Patents by Inventor Ka Leung

Ka 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).

  • Patent number: 9485124
    Abstract: Methods and apparatus for encoding data for wireless transmission are disclosed in which a data message may be encoded into a transmission code as a first coding format and a second coding format. The first coding format characterized by a first bit representation and the second coding format characterized by a second bit representation different from the first bit representation. The transmission code may be transmitted having the first and second coding formats.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: November 1, 2016
    Inventors: Gallen Ka Leung Tsui, Philip Y. W. Tsui
  • Patent number: 9343990
    Abstract: The invention provides a low current consumption control switch device and method related thereto. The control switch device includes a switch control component, a microprocessor, a wireless signal receiver for receiving control signal and a DC power supply. The DC power supply draws an AC current from the AC power supply to power the wireless signal receiver, the microprocessor and the switch control component. The switch control component has a control input for receiving control instructions to control current supply from the AC power supply. The microprocessor is operatively connected to the switch control component for providing control instructions to alter its switching state. The control signal comprises a preamble and a message portion. The wireless signal receiver is configured to alternate between at least two current consumption modes and to remain in a higher current consumption mode upon detection of the preamble.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: May 17, 2016
    Inventors: Philip Yu Wing Tsui, Gallen Ka Leung Tsui
  • Publication number: 20160130284
    Abstract: The present invention discloses a new modality of photodynamic therapy (PDT) through the design of the present invention's truly dual-functional—PDT and imaging—gadolinium complex (Gd-N) with a molecular formula of: which can target cancer, cells specifically. The present invention provides a PDT drug that can specifically localize on the anionic cell membrane of cancer cells in which its laser-excited photoemission signal can be monitored without triggering the phototoxic generation of reactive oxygen species—singlet oxygen—prior to due excitation. The present invention also provides the use of Gd-N as a tumor selective PDT photosensitizer modality.
    Type: Application
    Filed: November 5, 2015
    Publication date: May 12, 2016
    Inventors: Ka-Leung WONG, Wai-Kwok WONG, Rongfeng LAN, Tao ZHANG
  • Publication number: 20160094247
    Abstract: A memory device may include memory components to store data. The memory device may also include a processor that may decode a codeword associated with the data. The processor may receive the codeword and determine whether the codeword is independently decodable using a BCH decoder. The processor may then decode the codeword using the BCH decoder when the codeword is determined to be independently decodable using the BCH decoder. Otherwise, the processor may decode the codeword using a second decoder and the BCH decoder when the codeword is not determined to be independently decodable using the BCH decoder.
    Type: Application
    Filed: September 30, 2014
    Publication date: March 31, 2016
    Inventors: Sivagnanam Parthasarathy, Nicholas Julian Richardson, Patrick Robert Khayat, Mustafa Nazmi Kaynak, Ka Leung Ling, Robert B. Eisenhuth
  • Patent number: 9279215
    Abstract: The present invention relates to methods of making articles, and systems for providing wool articles having self-cleaning properties. The self-cleaning properties are brought about coating the wool articles with a photocatalyst formulation. The formulation contains titanium compounds, stabilizers, catalysts, and water.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: March 8, 2016
    Assignees: The Hong Kong Polytechnic University, Australian Wool Innovation Limited
    Inventors: Walid Abdelhamid Daoud, Sze Kar Leung, Wing Sze Tung, Hao Zhong John Xin, Ka Leung Kevin Cheuk, Xiaowen Wang, Yee Yee Kong, Kaihong Qi
  • Publication number: 20160045782
    Abstract: An abdomen exerciser includes a connecting element, a first roller, a second roller and a holding component. The connecting element includes two connector and two roller bearings, each connector has a receiving groove, a plurality of locating pores and a plurality of limiting slots. The connectors are connected with the first roller and the second roller respectively. The holding component is received in the receiving grooves. The holding component includes a plurality of ball bearings and a plurality of limiting elements, the ball bearings are locked in the locating pores, the limiting elements are received in the limiting slots.
    Type: Application
    Filed: August 17, 2015
    Publication date: February 18, 2016
    Inventor: Ka Leung Wong
  • Publication number: 20160045776
    Abstract: A torsion bar includes a housing and at least one inner core. The housing has a receiving space, two opposite fixing grooves defined a sidewall of the housing and communicating with the receiving space, and a plurality of strips positioned at outer surface thereof. The inner core is received in the receiving space, and comprises two opposite fixing elements corresponding to the fixing grooves. Each of the fixing elements including a plurality of first protruding portions located at a side end thereof to facilitate that user disengages the inner core from the housing, and a plurality of second protruding portions located at a surface thereof adjacent to the side end to prevent the inner core from disengaging accidently from the housing. A cross-section of the receiving space is similar to a cross-section of the inner core.
