Patents by Inventor Liviu George

Liviu George 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: 9806826
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and includes radio frequency (RF) circuitry and a processor carried by the circuit board and operative with each other. A display connector for an LCD connector is mounted on the circuit board and adapted to be connected to a display. Display connection lines are carried by the circuit board and interconnect the display connector and processor for carrying signals from the processor to the display connector and a connected display. Filters are carried by the circuit board and connected to the display connection lines and reduce any interfering energy from the processor and display.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: October 31, 2017
    Assignee: BLACKBERRY LIMITED
    Inventors: Lizhong Zhu, Michael Stephen Corrigan, Perry Jarmuszewski, Liviu George, George Soliman Mankaruse, James Alexander Robinson, Marc A. Drader
  • Patent number: 8954019
    Abstract: A mobile wireless communications device may include an antenna, LTE RF differential inputs, and a front end circuit. The front end circuit may include band pass filters coupled to the antenna, LNAs coupled respectively to the band pass filters, and RF switching circuits. Each RF switching circuit may be respectively coupled between each LNA and a pair of LTE RF differential inputs and configured to switch to one or both of the pair of LTE RF differential inputs.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: February 10, 2015
    Assignee: BlackBerry Limited
    Inventors: Liviu George, Simon Andrew Hughes, Christopher Robert Little, Tajinder Manku
  • Patent number: 8798670
    Abstract: A mobile wireless communications device may include an antenna, primary RF receivers configured to operate at different RF bands, each primary RF receiver having a differential input, and secondary RF receivers also configured to operate at the different RF bands, each secondary RF receiver having a differential input. The mobile wireless communications device may also include first and second RF filters coupled to the antenna and configured to respectively pass first and second RF bands from among the different RF bands, and a first DDPDT RF switch coupled between the first and second RF filters and the differential inputs of respective first ones of the primary and secondary RF receivers.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: August 5, 2014
    Assignee: BlackBerry Limited
    Inventors: Liviu George, Christopher Robert Little, Simon Andrew Hughes
  • Publication number: 20140038663
    Abstract: A mobile wireless communications device may include an antenna, primary RF receivers configured to operate at different RF bands, each primary RF receiver having a differential input, and secondary RF receivers also configured to operate at the different RF bands, each secondary RF receiver having a differential input. The mobile wireless communications device may also include first and second RF filters coupled to the antenna and configured to respectively pass first and second RF bands from among the different RF bands, and a first DDPDT RF switch coupled between the first and second RF filters and the differential inputs of respective first ones of the primary and secondary RF receivers.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 6, 2014
    Applicant: Research In Motion Limited
    Inventors: Liviu George, Christopher Robert Little, Simon Andrew Hughes
  • Publication number: 20140038667
    Abstract: A mobile wireless communications device may include an antenna, an LTE RF transmitter circuit, and an LTE RF receiver circuit. The mobile wireless communications device may also include band pass filters coupled to the antenna and configured to operate at respective different LTE RF bands, and RF switches coupled respectively between the band pass filters, and the LTE RF cellular transmitter and receiver circuits.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 6, 2014
    Applicant: Research In Motion Limited
    Inventors: Christopher Robert Little, Simon Andrew Hughes, Liviu George
  • Patent number: 8600451
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and includes radio frequency (RF) circuitry and a processor carried by the circuit board and operative with each other. A display connector for an LCD connector is mounted on the circuit board and adapted to be connected to a display. Display connection lines are carried by the circuit board and interconnect the display connector and processor for carrying signals from the processor to the display connector and a connected display. Filters are carried by the circuit board and connected to the display connection lines and reduce any interfering energy from the processor and display.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: December 3, 2013
    Assignee: BlackBerry Limited
    Inventors: Lizhong Zhu, Michael Stephen Corrigan, Perry Jarmuszewski, Liviu George, George Soliman Mankaruse, James Alexander Robinson, Marc Drader
  • Patent number: 8446333
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: May 21, 2013
    Assignee: Research In Motion Limited
    Inventors: Lizhong Zhu, Michael Stephen Corrigan, Robert J. Grant, Liviu George, Perry Jarmuszewski
  • Patent number: 8314747
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: November 20, 2012
    Assignee: Research In Motion Limited
    Inventors: Lizhong Zhu, Michael Corrigan, Robert Grant, Liviu George, Perry Jarmuszewski
  • Patent number: 8244306
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and includes radio frequency (RF) circuitry and a processor carried by the circuit board and operative with each other. A display connector for an LCD connector is mounted on the circuit board and adapted to be connected to a display. Display connection lines are carried by the circuit board and interconnect the display connector and processor for carrying signals from the processor to the display connector and a connected display. Filters are carried by the circuit board and connected to the display connection lines and reduce any interfering energy from the processor and display.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: August 14, 2012
    Assignee: Research In Motion Limited
    Inventors: Lizhong Zhu, Michael Corrigan, Perry Jarmuszewski, Liviu George, George Mankaruse, James Robinson, Marc Drader
  • Publication number: 20120176290
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.
