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RFID tag systems, RFID tags and RFID processes with branch node indexing

  • US 20050237157A1
  • Filed: 03/25/2005
  • Published: 10/27/2005
  • Est. Priority Date: 04/13/2004
  • Status: Abandoned Application
First Claim
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1. A radio frequency identification tag comprising:

  • a radio frequency receiver;

    a processor coupled to the receiver;

    a frequency generator coupled to the processor and configured to provide a signal at one of at least three different subcarrier frequencies in response to commands from the processor; and

    a transmitter coupled to the frequency generator and configured to transmit the signal from the frequency generator.

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