Wirelessly powered audio devices

  • US 10,264,352 B2
  • Filed: 01/09/2017
  • Issued: 04/16/2019
  • Est. Priority Date: 09/27/2008
  • Status: Active Grant
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First Claim
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1. A wirelessly powered audio device comprising:

  • a resonator configured to wirelessly receive energy from oscillating magnetic fields and to provide power to the audio device or a battery of the audio device using the received energy;

    noise monitoring circuitry configured to detect a noise component in an audio signal of the audio device, the noise component resulting from receiving energy wirelessly; and

    a filter configured to attenuate the noise component in the audio signal of the audio device.

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