Patents by Inventor Raymond Charles D'Ambrosio

Raymond Charles D'Ambrosio 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).

  • Satellite attitude control system
    Patent number: 6471161
    Abstract: An attitude control system uses a first order partial derivative of an error signal, representing a difference between a commanded pitch attitude and a sensed, actual pitch attitude. The first order partial derivative forms a cross product with the Earth's magnetic field to provide a X axis torque rod dipole command, which powers the torque rod in a way that causes a satellite to move toward its commanded attitude.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: October 29, 2002
    Assignee: Lockheed Martin Corporation
    Inventors: Raymond Charles D'Ambrosio, Minh Ngoc Tran