Patents by Inventor Grace Yeung

Grace Yeung 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: 8532055
    Abstract: Apparatus, and an associated method, for facilitating routing of data in a packet radio communication system. A clone list is downloaded to the mobile node and stored at a clone list depository thereat. The clone list includes a plurality of entries, each of which provides routing information needed to route data when the mobile node is positioned within coverage areas encompassed by differing networks. A determination is made whether the clone list includes appropriate routing information to route a data packet sent by the mobile node positioned in a particular area encompassed by a particular network portion. If the clone list includes an entry containing such information, the need separately to request such information is obviated.
    Type: Grant
    Filed: December 13, 2008
    Date of Patent: September 10, 2013
    Assignee: BlackBerry Limited
    Inventors: Shahid Chaudry, Grace Yeung, Ian Michael Patterson, David Anthony Bajar, Darcy Richard Phipps
  • Patent number: 7804809
    Abstract: Method, and associated apparatus, for operating a hybrid access terminal operable in a CDMA 1x/EVDO hybrid communication session system. The hybrid access terminal is operable to communicate pursuant to an EVDO communication session and to a PPP communication session. The opening and closing of the communication sessions are independent of one another. Opening of one session does not require opening of another of the sessions. And, closing of one of the sessions does not require closing of the other of the sessions.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: September 28, 2010
    Assignee: Research In Motion Limited
    Inventors: Asif Hossain, Shailesh Kaul, Muhammad Khaledul Islam, Suresh Periyalwar, Grace Yeung, Shahid Chaudry
  • Publication number: 20100111064
    Abstract: Method, and associated apparatus, for operating a hybrid access terminal operable in a CDMA 1x/EVDO hybrid communication session system. The hybrid access terminal is operable to communicate pursuant to an EVDO communication session and to a PPP communication session. The opening and closing of the communication sessions are independent of one another. Opening of one session does not require opening of another of the sessions. And, closing of one of the sessions does not require closing of the other of the sessions.
    Type: Application
    Filed: January 6, 2010
    Publication date: May 6, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: ASIF HOSSAIN, SHAILESH KAUL, MUHAMMAD KHALEDUL ISLAM, SURESH PERIYALWAR, GRACE YEUNG, SHAHID CHAUDRY
  • Patent number: 7656852
    Abstract: Method, and associated apparatus, for operating a hybrid access terminal operable in a CDMA 1x/EVDO hybrid communication session system. The hybrid access terminal is operable to communicate pursuant to an EVDO communication session and to a PPP communication session. The opening and closing of the communication sessions are independent of one another. Opening of one session does not require opening of another of the sessions. And, closing of one of the sessions does not require closing of the other of the sessions.
    Type: Grant
    Filed: December 13, 2008
    Date of Patent: February 2, 2010
    Assignee: Research In Motion Limited
    Inventors: Asif Hossain, Shailesh Kaul, Muhammad Khaledul Islam, Suresh Periyalwar, Grace Yeung, Shahid Chaudry
  • Publication number: 20090103505
    Abstract: Method, and associated apparatus, for operating a hybrid access terminal operable in a CDMA 1x/EVDO hybrid communication session system. The hybrid access terminal is operable to communicate pursuant to an EVDO communication session and to a PPP communication session. The opening and closing of the communication sessions are independent of one another. Opening of one session does not require opening of another of the sessions. And, closing of one of the sessions does not require closing of the other of the sessions.
    Type: Application
    Filed: December 13, 2008
    Publication date: April 23, 2009
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: ASIF HOSSAIN, SHAILESH KAUL, MUHAMMAD KHALEDUL ISLAM, SURESH PERIYALWAR, GRACE YEUNG, SHAHID CHAUDRY
  • Publication number: 20090098877
    Abstract: Apparatus, and an associated method, for facilitating routing of data in a packet radio communication system. A clone list is downloaded to the mobile node and stored at a clone list depository thereat. The clone list includes a plurality of entries, each of which provides routing information needed to route data when the mobile node is positioned within coverage areas encompassed by differing networks. A determination is made whether the clone list includes appropriate routing information to route a data packet sent by the mobile node positioned in a particular area encompassed by a particular network portion. If the clone list includes an entry containing such information, the need separately to request such information is obviated.
