Patents by Inventor Jeffrey W. Kidd

Jeffrey W. Kidd 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).

  • Switched token ring over ISL (TR-ISL) network
    Patent number: 6704318
    Abstract: A technique efficiently transports token ring (TR) frames over trunks interconnecting switches of a distributed TR bridge. The TR bridge is characterized by a logical switch fabric that is distributed among the interconnected switches by the trunks, which are preferably interswitch link (ISL) trunks. Each switch includes a Bridge Relay Function (BRF) coupled to a plurality of Concentrator Relay Functions (CRFs) having a plurality of ports for receiving TR frames over TR segments. The BRF and CRF of the distributed TR bridge operate according to a 2-tier switching model wherein each CRF and BRF is assigned an individual virtual local area network identifier. The technique encapsulates the TR frames in a TR-ISL protocol format that accomodates differences in formats of various TR frames and that comports with the 2-tier switching model of the distributed TR bridge.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: March 9, 2004
    Assignee: Cisco Technology, Inc.
    Inventors: Carson Stuart, David A. Carroll, Jeffrey W. Kidd, Kara J. Adams, Kenneth H. Potter, Jr., Wayne Garavaglia
  • Token ring bridge distributed in a switched fabric
    Patent number: 6563832
    Abstract: A distributed token ring (TR) bridge has a logical switch fabric that is distributed over a TR switching network of switches interconnected by trunk links. The distributed TR bridge includes a plurality of TR switches, each having a Bridge Relay Function (BRF) logically coupled to at least one Concentrator Relay Function (CRF). Distribution of the switch fabric essentially comprises logically distributing the BRF function among the network of switches.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: May 13, 2003
    Assignee: Cisco Technology, Inc.
    Inventors: Carson Stuart, Kevin R. Lingle, Claude Alan Cartee, Eric Decker, David A. Carroll, Jeffrey W. Kidd, Kara J. Adams, Kenneth H. Potter, Jr., Randall G. Campbell
  • Ensuring accurate data checksum
    Patent number: 6182267
    Abstract: A system and method are provided that permit an accurate checksum to be generated of a block of data being transmitted via a prefetched bus, despite repeated transmissions of identical portions of the block and presentation of those identical to checksum logic simultaneously with their transmission by the bus, by ensuring that only those portions of the data block that have yet to be checksummed are checksummed.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: January 30, 2001
    Assignee: Cisco Technology, Inc.
    Inventors: Jeffrey W. Kidd, William E. Jennings