Patents by Inventor Dennis N. Blankenship

Dennis N. Blankenship 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).

  • System and method for communicating data packets
    Patent number: 7616651
    Abstract: A method for communicating data packets is provided that includes receiving a data packet at a first processor. A packet handle and interface handle are attached to the data packet. The packet handle, interface handle, and data packet are communicated to a second processor. A plurality of data packets that are destined for the same output are multiplexed. At least one packet handle, one interface handle, and the multiplexed data packet are communicated to the first processor, and the multiplexed data packet is output.
    Type: Grant
    Filed: February 19, 2007
    Date of Patent: November 10, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Dennis N. Blankenship, Glenn L. Preslar, Jr., Thomas W. Scheviak
  • Method and system for router redundancy in a wide area network
    Patent number: 7554903
    Abstract: A method for selecting an active router in a communication device includes providing multiple routers in the device, coupling the routers to a single physical link, monitoring a status for each of the routers, and selecting one of the routers as an active router by positioning its corresponding relay.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: June 30, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Dennis N. Blankenship, Michael H. Otto, Peter D. Beal, John M. Glotzer
  • System and method for monitoring noise associated with a communication link
    Patent number: 7453900
    Abstract: A method for monitoring noise associated with a communication link is provided that includes monitoring a plurality of communication links that facilitate a plurality of communication flows and determining whether an error parameter associated with a selected one or more of the communication links has exceeded a predefined threshold. An alert message may then be communicated to a next destination when the predefined threshold has been exceeded.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: November 18, 2008
    Assignee: Cisco Technology, Inc.
    Inventors: Walter L. Robinson, Peter D. Beal, Dennis N. Blankenship, Sumita Bose, Bohdan Matuszczak
  • Method and system for router redundancy in a wide area network
    Patent number: 7248560
    Abstract: A method for selecting an active router in a communication device includes providing multiple routers in the device, coupling the routers to a single physical link, monitoring a status for each of the routers, and selecting one of the routers as an active router by positioning its corresponding relay.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: July 24, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Dennis N. Blankenship, Michael H. Otto, Peter D. Beal, John M. Glotzer
  • System and method for selectively recovering frames in a communications environment
    Patent number: 7237182
    Abstract: A method for selective recovery in a communications environment is provided that includes building a recognizable bit pattern into one or more subframes that are associated with a communication flow. One or more of the subframes may be positioned into a superframe. In cases where one or more errors are present in the superframe, the superframe may be demultiplexed such that one or more of the subframes included in the superframe are analyzed and then discarded or forwarded based on the presence of one or more of the errors.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: June 26, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Alain Charles Brainos, II, Dennis N. Blankenship, John S. Morris, Walter L. Robinson
  • System and method for communicating data packets
    Patent number: 7180911
    Abstract: A method for communicating data packets is provided that includes receiving a data packet at a first processor. A packet handle and interface handle are attached to the data packet. The packet handle, interface handle, and data packet are communicated to a second processor. A plurality of data packets that are destined for the same output are multiplexed. At least one packet handle, one interface handle, and the multiplexed data packet are communicated to the first processor, and the multiplexed data packet is output.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: February 20, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Dennis N. Blankenship, Glenn L. Preslar, Jr., Thomas W. Scheviak
  • System and method for monitoring noise associated with a communication link
    Publication number: 20040193964
    Abstract: A method for monitoring noise associated with a communication link is provided that includes monitoring a plurality of communication links that facilitate a plurality of communication flows and determining whether an error parameter associated with a selected one or more of the communication links has exceeded a predefined threshold. An alert message may then be communicated to a next destination when the predefined threshold has been exceeded.
    Type: Application
    Filed: March 5, 2003
    Publication date: September 30, 2004
    Inventors: Walter L. Robinson, Peter D. Beal, Dennis N. Blankenship, Sumita Bose, Bohdan Matuszczak