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Preambles with relatively unambiguous autocorrelation peak in RFID systems

  • US 20060082442A1
  • Filed: 10/18/2004
  • Published: 04/20/2006
  • Est. Priority Date: 10/18/2004
  • Status: Abandoned Application
First Claim
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1. An RFID tag comprising:

  • two antenna segments; and

    a modulator capable of coupling and uncoupling the antenna segments together in response to a controlling signal having a waveform that includes a plurality of first segments and second segments different from the first segments, all in a succession of first, first, second, first, second, second, first, second, second, second, first, and then first.

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