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Route search apparatus

  • US 5,978,733 A
  • Filed: 12/08/1997
  • Issued: 11/02/1999
  • Est. Priority Date: 12/09/1996
  • Status: Expired due to Term
First Claim
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1. A route search apparatus comprising:

  • a storage device that stores link positional information of individual links and link connection information between said links, a minimum unit of road on a map being referred to as a link;

    a departure point specification device that specifies a point of departure on the map;

    a destination specification device that specifies a destination on the map; and

    a control device that selects a start point link that is to constitute a start point of a route search based upon said point of departure specified by said departure point specification device and said link positional information, selects an end point link that is to constitute an end point of said route search based upon said destination specified by said destination specification device and said link positional information, and performs a route search between said start point link and said end point link based upon said link connection information, wherein;

    said control device selects a plurality of said start point links and a plurality of said end point links.

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