Patents by Inventor Alex Chan

Alex Chan 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: 9019827
    Abstract: The present disclosure provides for devices, systems, and methods which optimize throughput of bonded connections over multiple variable bandwidth logical paths by adjusting a tunnel bandwidth weighting schema during a data transfer session in response to a change in bandwidth capabilities of one or more tunnels. By making such adjustments, embodiments of the present invention are able to optimize the bandwidth potential of multiple connections being used in a session, while minimizing the adverse consequences of reduced bandwidth issues which may occur during the data transfer session.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: April 28, 2015
    Assignee: Pismo Labs Technology Ltd.
    Inventors: Ho Ming Chan, Patrick Ho Wai Sung, Kam Chiu Ng, Wing Hong Alex Chan, Kit Wai Chau
  • Publication number: 20150092373
    Abstract: Various exemplary embodiments relate to a printed circuit board (PCB) comprising a ball grid array (BGA) of BGA pads on one side of the PCB, arranged in a grid pattern; through-hole vias, including a via pad, arranged in said grid pattern electrically connected to said BGA pads; a solder mask covering the via pad with an opening; a solder pad within said opening electrically connected to said via pad; and a two-lead component attached to said solder pad.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 2, 2015
    Applicant: ALCATEL-LUCENT CANADA INC.
    Inventors: Alex CHAN, Paul J. BROWN
  • Publication number: 20150001716
    Abstract: Embodiments of the invention place surface-mount devices such as decoupling capacitors, resistors or other devices directly on the underside of a ball grid array (BGA) electronic integrated circuit (EIC) package, in place of de-populated BGA pads.
    Type: Application
    Filed: September 17, 2014
    Publication date: January 1, 2015
    Inventors: Alex Chan, Paul James Brown
  • Publication number: 20140367712
    Abstract: A side view surface mount light emitting device is disclosed. The light emitting device comprises a side oriented package comprising a floor and a plurality of light emitting diodes (LEDs) mounted on the floor. The device further includes a plurality of contact pins in electrical contact, such that the plurality of contact pins protrude from a side of the package, in which at least one of the contact pins is oriented in a direction opposite the remaining contact pins. The LEDs of the device are disposed to emit light in a direction parallel to said mount surface. Some configurations also include a plurality of bond pads, on or a part of the floor, to facilitate electrical connection between the LEDs and the contact pins, in which adjacent bond pads have a tapered shape such that the widest portion of a first bond pad is adjacent to the narrowest portion of a second bond pad. Displays including such devices are also disclosed.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 18, 2014
    Inventors: CHI KEUNG ALEX CHAN, YUE KWONG VICTOR LAU, CHAK HAU CHARLES PANG, ZHENYU ZHONG
  • Publication number: 20140353694
    Abstract: Emitter packages and LEDs displays utilizing the packages are disclosed, with the packages providing advantages such as reducing the cost and interconnect complexity for the packages and displays. One emitter package comprises a casing with a plurality of cavities, each cavity having at least one LED. A lead frame structure is included integral to the casing, with the at least one LED from each of the cavities mounted to the lead frame structure. The package is capable of receiving electrical signals for independently controlling the emission from a first and second of the cavities. One LED display utilizes the LED packages mounted in relation to one another to generate a message or image. The LED packages comprise multiple pixels each having at least one LED, with each package capable of receiving electrical signals for independently controlling the emission of at least a first and second of the pixels.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 4, 2014
    Inventors: Chak Hau Charles Pang, Chi Keung Alex Chan, David Emerson, Yue Kwong Victor Lau, Zhanyu Zhong
  • Patent number: 8863071
    Abstract: Embodiments of the invention place surface-mount devices such as decoupling capacitors, resistors or other devices directly on the underside of a ball grid array (BGA) electronic integrated circuit (EIC) package, in place of de-populated BGA pads.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: October 14, 2014
    Assignee: Alcatel Lucent
    Inventors: Alex Chan, Paul James Brown
  • Patent number: 8806420
    Abstract: Embodiments of the invention place surface-mount such as decoupling capacitors, resistors or other devices directly on the underside of a ball grid array (BGA) electronic integrated circuit (EIC) package, between BGA pads.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: August 12, 2014
    Assignee: Alcatel Lucent
    Inventors: Alex Chan, Paul James Brown
  • Patent number: 8759689
    Abstract: A land pattern for 1 mm and 0.8 mm pitch arrays has been disclosed for placing two port devices. The land pattern includes a ball grid array (BGA) of BGA pads each connected to a respective through hole via, and a pair of rectangular conductive pads electrically connected to a an adjacent pair of through hole vias, wherein each rectangular pad extends out from its via towards the other via of the pair along a line connecting the centers of said adjacent pair vias. A solder mask is located on the rectangular pad side and has apertures over each rectangular conductive pad. The land pattern is particularly useful for locating two port devices directly underneath a BGA device while minimizing the distance from a BGA ball to the two port device lead.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: June 24, 2014
    Assignee: Alcatel Lucent
    Inventors: Alex Chan, Paul James Brown
  • Publication number: 20130062763
    Abstract: Embodiments of the invention place surface-mount devices such as decoupling capacitors, resistors or other devices directly on the underside of a ball grid array (BGA) electronic integrated circuit (EIC) package, in place of de-populated BGA pads.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 14, 2013
    Applicant: Alcatel-Lucent Canada, Inc.
