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Method for improving the accuracy of a wireless location system

  • US 6,097,336 A
  • Filed: 01/12/1999
  • Issued: 08/01/2000
  • Est. Priority Date: 01/08/1999
  • Status: Expired due to Term
First Claim
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1. A method for use in a Wireless Location System in locating a mobile transmitter, comprising the steps of:

  • (a) making a first estimate of the location of said mobile transmitter, said first estimate being made on the basis of a first reverse transmission from the mobile transmitter;

    (b) causing the mobile transmitter to emit a second transmission;

    (c) making a second estimate of the location of the mobile transmitter; and

    (d) combining at least said first and second estimates to obtain an improved, more accurate estimate of the location of the mobile transmitter.

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