Wireless power transmitter configured to transmit power waves to a predicted location of a moving wireless power receiver

  • US 10,008,875 B1
  • Filed: 09/16/2015
  • Issued: 06/26/2018
  • Est. Priority Date: 09/16/2015
  • Status: Active Grant
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First Claim
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1. A method, comprising:

  • at a transmitter with a processor, a wireless communications component, and a plurality of antennas separate and distinct from the wireless communications component;

    transmitting, via the plurality of antennas, one or more power waves into a transmission field of the transmitter;

    receiving, via the wireless communications component, feedback data from a wireless power receiver indicating receipt of at least some of the one or more power waves at an initial location within the transmission field of the transmitter;

    detecting movement of the wireless power receiver away from the initial location;

    in response to detecting the movement of the wireless power receiver away from the initial location, determining, by the processor, (i) a predicted location of the wireless power receiver and (ii) a time at which the wireless power receiver is estimated to reach the predicted location based on the movement of the wireless power receiver away from the initial location; and

    transmitting, via the plurality of antennas and at the determined time, higher power level power waves that converge and constructively interfere at the predicted location of the wireless power receiver.

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