Navigation apparatus, map information storage medium, and method of providing information about area lying beyond intersection
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United States of America Patent
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Oct 26, 2004
Grant Date -
Jul 10, 2003
app pub date -
Jan 6, 2003
filing date -
Jan 10, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A navigation apparatus includes a route searching unit for searching for a route from a current position of a moving object to a destination or via point based on map information, an intersection extraction unit for extracting information about an intersection that is located forward of the moving object along the route and that is a target for guidance from the map information, an area information extraction unit for extracting plural pieces of area information about areas lying along the route and beyond the intersection from the map information, a comparison unit for comparing specific information included in each piece of area information with information about the destination or via point, and a selection unit for selecting one piece of area information that is to be a target for guidance based on comparison results obtained by the comparison unit among from the plural pieces of area information.
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