Patents by Inventor Mark Duffy

Mark Duffy 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).

  • Publication number: 20120158921
    Abstract: Systems and methods for user device registration are disclosed. In certain embodiments, at least a first edge device in a group of edge devices enters a mass-restart mode. The first edge device receives a request for registration from a user device and determines whether the user device is currently registered through the first edge device. The first edge device generates a notification associated with the user device if the user device is not currently registered through the first edge device. A second edge device in the group of edge devices receives the notification and determines whether the user device is currently registered through the second edge device based on the notification. Registration information about the user device is deleted from the second edge device if the user device is currently registered through the second edge device.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 21, 2012
    Inventors: Tolga Asveren, Mark Duffy
  • Publication number: 20110215730
    Abstract: A lighting system includes a plurality of fixtures, wherein each fixture includes a plurality of fluorescent lamps. A dimming ballast is operatively coupled to each fixture, each dimming ballast receives power from an outside source that is delivered to the fluorescent lamps within each corresponding fixture. A control module communicates with each dimming ballast, the control module receives a lighting level from an outside source, determines the most power efficient lighting solution and outputs a control signal to each dimming ballast related to the light output level of each lamp within each fixture.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 8, 2011
    Inventors: Mark Duffy, Bruce Roberts, Jeffrey Plaskon, Lazlo Balazs, Istvan Maros, Avi Shertok
  • Patent number: 8015268
    Abstract: A synchronization scheme is provided that includes querying a managed device to obtain an initial device state, synchronizing the device state in a plurality of management processes, detecting a change in the initial device state, and maintaining a synchronized current device state between the managed device and the plurality of management processes.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: September 6, 2011
    Assignee: Genband US LLC
    Inventors: Mark Duffy, Ephraim Ezekiel, Robin Iddon, Eric Schott, Aruna Thirumalai, Chris Cook
  • Patent number: 7940657
    Abstract: Described are computer-based methods and apparatuses, including computer program products, for identifying attackers on a network. A data packet is filtered by a multi-tiered filtering and transmission system. Data packets matching the first tier filter are discarded. Data packets matching the second tier filter are transmitted to an output module based on a criterion. Data packets in the third tier filter are hashed into bins and data packets matching an entry in the bin are transmitted to the output module based on a criterion for the bin. Data packets in the fourth tier transmission system are transmitted to the output module based on a criterion. Data packets that do not meet the criterion for transmission to the output module are transmitted to an attack identification module which analyzes the data packets to identify attacks.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: May 10, 2011
    Assignee: Sonus Networks, Inc.
    Inventors: John A. Perreault, Shaun Jaikarran Bharrat, Mark Duffy, Gary Robert McCarthy, Jian Yang, Shiping Li
  • Patent number: 7804774
    Abstract: Described are computer-based methods and apparatuses, including computer program products, for scalable filtering and policing mechanism for protecting user traffic in a network. A data packet is filtered by a multi-tiered filtering and transmission system. Data packets matching the first tier filter are discarded. Data packets matching the second tier filter are transmitted to an output module based on a criterion. Data packets in the third tier filter are hashed into bins and data packets matching an entry in the bin are transmitted to the output module based on a criterion for the bin. Data packets in the fourth tier transmission system are transmitted to the output module based on a criterion. Data packets that do not meet the criterion for transmission to the output module are transmitted to an attack identification module which analyzes the data packets to identify attacks.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: September 28, 2010
    Assignee: Sonus Networks, Inc.
    Inventors: Jian Yang, Shiping Li, Mark Duffy, Shaun Jaikarran Bharrat
  • Patent number: 7672336
    Abstract: Described are computer-based methods and apparatuses, including computer program products, for filtering and policing for defending against denial of service attacks on a network. A data packet is filtered by a multi-tiered filtering and transmission system. Data packets matching the first tier filter are discarded. Data packets matching the second tier filter are transmitted to an output module based on a criterion. Data packets in the third tier filter are hashed into bins and data packets matching an entry in the bin are transmitted to the output module based on a criterion for the bin. Data packets in the fourth tier transmission system are transmitted to the output module based on a criterion. Data packets that do not meet the criterion for transmission to the output module are transmitted to an attack identification module which analyzes the data packets to identify attacks.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: March 2, 2010
    Assignee: Sonus Networks, Inc.
