Patents by Inventor James P. Doherty

James P. Doherty 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).

  • Secure fast packet switch having improved memory utilization
    Patent number: 6650639
    Abstract: In a secure fast packet switch having a plurality of input ports and a plurality of output ports, a method of determining which port in the plurality of output ports data that is received on one input port in the plurality of input ports is to be sent to, the method including the steps of determining a physical layer address of a sending node, determining a physical layer address of a receiving node, determining an input port in the plurality of input ports that the data was received on, determining if the physical layer address of the sending node and the physical layer address of the receiving node are an allowed combination, determining the magnitude of the node identification number of the sending node, determining the magnitude of the node identification number of the receiving node, obtaining outbound port information from a first predetermined location in a data structure stored in a memory if the node identification number of the sending node is greater than the node identification number of the recei
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: November 18, 2003
    Assignee: Enterasys Networks, Inc.
    Inventors: James P. Doherty, Andrew Grimes
  • Secure fast packet switch having improved memory utilization
    Publication number: 20030048779
    Abstract: In a secure fast packet switch having a plurality of input ports and a plurality of output ports, a method of determining which port in the plurality of output ports data that is received on one input port in the plurality of input ports is to be sent to, the method including the steps of determining a physical layer address of a sending node, determining a physical layer address of a receiving node, determining an input port in the plurality of input ports that the data was received on, determining if the physical layer address of the sending node and the physical layer address of the receiving node are an allowed combination, determining the magnitude of the node identification number of the sending node, determining the magnitude of the node identification number of the receiving node, obtaining outbound port information from a first predetermined location in a data structure stored in a memory if the node identification number of the sending node is greater than the node identification number of the recei
    Type: Application
    Filed: May 24, 2000
    Publication date: March 13, 2003
    Inventors: James P. Doherty, Andrew Grimes
  • Secure fast packet switch having improved memory utilization
    Patent number: 6101170
    Abstract: In a secure fast packet switch having a plurality of input ports and a plurality of output ports, a method of determining which port in the plurality of output ports data that is received on one input port in the plurality of input ports is to be sent to, the method including the steps of determining a physical layer address of a sending node, determining a physical layer address of a receiving node, determining an input port in the plurality of input ports that the data was received on, determining if the physical layer address of the sending node and the physical layer address of the receiving node are an allowed combination, determining the magnitude of the node identification number of the sending node, determining the magnitude of the node identification number of the receiving node, obtaining outbound port information from a first predetermined location in a data structure stored in a memory if the node identification number of the sending node is greater than the node identification number of the recei
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: August 8, 2000
    Assignee: Cabletron Systems, Inc.
    Inventors: James P. Doherty, Andrew Grimes