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City University of Hong Kong Patents
Assignee:
City University of Hong Kong
Address:
Hong Kong, CN
No. of patents:
88
Patents:


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Patent Number Title Of Patent Date Issued
8578670 Construction structure and method of making thereof November 12, 2013
A construction structure includes a substrate made of a concrete material and has an external surface, and a reinforcement attachment made of a metallic material having an outwardly facing surface and an inwardly facing surface. The attachment is secured to the substrate with the inw
8575856 Driver circuit for powering a DC lamp in a non-DC lamp fitting November 5, 2013
A driver circuit for adapting an LED lamp or an LED lamp array to be used in a lamp fitting for a non-LED type lamp without modification of the lamp fitting. The LED lamp or LED lamp array can be inserted into the lamp fitting as a replacement for a non-LED lamp. The driver circuit has
8568680 Gas treatment by catalytic ozone oxidation October 29, 2013
In one embodiment, a catalyst for ozone oxidation of pollutant components dispersed in a gas is provided. The ozone oxidation catalyst has a porous body formed from a metal body, a ceramic, or polymeric fibers coated with metal. A catalytic noble metal composition is deposited on the sur
8299753 Inductive battery charger system with primary transfomer windings formed in a multi-layer struct October 30, 2012
There is provided a planar inductive battery charging system designed to enable electronic devices to be recharged. The system includes a planar charging module having a charging surface on which a device to be recharged is placed. Within the charging module and substantially paralle
8288165 Molecular heterobimetallic chemodosimetric sensor for the detection of biogenic amines October 16, 2012
The invention relates to using heterobimetallic coordination polymers and their uses as chemodosimeters for sensing materials for the screening of specific biogenic amines.
8269456 Secondary module for battery charging system September 18, 2012
There is provided a planar inductive battery charging system designed to enable electronic devices to be recharged. The system includes a planar charging module having a charging surface on which a device to be recharged is placed. Within the charging module and parallel to the charg
8264270 Method and apparatus to provide active cancellation of the effects of the parasitic elements in September 11, 2012
Reducing, suppressing or canceling series parasitic inductance and/or resistive effects that affect the frequency response of components, elements and/or circuits in an electronic circuit or system that exhibit capacitance is disclosed. Noise generated by series parasitic inductance
8228025 Electronic control method for a planar inductive battery charging apparatus July 24, 2012
This invention provides an electronic control method for a planar inductive battery charging apparatus on which one or more electronic loads such as mobile phones, MP3 players etc can be placed and charged simultaneously. The power control circuit of the charging pad consists of two
8217371 Luminescent system July 10, 2012
A luminescent system includes a layer of donor material, an acceptor material and a barrier layer therebetween. The energy transfer between the donor and acceptor is biased to the acceptor layer, by an asymmetric energy transfer efficiency created by the barrier layer. Energy from the
8213707 System and method for 3D measurement and surface reconstruction July 3, 2012
A system and method for measuring and surface reconstruction of a 3D image of an object comprises a projector arranged to project a pattern onto a surface of an object to be imaged; and a processor stage arranged to examine distortion or distortions produced in the pattern by the sur
8205609 Solar heat absorbing window June 26, 2012
A window with an integral solar heat-absorber is provided in a compact, low-cost package. Two transparent panes are separated from one another to provide a first passageway for receiving a working fluid. The periphery of the panes is secured in a frame in which a heat exchanger is also
8175398 Method for encoding a plurality of video signals into a single video signal May 8, 2012
A method of encoding video signals into a single video signal includes extracting background images from corresponding video signals, encoding the video signals into a single video signal, the single video signal containing information for reconstructing the video signals, and replac
8169201 Output compensator for a regulator May 1, 2012
An output compensator for a regulator is provided that can improve the dynamic response of a regulator, and which does not require the redesigning of the power conversion stage or control stage of the regulator, but simple circuit connection of the compensator circuit to the output s
8158011 Method of fabrication of cubic boron nitride conical microstructures April 17, 2012
A conical structure of cubic Boron Nitride (cBN) is formed on a diamond layered substrate. A method of forming the cBN structure includes steps of (a) forming diamond nuclei on a substrate, (b) growing a layer of diamond film on the substrate, (c) depositing a cBN film on said diamond
8138841 Apparatus and method for controlling the output phase of a VCO March 20, 2012
A method and apparatus controlling the output phase of a VCO (Voltage Controlled Oscillator). The apparatus has a phase locked loop 20 having a first input 21 for receiving a reference signal and a second input 22 for receiving a feedback signal and the output for controlling of a VCO. A
8125154 Automatic lamp detection method and optimal operation for fluorescent lamps February 28, 2012
There is provided a method that can detect the lamp type of fluorescent lamps and operate the lamp at the appropriate lamp power. The proposed method involves the classification of lamp characteristics of existing fluorescent lamps and the use of logic detection method such as a fuzzy
