Patents by Inventor Trevor Plestid

Trevor Plestid 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).

  • Publication number: 20080049741
    Abstract: Systems and methods for determining that a maximum number of IP sessions have been established are provided. There are instances when the mobile device transmits a request to the wireless network. According to an aspect, in the event that the maximum number of IP sessions is already established for the mobile device, the wireless network transmits a response indicating that the request cannot be fulfilled. The mobile device determines based on the response that the maximum number of IP sessions is already established, which allows the mobile device to determine the maximum number of IP sessions that can be supported so that IP sessions can be managed accordingly.
    Type: Application
    Filed: October 13, 2006
    Publication date: February 28, 2008
    Inventors: Jeff Wirtanen, Jin Kim, M. Khaledul Islam, Trevor Plestid
  • Publication number: 20080045277
    Abstract: A method and apparatus for sending an event from user equipment operating in a mobile network, the method comprising the steps of: monitoring whether an unrelated opportunistic event has occurred; and sending said event with said unrelated opportunistic event.
    Type: Application
    Filed: August 16, 2006
    Publication date: February 21, 2008
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Thomas Leonard Trevor PLESTID, Muhammad Khaledul ISLAM, Jeffrey WIRTANEN
  • Publication number: 20070087764
    Abstract: A method, apparatus and system for applying feature controls to features on a wireless device while the mobile is in a geographic area is provided. The wireless device receives instructions from a wireless network indicating which feature controls to apply. The wireless device determines that its position is within the geographic area and applies the feature controls.
    Type: Application
    Filed: October 19, 2005
    Publication date: April 19, 2007
    Inventors: Adrian Buckley, Khaledul Islam, Nicholas Alfano, Luis Estable, Trevor Plestid
  • Publication number: 20070085835
    Abstract: A method, and a handheld electronic device that implements the method, for selecting a number of languages used by a text disambiguation function executed by an electronic device during a text entry session. The method comprises determining a context for the text entry session, and responsive to the determining, selecting at least some of the number of languages used by the text disambiguation function during the text entry session.
    Type: Application
    Filed: October 14, 2005
    Publication date: April 19, 2007
    Inventors: Trevor Plestid, Dimitrios Prodanos
  • Publication number: 20070077914
    Abstract: A method (200) and an apparatus (300) in a wireless portable communication device (102) for maintaining appropriate authentication credentials required for a common data application in a current service network are provided. A method (400) in a wireless communication network (106) for providing current authentication credentials required for the common data application accessible through the wireless communication network (106) is also provided. The wireless portable communication device (102) has default authentication credentials required for the common data application in a default service network (106), receives (204) a data session configuration file including authentication credentials based upon a predetermined condition, prioritizes (206) between the default authentication credentials and the received authentication credentials, and uses (208) the authentication credentials having higher priority for the common data application in the current service network (110).
    Type: Application
    Filed: August 26, 2005
    Publication date: April 5, 2007
    Inventors: Thomas Trevor Plestid, Allan Lewis, Ian Patterson
  • Publication number: 20070015490
    Abstract: Systems and methods for operation upon a mobile device to handle a duress situation caused by another person. An input password is received from a user. The input password is decoded by the device. Responsive to the input password being a duress indication, a duress operation is performed to protect data on the mobile device.
    Type: Application
    Filed: July 14, 2005
    Publication date: January 18, 2007
    Inventors: Arun Munje, Trevor Plestid
  • Publication number: 20060281448
    Abstract: A method and improved mobile device for providing context sensitivity for application usage in a mobile device having multiple keyboards, the method comprising the steps of: receiving a keystroke at the mobile device; checking a state the mobile device is in; comparing the state the mobile device is in with a state an application expects; if the comparing step determines the state the mobile device is in differs from the state an application expects, and mapping the keystroke from the state the mobile device is in to a keystroke in the state the application expects.
    Type: Application
    Filed: June 13, 2005
    Publication date: December 14, 2006
    Inventors: Trevor Plestid, Arun Munje
  • Publication number: 20060111081
    Abstract: In one embodiment, a scheme is provided for assigning a personalized indicium to a mobile communications device which includes logic means operable to generate a temporary Personal Information Number (PIN) for transmitting in a request to a network node. Upon validating the request, a response is provided by the network node to the mobile communications device, the response including a permanent PIN assigned to the mobile communications device.
    Type: Application
    Filed: November 24, 2004
    Publication date: May 25, 2006
    Inventors: Graeme Whittington, Allan Lewis, James Godfrey, Christopher Smith, Arun Munje, Thomas Trevor Plestid, David Clark, Michal Rybak, Robbie Maurice, Marc Plumb
  • 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: 20060058052
    Abstract: Systems of methods for performing queued and moderated talk groups in a system featuring network provided half duplex communications talk group sessions. For queuing, rather than dropping a talk request from a user which is listening, the request is forwarded to the network and maintained in a list which is the used to grant access to the talk channel. For moderated talk groups, a wireless device is designated to be a moderator network device. The requests for the talk channel are then forwarded to the moderator network device. The moderator network device is equipped with functionality allowing a user of the device to select the order in which devices are granted the talk channel. In other implementations, meta-groups are provided, and rules of order for talk group sessions are implemented.
    Type: Application
    Filed: September 16, 2004
    Publication date: March 16, 2006
    Inventors: Trevor Plestid, Luis Pablo Estable
  • Publication number: 20040242191
    Abstract: A method and apparatus for of enhancing the probability of a successful emergency call completion and emergency callback on a mobile station in a network, the method comprising the steps of: during an emergency call attempt, monitoring whether the mobile station has received a non-voice service request from the network and, if yes, ignoring the non-voice service request. Further, during a callback period, monitoring whether the mobile station has received a service request from the network and, if yes, ignoring the service request if the service request is a non-voice service request that is anything but a position location service request. Further, during a callback period, monitoring whether a user attempts to initiate a non-voice service request that is anything but a position location service request, and if yes ignoring the non-voice service request.
    Type: Application
    Filed: January 21, 2004
    Publication date: December 2, 2004
    Inventors: Asif Hossain, M. Khaledul Islam, T.L. Trevor Plestid
  • Patent number: 6577616
    Abstract: Methods and apparatuses are provided for CDMA (code division multiple access) access availability to a large cell area, and for traffic channel establishment. A group of cell site modems are configured to look for access attempts generated in respective complete and/or sectorized circular or annular shaped areas centered at the center of the cell area, the areas collectively covering the cell area. To achieve this, each cell site modem has a local clock and the local clock within the first of the cell site modems is synchronized with a standard network time, and the local clock of each of the subsequent cell site modems is offset by a respective delay with respect to the standard network time which causes the cell site modem to search within its respective annular shaped area. A cell site modem is also made available as a traffic cell site modem and is operable to have its traffic acquisition search window centered at a location of an access attempt.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: June 10, 2003
    Assignee: Nortel Networks Limited
    Inventors: Shahid Rasul Chaudry, Muhammad Khaledul Islam, Hong Ren, Azeem Ahmad, Thomas Leonard Trevor Plestid, Neil McGowan, James Russell Weisert, Brian Douglas Troup, David Andrew Tetreau, David Allan Boettger