Patents Assigned to Hong Kong Polytechnic University
  • Patent number: 8345971
    Abstract: A method for spatial-temporal denoising and demosaicking for noisy color filter array (CFA) video, the method including applying spatial-temporal CFA video denoising (11) to the CFA video in order to generate a denoised CFA, applying initial color demosaicking (CDM) (19) to the denoised CFA video in order to generate a demosaicked video, and applying spatial-temporal post-processing (26) to the demosaicked video in order to reduce CDM artifacts and CDM errors and enhance the quality of the video.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: January 1, 2013
    Assignee: The Hong Kong Polytechnic University
    Inventors: Lei Zhang, Weisheng Dong, Hainlong Zhu
  • Patent number: 8329425
    Abstract: Fast and simple method of detecting the presence of chloramphenicol, a harmful compound if present in food products. The method makes use of a mutant chloramphenicol acetyltransferase (CAT) and a fluorophore-linked chloramphenicol in a system where chloramphenicol and the fluorophore-linked chloramphenicol competes for the active site of the mutant CAT. Because the fluorophore-linked chloramphenicol reduces its fluorescence upon binding to the active site and vice versa increases its fluorescence upon being displaced from the active site by the presence of unmodified chloramphenicol in a sample, the increase of fluorescence caused by a testing sample indicates the presence of chloramphenicol.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: December 11, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Kwok-Yin Wong, Yun Chung Leung, Pak Ho Chan, Wai Hong Chung, Ka Yan Chow, Ho yin Chow, Hon Man Leung
  • Publication number: 20120302888
    Abstract: This invention relates to a radial array ultrasound endoscopic probe and its manufacture method and a fixing and rotating device. The probe comprises: a metal cylinder located at the center; a plurality of piezoelectric elements which are cut from piezoelectric ceramic or single crystal rings and arranged around the metal cylinder, said piezoelectric elements and said metal cylinder being provided with a backing material layer for absorbing sound therebetween, said piezoelectric elements being covered with a matching material layer on the outer side thereof, and said piezoelectric elements are filled with decoupling material therebetween; a plurality of coaxial cables correspondingly connected with the plurality of piezoelectric elements; and a circular lattice in a gear shape which sleeves over said metal cylinder and functions to arrange and separate the coaxial cables.
    Type: Application
    Filed: May 23, 2012
    Publication date: November 29, 2012
    Applicant: The Hong Kong Polytechnic University
    Inventors: Jiyan Dai, Kwok Fung Cheung, Dan Zhou, Yat Ching Chiu, Kwok Ho Lam, Yan Chen, Helen L. W. Chan
  • Patent number: 8318498
    Abstract: The present invention relates to the use of cyclometalated iridium complexes for detecting poly(amino acids) including peptides, polypeptides, and proteins. Poly(amino acids) are detected in solution, in electrophorectic gels, and on solid supports, including blots. The method of the present invention is rapid, highly sensitive, and extremely facile.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: November 27, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Kwok-Yin Wong, Dik-Lung Ma, Wing-Leung Wong, Wai-Hong Chung, Fung-Yi Chan
  • Patent number: 8318922
    Abstract: Antisense oligonucleotides that inhibit expression of human replication-initiation protein as well as methods of preventing or treating hyperproliferative conditions using said oligonucleotides are disclosed. One aspect provides an antisense oligonucleotide that inhibits the expression of human replication-initiation protein and has a sequence complementary to at least a portion of a target sequence encoding a human replication-initiation gene. By administering a therapeutically effective amount of an antisense oligonucleotide or by contacting the hyperproliferating cells with an effective amount of one or more antisense oligonucleotides, expression of replication-initiation protein is inhibited. Methods of screening and testing active antisense oligonucleotides for their ability to inhibit gene expression are also disclosed.
