Patents by Inventor Hui-Leng Lim

Hui-Leng Lim 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: 20120198689
    Abstract: Handheld electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include antenna structures. To accommodate manufacturing variations, the antenna structures and handheld electronic devices may be characterized by performing measurements such as antenna performance measurements. Appropriate antenna adjustments may be made during manufacturing of a handheld electronic device based on the characterizing measurements. An antenna may be formed using an inverted-F design in which an antenna flex circuit is mounted to a dielectric antenna support structure. Cavities in the support may be selectively filled with dielectric material and dielectric patches may be added to the antenna flex circuit to adjust the dielectric loading of the antenna. The length of a ground return path in the antenna may be adjusted by appropriate positioning of an electrical connector within the ground return path.
    Type: Application
    Filed: April 14, 2012
    Publication date: August 9, 2012
    Inventors: Robert W. Schlub, Dean F. Darnell, Robert J. Hill, Teodor Dabov, Hui Leng Lim
  • Patent number: 8169373
    Abstract: Handheld electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include antenna structures. To accommodate manufacturing variations, the antenna structures and handheld electronic devices may be characterized by performing measurements such as antenna performance measurements. Appropriate antenna adjustments may be made during manufacturing of a handheld electronic device based on the characterizing measurements. An antenna may be formed using an inverted-F design in which an antenna flex circuit is mounted to a dielectric antenna support structure. Cavities in the support may be selectively filled with dielectric material and dielectric patches may be added to the antenna flex circuit to adjust the dielectric loading of the antenna. The length of a ground return path in the antenna may be adjusted by appropriate positioning of an electrical connector within the ground return path.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: May 1, 2012
    Assignee: Apple Inc.
    Inventors: Robert W. Schlub, Dean F. Darnell, Robert J. Hill, Teodor Dabov, Hui Leng Lim
  • Publication number: 20110058301
    Abstract: One or more emitter electrodes of an ion wind fan can be held in tension by using a slider mechanism in contact with a compression spring. In one embodiment, an ion wind fan has an isolator with a cavity, and the slider movably located in the cavity. The fan further includes a spring located in the cavity, so that the slider compresses the spring when the slider moves in the cavity. An emitter wire is then attached to the isolator and to the slider so that the emitter is in tension.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 10, 2011
    Applicant: Ventiva, Inc.
    Inventor: Hui-Leng LIM
  • Patent number: 7869206
    Abstract: A minimum Z height handheld electronic device and methods of assembly is described. The electronic device includes a single seamless housing having a front opening and a cover disposed within the front opening and attached to the seamless housing without a bezel.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: January 11, 2011
    Assignee: Apple Inc.
    Inventors: Teodor Dabov, Hui Leng Lim, Kyle Yeates, Stephen Brian Lynch
  • Publication number: 20100146766
    Abstract: A minimum Z height handheld electronic device and methods of assembly is described. The electronic device includes a single seamless housing having a front opening and a cover disposed within the front opening and attached to the seamless housing without a bezel.
    Type: Application
    Filed: February 25, 2010
    Publication date: June 17, 2010
    Applicant: APPLE INC.
    Inventors: Teodor Dabov, Hui Leng Lim, Kyle Yeates, Stephen Brian Lynch
  • Patent number: 7720445
    Abstract: Described is a modular access point for wireless communications. The access point includes a housing which has at least one module receiving slot and a first wireless communication radio. The radio communicates with a first wireless device via a first frequency band. The access point also includes a removable module configured for insertion into the module receiving slot. The module includes a second communication radio utilizing a second frequency band so that, when the removable module is inserted into the slot, the access point is capable of communicating with a second wireless device via at least one of the first and second frequency bands. The access point includes a plurality of antenna connectors which are connected to the first and second radios. The access pint may utilize external antennas or internal antenna modules which interchangeably attachable to the antenna connectors.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: May 18, 2010
    Assignee: Symbol Technologies, Inc.
    Inventors: Hui-Leng Lim, Pat Wallace, Ed Geiger, Phil Ballai, Curt Croley
  • Publication number: 20100060529
    Abstract: Handheld electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include antenna structures. To accommodate manufacturing variations, the antenna structures and handheld electronic devices may be characterized by performing measurements such as antenna performance measurements. Appropriate antenna adjustments may be made during manufacturing of a handheld electronic device based on the characterizing measurements. An antenna may be formed using an inverted-F design in which an antenna flex circuit is mounted to a dielectric antenna support structure. Cavities in the support may be selectively filled with dielectric material and dielectric patches may be added to the antenna flex circuit to adjust the dielectric loading of the antenna. The length of a ground return path in the antenna may be adjusted by appropriate positioning of an electrical connector within the ground return path.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 11, 2010
    Inventors: Robert W. Schlub, Dean F. Darnell, Robert J. Hill, Teodor Dabov, Hui Leng Lim
  • Publication number: 20080214251
    Abstract: Described is a modular access point for wireless communications. The access point includes a housing which has at least one module receiving slot and a first wireless communication radio. The radio communicates with a first wireless device via a first frequency band. The access point also includes a removable module configured for insertion into the module receiving slot. The module includes a second communication radio utilizing a second frequency band so that, when the removable module is inserted into the slot, the access point is capable of communicating with a second wireless device via at least one of the first and second frequency bands. The access point includes a plurality of antenna connectors which are connected to the first and second radios. The access point may utilize external antennas or internal antenna modules which interchangeably attachable to the antenna connectors.