8120445 Planar EMI filter comprising coreless spiral planar windings February 21, 2012
An EMI filter for use between a power source and an electronic product is formed of at least one planar element including a pair of opposed coreless spiral planar windings, and a planar capacitor. This enables the integration of common mode and differential mode filters into integrated
8119254 Organic electroluminescent devices formed with rare-earth metal containing cathode February 21, 2012
There are disclosed rare-earth metal containing electron-injecting electrodes which are particularly effective for use with organic LED devices used in electroluminescent structures and which may in particular be formed as transparent electrodes for use in transparent or surface emit
8119208 Apparatus and method for focused electric field enhanced plasma-based ion implantation February 21, 2012
There is disclosed an apparatus and method for focused electric field enhanced plasma-based ion implantation. The apparatus includes an implantation chamber, a vacuum pump for maintaining the pressure in the implantation chamber at a desired level, a sample holder, means for applying
8115537 Method and apparatus for suppressing noise caused by parasitic capacitance and/or resistance in February 14, 2012
Reducing, suppressing or canceling parallel parasitic capacitance and/or resistive effects that affect the frequency response of components, elements and/or circuits in an electronic circuit or system that exhibit inductance is disclosed. Noise generated by parallel parasitic capacit
8107268 Passive lossless snubber cell for a power converter January 31, 2012
A passive lossless snubber cell for a switched-mode power converter comprises an energy absorbing circuit and an energy resetting circuit coupled to said energy absorbing circuit. The energy absorbing circuit is arranged to release energy stored in a snubber capacitor of the energy a
8102235 Coreless printed-circuit-board (PCB) transformers and operating techniques therefor January 24, 2012
Optimal operating techniques are disclosed for using coreless printed-circuit-board (PCB) transformers under (1) minimum input power conditions and (2) maximum energy efficiency conditions. The coreless PCB transformers should be operated at or near the `maximum impedance frequency`
8101526 Method of making diamond nanopillars January 24, 2012
A method for fabricating diamond nanopillars includes forming a diamond film on a substrate, depositing a metal mask layer on the diamond film, and etching the diamond film coated with the metal mask layer to form diamond nanopillars below the mask layer. The method may also comprise
8086434 Methods for optimal operation of light emitting diodes December 27, 2011
LED illumination systems are formed with a suitable choice of LED and/or heatsink, such that an optimum operating power is identified using computer modeling for a desired output luminous flux, given the constraints of the rated power of the LED and the heatsink.
8055025 Motion estimation method November 8, 2011
A motion estimation method uses a search start point and a plurality of search paths extending from the start point. The method finds an image point along the plurality of search paths that has a minimum comparison value with a reference image block. This image point with a minimum c
8049301 Semiconductor transformers November 1, 2011
A planar transformer structure, which can be constructed in an integrated semiconductor circuit without using traditional metallic windings. To avoid large thermal expansion of metallic spiral windings and associated mechanical stress on a metal-semiconductor interface, it is suggested
8048541 Organic electroluminescence device November 1, 2011
An electroluminescence device has an anode, a cathode and an emitting layer located between the anode and the cathode. The emitting layer contains a compound selected from a group consisting of neutral red and its derivatives.
8040103 Battery charging apparatus with planar inductive charging platform October 18, 2011
A battery charging apparatus comprises an inductive charging platform including a charging surface on which an electrical device to be charged is to be placed, and a first winding for generating lines of magnetic flux generally perpendicular to the charging surface. To compensate for
8019804 Method and apparatus for calculating an SSD and encoding a video signal September 13, 2011
The present invention relates to a method and apparatus for calculating the Sum of Squared Differences (SSD) between a source block and a reconstructed block of image or video data encoding according to an encoding scheme such as H.264/AVC. In a preferred embodiment, the method compu
8009930 Auto-calibration method for a projector-camera system August 30, 2011
A method for self-recalibration of a structured light vision system including a camera and a projector. A camera plane and a projector plane are defined, a Homography matrix between the camera plane and the projector plane is computed, and a translation vector and a rotation matrix a
8007910 Ultrahard multilayer coating comprising nanocrystalline diamond and nanocrystalline cubic boron August 30, 2011
A multilayer coating (MLC) is composed of two chemically different layered nanocrystalline materials, nanodiamond (nanoD) and nano-cubic boron nitride (nono-cBN). The structure of the MLC and fabrication sequence of layered structure are disclosed. The base layer is preferably nanoD
7999744 Wideband patch antenna August 16, 2011
A patch antenna has a ground plane and a planar antenna plate that are parallel to and spaced from each other. A pair of planar feed plates have feed edges electrically contacting a surface of the antenna plate to couple electromagnetic energy into and/or out of the antenna plate.