    Type: Grant
    Filed: May 24, 2008
    Date of Patent: November 27, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chun Liang, Dao-rong Feng, Zhi-ling Yu
  • Patent number: 8309167
    Abstract: This invention relates to methods of making single phase nanocrystalline titanium dioxide. It is hereby provided a method for preparing single-phase anatase type titanium dioxide photocatalyst having a particle size of nano level at near room temperatures without the need for a sintering process at high temperatures.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: November 13, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Walid Abdelhamid Daoud, John Haozhong Xin, Kaihong Qi
  • Publication number: 20120282631
    Abstract: A method of identifying and classifying non-small-cell lung carcinoma in a biological sample includes a first test wherein the expression level of at least one biomarker is measured in a sample, the at least one=biomarker is selected from a first group consisting of chaperonin, 2,3-bisphosphoglycerate mutase, thymidine phosphorylase, and minichromosome maintenance deficient protein 5, and comparing the measured expression levels against a normal expression level, wherein a significant difference diagnoses or aids in the diagnosis of non-small cell lung carcinoma; and a second test wherein the expression level of at least one biomarker is measured in the sample, the at least one biomarker is selected from a second group consisting of selenium binding protein and Napsin A, and comparing the measured expression level against a normal expression level, wherein a significant difference confirms or aids in confirmation of Non-Small Cell Carcinoma.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 8, 2012
    Applicant: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Samuel Chun Lap LO, Yoki Kwok Chu BUTT, Wallace Woon Fong LEUNG
  • Publication number: 20120281093
    Abstract: A detection system (5) for assisting a driver when driving a vehicle, the system (5) comprising: a plurality of image capturing devices (98) mounted to the vehicle to capture images of the external environment of the vehicle; an image processing module (95) to identify potential hazards in real-time from the captured images and to superimpose information of the external environment relating to the identified potential hazards; and at least one display device (92) to display images processed by the image processing module in real-time; wherein the superimposed information is provided in an area of the display device (92) to ensure visual clarity of the images of the external environment.
    Type: Application
    Filed: April 19, 2012
    Publication date: November 8, 2012
    Applicant: The Hong Kong Polytechnic University
    Inventors: Bernard Cheuk Mun Fong, Wan Chi Siu
  • Patent number: 8303693
    Abstract: A filtration medium includes a fine filter layer having a plurality of nanofibers and a coarse filter layer having a plurality of microfibers attached to the fine filter layer. The coarse filter layer is positioned proximal to a direction of fluid flow, and the fine filter layer is positioned distal to the direction of fluid flow.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: November 6, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventor: Wallace W. Leung
  • Publication number: 20120276796
    Abstract: The present invention describes a novel antibacterial treatment on textile materials using polymeric core-shell particles dispersing in water. These particles are prepared from a surfactant-free emulsion polymerization according to the method of U.S. Pat. No. 6,573,313 and have average particle sizes in the range of 100 to 1000 nm in diameter. When applied to a textile article, the particles form a uniform coating, which prevents the growth of bacteria and microbes. The treatment does not affect the fabric mechanical properties, hand feeling and appearance. Antibacterial activity on cotton is maintained even after 50 times of home laundering.
    Type: Application
    Filed: July 11, 2012
    Publication date: November 1, 2012
    Applicant: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: John Haozhong XIN, Pei LI, Weijun YE
  • Patent number: 8298131
    Abstract: A system (10) for relaxation, the system (10) comprising: electrodes (15) worn by a user to measure the electrocardiogram (ECG) of the user; a processor (18) to process the ECG to remove noise and analyse the ECG signal in the time and frequency domains, and compute an index of stress (33) from the processed ECG; and a multimedia device (14) to provide real-time biofeedback by communicating the index of stress (33) to the user together with a relaxation video (31) to cause the user to relax.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: October 30, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Joanne Wai Yee Chung, Thomas Kwok Shing Wong, William Chi Keung Cheung, Benny Yat Sing Lam, Suk Yin Chow, Henry Chi Fuk So
  • Publication number: 20120263911
    Abstract: An apparatus for reducing pilling on a piece of garment/fabric includes at least one holding member adapted to secure the piece of garment/fabric, a rotatable brush member adapted to brush on the piece of garment/fabric until loose fibres of the garment/fabric migrates to a surface of the garment/fabric to form a layer of pillable fuzz, a shaving member adapted to remove the layer of pillable fuzz on the piece of garment/fabric, and a control unit adapted to control movement of the rotatable brush member and the shaving member.