    Type: Application
    Filed: August 17, 2015
    Publication date: February 18, 2016
    Inventor: Ka Leung Wong
  • Publication number: 20150334336
    Abstract: A control system and a method that controls a display system are provided. The control system receives sensing signals from one or more sensors and controls the display of items based on the sensing signals received. In an embodiment, the control system controls at least a display panel that plays multimedia content. In an embodiment, the control system controls the movement of items on display in accordance with the multimedia played on the display panel. In an embodiment, the control system controls lighting effects within a display area containing the item on display during the display. In an embodiment, the control system controls audio media that is played during the display.
    Type: Application
    Filed: May 18, 2015
    Publication date: November 19, 2015
    Inventors: Jason Felix Tsz-Kiu Chiu, Ka Leung Sin
  • Publication number: 20150124164
    Abstract: A display system and a method for displaying items and/or performances is provided. At least a display panel is used to play multimedia content. In an embodiment, at least a portion of the display panel turns transparent for displaying items or performances in a display space. In an embodiment, the display item is moved in accordance with the multimedia played on the display panel. In an embodiment, light effects are adjusted during the display. In an embodiment, audio media is played and adjusted during the display.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 7, 2015
    Inventors: Ka Leung Sin, Jason Felix Tsz-Kiu Chiu
  • Patent number: 8976002
    Abstract: A universal remote control system is disclosed. The universal remote control includes a receiver that has a wireless signal receiver unit, an electric motor that drives a mechanical arm and a microprocessor. When the receiver receives a control signal from a wireless signal transmitter, the microprocessor will energize the motor which drives the mechanical arm toward a pushbutton switch of a controlled device, such as a garage door opener, and depresses the push button, therefore activating the garage door opener. A feedback signal, for example, from the mechanical arm or the motor, may be provided to the microprocessor to inform the microprocessor when the pushbutton switch is sufficiently depressed and is in an engaged state. When the switch is in the engaged state, the motor will reverse its direction, causing the mechanical arm to raise and move back to a standby position.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: March 10, 2015
    Inventors: Philip Yu Wing Tsui, Gallen Ka Leung Tsui
  • Patent number: 8957766
    Abstract: An apparatus and methods are provided for a universal transmitter. In one embodiment, a method includes detecting activation of at least one button of the universal transmitter, by a controller, for a predetermined time, outputting at least one set of signals to a first set of terminals of a switch of the universal transmitter, detecting output on a second set of terminals of the switch and determining position of a switch, by the controller, based, at least in part, on the output detected on the second set of terminals, wherein position of the switch relates to a transmission type. The method can further include detecting activation of a first button to be programmed and programming the first button based on the transmission type.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: February 17, 2015
    Inventors: Gallen Ka Leung Tsui, Philip Y. W. Tsui
  • Patent number: 8901292
    Abstract: A method of mass production of tetrakis(p-nitrophenyl)porphyrins, by which successful isolation of the barely soluble product from meso-aryl nitration of tetraphenylporphyrin toward a remarkable yield of nearly 90% has been realized by means of a solid phase extraction technique. This is a simpler and more straight forward synthetic method, suitable production at an industrial scale with lower cost, shorter synthetic time and lower solvent consumption.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: December 2, 2014
    Assignee: The Hong Kong Polytechnic Univeristy
    Inventors: Kevin Ka Leung Cheuk, John Haozhong Xin, Priscilla Pui Sze Lee, Zhi Xue
  • Patent number: 8679588
    Abstract: The present invention relates to methods of making articles, and systems for providing wool article have self-cleaning properties. The self-cleaning properties are brought about coating the wool articles with a photocatalyst formulation. The formulation contains titanium compounds, stabilizers, catalysts, and water.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: March 25, 2014
    Assignees: The Hong Kong Polytechnic University, Australian Wool Inovation Limited
    Inventors: Walid Abdelhamid Daoud, Sze Kar Leung, Wing Sze Tung, Hao Zhong John Xin, Ka Leung Kevin Cheuk, Xiaowen Wang, Yee Yee Kong, Kaihong Qi
  • Publication number: 20140055234