    Inventors: Shaun Jaikarran Bharrat, Mark Duffy, Ronald V. Grippo, Shiping Li, John A. Perreault, Jian Yang
  • Publication number: 20080134328
    Abstract: Described are computer-based methods and apparatuses, including computer program products, for scalable filtering and policing mechanism for protecting user traffic in a network. A data packet is filtered by a multi-tiered filtering and transmission system. Data packets matching the first tier filter are discarded. Data packets matching the second tier filter are transmitted to an output module based on a criterion. Data packets in the third tier filter are hashed into bins and data packets matching an entry in the bin are transmitted to the output module based on a criterion for the bin. Data packets in the fourth tier transmission system are transmitted to the output module based on a criterion. Data packets that do not meet the criterion for transmission to the output module are transmitted to an attack identification module which analyzes the data packets to identify attacks.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    Applicant: Sonus Networks
    Inventors: Jian Yang, Shiping Li, Mark Duffy, Shaun Jaikarran Bharrat
  • Publication number: 20080134327
    Abstract: Described are computer-based methods and apparatuses, including computer program products, for filtering and policing for defending against denial of service attacks on a network. A data packet is filtered by a multi-tiered filtering and transmission system. Data packets matching the first tier filter are discarded. Data packets matching the second tier filter are transmitted to an output module based on a criterion. Data packets in the third tier filter are hashed into bins and data packets matching an entry in the bin are transmitted to the output module based on a criterion for the bin. Data packets in the fourth tier transmission system are transmitted to the output module based on a criterion. Data packets that do not meet the criterion for transmission to the output module are transmitted to an attack identification module which analyzes the data packets to identify attacks.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    Applicant: Sonus Networks
    Inventors: Shaun Jaikarran Bharrat, Mark Duffy, Ronald V. Grippo, Shiping Li, John A. Perreault, Jian Yang
  • Publication number: 20080134329
    Abstract: Described are computer-based methods and apparatuses, including computer program products, for identifying attackers on a network. A data packet is filtered by a multi-tiered filtering and transmission system. Data packets matching the first tier filter are discarded. Data packets matching the second tier filter are transmitted to an output module based on a criterion. Data packets in the third tier filter are hashed into bins and data packets matching an entry in the bin are transmitted to the output module based on a criterion for the bin. Data packets in the fourth tier transmission system are transmitted to the output module based on a criterion. Data packets that do not meet the criterion for transmission to the output module are transmitted to an attack identification module which analyzes the data packets to identify attacks.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    Applicant: Sonus Networks
    Inventors: John A. Perreault, Shaun Jaikarran Bharrat, Mark Duffy, Gary Robert McCarthy, Jian Yang, Shiping Li
  • Publication number: 20060200793
    Abstract: A synchronization scheme is provided that includes querying a managed device to obtain an initial device state, synchronizing the device state in a plurality of management processes, detecting a change in the initial device state, and maintaining a synchronized current device state between the managed device and the plurality of management processes.
    Type: Application
    Filed: February 27, 2006
    Publication date: September 7, 2006
    Inventors: Mark Duffy, Ephraim Ezekiel, Robin Iddon, Eric Schott, Aruna Thirumalai, Chris Cook
  • Patent number: 7008433
    Abstract: This invention relates to a mixing and delivery device suitable for delivering injectable biomaterials, and to preferred bone cement formulations.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: March 7, 2006
    Assignee: DePuy Acromed, Inc.
