Patents by Inventor Stephen D. Shew

Stephen D. Shew 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: 8942231
    Abstract: Call Control entities in a network communicate between themselves by amending call processing messages to include encrypted network information. As such, a call may be established whose path through the network is dependent on the paths of other calls. Information of a scope larger than a Call Controller normally possesses can, as a result of this communication, be made available to Call Controllers for constraining call establishment. This information could relate to other calls and connections associated with those other calls. The information may also relate to gateways in and to adjacent networks and the Call Controllers in the adjacent networks that are related to the current Call Controller.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: January 27, 2015
    Assignee: Ciena Corporation
    Inventors: Stephen D. Shew, Malcolm Betts, Erning E. Ye
  • Patent number: 8135846
    Abstract: Call Control entities in a network communicate between themselves by amending call processing messages to include encrypted network information. As such, a call may be established whose path through the network is dependent on the paths of other calls. Information of a scope larger than a Call Controller normally possesses can, as a result of this communication, be made available to Call Controllers for constraining call establishment. This information could relate to other calls and connections associated with those other calls. The information may also relate to gateways in and to adjacent networks and the Call Controllers in the adjacent networks that are related to the current Call Controller.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: March 13, 2012
    Assignee: Ciena Corporation
    Inventors: Stephen D. Shew, Malcolm Betts, Erning E. Ye
  • Patent number: 8005964
    Abstract: Call Control entities in a network communicate between themselves by amending call processing messages to include encrypted network information. As such, a call may be established whose path through the network is dependent on the paths of other calls. Information of a scope larger than a Call Controller normally possesses can, as a result of this communication, be made available to Call Controllers for constraining call establishment. This information could relate to other calls and connections associated with those other calls. The information may also relate to gateways in and to adjacent networks and the Call Controllers in the adjacent networks that are related to the current Call Controller.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: August 23, 2011
    Assignee: Ciena Corporation
    Inventors: Stephen D. Shew, Malcolm Betts, Erning E. Ye
  • Publication number: 20100189100
    Abstract: Call Control entities in a network communicate between themselves by amending call processing messages to include encrypted network information. As such, a call may be established whose path through the network is dependent on the paths of other calls. Information of a scope larger than a Call Controller normally possesses can, as a result of this communication, be made available to Call Controllers for constraining call establishment. This information could relate to other calls and connections associated with those other calls. The information may also relate to gateways in and to adjacent networks and the Call Controllers in the adjacent networks that are related to the current Call Controller.
    Type: Application
    Filed: March 19, 2010
    Publication date: July 29, 2010
    Inventors: Stephen D. Shew, Malcolm Betts, Erning E. Ye
  • Publication number: 20100174905
    Abstract: Call Control entities in a network communicate between themselves by amending call processing messages to include encrypted network information. As such, a call may be established whose path through the network is dependent on the paths of other calls. Information of a scope larger than a Call Controller normally possesses can, as a result of this communication, be made available to Call Controllers for constraining call establishment. This information could relate to other calls and connections associated with those other calls. The information may also relate to gateways in and to adjacent networks and the Call Controllers in the adjacent networks that are related to the current Call Controller.
    Type: Application
    Filed: March 19, 2010
    Publication date: July 8, 2010
    Inventors: Stephen D. Shew, Malcolm Betts, Erning E. Ye
  • Publication number: 20100174898
    Abstract: Call Control entities in a network communicate between themselves by amending call processing messages to include encrypted network information. As such, a call may be established whose path through the network is dependent on the paths of other calls. Information of a scope larger than a Call Controller normally possesses can, as a result of this communication, be made available to Call Controllers for constraining call establishment. This information could relate to other calls and connections associated with those other calls. The information may also relate to gateways in and to adjacent networks and the Call Controllers in the adjacent networks that are related to the current Call Controller.
    Type: Application
    Filed: March 19, 2010
    Publication date: July 8, 2010
    Inventors: Stephen D. Shew, Malcolm Betts, Erning E. Ye
  • Patent number: 7711828
    Abstract: Call Control entities in a network communicate between themselves by amending call processing messages to include encrypted network information. As such, a call may be established whose path through the network is dependent on the paths of other calls. Information of a scope larger than a Call Controller normally possesses can, as a result of this communication, be made available to Call Controllers for constraining call establishment. This information could relate to other calls and connections associated with those other calls. The information may also relate to gateways in and to adjacent networks and the Call Controllers in the adjacent networks that are related to the current Call Controller.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: May 4, 2010
    Assignee: Nortel Networks Limited
    Inventors: Stephen D. Shew, Malcolm Betts, Erning E. Ye
  • Patent number: 7580401
    Abstract: A server for use in a communications network implementing a routing function that serves multiple client NEs. The server interacts with a database storing true topology information corresponding to the client NEs. The routing function uses the true topology information in performing routing operations on behalf of the client NEs.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: August 25, 2009
    Assignee: Nortel Networks Limited
    Inventors: Stephen D. Shew, Donald Penney
  • Publication number: 20030233456
    Abstract: Call Control entities in a network communicate between themselves by amending call processing messages to include encrypted network information. As such, a call may be established whose path through the network is dependent on the paths of other calls. Information of a scope larger than a Call Controller normally possesses can, as a result of this communication, be made available to Call Controllers for constraining call establishment. This information could relate to other calls and connections associated with those other calls. The information may also relate to gateways in and to adjacent networks and the Call Controllers in the adjacent networks that are related to the current Call Controller.
    Type: Application
    Filed: June 14, 2002
    Publication date: December 18, 2003
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Stephen D. Shew, Malcolm Betts, Erning E. Ye
  • Patent number: 6530032
    Abstract: The present invention provides layer one, two and three (L1/L2/L3) Integration and L1 cut-through path utilization in an apparatus and method of fault recovery. A switch combines an IP router with L2 capabilities, and an L1 cross connect (optical or electrical). A network of such switches is configured with label switched paths (LSP) that correspond to layer 1 (L1) cut-through paths. The layer 2 (L2) cut-through path is over laid on the L1 cut-through path and the L2 cut-through path is used for IP data flows. Preferably, the L2 cut-through paths are defined as label switched paths (LSP) and the L1 cut-through paths are each an end-to-end path established with L1 cross connects associated with each switch.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: March 4, 2003
    Assignee: Nortel Networks Limited
    Inventors: Stephen D. Shew, Kenneth G. Hayward