SYSTEM AND METHOD FOR UPDATING A STATISTICAL DATABASE IN A VEHICLE NAVIGATION SYSTEM
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United States of America Patent
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Issued Date -
Sep 18, 2008
app pub date -
Mar 16, 2007
filing date -
Mar 16, 2007
priority date (Note) -
Abandoned
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Abstract
In a navigation system of a vehicle having a statistical database containing travel information for a plurality of road links, a method and system for updating data contained in the statistical database. Real-time travel data for the vehicle is acquired for at least one of the road links in the statistical database as the vehicle travels between the end nodes of that road link. The acquired real-time travel data is then processed to ensure that it meets certain criteria, e.g. the absence of nonrepeating incidents. Travel data which meets that criteria is then utilized to update the road link data in the statistical database. The travel data acquisition, processing and updating of the statistical database is performed internally in the navigation system without interconnecting to external servers.
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