Patents by Inventor Mahmoud A. S. El-Banna

Mahmoud A. S. El-Banna 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).

  • Synchronizing signal recovery circuit for radiotelephones
    Patent number: 4592076
    Abstract: An improved circuit for synchronizing signal recovery particularly suitable for mobile radiotelephone operation is disclosed. The initializing circuit of the phase-locked loop in the data receiver is inhibited for a predetermined duration upon triggering of a "window mode" by either of a rising or falling pulse-edge in a sequence of "ones" or "zeros" in the received data. The window mode masks the invalid transitions in such sequences and prevents retriggering by such transitions.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: May 27, 1986
    Assignee: Novatel Communications Ltd.
    Inventor: Mahmoud A. S. El-Banna