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Estimating the location of inexpensive wireless terminals by using signal strength measurements

  • US 7,389,114 B2
  • Filed: 02/11/2004
  • Issued: 06/17/2008
  • Est. Priority Date: 02/11/2004
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a first signal monitor for measuring;

    (i) the signal strength at said first signal monitor of a first packet transmitted by an emitter; and

    (ii) the signal strength at said first signal monitor of a second packet transmitted by a wireless terminal; and

    a processor for;

    (a) receiving the location of said emitter; and

    (b) determining the location of said wireless terminal based on (i), (ii), and the location of said emitter.

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