Patents by Inventor Leonard J. Hoffman

Leonard J. Hoffman 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).

  • Patent number: 4613865
    Abstract: A system for determining the direction of propagation of and the radio frequency of a source of electromagnetic energy. A frequency scanning compressive receiver detects the frequency of a radiating source at a high scanning rate. Resolution is thus not as good as desired. In this arrangement, a resolution receiver is combined to obtain sources of radiated energy of different frequencies that the compressive receiver cannot distinguish.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: September 23, 1986
    Assignee: ITT Corporation
    Inventor: Leonard J. Hoffman