Method of operating a navigation system to provide route guidance
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United States of America Patent
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Jan 29, 2013
Grant Date -
Mar 3, 2011
app pub date -
Apr 28, 2010
filing date -
Aug 28, 2009
priority date (Note) -
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Abstract
A method of operating a navigation system to provide a route guidance message for traveling a route is disclosed. A plurality of features visible from a road segment of the route is obtained from a geographic database associated with the navigation system. An importance rating for each of the identified features is determined. The guidance message references the identified feature having a highest determined importance rating. The importance rating considers a permanence or a seasonal dependency of the identified feature. The importance rating is adjusted to favor the identified feature closest to the lane in which the vehicle is currently located.
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