Systems and methods for real time or near real time wireless communications between a wireless power transmitter and a wireless power receiver

  • US 10,186,893 B2
  • Filed: 03/04/2016
  • Issued: 01/22/2019
  • Est. Priority Date: 09/16/2015
  • Status: Active Grant
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First Claim
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1. A method for wireless power transmission comprising:

  • transmitting, by one or more antennas of a transmitter, a plurality of radio frequency (RF) power waves to constructively interfere at a location of a receiver to power or charge the receiver;

    while transmitting the plurality of RF power waves, sending, by a communications component of the transmitter and using a pre-existing wireless protocol that includes handshakes, a first request for one or more power values associated with reception of the plurality of RF power waves at the receiver;

    in response to the first request and without sending an additional request for power values to the receiver,continuously and consecutively receiving, by the communications component of the transmitter, a plurality of power messages from the receiver during a plurality of iterations of a loop executed at the receiver, each respective iteration of the loop bypassing the handshakes and other overhead processes associated with the pre-existing wireless protocol, wherein;

    a respective power message received during each respective iteration of the loop contains one or more power values associated with reception of the plurality of RF power waves at the receiver; and

    a next respective power message is received during a next respective iteration of the loop, the next respective iteration of the loop being performed in accordance with a determination that one or more buffers at the receiver that are configured to store the plurality of power messages are not full;

    adjusting RF power waves in accordance with the one or more power values in the plurality of power messages; and

    transmitting, by the one or more antennas of the transmitter, the adjusted RF power waves to the receiver;

    receiving, by the communications component of the transmitter and using the pre-existing wireless protocol, an indicator bit from the receiver indicating that the one or more buffers at the receiver are full; and

    in response to receiving the indicator bit, sending a second request for one or more power values associated with reception of RF power waves at the receiver.

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