Patents by Inventor Daniel V. Wilson

Daniel V. Wilson 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).

  • Fast multilevel hierarchical routing table lookup using content addressable memory
    Patent number: 5386413
    Abstract: A switch memory 100 for implementing a multilevel hierarchical routing table in a switch is disclosed. The switch memory 100 includes a plurality of mask circuits 120, 121 and 122, which each correspond to one level of the multilevel hierarchy. Each mask circuit 120, 121 and 122 receives a destination address of an incoming call or packet and masks out portions of the received destination address which do not correspond to the level of the hierarchy with which the mask circuit 120, 121 or 122 is associated. A memory array 130, 131 or 132 corresponding to each mask circuit 120, 121 or 122, is provided which is capable of storing a table of entries including an output port entry and a corresponding destination address of one level of the multilevel hierarchy of destination addresses.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: January 31, 1995
    Assignee: Bell Communications Research, Inc.
    Inventors: Anthony J. McAuley, Paul F. Tsuchiya, Daniel V. Wilson