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Navigation apparatus, navigation system, and navigation search method

  • US 20050010360A1
  • Filed: 06/02/2004
  • Published: 01/13/2005
  • Est. Priority Date: 07/10/2003
  • Status: Active Grant
First Claim
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1. A navigation apparatus, comprising:

  • at least one memory that;

    stores a plurality of traffic information tables, the traffic information tables including a length of time required to travel from a predefined one of a plurality of predefined areas to each remaining one of the plurality of predefined areas during one of a plurality of predefined time periods; and

    stores, for each of the plurality of predefined time periods, predicted traffic information associated with each of at least one link within each predefined area; and

    at least one controller that;

    selects a traffic information table from the plurality of traffic information tables, wherein the selected traffic information table includes as the predefined one of the plurality of predefined areas a predefined area containing a starting point and the selected traffic information table describes traffic information for a one of the plurality of predefined time periods in which traveling will start; and

    searches for a route from the starting point to a destination wherein, predicted traffic information is associated with each of the at least one links within any one of the plurality of predefined areas based on a time at which, according to the predicted traffic information, a vehicle traveling the route is expected to arrive within that predefined area.

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