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Methods and apparatus for identifying asset location in communication networks

  • US 20060125690A1
  • Filed: 02/03/2006
  • Published: 06/15/2006
  • Est. Priority Date: 11/14/2000
  • Status: Abandoned Application
First Claim
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1. A method for identifying a location of an asset in a communication network, said network having at least a first receiver device and a second receiver device, each receiver device having a known position, said method comprising:

  • estimating a first time-of-arrival of an 802.11 communication sequence transmitted by said asset, said first time-of-arrival corresponding to arrival of said sequence at said first receiver device;

    estimating a second time-of-arrival of said sequence, said second time-of-arrival corresponding to arrival of said sequence at said second receiver device; and

    calculating a first time-difference-of-arrivals using said first and second times-of-arrival.

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