Transmittersand methods for adjusting wireless power transmission based on information from receivers

  • US 9,859,756 B2
  • Filed: 12/27/2014
  • Issued: 01/02/2018
  • Est. Priority Date: 07/06/2012
  • Status: Active Grant
  • ×
    • Pin Icon | RPX Insight
    • Pin
First Claim
Patent Images

1. A transmitter device for wireless power transmission, the transmitter device comprising:

  • a plurality of antennas configured to transmit power waves, wherein at least one antenna of the plurality of antennas is a communications antenna configured to transmit and receive communication signals using a wireless communications protocol;

    a communication circuit coupled to the communications antenna and configured to receive communication signals representing status information from a receiver associated with an electronic device, wherein the status information is used to determine a location of the receiver;

    an integrated circuit connected to the plurality of antennas and configured to generate the power waves and to adjust a phase and a gain of each respective power wave based on the status information from the receiver to improve precision of locating a pocket of energy at the location of the receiver; and

    a processor configured to;

    control the integrated circuit to adjust the phase and the gain of the power waves based on the status information from the receiver to (i) improve precision of locating one or more pockets of energy at the location of the receiver and (ii) avoid obstacles located between the transmitter device and the location of the receiver, the one or more pockets of energy resulting from constructive interference patterns produced by converging the power waves at the location, andcontrol the communication circuit'"'"'s transmitting and receiving of at least the communication signals containing the status information,whereby the transmitter device is configured to wirelessly transmit the power waves with the adjusted phases and gains so that the power waves to converge at the location associated with the receiver to form the one or more pockets of energy for capturing by the receiver.

View all claims