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Communicating with an implanted wireless sensor

  • US 7,839,153 B2
  • Filed: 05/15/2009
  • Issued: 11/23/2010
  • Est. Priority Date: 11/01/2004
  • Status: Active Grant
First Claim
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1. A method for determining a resonant frequency of a wireless sensor, comprising:

  • providing a calibration cycle for determining a first relationship between an energizing signal and a calibration signal; and

    providing a measurement cycle for receiving a sensor signal, determining a second relationship between the sensor signal and the energizing signal and determining the resonant frequency of the wireless sensor based on the first relationship and the second relationship.

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