Route search method for navigation device

Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment

Reexamination Certificate

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Details

C701S200000, C701S201000, C701S202000, C701S204000, C701S206000

Reexamination Certificate

active

07890258

ABSTRACT:
A navigation device that calculates an expected travel time or an expected arrival time for each retrieved route, using link costs predetermined for calculation of expected travel times regardless of search conditions. As the link costs for the calculation of expected travel times, are used link travel times obtained by statistically processing traffic information collected in the past, for example.

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Japanese Patent Office Standard Technique Collection, “User Interface of Car Navigation Device 3-B-3”.

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