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TRACKING SYSTEM USING RADIO FREQUENCY IDENTIFICATION TECHNOLOGY

  • US 20090058606A1
  • Filed: 08/27/2008
  • Published: 03/05/2009
  • Est. Priority Date: 08/27/2007
  • Status: Active Grant
First Claim
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1. A tracking system, comprising:

  • a first transponder coupled with an object and having a first antenna with a predetermined directivity;

    a second transponder coupled with the object and having a second antenna with a predetermined directivity, where an orientation of the second antenna is different from an orientation of the first antenna;

    a transceiver configured to transmit a signal and detect a response from the first transponder and a response from the second transponder; and

    a processing unit configured to determine an orientation parameter of the object by comparing the response from the first transponder and the response from the second transponder.

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