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Land vehicle navigation apparatus with visual display

  • US 5,243,528 A
  • Filed: 09/12/1990
  • Issued: 09/07/1993
  • Est. Priority Date: 09/12/1990
  • Status: Expired due to Term
First Claim
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1. Land vehicle navigation apparatus with visual display comprising:

  • means for calculating a desired navigation route for a vehicle, via fixed road paths, between a start location and a desired destination location;

    means for determining estimated current position of the vehicle;

    wherein the improvement comprises,display means for visually displaying to said vehicle operator in one color at least a portion of said calculated navigation route, which displayed portion includes a plurality of different road path intersections, on a road map display along with displaying, on said road map display in a second contrasting color, actual vehicle travel as a displayed travel path between a predetermined point on said road map display to a position on said road map display corresponding to said estimated current vehicle position.

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