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Dynamic adjusting RFID demodulation circuit

  • US 8,729,960 B2
  • Filed: 06/06/2012
  • Issued: 05/20/2014
  • Est. Priority Date: 06/10/2011
  • Status: Active Grant
First Claim
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1. A method of operating a dynamic adjusting RFID demodulator circuit comprising:

  • providing an envelope detector and an RC filter coupled to the envelope detector;

    increasing a threshold of the RFID demodulator circuit in response to the power of an input modulated RF signal; and

    comparing an output of the envelope detector to an output of the RC filter to provide a data output signal.

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