Patents by Inventor Ketao Kiu

Ketao Kiu 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).

  • Method and apparatus for stepping space craft mechanisms at low disturbance rates
    Patent number: 6917861
    Abstract: A method and system for reducing the stepping disturbances generated by a stepping mechanism is disclosed. The method is to select a desired stepping rate to step the stepping mechanism. The method further selects two desired disturbance stepping rates, one fast stepping rate and one slow stepping rate to alternate stepping of the mechanism with the two stepping rates to generate an average stepping rate that is required for the mechanism, and thereby the stepping mechanism will not significantly excite the spacecraft structural mode, and the stepping disturbance is significantly reduced while the mechanism still perform nominally its desired stepping maneuvers.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: July 12, 2005
    Assignee: The Boeing Company
    Inventor: Ketao Kiu
  • Method and apparatus for stepping space craft mechanisms at low disturbance rates
    Publication number: 20040181319
    Abstract: A method and system for reducing the stepping disturbances generated by a stepping mechanism is disclosed. The method is to select a desired stepping rate to step the stepping mechanism. The method further selects two desired disturbance stepping rates, one fast stepping rate and one slow stepping rate to alternate stepping of the mechanism with the two stepping rates to generate an average stepping rate that is required for the mechanism, and thereby the stepping mechanism will not significantly excite the spacecraft structural mode, and the stepping disturbance is significantly reduced while the mechanism still perform nominally its desired stepping maneuvers.
    Type: Application
    Filed: March 12, 2003
    Publication date: September 16, 2004
    Applicant: THE BOEING COMPANY
    Inventor: Ketao Kiu