Patents by Inventor Chun Kit Lai

Chun Kit Lai 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: 20120032863
    Abstract: A mobile wireless communications device may include a portable housing, a printed circuit board (PCB) carried by the portable housing, and wireless transceiver circuitry carried by the PCB. The mobile wireless communications device also may include an antenna coupled to the wireless transceiver circuitry. The antenna may include a loop conductor, a first conductor body coupled to the loop conductor and extending into the interior thereof to define a first slotted opening with adjacent portions of the loop conductor, and a second conductor body coupled to the loop conductor and extending into the interior thereof to define a second slotted opening with adjacent portions of the loop conductor. The first and second conductor bodies may be spaced apart to define a third slotted opening therebetween. The first slotted opening may have an enlarged width portion adjacent the first conductive body.
    Type: Application
    Filed: January 19, 2011
    Publication date: February 9, 2012
    Applicant: Research in Motion Limited
    Inventors: Chun Kit Lai, Milan Velimir Lukic, Soo Liam Ooi
  • Publication number: 20120032857
    Abstract: A mobile wireless communications device may include a portable housing, a printed circuit board (PCB) carried by the portable housing, and wireless transceiver circuitry carried by the PCB. The mobile wireless communications device also may include an antenna coupled to the wireless transceiver circuitry. The antenna may include a loop conductor, a first conductor body coupled to the loop conductor and extending into the interior thereof to define a first slotted opening with adjacent portions of the loop conductor, and a second conductor body coupled to the loop conductor and extending into the interior thereof to define a second slotted opening with adjacent portions of the loop conductor. The antenna may further include a conductor arm coupled to the loop conductor and extending outwardly therefrom. The first and second conductor bodies may be spaced apart to define a third slotted opening therebetween.
    Type: Application
    Filed: January 19, 2011
    Publication date: February 9, 2012
    Applicant: Research In Motion Limited
    Inventors: Chun Kit LAI, Milan Velimir LUKIC, Soo Liam OOI
  • Patent number: 8111196
    Abstract: According to various exemplary embodiments, an antenna assembly generally includes one or more antennas, such as a single multi-frequency antenna, first and second stacked patch antennas, etc. The antenna assembly may be operable for receiving signals having different frequencies (e.g., a frequency associated with a satellite digital audio radio service (SDARS), a frequency associated with a global positioning system (GPS), etc.). The antenna assembly may generally include at least one antenna (e.g., a single multi-frequency antenna, first and second stacked patch antennas, etc.) having at least one feed point and tuned to at least one of a first frequency and a second frequency that is different than the first frequency. A low noise amplifier may be in communication with the at least one feed point for amplifying signals having the first frequency and signals having the second received from a signal output. A single communication link may be used for communicating an output signal of the antenna assembly.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: February 7, 2012
    Assignee: Laird Technologies, Inc.
    Inventors: Cheikh Thiam, Andreas Fuchs, Ayman Duzdar, Chun Kit Lai
  • Publication number: 20120019421
    Abstract: A mobile wireless communications device may include a housing, a printed circuit board (PCB) carried by the housing. The device may also include an antenna coupled to wireless transceiver circuitry carried by the PCB. The antenna may include first and second feed legs extending upwardly from the PCB, a loop conductor spaced above the PCB and having a gap therein defining first and second ends, and a first conductor arm spaced above the PCB and extending between the first feed leg and the first end. The antenna may further include a second conductor arm spaced above the PCB and having a proximal portion between the second feed leg and the second end, and having a distal portion extending outwardly from the second feed leg. The first conductor arm and the proximal portion may define a slotted opening into an interior of the loop conductor.
    Type: Application
    Filed: January 12, 2011
    Publication date: January 26, 2012
    Applicants: Ontario, Canada)
    Inventors: Chun Kit Lai, Soo Liam Ooi, Qiwu Tan
  • Publication number: 20090195477
    Abstract: According to various exemplary embodiments, an antenna assembly generally includes one or more antennas, such as a single multi-frequency antenna, first and second stacked patch antennas, etc. The antenna assembly may be operable for receiving signals having different frequencies (e.g., a frequency associated with a satellite digital audio radio service (SDARS), a frequency associated with a global positioning system (GPS), etc.). The antenna assembly may generally include at least one antenna (e.g., a single multi-frequency antenna, first and second stacked patch antennas, etc.) having at least one feed point and tuned to at least one of a first frequency and a second frequency that is different than the first frequency. A low noise amplifier may be in communication with the at least one feed point for amplifying signals having the first frequency and signals having the second received from a signal output. A single communication link may be used for communicating an output signal of the antenna assembly.
    Type: Application
    Filed: April 17, 2009
    Publication date: August 6, 2009
    Applicant: Laird Technologies, Inc.
    Inventors: Cheikh Thiam, Andreas D. Fuchs, Ayman Duzdar, Chun Kit Lai
  • Patent number: 7528780
    Abstract: According to various exemplary embodiments, an antenna assembly generally includes a first patch antenna and a second patch antenna. The first patch antenna may include a first feed point and be tuned to a first frequency. The second patch antenna may include a second feed point and be tuned to a second frequency. The antenna assembly may further include a low noise amplifier in communication with the first and second feed points of the respective first and second patch antennas for amplifying signals received by the first and second patch antennas.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: May 5, 2009
    Assignee: Laird Technologies, Inc.
    Inventors: Cheikh Thiam, Andreas Fuchs, Ayman Duzdar, Chun Kit Lai
  • Publication number: 20080068270
    Abstract: According to various exemplary embodiments, an antenna assembly generally includes a first patch antenna and a second patch antenna. The first patch antenna may include a first feed point and be tuned to a first frequency. The second patch antenna may include a second feed point and be tuned to a second frequency. The antenna assembly may further include a low noise amplifier in communication with the first and second feed points of the respective first and second patch antennas for amplifying signals received by the first and second patch antennas.
    Type: Application
    Filed: September 25, 2007
    Publication date: March 20, 2008
    Applicant: LAIRD TECHNOLOGIES, INC.
    Inventors: Cheikh Thiam, Andreas Fuchs, Ayman Duzdar, Chun Kit Lai
  • Patent number: 7277056
    Abstract: In various exemplary embodiments, an antenna assembly includes a first patch antenna and a second patch antenna. The first patch antenna includes a first feed point and is tuned to a first frequency. The second patch antenna includes a second feed point and is tuned to a second frequency. The antenna assembly may also include a transmission line having a first end in communication with the first feed point. A second end of the transmission line may be in communication with the second feed point. One of the first and second ends of the transmission line may provide a signal output for signals that are received by the first and second patch antennas. The antenna assembly may also include a low noise amplifier that receives a signal from the signal output of the transmission line.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: October 2, 2007
    Assignee: Laird Technologies, Inc.
    Inventors: Cheikh Thiam, Andreas Fuchs, Ayman Duzdar, Chun Kit Lai