Patents by Inventor William W. Ellington, Jr.

William W. Ellington, Jr. 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).

  • Extending asynchronous transfer mode ATM QoS across local area networks
    Patent number: 6175569
    Abstract: Asynchronous Transfer Mode (ATM) network Quality of Service (QoS) guarantees are extended to Token Ring LAN stations. A LAN station originating a request for a connection through an ATM network to either a remote ATM station or a remote LAN station sends a frame having an encoded priority value to a LAN/ATM interface device. The device maps the priority value to one of the standard ATM traffic classes; namely, CBR, VBR, ABR and UBR. The LAN/ATM interface device attempts to set up a connection through the ATM network conforming to the mapped class or QoS. If the connection destination is another LAN station, a destination LAN/ATM interface device attempts to set up the final ATM-LAN phase of the connection.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: January 16, 2001
    Assignee: International Business Machines Corporation
    Inventors: William W. Ellington, Jr., Francis E. Noel, Jr., Lorrie A. Tomek