Patents by Inventor John J. Portelli

John J. Portelli 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).

  • Noise signal processor
    Patent number: 5353260
    Abstract: Apparatus for providing a direct quantitative readout of the amplitudes of arious frequency lines that constitute the envelope of an amplitude-modulated broadband noise signal. A selected band of carrier frequencies is fed to an AGC circuit that provides a constant-input signal amplitude to a demodulator for a period of time that is greater than the period of the lowest frequency of the modulating signal for detection. The detected signal is fed to a spectrum analyzer for the direct reading of the percent modulation.
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: October 4, 1994
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Lawrence C. Pharo, Jr., John J. Portelli