×

Navigation system and map display

  • US 20030132862A1
  • Filed: 12/19/2002
  • Published: 07/17/2003
  • Est. Priority Date: 12/28/2001
  • Status: Active Grant
First Claim
Patent Images

1. A navigation system for displaying a route to a destination on a map comprising:

  • a memory unit for storing road network information indicating a road network and map information defining objects to be displayed on the map;

    a map drawing unit for drawing the map including the objects on the basis of the map information;

    a route retrieval unit for retrieving a route to the destination on the basis of the road network information; and

    a navigation screen displaying unit for displaying a navigation screen expressing the route retrieved by the route retrieval unit on the map drawn by the map drawing unit, wherein in the map information, at least some of the objects are defined to relate to at least one of a road point and a road interval, and wherein the map drawing unit draws objects so that the objects defined to relate to a road point or a road interval through which the route runs are displayed on the navigation screen in a configuration to distinguish them from other objects.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×