Patents Assigned to The Hong Kong Polytechnic University
  • Method for signal denoising using continuous wavelet transform
    Publication number: 20100010780
    Abstract: The present invention relates to a novel method for signal denoising utilizing a continuous wavelet transform. The method preferably utilizes derivatives of Gaussian functions.
    Type: Application
    Filed: July 10, 2008
    Publication date: January 14, 2010
    Applicant: The Hong Kong Polytechnic University
    Inventor: Hailong Zhu
  • Three-tier reflective nanofibrous structure
    Publication number: 20100003877
    Abstract: The present invention provides a three-tier reflective nanofibrous structure having a woven or nonwoven substrate, a polymeric nanofibers web on the substrate, and an infrared radiation reflection coating on the web. The present nanofibrous structure has good reflection to heat radiation in the near infrared, has good resistance to heat conduction, has good permeability to water vapor moisture, and is light weight. A method of fabricating both radiation relective and nanofibrous structure is also presented.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 7, 2010
    Applicant: The Hong Kong Polytechnic University
    Inventors: Jintu Fan, Huijun Wu
  • Smart thermal textile for acupuncture therapy
    Publication number: 20100004720
    Abstract: The present invention relates to a smart textile capable of providing acupuncture therapy to the wearer through strategically positioned electrodes throughout the textile, connected via silver coated fabric. Through the instant invention, heat therapy can be applied to specific points on the body, while being safe due to the absence of wires.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 7, 2010
    Applicant: The Hong Kong Polytechnic University
    Inventors: Li Li, Raymond Wai-man Au, Thomas K.S. Wong, Yi Li, Joanne W.Y. Chung, Sai Ho Wan
  • Multi-function three-phase active power filter
    Publication number: 20100001588
    Abstract: A new multi-function shunt active filter has been successfully implemented. The proposed decoupler and cascade controller provide a simple solution to power factor correction, reduction of harmonics loads and load balancing. The mathematical burden of resolving the load current to fundamental and harmonics is not required. The decoupler and controller can easily be implemented using low-cost analogue devices.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 7, 2010
    Applicant: The Hong Kong Polytechnic University
    Inventors: Kai Ming Tsang, Wai Lok Chan
  • Ligands for transition-metals and methods of use
    Publication number: 20090326243
    Abstract: The present invention relates to indolyl phosphine ligands, and methods of making such ligands utilizing phenyl hydrazines and aryl ketones as the starting material. The present invention further includes uses of the ligands in the synthesis of pharmaceuticals, materials, and agriculture.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: The Hong Kong Polytechnic University
    Inventors: Fuk Yee Kwong, Chau Ming So
  • Mounting mechanism for removable bollard
    Patent number: 7637470
    Abstract: The present invention provides a mounting mechanism for a removable bollard, which has high flexibility and convenience for the removal and reinstallation of the bollard and the socket for inserting the bollard can be covered without having additional devices after the removal of the bollard.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: December 29, 2009
    Assignee: The Hong Kong Polytechnic University
    Inventor: Kin Wai Michael Siu
  • PARTIAL FINGERPRINT RECOGNITION
    Publication number: 20090310831
    Abstract: A method for partial fingerprint recognition, the method comprising the steps of extracting features including ridge orientations, valley images, minutiae, and pores from at least two fingerprint fragments, aligning the fingerprint fragments, matching the pores and minutiae on the fingerprint fragments after applying estimated alignment transformation, calculating a final matching score based on a pore matching score and a minutiae matching score, identifying a person based on a result of the final matching score.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 17, 2009
    Applicant: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: David Zhang, Qijun Zhao, Nan Luo, Guangming Lu
  • Isothermal forming system for production of sheet metal parts
    Publication number: 20090288466
    Abstract: The present invention relates to an apparatus for attachment to a conventional sheet metal forming press. The apparatus allows the sheet metal forming process to be preformed fully submerged in an oil. Methods for sheet metal forming in oil are also provided.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 26, 2009