    Type: Application
    Filed: March 21, 2012
    Publication date: July 12, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Lizhong Zhu, Michael Corrigan, Robert Grant, Liviu George, Perry Jarmuszewski
  • Patent number: 8164539
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: April 24, 2012
    Assignee: Research In Motion Limited
    Inventors: Lizhong Zhu, Michael Corrigan, Robert Grant, Liviu George, Perry Jarmuszewski
  • Publication number: 20120071209
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and includes radio frequency (RF) circuitry and a processor carried by the circuit board and operative with each other. A display connector for an LCD connector is mounted on the circuit board and adapted to be connected to a display. Display connection lines are carried by the circuit board and interconnect the display connector and processor for carrying signals from the processor to the display connector and a connected display. Filters are carried by the circuit board and connected to the display connection lines and reduce any interfering energy from the processor and display.
    Type: Application
    Filed: November 21, 2011
    Publication date: March 22, 2012
    Applicant: Research In Motion Limited
    Inventors: Lizhong Zhu, Michael Corrigan, Perry Jarmuszewski, Liviu George, George Mankaruse, James Robinson, Marc Drader
  • Patent number: 8064963
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and includes radio frequency (RF) circuitry and a processor carried by the circuit board and operative with each other. A display connector for an LCD connector is mounted on the circuit board and adapted to be connected to a display. Display connection lines are carried by the circuit board and interconnect the display connector and processor for carrying signals from the processor to the display connector and a connected display. Filters are carried by the circuit board and connected to the display connection lines and reduce any interfering energy from the processor and display.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: November 22, 2011
    Assignee: Research in Motion Limited
    Inventors: Lizhong Zhu, Michael Corrigan, Perry Jarmuszewski, Liviu George, George Mankaruse, James Robinson, Marc Drader
  • Publication number: 20110156979
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.
    Type: Application
    Filed: March 7, 2011
    Publication date: June 30, 2011
    Applicant: Research In Motion Limited
    Inventors: Lizhong Zhu, Michael Corrigan, Robert Grant, Liviu George, Perry Jarmuszewski
  • Patent number: 7928925
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: April 19, 2011
    Assignee: Research In Motion Limited
    Inventors: Lizhong Zhu, Michael Corrigan, Robert Grant, Liviu George, Perry Jarmuszewski
  • Publication number: 20110043417
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.
    Type: Application
    Filed: November 1, 2010
    Publication date: February 24, 2011
    Applicant: Research In Motion Limited
    Inventors: Lizhong Zhu, Michael Corrigan, Robert Grant, Liviu George, Perry Jarmuszewski
  • Patent number: 7847742
    Abstract: A fixture for radio frequency (“RF”) testing of an assembled wireless device, the wireless device having a removable casing concealing one or more RF spring connectors, the fixture comprising: a retainer for receiving the wireless device with the removable casing removed; a coaxial connector mounted through the retainer, the coaxial connector having a center contact and a shield contact, the coaxial connector for communicating RF test signals through a coaxial cable with external test equipment; a circuit board mounted on an inner side of the retainer and having one or more pads each for receiving one of the center and shield contacts; and, one or more probes mounted on ones of the pads for contacting ones of the RF spring connectors to distribute the RF test signals.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: December 7, 2010
    Assignee: Research In Motion Limited
    Inventors: Tim Sommerfeld, Steve Green, Liviu George
  • Patent number: 7825870
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: November 2, 2010
    Assignee: Research In Motion Limited
    Inventors: Lizhong Zhu, Michael Corrigan, Robert Grant, Liviu George, Perry Jarmuszewski
  • Publication number: 20090093286
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.
    Type: Application
    Filed: December 15, 2008
    Publication date: April 9, 2009
    Applicant: Research In Motion Limited
    Inventors: Lizhong Zhu, Michael Corrigan, Robert Grant, Liviu George, Perry Jarmuszewski
  • Patent number: 7477202
    Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: January 13, 2009
    Assignee: Research In Motion
    Inventors: Lizhong Zhu, Michael Corrigan, Robert Grant, Liviu George, Perry Jarmuszewski