    Type: Application
    Filed: June 11, 2012
    Publication date: October 18, 2012
    Applicant: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Xiaoming Tao, Wai Man Li, Bingang Xu, Kok Keung Lo
  • Publication number: 20120249959
    Abstract: A fundus camera using infrared light sources, which included an imaging optical path and an optical path for focusing and positioning and two optical paths share a common set of retina objective lens, and a computer-assisted method for retinal vessel segmentation in general and diabetic retinopathy (DR) image segmentation in particular. The method is primarily based on Multiscale Production of the Matched Filter (MPMF) scheme, which together the fundus camera, is useful for non-invasive diabetic retinopathy detection and monitoring.
    Type: Application
    Filed: April 1, 2012
    Publication date: October 4, 2012
    Applicant: The Hong Kong Polytechnic University
    Inventors: Jia You, Qin Li, Zhenhua Guo, Qiang Sun, Chun Li
  • Publication number: 20120247976
    Abstract: A non-invasive glucose sensor (10) for detecting an amount of glucose in bodily fluid, comprising: an organic electrochemical transistor (OECT) having a gate electrode (20); wherein a surface of the gate electrode (20) is modified with an enzyme and a nanomaterial to increase sensitivity and selectivity of the gate electrode (20).
    Type: Application
    Filed: March 29, 2011
    Publication date: October 4, 2012
    Applicant: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Feng Yan, Helen L.W. Chan, Hao Tang
  • Patent number: 8277678
    Abstract: A magnetic composition for power conversion includes a thermoplastic polymer and magnetic powders. The composition has a tensile strength of greater than 20 N/mm2.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: October 2, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Ka Wai Eric Cheng, Yuen Wah Wong, Wei Tai Wu, Kai Ding, Yiu Lun Ho, Tsz Kong Cheung, Chi Keong Cheong
  • Patent number: 8274368
    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: Grant
    Filed: March 2, 2009
    Date of Patent: September 25, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Kai Leung Yung, Ching Yuen Chan, David Ki Wai Cheng
  • Patent number: 8273036
    Abstract: A wearable portable device (10) for increasing user awareness of a paretic limb and recording the user awareness, the device (10) comprising: a sensory signal generator (52, 20) to emit a continuous sensory signal to remind the user to move the paretic limb according to a predetermined schedule; a switch (13) to be actuated by the user for stopping the emission of the sensory signal; and an accelerometer (61) to detect movement of the paretic limb in 3-axis; wherein after the switch (13) is actuated by the user, the user is instructed to move the paretic limb in accordance with predetermined instructions and the movement of the paretic limb detected by the accelerometer (61) and response time of when the switch (13) is actuated after the sensory signal is emitted are recorded for analysis by data analysis software.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: September 25, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventor: Nai Kuen Fong
  • Publication number: 20120232135
    Abstract: A method of reducing tumor cell growth, the method including administering an effective amount of a compound having the formula:
    Type: Application
    Filed: March 9, 2012
    Publication date: September 13, 2012
    Applicants: The Hong Kong Polytechnic University, McGill University, University of South Florida, Wayne State University
    Inventors: Tak-Hang CHAN, Wai-Har Lam, Larry Ming-Cheung Chow, Qing Ping Dou, Deborah Joyce Kuhn, Aslamuzzaman Kazi, Sheng Biao Wan, Kristin R. Landis-Piwowar
  • Patent number: 8263388
    Abstract: An apparatus for detecting the presence of a microorganism in a sample includes a housing that includes a base fixed with a first DNA primer having a nucleotide sequence that is complementary to a DNA sequence of the microorganism of interest, a fibrinogen-splitting agent that is bound with a second DNA primer having a nucleotide sequence that is also complementary to a DNA sequence of the microorganism of interest, a rinsing unit configured to rinse the housing; and a fibrinogen adding unit configured to add fibrinogen to the housing so that the fibrinogen chemically reacts with the fibrinogen-splitting agent to produce a viscous substance, an ultrasonic emitter configured to emit ultrasonic signal to the housing, and an ultrasonic receiver configured to receive ultrasonic signal from the housing and transmit the received ultrasonic signal to an ultrasonic analyzer, wherein the ultrasonic analyzer determines whether the microorganism of interest exists.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: September 11, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chun Lap Samuel Lo, Derek Siu Wing Or
  • Patent number: RE43851
    Abstract: A method for treating progression of a refractive disorder in a human eye. The method includes the steps of producing a first image on a retina of the human eye and producing a second image to generate a defocus.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: December 11, 2012
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chi Ho To, Siu Yin Lam, Yan Yin Tse