    Inventors: Alex CHAN, Paul Brown
  • Publication number: 20130062762
    Abstract: Embodiments of the invention place surface-mount such as decoupling capacitors, resistors or other devices directly on the underside of a ball grid array (BGA) electronic integrated circuit (EIC) package, between BGA pads.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 14, 2013
    Applicant: Alcatel-Lucent Canada, Inc.
    Inventors: Alex Chan, Paul James Brown
  • Patent number: 8368112
    Abstract: A multiple element emitter package is disclosed for increasing color fidelity and heat dissipation, improving current control, increasing rigidity of the package assembly. In one embodiment, the package comprises a surface-mount device a casing with a cavity extending into the interior of the casing from a first main surface is provided. A lead frame is at least partially encased by the casing, the lead frame comprising a plurality of electrically conductive parts carrying a linear array of light emitting devices (LEDs). Electrically conductive parts, separate from parts carrying the LEDs have a connection pad, wherein the LEDs are electrically coupled to a connection pad, such as by a wire bond. This lead frame arrangement allows for a respective electrical signal can be applied to each of the LEDs. The emitter package may be substantially waterproof, and an array of the emitter packages may be used in an LED display such as an indoor and/or outdoor LED screen.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: February 5, 2013
    Assignee: Cree Huizhou Opto Limited
    Inventors: Chi Keung Alex Chan, Yue Kwong Victor Lau, Xuan Wang, David Emerson
  • Publication number: 20120168216
    Abstract: A land pattern for 1 mm and 0.8 mm pitch arrays has been disclosed for placing two port devices. The land pattern includes a ball grid array (BGA) of BGA pads each connected to a respective through hole via, and a pair of rectangular conductive pads electrically connected to a an adjacent pair of through hole vias, wherein each rectangular pad extends out from its via towards the other via of the pair along a line connecting the centers of said adjacent pair vias. A solder mask is located on the rectangular pad side and has apertures over each rectangular conductive pad. The land pattern is particularly useful for locating two port devices directly underneath a BGA device while minimizing the distance from a BGA ball to the two port device lead.
    Type: Application
    Filed: January 4, 2011
    Publication date: July 5, 2012
    Applicant: ALCATEL-LUCENT CANADA INC.
    Inventors: Alex Chan, Paul James Brown
  • Patent number: 8049230
    Abstract: In one embodiment, a surface-mount device comprises a casing having opposed, first and second main surfaces, side surfaces, and end surfaces. A lead frame partially encased by the casing comprises (1) an electrically conductive LED chip carrier part having a surface carrying a linear array of LEDs adapted to be energized to produce in combination a substantially full range of colors, each LED having a first electrical terminal and a second electrical terminal, the first terminal of each of the LEDs being electrically and thermally coupled to the chip carrying surface of the chip carrier part; and (2) electrically conductive connection parts separate from the chip carrier part, each of the connection parts having a connection pad, the second terminal of each of the LEDs being electrically coupled to the connection pad of a corresponding one of the connection parts with a single wire bond. The linear array of LEDs extends in a first direction, and each of the chip carrier part and connection parts has a lead.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: November 1, 2011
    Assignee: Cree Huizhou Opto Limited
    Inventors: Alex Chan, Xuan Wang
  • Patent number: 7823681
    Abstract: An interlock system using biometrics scans to identify in real-time an individual who seeks to operate a mechanical device, such as an automobile. Biometrics features that uniquely identify an individual are selected. If a real-time biometrics scan of the individual does not match a stored image of an authorized operator, the interlock system will lock the mechanical device to prevent operation. The interlock system may be used in conjunction with a breath alcohol analyzer to determine impairment. If the biometrics testing indicates that the individual is required to be tested for impairment, the mechanical device will not operate until the testing is completed.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: November 2, 2010
    Assignee: B.E.S.T. Labs, Inc.
