Patents by Inventor Wolfram W. Lemppenau

Wolfram W. Lemppenau 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).

  • Collision-free insertion and removal of circuit-switched channels in a packet-switched transmission structure
    Patent number: 5327428
    Abstract: This invention relates to a method and system for a collision free insertion and removal of circuit-switched channels in a self-adaptive transmission data structure carrying different classes of packet-switched traffic on a slotted Local Area Network (LAN). This network may have bus or ring topology. The different classes of traffic are asynchronous traffic (packet-switched), synchronous traffic (packet-switched, time sensitive), isochronous traffic (circuit-switched), and signalling on demand. The inventive self-adaptive transmission data structure permits an economic, flexible and bandwidth efficient integration of these different classes of traffic.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: July 5, 1994
    Assignee: International Business Machines Corporation
    Inventors: Harmen Van As, Wolfram W. Lemppenau, Erwin A. Zurfluh