Patents by Inventor Grace T. Y. Yeung
Grace T. Y. 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).
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Patent number: 8655362Abstract: 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: GrantFiled: August 6, 2012Date of Patent: February 18, 2014Assignee: BlackBerry LimitedInventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Publication number: 20120294286Abstract: 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: ApplicationFiled: August 6, 2012Publication date: November 22, 2012Applicant: RESEARCH IN MOTION LIMITEDInventors: Shahid Rasul Chaudry, Grace T.Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Patent number: 8260295Abstract: 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: GrantFiled: July 19, 2010Date of Patent: September 4, 2012Assignee: Research In Motion LimitedInventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Publication number: 20120208538Abstract: 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: ApplicationFiled: April 25, 2012Publication date: August 16, 2012Applicant: RESEARCH IN MOTION LIMITEDInventors: Shahid Rasul Chaudry, Grace T.Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Patent number: 8185110Abstract: A method and apparatus of optimizing transitioning between EVDO and CDMA 1× 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 1× 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: GrantFiled: April 6, 2010Date of Patent: May 22, 2012Assignee: Research In Motion LimitedInventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Patent number: 8121637Abstract: 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: GrantFiled: October 15, 2010Date of Patent: February 21, 2012Assignee: Research In Motion LimitedInventors: Wen Zhao, Shahid R. Chaudry, T. L. Trevor Plestid, Hao Xue, Grace T. Y. Yeung, Clifford W. Yanoshewski
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Publication number: 20110103381Abstract: 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: ApplicationFiled: January 12, 2011Publication date: May 5, 2011Applicant: RESEARCH IN MOTION LIMITEDInventors: Shahid Rasul Chaudry, Grace T.Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Patent number: 7894375Abstract: 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: GrantFiled: October 31, 2005Date of Patent: February 22, 2011Assignee: Research In Motion LimitedInventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Publication number: 20110034199Abstract: 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: ApplicationFiled: October 15, 2010Publication date: February 10, 2011Applicant: RESEARCH IN MOTION LIMITEDInventors: Wen ZHAO, Shahid R. CHAUDRY, T. L. Trevor PLESTID, Hao XUE, Grace T.Y. YEUNG, Clifford W. YANOSHEWSKI
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Publication number: 20100285804Abstract: 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: ApplicationFiled: July 19, 2010Publication date: November 11, 2010Applicant: RESEARCH IN MOTION LIMITEDInventors: Shahid Rasul Chaudry, Grace T .Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Patent number: 7818025Abstract: 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: GrantFiled: June 16, 2003Date of Patent: October 19, 2010Assignee: Research In Motion LimitedInventors: Wen Zhao, Shahid R. Chaudry, T. L. Trevor Plestid, Hao Xue, Grace T. Y. Yeung, Clifford W. Yanoshewski
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Publication number: 20100190523Abstract: A method and apparatus of optimizing transitioning between EVDO and CDMA 1× 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 1× 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: ApplicationFiled: April 6, 2010Publication date: July 29, 2010Applicant: RESEARCH IN MOTION LIMITEDInventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Patent number: 7761097Abstract: 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: GrantFiled: October 31, 2005Date of Patent: July 20, 2010Assignee: Research In Motion LimitedInventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Patent number: 7720482Abstract: 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: GrantFiled: October 31, 2005Date of Patent: May 18, 2010Assignee: Research In Motion LimitedInventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Patent number: 7715868Abstract: 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: GrantFiled: October 30, 2007Date of Patent: May 11, 2010Assignee: Research In Motion LimitedInventors: Wen Zhao, Shahid R. Chaudry, T. L. Trevor Plestid, Hao Xue, Grace T. Y. Yeung, Clifford W. Yanoshewski