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System and method for updating, enhancing or refining a geographic database using feedback

  • US 6,516,267 B1
  • Filed: 03/22/2000
  • Issued: 02/04/2003
  • Est. Priority Date: 10/16/1997
  • Status: Expired due to Term
First Claim
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1. A method for determining a position of a vehicle using a geographic database that contains data indicating positions of structures located alongside roads wherein said data were obtained by traveling along said roads with a data collection system and detecting positions of said structures, the method comprising the steps of:

  • while said vehicle is traveling along said roads in a geographic area, sensing roadside structures with sensor equipment in said vehicle;

    matching positions of said roadside structures to said data indicating positions of said structures contained in a geographic database in said vehicle; and

    determining a position of said vehicle along a road based upon said matching.

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