×

Method for obtaining a three-dimensional map representation, and a navigation system

  • US 6,628,278 B1
  • Filed: 05/22/2000
  • Issued: 09/30/2003
  • Est. Priority Date: 05/21/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for obtaining a three-dimensional map representation for a navigation system, which comprises:

  • providing a road map database containing two-dimensional map data having a network of road segments represented by points;

    interconnecting the road segments by nodes and assigning geocoordinates to the nodes;

    providing a separate geotopology database containing three-dimensional topological data;

    linking the road segments to be represented with the separate geotopology database;

    generating display data by determining associated points of the three-dimensional topological data for the nodes of the road segments to be output; and

    subsequently outputting the display data onto a display device and plotting the road segments between the determined associated points.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×