Patents by Inventor Keven Todd Chapman

Keven Todd Chapman 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).

  • Method and apparatus for integrated services digital network user part (ISUP) signaling loopback
    Patent number: 6393022
    Abstract: A method and apparatus are provided for processing Integrated Services Digital Network User Part (ISUP) signaling within a switching system. ISUP signaling messages associated with a plurality of ISL trunks are processed within a switching system by provisioning the ISL trunks, identifying the ISUP signaling messages that are associated with the ISL trunks, and routing the identified ISUP signaling messages within the switching system to the far endpoints of the trunks using layers 1, 2, and 3 of Open System Interconnection (OSI) protocol.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: May 21, 2002
    Assignee: Nortel Networks Limited
    Inventors: Jeffrey Allen Hewett, Keven Todd Chapman