    Inventors: John C. Voellmicke, Paul J. Mraz, Robert Sommerich, John Buonanno, Francis Peterson, Todd Bjork, Mark Duffy
  • Publication number: 20060019760
    Abstract: A swing apparatus comprises a support stand, a swing supported with respect to the support stand to oscillate back and forth along a swing arc about a pivot axis, and a drive assembly that operates to oscillate the swing. Various components of the drive assembly are coupled to the swing to oscillate therewith about the pivot axis. The drive assembly has a pair of drive members that periodically engage portions of the support stand resulting in forces being imparted on the swing to move the swing.
    Type: Application
    Filed: March 28, 2005
    Publication date: January 26, 2006
    Inventors: Tdeusz Keska, Mark Duffy, Christopher Briden, Chinawut Paesang
  • Publication number: 20050125033
    Abstract: A wound closure apparatus is provided. The apparatus includes a pair of clamp arms, and a pair of blades, each having a gripping surface, coupled to the clamp arm.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 9, 2005
    Inventors: Karen McNally-Heintzelman, Mark Duffy, Jeffrey Bloom, Douglas Heintzelman
  • Publication number: 20050125015
    Abstract: A tissue handling apparatus for handling biological tissue is provided. The apparatus includes a handle, at least one clamp, and at least one actuator.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 9, 2005
    Inventors: Karen McNally-Heintzelman, Mark Duffy, Jeffrey Bloom, Douglas Heintzelman
  • Publication number: 20050004599
    Abstract: The present invention provides a non-light activated adhesive composite, method, and system suitable for medical and surgical applications. The composite includes a scaffold and a non-light activated adhesive. The scaffold and the non-light activated adhesive include biological, biocompatible, or biodegradable materials.
    Type: Application
    Filed: June 30, 2003
    Publication date: January 6, 2005
    Inventors: Karen McNally-Heintzelman, Douglas Heintzelman, Jeffrey Bloom, Mark Duffy
  • Publication number: 20030182472
    Abstract: A synchronization scheme is provided that includes querying a managed device to obtain an initial device state, synchronizing the device state in a plurality of management processes, detecting a change in the initial device state, and maintaining a synchronized current device state between the managed device and the plurality of management processes.
    Type: Application
    Filed: March 20, 2002
    Publication date: September 25, 2003
    Inventors: Mark Duffy, Ephraim Ezekiel, Robin Iddon, Eric Schott, Aruna Thirumalai, Chris Cook
  • Publication number: 20030149786
    Abstract: A method and system include collecting information in a network device, determining in the network device when to send a subset of the collected information to a collection system, and determining in the network device a subset of the collected information to be transmitted at a given time.
    Type: Application
    Filed: February 6, 2002
    Publication date: August 7, 2003
    Inventors: Mark Duffy, Robin Iddon, Andi Abes
  • Patent number: 6594704
    Abstract: A method of maintaining multiple routing tables within a global table of a network router including the steps of providing the router with a route table generator to maintain the global table, and a forwarding engine to perform table lookups, the performing of table lookups in one of the multiple routing tables of the global table using a key, the key representing an index into the one of said multiple routing tables within said global table, the key created by combining a virtual private network identification (VPN ID) and an address prefix, and maintaining a plurality of table entries in the global table by using the key as a pointer to one of said table entries.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: July 15, 2003
    Assignee: Quarry Technologies
    Inventors: Michael Birenback, Mark Duffy, Sanjay Krishnan
  • Publication number: 20020156483
    Abstract: This invention relates to a mixing and delivery device suitable for delivering injectable biomaterials, and to preferred bone cement formulations.
    Type: Application
    Filed: February 15, 2001
    Publication date: October 24, 2002
    Inventors: John C. Voellmicke, Paul J. Mraz, Robert Sommerich, John Buonanno, Nolene Harris, Neil Watkins, Rick Kowalski, Francis Peterson, Todd Bjork, Mark Duffy