Patents by Inventor Liam Casey

Liam Casey 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).

  • Patent number: 7649881
    Abstract: Methods and systems for extending the IMS/SIP architecture of the NGN to provide QoS service to generic bearer flows. More particularly, a method is provided for establishing an bearer end-to-end path of a communication session in a multi-domain communication network in which an out of band signalling protocol is used to establish communications sessions. The method comprises receiving an out-of-band signalling message including information representative of at least an opposite end point of a first bearer segment of the end-to-end path. The information is used to define a cross-connect mapping through a node of the network between respective local endpoints of the first bearer segment and a second bearer segment hosted by the node. Information representative of the cross-connect mapping is then inserted into the out-of-band signalling message, and the out-of-band signalling message forwarded.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: January 19, 2010
    Assignee: Nortel Networks Limited
    Inventor: Liam Casey
  • Patent number: 7463584
    Abstract: A method and system for providing a virtual private communication network to transport customer data between a set of customer devices coupled to a provider network. A committed information rate is advertised to a provider tandem. The provider tandem determines whether sufficient network resources exist to successfully transport to a destination customer device all offered data from the set of customer devices.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: December 9, 2008
    Assignee: Nortel Networks Limited
    Inventors: David Allan, Nigel Bragg, Liam Casey, Jerome Chiabaut
  • Publication number: 20080154677
    Abstract: Systems and methods for tracking various goods/services are disclosed. Status information is provided from a plurality of nodes on a supply chain to a database where it is stored in real-time. Suppliers, consumers, and intermediaries can access the information through a display that graphically and intuitively represents each of the plurality of nodes and the status data. By providing an end-to-end view of goods/services, embodiments of the invention allow users to efficiently track and manage various supply, procurement, and business processes.
    Type: Application
    Filed: December 4, 2007
    Publication date: June 26, 2008
    Inventor: Liam Casey
  • Publication number: 20080144602
    Abstract: Methods and systems for extending the IMS/SIP architecture of the NGN to provide QoS service to generic bearer flows. Providing QoS treatment, of a bearer flow within a communication session established between two end devices using a different in-band signalling protocol is supported. A Signalling Inter-Working Function (SIWF) is provided in a path of the in-band signalling between the two end devices. The SIWF is operative to: detect at least a signal state of the in-band signalling; and establish a communications session with QoS treatment of bearer flows spanning at least a portion of an end-to-end path between the two end points, based on the detected signal state.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 19, 2008
    Applicant: NORTEL NETWORKS LIMITED
    Inventor: Liam Casey
  • Patent number: 7260097
    Abstract: A network can be organized for providing virtual private LAN segment (VPLS) services to customers into a network core and an associated number of logical provider edges. Each logical provider edge is partitioned into a plurality of Edge-PEs and a Core-PE. Customers connect to the Edge-PE. The Edge-PE maintains a context (a virtual bridge) for each customer VPLS it serves, VPLS service is realized by a full mesh of so called virtual circuit (VC) tunnels between virtual bridge ports. Each VC tunnel is identified by 3 VC labels in each direction, the first label is used in the encapsulation of customer traffic from the ingress Edge-PE to the ingress Core-PE, the second from ingress Core-PE to egress Core-PE and the third from egress Core-PE to Egress Edge-PE. The mechanisms for the allocation of the label values to and how the label values are used provide a realization of VPLS service that is scalable and easy to administer.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: August 21, 2007
    Assignee: Nortel Networks Limited
    Inventor: Liam Casey
  • Publication number: 20060029032
    Abstract: A method and system for providing a virtual private communication network to transport customer data between a set of customer devices coupled to a provider network. A committed information rate is advertised to a provider tandem. The provider tandem determines whether sufficient network resources exist to successfully transport to a destination customer device all offered data from the set of customer devices.
    Type: Application
    Filed: August 3, 2004
    Publication date: February 9, 2006
    Inventors: David Allan, Nigel Bragg, Liam Casey, Jerome Chiabaut
  • Publication number: 20050271048
    Abstract: An Internet Priority Service (IPS) provides to authorized users priority access to communication over the Internet during emergencies. Transmission of data packets from an authorized user that accesses the IPS are given priority for transmission over the Internet. The level of priority given to a data packet depends on the type of application associated with the data packet. Each user or group of users may also be given a respective IPS level of priority. Furthermore, for a particular authorized user, access to the IPS may be limited to a specific number of application types, which for example do not have high bandwidth requirements. Assigning different priority levels as a function of application type and user or group of users, and limiting IPS access to specific application types allows efficient methods of emergency communication to be implemented over the Internet during emergencies.
    Type: Application
    Filed: June 4, 2004
    Publication date: December 8, 2005
    Inventor: Liam Casey
  • Publication number: 20050226219
    Abstract: A system for increasing the call capacity of an access point in a WLAN, allowing the number of WLAN phones that can be supported to be increased. The system determines whether a maximum total voice path delay would be exceeded if the packetization delay is increased for packets in a call. In the event that the packetization delay can be increased without the total delay exceeding the maximum delay, the disclosed system increases the size of packets used in the call, if all participating devices can process the increased packet size. The maximum delay may be predetermined, and reflect a maximum delay that cannot be exceeded without adversely impacting the voice quality of a call. If the two end points for a call are determined to be physically “local” to each other, packetization delay for the call may be increased based on the assumption that the increased packetization delay will not decrease the voice quality of the call.
    Type: Application
    Filed: April 12, 2004
    Publication date: October 13, 2005
    Inventors: Liam Casey, David Allan, Jerome Chiabaut
  • Publication number: 20050171805
    Abstract: A procurement management system automates aspects of procurement management and allows users to send and track procurement and good/service requests. The system receives procurement requests and automatically generates goods/services requests to be provided to suppliers in order to meet the needs of the procurement request. Once suppliers have provided replies to the requests, the system formulates bids or submissions to the procurement requests based on the replies.
    Type: Application
    Filed: December 22, 2004
    Publication date: August 4, 2005
    Inventors: Liam Casey, Dara Murphy
  • Publication number: 20050021425
    Abstract: Systems and methods for tracking various goods/services are disclosed. Status information is provided from a plurality of nodes on a supply chain to a database where it is stored in real-time. Suppliers, consumers, and intermediaries can access the information through a display that graphically and intuitively represents each of the plurality of nodes and the status data. By providing an end-to-end view of goods/services, embodiments of the invention allow users to efficiently track and manage various supply, procurement, and business processes.
    Type: Application
    Filed: May 14, 2004
    Publication date: January 27, 2005
    Inventor: Liam Casey
  • Publication number: 20030142674
    Abstract: A network can be organized for providing virtual private LAN segment (VPLS) services to customers into a network core and an associated number of logical provider edges. Each logical provider edge is partitioned into a plurality of Edge-PEs and a Core-PE. Customers connect to the Edge-PE. The Edge-PE maintains a context (a virtual bridge) for each customer VPLS it serves, VPLS service is realized by a full mesh of so called virtual circuit (VC) tunnels between virtual bridge ports. Each VC tunnel is identified by 3 VC labels in each direction, the first label is used in the encapsulation of customer traffic from the ingress Edge-PE to the ingress Core-PE, the second from ingress Core-PE to egress Core-PE and the third from egress Core-PE to Egress Edge-PE. The mechanisms for the allocation of the label values to and how the label values are used provide a realization of VPLS service that is scalable and easy to administer.
    Type: Application
    Filed: October 8, 2002
    Publication date: July 31, 2003
    Applicant: NORTEL NETWORKS LIMITED
    Inventor: Liam Casey