    Type: Application
    Filed: December 13, 2008
    Publication date: April 16, 2009
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: SHAHID CHAUDRY, GRACE YEUNG, IAN MICHAEL PATTERSON, DAVID ANTHONY BAJAR, DARCY RICHARD PHIPPS
  • Patent number: 7492746
    Abstract: Method, and associated apparatus, for operating a hybrid access terminal operable in a CDMA 1×/EVDO hybrid communication session system. The hybrid access terminal is operable to communicate pursuant to an EVDO communication session and to a PPP communication session. The opening and closing of the communication sessions are independent of one another. Opening of one session does not require opening of another of the sessions. And, closing of one of the sessions does not require closing of the other of the sessions.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: February 17, 2009
    Assignee: Research In Motion Limited
    Inventors: Asif Hossain, Shailesh Kaul, Muhammad Khaledul Islam, Suresh Periyalwar, Grace Yeung, Shahid Chaudry
  • Patent number: 7466984
    Abstract: Apparatus, and an associated method, for facilitating routing of data in a packet radio communication system. A clone list is downloaded to the mobile node and stored at a clone list depository thereat. The clone list includes a plurality of entries, each of which provides routing information needed to route data when the mobile node is positioned within coverage areas encompassed by differing networks. A determination is made whether the clone list includes appropriate routing information to route a data packet sent by the mobile node positioned in a particular area encompassed by a particular network portion. If the clone list includes an entry containing such information, the need separately to request such information is obviated.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: December 16, 2008
    Assignee: Research In Motion Limited
    Inventors: Shahid Chaudry, Grace Yeung, Ian Michael Patterson, David Anthony Bajar, Darcy Richard Phipps
  • Publication number: 20080056226
    Abstract: A system and method for establishing and maintaining an “always-on” data connection to a wireless network through the use of a back off timer and a service check timer is disclosed. The back off timer is initialized to a determined value when a connection is not established. When the timer expires, a connection attempt is made. As further connection attempts are made, the back off timer is set to ever-increasing values. When the data connection is established, the service check timer is initialized. The data connection status is determined at the expiry of the service check timer. When, at the expiry of the service check timer, the data connection is determined to be lost, the connection method is employed.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 6, 2008
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Wen ZHAO, Shahid CHAUDRY, T.L. PLESTID, Hao XUE, Grace YEUNG, Clifford YANOSHEWSKI
  • Publication number: 20070121566
    Abstract: A method and apparatus of optimizing transitioning between EVDO and CDMA 1X systems in a hybrid access terminal, the method having the steps of preventing a reconnect data call from being sent from the hybrid access terminal. The preventing step including checking whether a transition between an EVDO and a CDMA 1X system is successful; and if not blocking the data call, and/or checking whether an EVDO received signal strength indication is greater than or equal to a receiver sensitivity on the hybrid access terminal; and if yes, allowing the hybrid access terminal to connect to the EVDO system, and/or delaying a connection timer for connecting to the EVDO system and/or applying fast dormancy to the hybrid access terminal in an EVDO state.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 31, 2007
    Inventors: Shahid Chaudry, Grace Yeung, Asif Hossain, Muhammad Islam, Kylie Pratt
  • Publication number: 20070104161
    Abstract: Method, and associated apparatus, for operating a hybrid access terminal operable in a CDMA 1x/EVDO hybrid communication session system. The hybrid access terminal is operable to communicate pursuant to an EVDO communication session and to a PPP communication session. The opening and closing of the communication sessions are independent of one another. Opening of one session does not require opening of another of the sessions. And, closing of one of the sessions does not require closing of the other of the sessions.
    Type: Application
    Filed: November 10, 2005
    Publication date: May 10, 2007
    Inventors: Asif Hossain, Shailesh Kaul, Muhammad Islam, Suresh Periyalwar, Grace Yeung, Shahid Chaudry
  • Publication number: 20070097923
    Abstract: A method and apparatus of optimizing transitioning between EVDO and CDMA 1X systems in a hybrid access terminal, the method having the steps of: preventing a reconnect data call from being sent from the hybrid access terminal. The preventing step including checking whether a transition between an EVDO and a CDMA 1X system is successful; and if not blocking the data call, and/or checking whether an EVDO received signal strength indication is greater than or equal to a receiver sensitivity on the hybrid access terminal; and if yes, allowing the hybrid access terminal to connect to the EVDO system, and/or delaying a connection timer for connecting to the EVDO system and/or applying fast dormancy to the hybrid access terminal in an EVDO state.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 3, 2007
    Inventors: Shahid Chaudry, Grace Yeung, Asif Hossain, Muhammad Islam, Kylie Pratt
  • Publication number: 20070098147
    Abstract: A method and apparatus of optimizing transitioning between EVDO and CDMA 1X systems in a hybrid access terminal, the method having the steps of: detecting an EVDO received signal at the hybrid access terminal; and delaying a connection timer at the hybrid access terminal for connecting to the EVDO system. The apparatus being a hybrid access terminal adapted for optimizing transitioning between EVDO and CDMA 1X systems, the hybrid access terminal having a radio subsystem adapted to communicate with a network; a radio processor having a digital signal processor and adapted to interact with the radio subsystem; memory; a user interface; a processor adapted to run user applications and interact with the memory, the radio and the user interface and adapted to run applications, the hybrid access terminal characterized by having means for: detecting an EVDO received signal at the hybrid access terminal; and delaying a connection timer at the hybrid access terminal for connecting to the EVDO system.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 3, 2007
    Inventors: Shahid Chaudry, Grace Yeung, Asif Hossain, Muhammad Islam, Kylie Pratt
  • Publication number: 20060063544
    Abstract: A system and method for establishing and maintaining an “always-on” data connection to a wireless network through the use of a back off timer and a service check timer is disclosed. The back off timer is initialized to a determined value when a connection is not established. When the timer expires, a connection attempt is made. As further connection attempts are made, the back off timer is set to ever-increasing values. When the data connection is established, the service check timer is initialized. The data connection status is determined at the expiry of the service check timer. When, at the expiry of the service check timer, the data connection is determined to be lost, the connection method is employed.
    Type: Application
    Filed: June 16, 2003
    Publication date: March 23, 2006
    Applicant: Research In Motion Limited
    Inventors: Wen Zhao, Shahid Chaudry, Trevor Plestid, Hao Xue, Grace Yeung, Clifford Yanoshewshi
  • Publication number: 20050185617
    Abstract: Apparatus, and an associated method, for facilitating routing of data in a packet radio communication system. A clone list is downloaded to the mobile node and stored at a clone list depository thereat. The clone list includes a plurality of entries, each of which provides routing information needed to route data when the mobile node is positioned within coverage areas encompassed by differing networks. A determination is made whether the clone list includes appropriate routing information to route a data packet sent by the mobile node positioned in a particular area encompassed by a particular network portion. If the clone list includes an entry containing such information, the need separately to request such information is obviated.
    Type: Application
    Filed: February 19, 2004
    Publication date: August 25, 2005
    Inventors: Shahid Chaudry, Grace Yeung, Ian Patterson, David Bajar, Darcy Phipps