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Method and device for traffic sign recognition and navigation

  • US 6,560,529 B1
  • Filed: 03/14/2001
  • Issued: 05/06/2003
  • Est. Priority Date: 09/15/1998
  • Status: Expired due to Term
First Claim
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1. A method of recognizing road signs in surroundings of a vehicle and for navigating the vehicle, comprising the steps of recognizing road signs and preparing road sign recognition data;

  • furnishing navigation data for locating the vehicle via a satellite-base positioning system;

    evaluating in the vehicle in a manner selected from the group consisting of evaluating the navigation data for updating and/or supplementation with the road sign recognition data, evaluating the road sign recognition data for their supplementation with the navigation data, and both;

    comparing the road sign recognition data with the navigation data and if there is a deviation, providing an action selected from the group consisting of a warning issued to a vehicle driver, updating the navigation data or the road sign recognition data, and both;

    comparing the road sign recognition data with the navigation data and if there is a deviation, storing information relating to said deviation for future use; and

    employing a system selected from the group consisting of a video system, a laser scanning system, and a radio system, if road sign-specific transmitters that can be received by a road sign recognition device of the vehicle are built into the road signs.

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