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Navigation system

  • US 5,765,123 A
  • Filed: 07/12/1996
  • Issued: 06/09/1998
  • Est. Priority Date: 08/07/1993
  • Status: Expired due to Term
First Claim
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1. A navigation system for tracking current position and guiding a vehicle along a route to a destination, comprising:

  • a memory unit containing stored map information for areas divided into predetermined regions and facility information for each predetermined region, said facility information for each predetermined region being divided into different genres, said genres representing different types of facilities;

    point designating means for designating a location point;

    area determining means for determining which one of said predetermined regions contains the location point designated by the point designating means;

    genre designating means for designating one of said genres;

    retrieval means for retrieving facility information from the memory unit for the one genre designated by the genre designating means and within the one predetermined region determined by the area determining means; and

    facility information output means for outputting the retrieved facility information.

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