Systems and methods of wireless power charging through multiple receiving devices

  • US 10,038,332 B1
  • Filed: 02/19/2016
  • Issued: 07/31/2018
  • Est. Priority Date: 12/24/2015
  • Status: Active Grant
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First Claim
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1. A wireless power transmitter, comprising:

  • a near-field transmitting antenna configured to leak radio frequency (RF) energy from a surface of the wireless power transmitter to wirelessly provide power to a receiver device upon a metal surface of the receiver device contacting the surface of the wireless power transmitter;

    a far-field transmitting antenna configured to transmit two or more RF power transmission waves over a far-field distance to a location of the receiver device to wirelessly provide power to the receiver device; and

    a communications component configured to receive a communication signal from the receiver device that includes data indicating the location of the receiver device,wherein the wireless power transmitter is configured to;

    determine whether the receiver device is located at least a threshold distance away from the wireless power transmitter based at least in part on the data included in the communication signal; and

    transmit the two or more RF power transmission waves using the far-field transmitting antenna in response to determining that the receiver device is located at least the threshold distance away from the wireless power transmitter.

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