Patents by Inventor Chi Leung

Chi Leung 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: 20100057656
    Abstract: Device, system, and method of determining a solution scheme of a poly-algorithm solver. Some embodiments include a method of determining a solution scheme to be applied to input data by a poly-algorithm solver including a plurality of algorithms, the method including receiving a calling sequence including input values of a predefined set of parameters corresponding to the input data; based on the input values, choosing one of first and second algorithm selection models for selecting one or more of the algorithms to be applied to the input data by the solver. Other embodiments are described and claimed.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 4, 2010
    Inventors: David Kuck, Henry Gabb, Chi Leung David Wong
  • Patent number: 7659780
    Abstract: A gain control circuit including a resistor with a first terminal and a second terminal; an operational amplifier with an inverting terminal thereof electrically coupled to said first terminal of said resistor; a non-inverting terminal thereof; and an output terminal thereof; an amplifier circuit for transforming the voltage change of said operational amplifier output into a substantially exponential current change; wherein the output of said amplifier circuit is electrically coupled to said inverting terminal of said operational amplifier. The above described gain control circuit is able to perform wide bandwidth input signal buffering with linearity under low voltage and low power conditions. The circuit also offers low output impedances without the need of additional buffers and hence minimizing circuit size and manufacturing costs.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: February 9, 2010
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Chit Ah Mak, Chun Fai Wong, Lap Chi Leung, Xiaofei Kuang, Jennifer Shuet Yan Ho, David Kwok Kuen Kwong
  • Patent number: 7638081
    Abstract: An injection moulding process for the preparation of an oral delivery device comprising a core which contains a pharmaceutically active agent, having a coating with one or more openings leading to such a core. The invention also relates to devices produced by the process, and to injection moulds suitable for performing the process.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: December 29, 2009
    Assignee: SmithKline Beecham plc
    Inventors: Allan J. Clarke, Robert Glinecke, Ronald Raby, Chi Leung Li, Luigi Martini
  • Publication number: 20090223253
    Abstract: A circular knitted fabric for the manufacture of a garment includes a first portion formed of a low melting point yam and a first yarn, and a continuing second portion formed of the low melting point yarn and a second yarn. The second portion has an elastane content greater than that of the first portion. The low melting point yarn fuses with the first and second yams after heating to a temperature sufficient to melt the low melting point yarn only. The fabric, after finishing, is adapted to be cut into a garment in such a way that the first portion becomes a body of the garment, and the second portion becomes an integral elastic band-like selvedge of the garment.
    Type: Application
    Filed: March 9, 2008
    Publication date: September 10, 2009
    Inventors: Chi Leung Chung, King Hung Ko, Ka Chun Wan
  • Publication number: 20090140808
    Abstract: A gain control circuit including a resistor with a first terminal and a second terminal; an operational amplifier with an inverting terminal thereof electrically coupled to said first terminal of said resistor; a non-inverting terminal thereof; and an output terminal thereof; an amplifier circuit for transforming the voltage change of said operational amplifier output into a substantially exponential current change; wherein the output of said amplifier circuit is electrically coupled to said inverting terminal of said operational amplifier. The above described gain control circuit is able to perform wide bandwidth input signal buffering with linearity under low voltage and low power conditions. The circuit also offers low output impedances without the need of additional buffers and hence minimizing circuit size and manufacturing costs.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 4, 2009
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Chit Ah MAK, Chun Fai WONG, Lap Chi LEUNG, Xiaofei KUANG, Jennifer Shuet Yan HO, David Kwok Kuen KWONG
  • Publication number: 20090112171
    Abstract: The present invention relates to clothing items such as pants or shoulder bags incorporating urine bag pockets suitable for holding a urine bag. Through the invention, incontinence sufferers are able to maintain mobility while still concealing a urine bag.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 30, 2009
    Applicant: The Hong Kong Polytechnic University
    Inventors: Frency Sau Fun Ng, Patrick Chi-leung Hui
  • Publication number: 20090108554
    Abstract: A skateboard deck is formed of several layers that are pressed and bonded together. One or more slots are formed through a plurality of the middle layers of such a deck, and an elongate rod is arranged within each slot. The elongate rods, when cured, are more rigid than the other layers of the skateboard deck, and provide impact dispersion and torsion resistance while allowing the remaining layers of the deck to retain their performance characteristics and feel.