7999624 Radiation source August 16, 2011
A source of radiation comprises a first low frequency oscillator 200 for providing a reference signal and a plurality of phase shifters 210a, 210b, 210c coupled to the first oscillator. In addition there are a plurality of phase locked loops 230a, 230b, 230c, each phase locked loop h
7994985 Isolation enhancement technique for dual-polarized probe-fed patch antenna August 9, 2011
The present invention provides a patch antenna comprising a patch spaced from a ground plane and two L-shaped feed probes. Each feed probe is connected to a respective input port and has a portion extending parallel to the patch. The antenna further includes at least two walls extending
7976568 Device for correcting spinal deformities July 12, 2011
The present invention relates generally to a device of and a method for correcting spinal deformities, such as scoliosis and kyphosis. The invention employs the superelasticity or pseudoelasticity, such as found in a nickel-titanium alloy, to provide a continuous, predictable, and co
7932782 Average power efficiency enhancement and linearity improvement of microwave power amplifiers April 26, 2011
A biasing circuit is used to provide low distortion and high efficiency operation of a microwave power amplifier. The biasing circuit utilizes the nonlinear rectified current of a microwave diode or transistor for biasing the amplifying transistor self-adaptively. The biasing current
7915942 Apparatus and method for calibrating a variable phase shifter March 29, 2011
A reference signal is split and input to first and second variable phase shifters 10, 20. The first and second variable phase shifters output to first and second inputs 31, 32 respectively of a phase comparator 30. Initially, the first and second variable phase shifters 10, 20 are pr
7915858 Localized charging, load identification and bi-directional communication methods for a planar in March 29, 2011
Methods and principles are described for systematizing localized charging, load identification and bi-directional communication in a planar battery charging system. Also described is control circuitry for selectively energizing a primary winding when a load is placed on the platform. The
7893771 Wideband linearization and adaptive power management for microwave power amplifiers February 22, 2011
A power amplifier includes a bipolar transistor and a self-adaptive bias network situated between an RF input and the base of the bipolar transistor. The self-adaptive bias network suppresses the low frequency even-order intermodulation components. The self-adaptive bias network stab
7872445 Rechargeable battery powered portable electronic device January 18, 2011
There is provided a planar inductive battery charging system designed to enable electronic devices to be recharged. The system includes a planar charging module having a charging surface on which a device to be recharged is placed. Within the charging module and parallel to the charg
7849088 Representation and extraction of biclusters from data arrays December 7, 2010
Gene expression, or other data is analyzed for the presence of biclusters. The data is represented as geometric data. Lines, planes and/or hyperplanes are detected in the geometric data using a transform such as a Hough Transform or its variations. The detected lines, planes and hype
7843389 Complementary wideband antenna November 30, 2010
A complementary wideband antenna includes a planar dipole formed of two dipole sections and a shorted patch antenna located between the dipole sections, the dipole sections being spaced above a ground plane. A variety of different feed probe designs can be used to excite the antenna.
7826133 Doped polymeric optical waveguide amplifiers November 2, 2010
A polymer-based optical waveguide amplifier comprises a polymer host material doped with rare earth ions wherein the polymer host material is a material that functions as a resist in a direct patterning technique. The polymer host material can be epoxy novalac resin doped with Er.sup.3+
7799154 Concrete reinforcement September 21, 2010
A method of reinforcing a concrete structure includes attaching an amount of reinforcing material onto a concrete or masonry substrate and attaching at least one cover plate on top of the reinforcing material onto the substrate.
7768371 Coreless printed-circuit-board (PCB) transformers and operating techniques therefor August 3, 2010
Optimal operating techniques are disclosed for using coreless printed-circuit-board (PCB) transformers under (1) minimum input power conditions and (2) maximum energy efficiency conditions. The coreless PCB transformers should be operated at or near the `maximum impedance frequency`
7741621 Apparatus and method for focused electric field enhanced plasma-based ion implantation June 22, 2010
There is disclosed an apparatus and method for focused electric field enhanced plasma-based ion implantation. The apparatus includes an implantation chamber, a vacuum pump for maintaining the pressure in the implantation chamber at a desired level, a sample holder, means for applying
7711227 Optical fiber May 4, 2010
An optical fiber is described in which the cladding is provided with a refractive index that increases in a radially outward direction. In particular embodiments the refractive index of the cladding increases monotonically from a low value to a value close to or higher than the refra
7645513 Cubic boron nitride/diamond composite layers January 12, 2010
Cubic boron nitride/diamond (cBND) composite films with excellent adherence to various substrates and their fabrication method are disclosed. The cBND composite confining cBN can be prepared without any amorphous/turbostratic BN (aBN/tBN) incubation layers. The cBND composite is esta
7589474 Ion source with upstream inner magnetic pole piece September 15, 2009
A closed drift ion source is disclosed. The ion source has an open end 1 and a central axis 150 around which are arranged outer magnetic pole piece 3, inner magnetic pole piece 5, anode 2, shield 6 and back magnetic shunt 17. In one embodiment the anode 2 and inner magnetic pole piece 5
7579759 Surface acoustic wave (SAW) devices based on cubic boron nitride/diamond composite structures August 25, 2009
A surface acoustic wave (SAW) device which is made of cBN/diamond composite structures and the fabrication method are disclosed. In the SAW device based on cubic boron nitride and diamond composite structures, the diamond hard layer includes randomly-oriented polycrystalline diamond
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