Patents by Inventor Yu Yeung

Yu Yeung 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: 20130149970
    Abstract: Systems and methods which provide local sensor and/or external information derived proactive aiming assistance with respect to wireless nodes for facilitating desired wireless links are shown. Embodiments provide an aiming assistance user interface providing guidance with respect to properly altering the orientation of a wireless node to provide a desired wireless link. To facilitate providing aiming assistance embodiments of wireless nodes are adapted to include a plurality of sensors operable to provide information useful in environmental analysis for determining proactive orientation guidance information. Wireless nodes adapted according to embodiments additionally or alternatively utilize information obtained externally useful in determining proactive orientation guidance information. Embodiments of the invention utilize the foregoing sensor information and externally sourced information to determine proactive orientation guidance information.
    Type: Application
    Filed: June 29, 2011
    Publication date: June 13, 2013
    Applicant: Pismo Labs Technology Ltd.
    Inventors: Travis Durick, Yu Yeung, Ming Pui Chong, Alex Wing Hong Chan
  • Patent number: 7844147
    Abstract: A system for dynamic waveform shaping in an optical fiber comprising: the optical fiber receiving an optical waveform, the optical waveform having individual spectral lines; a plurality of fiber bragg gratings in-line on the optical fiber, each having a reflectivity wavelength corresponding to one of the spectral lines; a plurality of polarization controllers in-line on the optical fiber, each polarization controller receiving the optical waveform from a respective fiber bragg grating; a circulator for directing the optical waveform as input to the plurality of fiber bragg gratings and receiving the optical waveform as output from the plurality of fiber bragg gratings; and a polarizer in-line on the optical fiber receiving the optical waveform from the fiber bragg gratings and the polarization controllers.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: November 30, 2010
    Assignee: Governing Council of the Univeristy of Toronto
    Inventors: Yu Yeung Ho, Li Qian
  • Publication number: 20090257715
    Abstract: A system for dynamic waveform shaping in an optical fiber comprising: the optical fiber receiving an optical waveform, the optical waveform having individual spectral lines; a plurality of fiber bragg gratings in-line on the optical fiber, each having a reflectivity wavelength corresponding to one of the spectral lines; a plurality of polarization controllers in-line on the optical fiber, each polarization controller receiving the optical waveform from a respective fiber bragg grating; a circulator for directing the optical waveform as input to the plurality of fiber bragg gratings and receiving the optical waveform as output from the plurality of fiber bragg gratings; and a polarizer in-line on the optical fiber receiving the optical waveform from the fiber bragg gratings and the polarization controllers.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 15, 2009
    Applicant: THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO
    Inventors: YU YEUNG HO, LI QIAN
  • Patent number: 7267405
    Abstract: A chair with a synchronous coordinating system for the chair back includes a base, a chair cushion and a chair back. The base and the chair cushion are connected fixedly or formed integrally, and the chair back is articulated with the base which is articulated with the chair back through an upright column extended above the chair cushion. The articulated point is located at the trochanter (the center point of the hip joint) of the human body. The chair cause the turning (pitched or inclined) pivot of the chair back and the human body on the same line by providing the articulated point of the chair back and the base at the trochanter of the human body in the pitching movement. No matter how the angle of the chair back is adjusted, the contact surface between the backside of the human body and the chair back will not be changed so that the chair back can provide sufficient supporting force to the waist at any angle and the person on the chair will not feel uncomfortable.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: September 11, 2007
    Inventor: Yu Yeung Tin
  • Patent number: 6009431
    Abstract: Disclosed is an apparatus for quickly generating an error free MIB file of the type used by a SNMP manager to manage and display error and log trap messages received from agents reporting to said manager. This is accomplished by retrieving data from definition and template libraries to be used in conjunction with a network element database to correctly generate, element by element, a completed MIB file.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: December 28, 1999
    Assignee: Northern Telecom Limited
    Inventors: Thomas J. Anger, Shing Yu Yeung, Joyce Bradley, Steven J. Crossley
  • Patent number: 5887294
    Abstract: Apparatus and a process is provided for restricting that portion of the flow of water which is directed through a tube to refill the bowl of a toilet after a flush. Typically, the bowl refills before the toilet tank fills so that some water overflows the bowl and is wasted down the sewer. Accordingly, a conduit is connected to the discharge of the bowl refill tube. The conduit has a tapered bore which diminishes continuously from its inlet to its outlet. The diameter of the bore at the conduit's outlet does not permit sufficient water to discharge and refill the bowl after a flush. The conduit is formed of material which is readily cut. An objective bowl water is established. In a process of progressively trimming back the outlet of the conduit, an ever larger and larger diameter bore is exposed, increasing the amount of water discharged.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: March 30, 1999
    Inventor: Kwong Yu Yeung
  • Patent number: D503889
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: April 12, 2005
    Assignee: Far East (Wu's) Industrial Co LTD
    Inventor: Wai Yu Yeung
  • Patent number: D497221
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: October 12, 2004
    Assignee: Far East (Wu's) Industrial Co LTD
    Inventor: Wai Yu Yeung