Patents by Inventor Louis A. deRosa, deceased

Louis A. deRosa, deceased 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).

  • Secure single sideband communication system using modulated noise subcarrier
    Patent number: RE34004
    Abstract: 10. A transmitter for a secret communication system comprising a source of carrier frequency energy, a source of cyclically repetitive noise energy, means to synchronize the cyclical repetition rate of said noise energy with a sub-multiple of the frequency of said carrier frequency energy, means to reverse the phase of portions of said noise energy in accordance with a predetermined message code, means to modulate said carrier frequency energy with said encoded noise energy and means to transmit the suppressed carrier single sideband component of said carrier modulation.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: July 21, 1992
    Assignee: ITT Corporation
    Inventors: Mortimer Rogoff, Louis A. deRosa, deceased