Patents by Inventor Christopher Ian Walker

Christopher Ian Walker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Self-calibrating phased-array transceiver
    Patent number: 12136772
    Abstract: A phased-array includes, in part, N transceivers each including a receiver and a transmitter, and a controller. The phased array is configured to transmit a first radio signal from a first element of the array during a first time period, receive the first radio signal from a second element of the array, recover a first value associated with the radio signal received by the second element, transmit a second radio signal from the second element of the array during a second time period, receive the second radio signal from the first element of the array, recover a second value associated with the radio signal received by the first element, and determine a first phase of a reference signal received by the second element from the recovered first and second values. The first phase is relative to a second phase of the reference signal received by the first element.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: November 5, 2024
    Assignee: California Institute of Technology
    Inventors: Austin C. Fikes, Behrooz Abiri, Florian Bohn, Seyed Ali Hajimiri, Christopher Ian Walker, David Elliot Williams
  • SELF-CALIBRATING PHASED-ARRAY TRANSCEIVER
    Publication number: 20230109403
    Abstract: A phased-array includes, in part, N transceivers each including a receiver and a transmitter, and a controller. The phased array is configured to transmit a first radio signal from a first element of the array during a first time period, receive the first radio signal from a second element of the array, recover a first value associated with the radio signal received by the second element, transmit a second radio signal from the second element of the array during a second time period, receive the second radio signal from the first element of the array, recover a second value associated with the radio signal received by the first element, and determine a first phase of a reference signal received by the second element from the recovered first and second values. The first phase is relative to a second phase of the reference signal received by the first element.
    Type: Application
    Filed: February 28, 2022
    Publication date: April 6, 2023
    Inventors: Austin C. Fikes, Behrooz Abiri, Florian Bohn, Seyed Ali Hajimiri, Christopher Ian Walker, David Elliot Williams
  • Self-calibrating phased-array transceiver
    Patent number: 11264715
    Abstract: A phased-array includes, in part, N transceivers each including a receiver and a transmitter, and a controller. The phased array is configured to transmit a first radio signal from a first element of the array during a first time period, receive the first radio signal from a second element of the array, recover a first value associated with the radio signal received by the second element, transmit a second radio signal from the second element of the array during a second time period, receive the second radio signal from the first element of the array, recover a second value associated with the radio signal received by the first element, and determine a first phase of a reference signal received by the second element from the recovered first and second values. The first phase is relative to a second phase of the reference signal received by the first element.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: March 1, 2022
    Assignee: California Institute of Technology
    Inventors: Austin Fikes, Behrooz Abiri, Florian Bohn, Seyed Ali Hajimiri, Christopher Ian Walker, David Elliot Williams