collecting equipment is installed in each of a plurality of vehicles each of which also has a navigation system. The data collection equipment is used to collect data while the vehicles are being driven along roads by their respective users. In addition, a method for assigning a confidence level to geographic data is disclosed. The confidence level is assigned to the geographic data as an attribute. In addition, a method for determining a position of a vehicle by sensing roadside structures is disclosed. Data indicating positions of roadside structures are contained in a geographic database. By matching positions of sensed roadside structures to data in the geographic database that indicates the positions of the structures, the position of the vehicle while traveling can be determined.

Title
System and method for updating, enhancing or refining a geographic database using feedback
Application Number
9/532751
Publication Number
6516267 (B1)
Application Date
March 22, 2000
Publication Date
February 4, 2003
Inventor
Russell Shields
Chicago
IL, US
John Jasper
Arlington Hts.
IL, US
Lawrence M Kaplan
Chicago
IL, US
Aaron Crane
Palatine
IL, US
Kevin Cherveny
Wilmington
IL, US
Agent
Lawrence M Kaplan
US
Jon D Shutter
US
Frank J Kozak
US
Assignee
Navigation Technologies Corporation
IL, US
IPC
G06F 17/00
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