    Inventors: Pierre M. Crespo, Alex Chan
  • Publication number: 20100155748
    Abstract: A multiple element emitter package is disclosed for increasing color fidelity and heat dissipation, improving current control, increasing rigidity of the package assembly. In one embodiment, the package comprises a surface-mount device a casing with a cavity extending into the interior of the casing from a first main surface is provided. A lead frame is at least partially encased by the casing, the lead frame comprising a plurality of electrically conductive parts carrying a linear array of light emitting devices (LEDs). Electrically conductive parts, separate from parts carrying the LEDs have a connection pad, wherein the LEDs are electrically coupled to a connection pad, such as by a wire bond. This lead frame arrangement allows for a respective electrical signal can be applied to each of the LEDs. The emitter package may be substantially waterproof, and an array of the emitter packages may be used in an LED display such as an indoor and/or outdoor LED screen.
    Type: Application
    Filed: January 14, 2009
    Publication date: June 24, 2010
    Inventors: Chi Keung Alex Chan, Yue Kwong Victor Lau, Xuan Wang
  • Publication number: 20100108425
    Abstract: An interlock system using biometrics scans to identify in real-time an individual who seeks to operate a mechanical device, such as an automobile. Biometrics features that uniquely identify an individual are selected. If a real-time biometrics scan of the individual does not match a stored image of an authorized operator, the interlock system will lock the mechanical device to prevent operation. The interlock system may be used in conjunction with a breath alcohol analyzer to determine impairment. If the biometrics testing indicates that the individual is required to be tested for impairment, the mechanical device will not operate until the testing is completed.
    Type: Application
    Filed: October 3, 2008
    Publication date: May 6, 2010
    Applicant: B.E.S.T. LABS, INC.
    Inventors: Pierre M. Crespo, Alex Chan
  • Publication number: 20090283781
    Abstract: In one embodiment, a surface-mount device comprises a casing having opposed, first and second main surfaces, side surfaces, and end surfaces. A lead frame partially encased by the casing comprises (1) an electrically conductive LED chip carrier part having a surface carrying a linear array of LEDs adapted to be energized to produce in combination a substantially full range of colors, each LED having a first electrical terminal and a second electrical terminal, the first terminal of each of the LEDs being electrically and thermally coupled to the chip carrying surface of the chip carrier part; and (2) electrically conductive connection parts separate from the chip carrier part, each of the connection parts having a connection pad, the second terminal of each of the LEDs being electrically coupled to the connection pad of a corresponding one of the connection parts with a single wire bond. The linear array of LEDs extends in a first direction, and each of the chip carrier part and connection parts has a lead.
    Type: Application
    Filed: May 16, 2008
    Publication date: November 19, 2009
    Inventors: Alex Chan, Xuan Wang
  • Patent number: 7602615
    Abstract: A ball grid array (BGA) having an array of BGA pads on one side and at least a pair of contiguous through board vias, at least a pair of conductive pads surrounding the through hole vias, wherein the conductive pads have octagonal shapes and four sides of each octagonal pad are mutually parallel.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: October 13, 2009
    Assignee: Alcatel Lucent
    Inventors: Alex Chan, Paul James Brown
  • Publication number: 20080205011
    Abstract: A ball grid array (BGA) having an array of BGA pads on one side and at least a pair of contiguous through board vias, at least a pair of conductive pads surrounding the through hole vias, wherein the conductive pads have octagonal shapes and four sides of each octagonal pad are mutually parallel.
    Type: Application
    Filed: February 23, 2007
    Publication date: August 28, 2008
    Inventors: Alex Chan, Paul James Brown
  • Publication number: 20060167975
    Abstract: Methods are disclosed for caching content and state data at a network element. In one embodiment, data packets are intercepted at a network element. An application layer message, which specifies a request for specified data from a server application, is determined from the data packets. A first portion of the specified data contained in the network element's cache is determined. A message that requests a second portion of the data not contained in the cache is sent toward a server application. A first response that contains the second portion, but not the first portion, is received. A second response, which contains the first and second portions, is sent toward a client application. In one embodiment, data packets are intercepted at the network element. An application layer message, which specifies session or database connection state information, is determined from the data packets. The state information is cached at the network element.
    Type: Application
    Filed: November 23, 2004
    Publication date: July 27, 2006
    Inventors: Alex Chan, Snehal Haridas, Raj De Datta