Patents by Inventor Ahmed M. Hamad

Ahmed M. Hamad 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).

  • Process and device for system characterization by spectral analysis
    Patent number: 4527116
    Abstract: A pseudo-random measuring signal whose spectrum is constituted by lines of predetermined frequencies spaced apart from each other is applied to a system to be characterized, and one or, successively and one by one, a plurality of lines of the spectrum of the measuring signal are selected for making a comparison in phase and amplitude between the input and the output of the system; for a non-linear system, one or, successively and one by one, a plurality of lines of the spectrum of the measuring signal are eliminated at the input of the system, and the phase and/or amplitude of the corresponding line is measured at the output of the system.
    Type: Grant
    Filed: June 29, 1982
    Date of Patent: July 2, 1985
    Assignee: Ecole Superieure d'Electricite and Enertec
    Inventors: Antoine Sorba, Gerard J. Attal, Georges B. Seignier, Ahmed M. Hamad