    Type: Application
    Filed: July 14, 2008
    Publication date: April 30, 2009
    Inventors: Hugh Boyle, Eben Woodall, Chi Leung
  • Patent number: 7468492
    Abstract: An electrical switch has at least two fixed contacts and a moving contact lever movable between an ON position making contact with one of the fixed contacts and an OFF position breaking contact with one of the fixed contacts. A rocker pivots in opposite directions between a first position, moving the contact lever into the ON position and a second position, moving the contact lever into the OFF position. A locking member associated with the rocker automatically locks the rocker in each of the first and second positions. The locking member is releasable to unlock the rocker upon manual movement of the locking member in a direction different from directions of movement of the rocker.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: December 23, 2008
    Assignee: Defond Components Limited
    Inventor: Chi Leung Lai
  • Publication number: 20080313181
    Abstract: Provided are techniques for defining a web crawl space to be crawled. A seed list including one or more seed names is received from a user, wherein each seed name represents a website. In response to receiving the seed list, a web crawl space for the received seed list is generated by generating one or more allow rules.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 18, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tony Kai-chi LEUNG, Maxime Romain TIRAN
  • Publication number: 20080294657
    Abstract: Provided are techniques for handling error documents. One or more entries for error documents are stored in a text index. A document with a document identifier is received. It is determined whether the document has an entry in the text index.
    Type: Application
    Filed: May 25, 2007
    Publication date: November 27, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Tony Kai-Chi Leung
  • Patent number: 7432227
    Abstract: 4-Aminopicolinic acids having alkyl or alkenyl substituents in the 6-position and their amine and acid derivatives are potent herbicides demonstrating a broad spectrum of weed control.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: October 7, 2008
    Assignee: Dow AgroSciences LLC
    Inventors: Terry William Balko, Ann Marie Buysse, Stephen Craig Fields, Nicholas Martin Irvine, William Chi-Leung Lo, Christian Thomas Lowe, John Sanders Richburg, Paul Richard Schmitzer
  • Publication number: 20080238013
    Abstract: A skateboard deck is formed of several layers pressed and bonded together. Apertures are formed through the bottom-most layers, and impact support members are arranged within the apertures. The impact support members are more rigid than the other portions of the skateboard deck, and provide localized impact support while allowing the remaining layers of the deck to retain their performance characteristics and feel while strengthening the most vulnerable areas of the deck.
    Type: Application
    Filed: November 9, 2007
    Publication date: October 2, 2008
    Applicant: Chomp, Inc.
    Inventors: Eben Woodall, Chi Leung, Scott Jensen
  • Publication number: 20080053804
    Abstract: An electrical switch has at least two fixed contacts and a moving contact lever movable between an ON position making contact with one of the fixed contacts and an OFF position breaking contact with one of the fixed contacts. A rocker pivots in opposite directions between a first position, moving the contact lever into the ON position and a second position, moving the contact lever into the OFF position. A locking member associated with the rocker automatically locks the rocker in each of the first and second positions. The locking member is releasable to unlock the rocker upon manual movement of the locking member in a direction different from directions of movement of the rocker.
    Type: Application
    Filed: September 4, 2007
    Publication date: March 6, 2008
    Applicant: DEFOND COMPONENTS LIMITED
    Inventor: Chi Leung Lai
  • Publication number: 20070200018
    Abstract: A food mixing apparatus comprising a container defining a cavity and adapted to contain food to be treated, a first blade member rotatable to mix and/or cut food in said container, and a second blade member rotatable to remove food adhered on a sidewall of the container in the cavity in the container.
