Navigation system for guiding a mobile unit through a route to a destination using landmarks
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United States of America Patent
Stats
-
Jun 20, 2000
Grant Date -
N/A
app pub date -
Oct 16, 1997
filing date -
Oct 17, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A navigation system which provides easy-to-understand route guidance using landmarks. Once a guided route is determined (201), the system determines the priority of landmarks to be used in route guidance considering such factors as an initial setting, time of day (daytime or nighttime), and user specifications (201), and selects crossings for which route guidance will be given (203). As a mobile unit approaches one of selected crossings (203, 206, 207), the system selects one of landmarks at the crossing and, at the same time, selects guidance phrases based on a relationship between the position of the landmark and running directions in which the mobile unit runs before and after passing through the crossing (209). Then, with the use of the landmark, the system provides guidance information on the running direction after passing through the crossing (210) using the selected phrase.
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Family
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Cited Art Landscape
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