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Tracking variable conditions using radio frequency identification

  • US 8,106,778 B2
  • Filed: 12/21/2009
  • Issued: 01/31/2012
  • Est. Priority Date: 03/20/2007
  • Status: Active Grant
First Claim
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1. A method for obtaining and processing information from a radio frequency identification tag, the method comprising:

  • transmitting a radio frequency signal;

    receiving a backscattered radio frequency signal in response to the radio frequency signal, the backscattered radio frequency signal including data identifying the radio frequency identification tag, variable data representing a measurement taken by the radio frequency identification tag, and non-variable data identifying the variable data as measured data; and

    storing, in a database, the variable data in association with the data identifying the radio frequency identification tag.

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