Patents by Inventor Elaine Quah

Elaine Quah 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).

  • Session initiation from application servers in an IP multimedia subsystem
    Patent number: 8325707
    Abstract: The present invention provides a technique where application servers can initiate sessions within the IMS network by initially sending session initiation messages to the I-CSCF. By routing the session initiation messages to the I-CSCF, the application servers need not directly access the HSSs in order to initiate sessions. Upon receiving a session initiation message from an application server, the I-CSCF may access the HSS to identify an S-CSCF to use for session control and then route the session initiation message to that S-CSCF. The S-CSCF may then access the same or different HSS to determine how to further route the session initiation message to establish the session. The session initiation message may be routed toward other S-CSCFs en route to the appropriate user elements. The session may be a session established between user elements or between the application server and a user element.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: December 4, 2012
    Assignee: Rockstar Consortium US LP
    Inventors: Elaine Quah, Michael Leeder, Bryn Rahm
  • Session initiation from application servers in an IP multimedia subsystem
    Publication number: 20060242310
    Abstract: The present invention provides a technique where application servers can initiate sessions within the IMS network by initially sending session initiation messages to the I-CSCF. By routing the session initiation messages to the I-CSCF, the application servers need not directly access the HSSs in order to initiate sessions. Upon receiving a session initiation message from an application server, the I-CSCF may access the HSS to identify an S-CSCF to use for session control and then route the session initiation message to that S-CSCF. The S-CSCF may then access the same or different HSS to determine how to further route the session initiation message to establish the session. The session initiation message may be routed toward other S-CSCFs en route to the appropriate user elements. The session may be a session established between user elements or between the application server and a user element.
    Type: Application
    Filed: April 21, 2006
    Publication date: October 26, 2006
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Elaine Quah, Michael Leeder, Bryn Rahm