Patents by Inventor Keith D. Hilliard

Keith D. Hilliard 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).

  • Data-link and antenna selection assembly
    Patent number: 6121925
    Abstract: The data-link and antenna selection assembly combines a group of conformal ntenna arrays with radio frequency (RF) detection, control and switching circuitry to provide up to 360 degrees of azimuth coverage for an aerial or terrestrial vehicle. The signal monitoring comprises signal detection and determination of signal frequency and strength. These are input to a switching controller which selects the best receive path and transmit path as a function of received signal frequency and strength. Use of conformal antenna arrays eliminates the requirement for cumbersome mechanical positioners.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: September 19, 2000
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Keith D. Hilliard