Systems and methods of object detection using one or more sensors in wireless power charging systems

  • US 10,483,768 B2
  • Filed: 01/16/2018
  • Issued: 11/19/2019
  • Est. Priority Date: 09/16/2015
  • Status: Active Grant
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First Claim
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1. A method of wirelessly delivering power to an electronic device, the method comprising:

  • receiving, from one or more first sensors, first data of a transmission field, the first data identifying at least one object within the transmission field, wherein a first wireless power transmitter is configured to transmit electromagnetic wireless power transmission waves to a wireless power receiver located in the transmission field;

    after receiving the first data, determining whether a path between the wireless power receiver located in the transmission field and the first wireless power transmitter is unobstructed by the at least one object based, at least in part, on the first data; and

    in accordance with a determination that the path between the wireless power receiver and the first wireless power transmitter is unobstructed by the at least one object;

    instructing the first wireless power transmitter to transmit the electromagnetic wireless power transmission waves to the wireless power receiver using the path, wherein the wireless power receiver uses energy from at least some of the electromagnetic wireless power transmission waves to power or charge an electronic device coupled to the wireless power receiver.

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