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Navigation system

  • US 6,175,805 B1
  • Filed: 04/12/1999
  • Issued: 01/16/2001
  • Est. Priority Date: 04/22/1998
  • Status: Expired due to Term
First Claim
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1. A navigation system comprising:

  • a map reproduction means for storing segment data of the type of the road, and the distance of the road segment forming a road network, a memory means for storing evaluation values corresponding to the segment data, a route evaluation means for searching for the route from the starting point to a destination, in accordance with a synthetic evaluation function based on the segment data and, using as parameters, the evaluation values stored in said memory means, input means for inputting values to be used as the evaluation values; and

    setting means for altering the evaluation values stored in said memory means by setting the input values as said evaluation values.

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