Patents by Inventor Mark Alan Tippens

Mark Alan Tippens 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).

  • LAN emulation service delay of multicast tree generation during congestion
    Patent number: 6324163
    Abstract: A method of alleviating network congestion in an emulated Local Area Network (ELAN) within an Asynchronous Transfer Mode (ATM) network is implemented. The method mitigates network congestion by distributing the connection times of Local Area Network (LAN) Emulation Client (LEC) to an ELAN over random periods of time. When a LAN Emulation Server (LES) or Broadcast and Unknown Server (BUS) attempts to build point-to-multipoint connections to the LEC, it issues control messages to network switches. If the messages are dropped or rejected the LES or BUS recognizes the network is in a congested state and randomly retries to attempt connection.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: November 27, 2001
    Assignee: International Business Machines Corporation
    Inventors: Cedell Adam Alexander, Jr., Jim P. Ervin, Edward Joel Rovner, Matthew Blaze Squire, Mark Alan Tippens