Please download the dossier by clicking on the dossier button x
×

Vehicle-mounted position computing apparatus

  • US 20030023369A1
  • Filed: 07/22/2002
  • Published: 01/30/2003
  • Est. Priority Date: 08/23/2000
  • Status: Abandoned Application
First Claim
Patent Images

1. (Amended) A vehicle-loaded position calculating device for calculating the present position of a vehicle on a map by map matching, through comparison between present position information of the vehicle calculated by dead reckoning navigation method and radio navigation method and road data accumulated in a map data base, characterized by traveling lane identifying means for identifying a lane where the vehicle is currently traveling, and position calculating means for judging a branched road, to which the road identified by said traveling lane identifying means is connected, based on said road data and for raising likelihood to be selected of said branched road as the present position of said vehicle.

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