Patents by Inventor Justin Burch

Justin Burch 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).

  • Gimbal disturbance calibration and compenstion
    Patent number: 7437222
    Abstract: Various embodiments of the present invention are directed to precision control system for spacecraft gimbaled payloads. Embodiments of the invention provide an innovative technique of calibrating gimbals disturbances to directly canceling gimbal control disturbances. Such a calibration system includes a receiver for receiving telemetry data for pointing a payload, a processor for calculating a disturbance parameter vector for a gimbal disturbance model with the telemetry data and a transmitter for transmitting the disturbance parameter vector to compensate for pointing error when applied in pointing the payload. The gimbal disturbance model comprises a harness stiffness term, a disturbance harmonics term and at least one friction hysteresis term. The telemetry data may be time matched prior to calculating the disturbance parameter vector.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: October 14, 2008
    Assignee: The Boeing Company
    Inventors: Ketao Liu, Justin Burch, Gregory S. Becker, Patrick A. Nelson
  • Gimbal disturbance calibration and compenstion
    Publication number: 20070027590
    Abstract: Various embodiments of the present invention are directed to precision control system for spacecraft gimbaled payloads. Embodiments of the invention provide an innovative technique of calibrating gimbals disturbances to directly canceling gimbal control disturbances. Such a calibration system includes a receiver for receiving telemetry data for pointing a payload, a processor for calculating a disturbance parameter vector for a gimbal disturbance model with the telemetry data and a transmitter for transmitting the disturbance parameter vector to compensate for pointing error when applied in pointing the payload. The gimbal disturbance model comprises a harness stiffness term, a disturbance harmonics term and at least one friction hysteresis term. The telemetry data may be time matched prior to calculating the disturbance parameter vector.
    Type: Application
    Filed: July 28, 2005
    Publication date: February 1, 2007
    Applicant: The Boeing Company
    Inventors: Ketao Liu, Justin Burch, Gregory Becker, Patrick Nelson