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Inductive power and data transmission system based on class D and amplitude shift keying

  • US 8,023,586 B2
  • Filed: 02/15/2007
  • Issued: 09/20/2011
  • Est. Priority Date: 02/15/2007
  • Status: Active Grant
First Claim
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1. An rf (radio frequency) signal transfer link comprising:

  • a signal transfer link for using amplitude shift keying (ASK) to transfer rf data pulses, the link including a receiver circuit and a transmitter circuit, the transmitter circuit having an rf ON state and an rf OFF state, the transmitter circuit reducing the resonant circuit quality factor of the transmitter circuit during said rf OFF state, relative to the resonant circuit quality factor of the transmitter circuit during said rf ON state, thereby accelerating decay of rf amplitude at the receiver circuit during said rf Off state.

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