    Applicants: The Hong Kong Polytechnic University, Ameroll Metal Products Company Limited
    Inventors: Chak Yin Tang, Tai Chiu Lee, Luen Chow Chan, Nga Yung Ng
  • Methods and apparatus of aligning surfaces
    Patent number: 7619749
    Abstract: Ultra-precision freeform surfaces are important to the development of complex and micro-optical-electro-mechanical devices used in many photonics and telecommunication products such as F-theta lenses for laser printers. These surfaces are complex and large scale surface topologies with shapes that generally possesses no rotational symmetry. Due to the geometrical complexities of these ultra-precision freeform surfaces, it is difficult to characterize the form accuracy and surface quality of freeform optical surfaces.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: November 17, 2009
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chi-Fai Cheung, Huifen Li, Wing-Bun Lee, Suet To, Lingbao Kong
  • 1D and 2D composite lenticular films and fabrication methods
    Patent number: 7619823
    Abstract: A composite lenticular film includes a first layer having a first refractive index, and a second layer having a second refractive index less than the first refractive index. The second layer is integrally attached to the first layer. The first layer has at least one row of protruding lenses.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: November 17, 2009
    Assignee: Hong Kong Polytechnic University
    Inventors: Xiao-ming Tao, Xiaohong Sun
  • Method for asymmetric alkynylation of alpha-imino esters
    Patent number: 7612239
    Abstract: Method for the preparation of asymmetric alkynylated ?-amino esters of the formula wherein R1 and R2 are independently optionally substituted alkyl cycloalkyl, aryl or heteroaryl, and Y is hydrogen or a nitrogen protecting group.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: November 3, 2009
    Assignee: The Hong Kong Polytechnic University
    Inventors: Albert S Chan, Jian-Xin Ji, Jing Wu
  • CHIPLESS MICROWAVE IDENTIFICATION TAG
    Publication number: 20090267739
    Abstract: A chipless microwave identification tag (200) comprising: a dielectric substrate (210); and a plurality of antenna elements (220) made from a conductive material and disposed on at least one surface (205, 255) of the dielectric substrate (210); wherein when the tag (200) is excited by an incident microwave signal (131), a reflected wave (141) to identify the tag (200) is generated with a number of specific frequencies altered by microwave resonation of the antenna elements (220).
    Type: Application
    Filed: March 2, 2009
    Publication date: October 29, 2009
    Applicant: The Hong Kong Polytechnic University
    Inventors: Kai Leung Yung, Ching Yuen Chan, David Ki Wai Cheng
  • ROBOTIC SYSTEM AND TRAINING METHOD FOR REHABILITATION USING EMG SIGNALS TO PROVIDE MECHANICAL HELP
    Publication number: 20090259338
    Abstract: A robotic system for rehabilitation using EMG signals to provide mechanical help includes EMG electrodes (6) sequentially connected in series, a DAS card (2) and a control portion (1), and further includes an actuator (3) connected to the DAS card (2) and an additional moment providing portion (4) connected to the actuator (3). The EMG electrodes sense EMG signals corresponding to the muscle of suffering joint, and input the sensed EMG signals to the control portion (1) through the DAS card (2). The control portion (1) uses the input EMG signals and a constant moment set as desired to calculate an additional moment to be applied to the suffering joint, and additional moment providing portion (4) is controlled to apply the corresponding additional moment to the suffering joint through the DAS card (2) and the actuator (3).
    Type: Application
    Filed: April 28, 2007
    Publication date: October 15, 2009
    Applicant: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Kaiyu Tong, Rong Song
  • HID ballast with integrated voltage multiplier and lamp temperature compensation
    Publication number: 20090251076
    Abstract: The present invention relates to temperature compensation of HID lamps in automobiles. The invention concerns the manner in which the temperature of the HID lamp is accounted for in order to drive the lamp is at appropriate power from hot to cold conditions. In the present invention, the voltage across a capacitor in the temperature compensation circuit is sensed and used as a command signal to anticipate lamp temperature, and accordingly the reference power to the HID lamp is modulated depending on the temperature of the lamp. In the present invention, the lamp is driven with a higher power setting when the lamp is cold and with lower power setting when hot. This adaptive generation of reference power setting depending on the temperature of the lamp is implemented using the voltage across a capacitor in the temperature compensation circuit.
