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Portable device to portable device wireless power transfer methods and systems

  • US 9,577,463 B2
  • Filed: 05/29/2014
  • Issued: 02/21/2017
  • Est. Priority Date: 05/29/2014
  • Status: Active Grant
First Claim
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1. A portable consumer electronic device, comprising:

  • a battery;

    a user interface configured to provide a user with information and receive inputs from a user; and

    a wireless power distribution circuitry coupled with the battery, wherein the wireless power distribution circuitry comprises;

    a power transfer antenna electrically coupled with the battery and configured to wirelessly and inductively couple with a separate second portable consumer electronic device that is configured to wirelessly and inductively couple with the portable consumer electronic device, and the wireless power distribution circuitry is configured to wirelessly transfer power from the battery through the power transfer antenna to the second portable consumer electronic device;

    a power supply controller configured to control the wireless transfer of power through the power transfer antenna; and

    a charge circuitry coupled with the power transfer antenna, wherein the charge circuitry is configured to wirelessly receive electrical power through the power transfer antenna and from a separate third portable consumer electronic device, wherein the charge circuitry comprises local power storage circuitry configured to store the received electrical power received from the third portable consumer electronic device, and to discharge the electrical power from the local power storage circuitry to the battery when a power level of the local power storage circuitry exceeds a first threshold directing the wirelessly received electrical power to the battery to be stored.

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