Patents by Inventor William C. Hallmark

William C. Hallmark 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).

  • Passive missile tracking and guidance system
    Patent number: 5560567
    Abstract: A method and apparatus for passive tracking and guidance in missile systems is disclosed. The system is utilized in conjunction with a target acquisition system such as a scanning infrared detection system. The target and missile are sensed and the measured displacement therebetween is utilized in conjunction with calculated nominal trajectory data to generate guidance control signals. In a preferred embodiment of the present invention, the guidance control signals are transmitted to a receiver on the missile utilizing a radar frequency transmitter.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: October 1, 1996
    Assignee: Loral Vought Systems Corporation
    Inventor: William C. Hallmark