Receiver for wireless power reception having a backup battery

  • US 10,396,588 B2
  • Filed: 01/16/2018
  • Issued: 08/27/2019
  • Est. Priority Date: 07/01/2013
  • Status: Active Grant
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First Claim
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1. A method for wireless power charging, the method comprising:

  • when a receiver that is embedded within an electronic device is within a threshold distance from a transmitter;

    receiving, by the receiver, a plurality of wireless power transmission waves transmitted by the transmitter, wherein each wireless power transmission wave of the plurality of wireless power transmission waves constructively interferes with at least one other wireless power transmission wave of the plurality of wireless power transmission waves at the receiver;

    converting, by the receiver, the plurality of wireless power transmission waves into usable electricity; and

    providing, by the receiver, the usable electricity to a backup battery of the receiver to provide a full or partial charge of the backup battery, wherein the backup battery of the receiver is distinct and separate from a battery of the electronic device; and

    when the receiver is not within the threshold distance from the transmitter, and after providing the usable electricity to the backup battery to provide the full or partial charge of the backup battery, draining the backup battery to provide power to the battery of the electronic device.

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