Patents by Inventor Keith Bernhardt

Keith Bernhardt 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).

  • Synchronous optical transmission system
    Patent number: 5185736
    Abstract: A synchronous optical transmission system for interfacing SONET formatted channels to lower speed channels in either a SONET format or otherwise. The transmission system incorporates a fiber transmission system, terminal multiplexers and add/drop multiplexers that in turn incorporate a plurality of features, such as parallel scrambling circuitry, frame synchronization circuitry and the like.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: February 9, 1993
    Assignee: Alcatel NA Network Systems Corp.
    Inventors: Raymond E. Tyrrell, O. Lamar Bishop, William E. Powell, Dale L. Krisher, William H. Stephenson, M. Rodney Briscoe, Hal A. Thorne, Claude M. Hurlocker, V. Paul Runyon, Timothy J. Williams, Joseph E. Sutherland, William B. Weeber, Michael J. Gingell, Kenneth J. Stoia, William J. Fox, Jeffrey P. Jones, Richard M. Czerwiec, Ertugrul Baydar, Heinrich T. Sonnenberg, Richard Peters, Gus C. Sanders, Richard J. Sanders, Jr., Francis G. Noser, Joseph L. Smith, Jak Yaemsiri, Camille A. Abu-Saba, Patrick M. Farrell, Wenkwei Rou, Victor W. Wilkerson, Mohammad S. Arani, Stephen C. Dunning, Keith Bernhardt, Dana Merrill, Michael Sutton