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Inductive power transfer using acoustic or haptic devices

  • US 10,044,232 B2
  • Filed: 04/04/2014
  • Issued: 08/07/2018
  • Est. Priority Date: 04/04/2014
  • Status: Active Grant
First Claim
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1. A system for inductive power transfer, comprising:

  • a first electronic device having a membrane;

    a first coil associated with the first electronic device; and

    a controller operable to change the first coil between a first mode and a second mode, wherein;

    the first coil is operable in the first mode to move the membrane to produce sound using the membrane;

    the first coil is operable in the second mode to inductively transmit power wirelessly to a second electronic device, the power received from a power supply physically coupled to the first coil; and

    the first electronic device applies current of at least one first frequency to the first coil in the first mode and of at least one second frequency in the second mode.

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