    Type: Application
    Filed: February 27, 2006
    Publication date: August 30, 2007
    Inventors: Chi Leung, Chi Fung, Shek Luk
  • Publication number: 20070170902
    Abstract: In one embodiment, a power supply controller uses a first clock of a first frequency to initiate a PWM cycle in a first operating mode and uses a second clock having a higher frequency to initiate a PWM cycle in a second operating mode.
    Type: Application
    Filed: January 26, 2006
    Publication date: July 26, 2007
    Inventors: Gang Chen, Lung Chan, Chi Leung
  • Publication number: 20070108087
    Abstract: There is provided a storage caddy that can safely store a variety of blades for a food processor. The storage caddy includes a housing and a handle to enable easy transport of the storage caddy. The housing can include a top portion, a middle portion, and a bottom portion. Within these portions can be various cutouts or grooves that can hold various food processor accessories, such as blades, disks or stem holders. In a preferred embodiment, a circular opening can be located on the bottom of the storage caddy. This opening can enable the entire storage caddy to be placed within a food processor for storage purposes. The opening at the bottom of the storage caddy can be placed over the drive shaft of a food processor and the food processor can then be closed with the storage caddy inside.
    Type: Application
    Filed: October 6, 2006
    Publication date: May 17, 2007
    Inventor: Chi Leung
  • Publication number: 20070079638
    Abstract: A ground lock fitting comprises: an upper cover comprises a top surface and an upper sidewall, wherein a guiding hole is provided on the top surface and a thread is provided on the upper sidewall; a lower cover comprises a base surface and a lower sidewall, wherein a mounting hole is provided on the base surface; the upper cover is connected with the lower cover to form a chamber in which a locking bar comprising a mainbody and a stopper attached thereunder is disposed; and a magnetized portion is provided on top of the mainbody in which a locking hole is provided. The ground lock fitting is hidden from view, hard to break open and convenient to use such that it can be widely used in rolling shutter gates for stores and the like.
    Type: Application
    Filed: January 6, 2006
    Publication date: April 12, 2007
    Inventor: Chi Leung
  • Patent number: 7146479
    Abstract: Methods and/or systems and/or apparatus for improved memory management include different allocation and deallocation strategies for various sizes of objects needing memory allocation during runtime.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: December 5, 2006
    Assignee: City U Research Limited
    Inventors: Richard Chi Leung Li, Anthony Shi Sheung Fong
  • Publication number: 20060261797
    Abstract: A low-dropout regulator with a single-transistor-control providing improved transient response and stability is disclosed. The single-transistor-control provides a dynamic resistance at the output of the regulator for minimizing undershoot and overshoot, and hence improves transient response. Since the single-control transistor reduces the output resistance of the regulator, the output pole is pushed to a sufficiently high frequency without affecting stability. Therefore, the limited choice of combinations of the output capacitance and its equivalent-series-resistance is substantially relaxed.
    Type: Application
    Filed: March 7, 2006
    Publication date: November 23, 2006
    Applicant: The Hong Kong University of Science and Technology
    Inventors: Tsz Man, Chi Leung, Ka Leung, Philip Mok, John Chan
  • Publication number: 20060154386
    Abstract: An apparatus and method are provided for aligning a plurality of semiconductor devices placed on a carrier. Alignment guides are located adjacent to each device in use, and arranged such that they correspond to a desired alignment of each semiconductor device. For alignment, the semiconductor devices are held by a positioning device comprising a plurality of holders, each holder being configured to generate a force to hold a semiconductor device. Actuators are also provided that are operative to move the positioning device and holders to bias the semiconductor devices against the alignment guides to orientate the semiconductor devices until they are aligned with said alignment guides.
    Type: Application
    Filed: January 7, 2005
    Publication date: July 13, 2006
    Inventors: Chi Cheng, Hoi Tang, Tim Mak, Chi Leung