Patents Represented by Attorney Robert Liang
  • Patent number: 7027811
    Abstract: The details of an apparatus and method of uplink data during cell update in universal mobile telecommunications system user equipment are disclosed herein. According to one aspect of the present application, there is provided a user equipment to send uplink data to a UTRAN during a CELL UPDATE. The apparatus has an uplink data saving RRC with an uplink data store to save the uplink data while the CELL UPDATE procedure is ongoing, and a state machine having a Cell FACH state and/or a Cell DCH state. The uplink data saving RRC sends the saved uplink data to the UTRAN via an UPLINK DIRECT TRANSFER when the CELL UPDATE procedure has completed and the state machine enters either Cell FACH or Cell DCH state. According to another aspect of the present application, there is provided a method of sending uplink data to a UTRAN during a CELL UPDATE procedure.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: April 11, 2006
    Assignee: M-Stack Limited
    Inventor: David W. Pedlar
  • Patent number: 6828518
    Abstract: A shock absorbing roller thumb wheel is disclosed. The shock absorbing thumb wheel includes a central hub that can be secured to an electro-mechanical switch, a rim encircling the central hub, and force dispersion spokes extending from the central hub and connected to the rim. The configuration of the force dispersion spokes and the resilient material of the force dispersion spokes and the rim allow for radial and lateral deflection of the rim in response to an applied impact force. The impact force is thereby at least partially absorbed by the radial and lateral deflection of the rim and spokes, such that less impact force is transferred to connections between the electro-mechanical switch and any assembly to which the switch is attached. Hence, the probability of connection failures is reduced, and the lifetime of a device that uses the thumb wheel can be extended.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: December 7, 2004
    Assignee: Research In Motion Limited
    Inventors: Dave M. Ma, Herrebertus Tempelman, John A. Holmes
  • Patent number: 6820088
    Abstract: A system and method for synchronizing data records between multiple databases is provided. Each database includes data records that are modified to include at least one pair of synchronization parameters. In a two-database system including a first database and a second database, each data record is modified to include synchronization parameters for both the first and second databases. When an update is made to a data record at one of the databases, an update message is transmitted to the other database including both synchronization parameters from the database where the update is made, along with the updated data record. An efficient master-slave configuration between the databases then enables either database to resolve conflicts without further communications.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: November 16, 2004
    Assignee: Research In Motion Limited
    Inventors: Hugh Hind, Craig Dunk
  • Patent number: 6812897
    Abstract: A dual mode antenna system for a wireless transceiver is provided, and includes a retractable antenna element having a first, retracted position and a second, extended position. The antenna element operates as a first type of antenna in the first position and a second type of antenna in the second position. In the first position, the retractable antenna element is connected to a loading structure to form a low-profile antenna, and in the second position, the antenna element forms a monopole antenna.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: November 2, 2004
    Assignee: Research In Motion Limited
    Inventors: Perry Jarmuszewski, Yihong Qi