    Type: Application
    Filed: March 9, 2009
    Publication date: October 8, 2009
    Applicant: The Hong Kong Polytechnic University
    Inventors: Eric Ka Wai Cheng, Bangalore Prabhakar Divakar, Dao Hong Wang, Norbert Chow Cheung
  • System for storage shelving and methods of use thereof
    Publication number: 20090243797
    Abstract: The present invention relates to a system for product storage and methods of categorizing, storing, and delivering products to end users via the system, the system's components including a processor, a “smart shelving” device, boxes for insertion into and utilization by the “smart shelving” device, and ID readers. Through the present invention, products are able to be securely and more certainly delivered to the proper recipient of the products.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Applicant: The Hong Kong Polytechnic University
    Inventors: Wallace Woon-Fong Leung, King-Lun Kwok, Mau-Wah Chan, So-Lam Sze
  • Chiral tertiary aminoalkylnaphthols
    Patent number: 7592487
    Abstract: The invention relates to the compounds of formula: (I) which are as defined in the specification. Their use as chiral ligands in catalytic aryl transfer reactions to aromatic aldehydes is also described.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: September 22, 2009
    Assignee: The Hong Kong Polytechnic University
    Inventors: Albert Sun-Chi Chan, Jianxin Ji
  • Methods and systems for transceiving chaotic signals
    Patent number: 7593531
    Abstract: A digital communication system based on the use of chaotic carriers is disclosed. For each symbol to be sent, the transmitter sends a reference chaotic signal followed by a transformed version of the reference chaotic signal. For different symbols, different transformations are performed. Also, the transformations are designed such that the transformed versions of the reference chaotic signal do not resemble the original reference chaotic signal. As a consequence, little information can be deduced by inspecting the frequency spectrum of the transmitted signal. Moreover, even if the communication could be detected, it is difficult to decode the messages because there are numerous transformations possible.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: September 22, 2009
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chung-Ming Lau, Chi-Kong Tse
  • Underwire assembly for brassiere, brassiere using the same, and process for producing and wearing the brassiere
    Patent number: 7591707
    Abstract: An underwire assembly for use in a brassiere including an elongate support member of three-dimensional elongate form. The supporting member extends in at least two planes for conforming to an inferior profile of the breast of a wearer.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: September 22, 2009
    Assignee: The Hong Kong Polytechnic University
    Inventors: Winnie Yu, Jintu Fan, Rong Zheng
  • Microfluidic mixing using continuous acceleration/deceleration methodology
    Publication number: 20090225625
    Abstract: The present invention relates to a method for microfluidic mixing in a “lab-on-a-chip” environment. The methodology focuses on constant acceleration and deceleration about a mean angular speed with a rotating disk serving as the mixing platform. The methodology results in good mixing between different fluids.
    Type: Application
    Filed: March 10, 2008
    Publication date: September 10, 2009
    Applicant: The Hong Kong Polytechnic University
    Inventor: Wallace Woon-Fong Leung
  • Method of detecting vibrio parahaemolyticus via real-time PCR-hybridization
    Publication number: 20090226895
    Abstract: The present invention relates to an assay and methods for determining the presence of pathogenic V. parahaemolyticus in a sample. Determination should be made by detector. Via the assay, rapid, real-time detection of V. parahaemolyticus is possible.
    Type: Application
    Filed: September 4, 2007
    Publication date: September 10, 2009
    Applicant: The Hong Kong Polytechnic University
    Inventors: Hang Mei Polly Leung, Shea Ping Yip, Shing Shun Tony To, Lek Hang Constance Lo