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Virtual signs for improving information communicated to the automotive driver

  • US 7,209,807 B2
  • Filed: 05/22/2003
  • Issued: 04/24/2007
  • Est. Priority Date: 07/12/2000
  • Status: Expired due to Term
First Claim
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1. A method for providing information to moving targets traveling along a travel path, comprising:

  • determining a position of a first moving target along a travel path;

    determining a position of a second moving target along the travel path;

    selecting between information targeted for the first moving target and the second moving target;

    displaying the selected information to the first and second moving targets; and

    determining a direction of travel of the first moving target along the travel path;

    wherein determining the position and the direction of travel along the travel path comprises;

    associating an RFID tag with the first moving target;

    detecting the RFID tag as being in proximity to a first RFID tag station; and

    detecting the RFID tag as being in proximity to a second RFID tag station.

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