    Type: Application
    Filed: March 26, 2008
    Publication date: September 4, 2008
    Inventors: Hui-Leng LIM, Pat Wallace, Ed Geiger, Phil Ballai, Curt Croley
  • Patent number: 7187825
    Abstract: Described is a system with a light pipe body having a first end and a second end, wherein a light source provides light beams at a first end of the light pipe body, the light beams traveling through the light pipe body. The system further includes a light-emitting surface coupled to the second end of the light pipe body, wherein the light beams travel from the light pipe body to the light-emitting surface. The system also has dispersion structures disposed on a surface of the light-emitting surface, wherein the dispersion structures are protrusions from the surface of the light-emitting surface, the light beams traveling from the light-emitting surface to the dispersion structures and being emitted from the dispersion structures at a plurality of angles.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: March 6, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Hui-Leng Lim, Igor Vinogradov
  • Patent number: 7177097
    Abstract: Described is a light pipe having a first end receiving light beams from a light source, a light pipe body through which the light beams travel and a second end including a dispersion structure with a light emitting surface, the dispersion structure being a substantially conical shaped depression in the second end, the light beams being emitted from the light emitting surface of the dispersion structure at a plurality of angles.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: February 13, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Hui-Leng Lim, Igor Vinogradov, Patrick Wallace
  • Publication number: 20060158746
    Abstract: Described is a light pipe having a first end receiving light beams from a light source, a light pipe body through which the light beams travel and a second end including a dispersion structure with a light emitting surface, the dispersion structure being a substantially conical shaped depression in the second end, the light beams being emitted from the light emitting surface of the dispersion structure at a plurality of angles.
    Type: Application
    Filed: January 20, 2005
    Publication date: July 20, 2006
    Inventors: Hui-Leng Lim, Igor Vinogradov, Patrick Wallace
  • Patent number: 7014492
    Abstract: Described is a circuit assembly including a circuit board including a connector, a card connectable to the connector and an apparatus securing the card to the connector, wherein the apparatus includes a front portion in substantially close contact with the card and a back portion in substantially close contact with the card, the apparatus being coupled to the circuit board.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: March 21, 2006
    Assignee: Symbol Technologies, Inc.
    Inventors: Hui-Leng Lim, Patrick Wallace, Michael Suekawa
  • Publication number: 20050135741
    Abstract: Described is a system with a light pipe body having a first end and a second end, wherein a light source provides light beams at a first end of the light pipe body, the light beams traveling through the light pipe body. The system further includes a light-emitting surface coupled to the second end of the light pipe body, wherein the light beams travel from the light pipe body to the light-emitting surface. The system also has dispersion structures disposed on a surface of the light-emitting surface, wherein the dispersion structures are protrusions from the surface of the light-emitting surface, the light beams traveling from the light-emitting surface to the dispersion structures and being emitted from the dispersion structures at a plurality of angles.
    Type: Application
    Filed: December 17, 2003
    Publication date: June 23, 2005
    Inventors: Hui-Leng Lim, Igor Vinogradov
  • Publication number: 20050107136
    Abstract: Described is a modular access point for wireless communications. The access point includes a housing which has at least one module receiving slot and a first wireless communication radio. The radio communicates with a first wireless device via a first frequency band. The access point also includes a removable module configured for insertion into the module receiving slot. The module includes a second communication radio utilizing a second frequency band so that, when the removable module is inserted into the slot, the access point is capable of communicating with a second wireless device via at least one of the first and second frequency bands. The access point includes a plurality of antenna connectors which are connected to the first and second radios. The access pint may utilize external antennas or internal antenna modules which interchangeably attachable to the antenna connectors.
    Type: Application
    Filed: November 19, 2003
    Publication date: May 19, 2005
    Inventors: Hui-Leng Lim, Pat Wallace, Ed Geiger, Phil Ballai, Curt Croley
  • Patent number: D510343
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: October 4, 2005
    Assignee: Symbol Technologies, Inc.
    Inventors: Patrick Wallace, Hui-Leng Lim, James T. Mielke
  • Patent number: D512052
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: November 29, 2005
    Assignee: Symbol Technologies, Inc
    Inventors: Patrick Wallace, Hui-Leng Lim