Patents by Inventor Hal Levitt

Hal Levitt 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).

  • Complex Fourier coefficient extractor
    Patent number: 6307895
    Abstract: A system for extracting the complex Fourier coefficients from an unknown RF signal to classify the RF signal is disclosed. The extraction system utilizes optical signal processing in combination with the generation of electronic timing and control signals. The system employs an optical processor comprising a Bragg cell to yield the Fourier coefficients including the amplitude, phase and frequency parameters thereof. The system further includes a parallel arrangement that provide for parallel processing to reduce the computational time needed to determine the complex Fourier coefficients including the amplitude, phase and frequency parameters thereof.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: October 23, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Edward Alexander, Anthony Spezio, Hal Levitt, Brian Krantz