    Abstract: A universal remote control system is disclosed. The universal remote control includes a receiver that has a wireless signal receiver unit, an electric motor that drives a mechanical arm and a microprocessor. When the receiver receives a control signal from a wireless signal transmitter, the microprocessor will energize the motor which drives the mechanical arm toward a pushbutton switch of a controlled device, such as a garage door opener, and depresses the push button, therefore activating the garage door opener. A feedback signal, for example, from the mechanical arm or the motor, may be provided to the microprocessor to inform the microprocessor when the pushbutton switch is sufficiently depressed and is in an engaged state. When the switch is in the engaged state, the motor will reverse its direction, causing the mechanical arm to raise and move back to a standby position.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 27, 2014
    Inventors: Philip Yu Wing TSUI, Gallen Ka Leung TSUI
  • Publication number: 20130190486
    Abstract: A method of mass production of tetrakis(p-nitrophenyl)porphyrins, by which successful isolation of the barely soluble product from meso-aryl nitration of tetraphenylporphyrin toward a remarkable yield of nearly 90% has been realized by means of a solid phase extraction technique. This is a simpler and more straight forward synthetic method, suitable production at an industrial scale with lower cost, shorter synthetic time and lower solvent consumption.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 25, 2013
    Inventors: Kevin Ka Leung Cheuk, John Haozhong Xin, Priscilla Pui Sze Lee, Zhi Xue
  • Patent number: 8446101
    Abstract: A method and apparatus are provided for operating a control switch. In one embodiment, the control switch includes an input terminal coupled to an alternating current (AC) power supply, a load terminal coupled to a load, a triac circuit coupled to the input terminal and the load terminal, a microcontroller and a power supply. The triac circuit may be configured to receive a triggering voltage and provide an activation pulse to the load based on one or more triggering voltage signals supplied by the microcontroller. In another embodiment, the power supply may be configured to step down AC power received from the input terminal and supply line voltage to the microcontroller.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: May 21, 2013
    Inventors: Gallen Ka Leung Tsui, Philip Y. W. Tsui
  • Patent number: 8417880
    Abstract: A system comprising a NAND flash memory device having a multiplicity of parameters; a flash controller configured to perform a NAND flash memory parameter automatic detection process including reading a device identifier of the NAND flash memory device and proceeding if a valid device identifier value is returned, detecting an address cycle and a block type of the NAND flash memory device, detecting a page size of the NAND flash memory device, detecting a spare size of the NAND flash memory device, detecting a memory size of the NAND flash memory device, and detecting a block size of the NAND flash memory device.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: April 9, 2013
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Chi Ho Lam, Ka Leung Ho
  • Patent number: 8310339
    Abstract: A system and methods are provided for triggering an operating device. In one embodiment, a triggering device includes a receiving unit configured to receive one or more wireless control signals. The receiving unit may include a switch and a processor, wherein the processor is configured to control the switch for activation of an operating device coupled to a signaling line based, at least in part, on the one or more wireless control signals. According to another embodiment, the triggering device may include a connector configured to electrically couple the receiving unit to the signaling line, the connector having one or more contacts and a housing configured to clasp the signaling line and couple the one or more contacts to the signaling line. Additionally, the signaling line may relate to existing wiring of the operating device.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: November 13, 2012
    Inventors: Gallen Ka Leung Tsui, Philip Y. W. Tsui
  • Publication number: 20120199759
    Abstract: The present invention relates to methods of making articles, and systems for providing wool article have self-cleaning properties. The self-cleaning properties are brought about coating the wool articles with a photocatalyst formulation. The formulation contains titanium compounds, stabilizers, catalysts, and water.
    Type: Application
    Filed: October 11, 2011
    Publication date: August 9, 2012
    Inventors: Walid Abdelhamid DAOUD, Sze Kar Leung, Wing Sze Tung, Hao Zhong John Xin, Ka Leung Kevin Cheuk, Xiaowen Wang, Yee Yee Kong, Kaihong Qi
  • Publication number: 20120110241
    Abstract: A system comprising a NAND flash memory device having a multiplicity of parameters; a flash controller configured to perform a NAND flash memory parameter automatic detection process including reading a device identifier of the NAND flash memory device and proceeding if a valid device identifier value is returned, detecting an address cycle and a block type of the NAND flash memory device, detecting a page size of the NAND flash memory device, detecting a spare size of the NAND flash memory device, detecting a memory size of the NAND flash memory device, and detecting a block size of the NAND flash memory device.
    Type: Application
    Filed: November 1, 2010
    Publication date: May 3, 2012
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Chi Ho Lam, Ka Leung Ho