Patents by Inventor Douglas N. Schwartz

Douglas N. Schwartz 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).

  • Automated multiband radar test system
    Patent number: 5166691
    Abstract: A versatile, reconfigurable automated radar test system. The invention (200) includes a system controller (212) for providing a plurality of digital control signals. Circuitry (232, 234, 236) is provided for converting the digital control signals to static analog and digital test signals. In addition, a function generator (240) is included for generating a plurality of dynamic analog and digital test signals. An interfacing arrangement (239, 242) is included for applying the static and dynamic analog and digital test signals to a module (12) of a radar system (10) under test.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: November 24, 1992
    Assignee: Hughes Aircraft Company
    Inventors: Moshing P. Chin, Douglas N. Schwartz