Chung, Hong Kong
Andrew Chung, Hong Kong CN
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20090002152 | PORTABLE ALARM TRANSMITTER FOR COMPLIANCE MONITORING - A portable alarm transmitter for compliance monitoring detects whether a user is wearing the device. If not, a special alarm signal is sent to the monitoring service provider so that remedial actions can be taken. The alarm transmitter comprises a motion sensor, and an algorithm thereby for detecting whether the alarm device is being worn by the user. The alarm transmitter distinguish between non-compliance (e.g. user has taken off the alarm device) versus other “activities of daily living (ADL) that may appear to be non-compliance events (e.g. sleeping) by incorporating user stimulus and user response. | 01-01-2009 |
Charles S Chung, Hong Kong HK
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20100274734 | Credit Portfolio Benchmarking System and Method - A portfolio benchmarking system comprises a repository of trade data, a repository of consumer data, a build computer, and a benchmarking query application. The repository of trade data comprises a plurality of data items regarding trade lines. The repository of consumer data comprises a plurality of data items regarding consumers, wherein at least some information in the consumer data is not in the trade data and at least some information in the trade data is not in the consumer data. The build computer periodically generates at least one data file comprising a plurality of data items, each data item combining information from the trade data and the consumer data, such that searches can be performed on the combined data without joining trade data and consumer data at query run time. The benchmarking query application executes queries on the data file generated by the build computer. | 10-28-2010 |
Chee-Keung Chung, Hong Kong CN
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20100104605 | Method for preventing and treating influenza - The present invention provides a method for making pressure-induced ganoderma spores, for using the pressure-induced ganoderma spores to ameliorate and/or prevent influenza in a mammal; and to stimulating the host immune system in a mammal. The method for making the pressure-induced ganoderma spores includes (1) soaking ganoderma spores in a solution; (2) drying the soaked ganoderma spores using a freeze-drying or a vacuum-drying method; (3) breaking the sporoderms of the dried ganoderma spores with enzyme or a mechanical method; (4) pressurizing and depressurizing the sporoderm-broken ganoderma spores to obtain the pressure-induced sporoderm-broken ganoderma spores. The methods for ameliorating and/or preventing influenza, and for stimulating the host immune system include orally administering a composition comprising the pressure-induced ganoderma spores to a mammal susceptible to or suffering from influenza. The present invention also provides the pressure-induced ganoderma spores. | 04-29-2010 |
Cheung Tung Chung, Hong Kong HK
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20150353865 | CENTRIFUGATION DEVICE AND METHODS FOR ISOLATION OF BIOMASS FROM ALGAE MIXTURE AND EXTRACTION OF OIL FROM KITCHEN RESIDUE - A centrifugation device includes a feeding tube defining a longitudinal axis, and a plurality of centrifugal plates extending longitudinally and radially around the feeding tube and rotatable about the longitudinal axis. The centrifugal plates have coarse surfaces coated with one or more layers of polymer material. A centrifugation tank is disposed coaxially with the feeding tube and around the centrifugal plates. A sidewall of the tank is provided with micro/nano filters. Methods for isolation of algal biomass from an algae and aqueous mixture, and extraction of oil from kitchen residue and/or microalgae are also disclosed. | 12-10-2015 |
Chi Leung Chung, Hong Kong HK
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20120036897 | CIRCULAR KNITTED FABRIC WITH FINISHED EDGES AND INTEGRAL ELASTIC BAND-LIKE SELVEDGE AND THE METHOD OF MANUFACTURING THE SAME - A circular knitted fabric for the manufacture of a garment includes a first group of courses formed of a low melting point yarn and a first yarn, and a continuing second group of courses formed of the low melting point yarn and a second yarn. The second group of courses has an elastane content greater than that of the first group of courses. The low melting point yarn fuses with the first and second yarns after heating to a temperature sufficient to melt the low melting point yarn only. The fabric, after finishing, is adapted to be cut into a garment in such a way that the first group of courses becomes a body or the first group of courses of the garment, and the second group of courses becomes an integral elastic band portion or the second group of courses-like selvedge of the garment. | 02-16-2012 |
Chi Ming Tony Chung, Hong Kong HK
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20100079576 | DISPLAY SYSTEM AND METHOD - A display system is disclosed as including first and second visual display units (VDU's), each for displaying visual images for viewing; a first digital video camera for capturing images of a first individual viewing images displayed by the first VDU; at least second and third digital video cameras for capturing, each from a different angle, images of a second individual viewing the second VDU; in which the first digital video camera is connectable with the second VDU for transmitting the captured images to the second VDU for display; and the first VDU is connectable with either of the second and third digital video cameras for display of images captured by either of the second and third digital video cameras; means for identifying the position of the centre point between the eyes of the captured images of the first individual against a capture window of the first digital video camera; and means for selectively connecting the first VDU with the second digital video camera or the third digital video camera in accordance with the identified position of the centre point between the eyes of the first individual. A visual display apparatus is also disclosed as including a visual display unit supported by a table, the table including a closable opening; a reflector movable relative to the table between a first position in which the reflector closes the opening and a second position in which the opening is open and images displayed by the visual display unit are reflectable by the reflector for viewing; and an end of the reflector is slidably and swivellably movable relative to the table for movement between the first and second positions. | 04-01-2010 |
Ching Ching Jenny Chung, Hong Kong CN
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20100069087 | PERSONAL TRACKING DEVICE WITH LOW POWER CONSUMPTION - An portable tracking device integrating a mobile phone module (e.g. based on GSM or 3G networks), a GPS module, a radio Beacon and ultrasonic beacon. The tracking device is normally in a hibernated state when the entire device consumes little energy and require no periodically changing or recharging batteries to power the device. It consumes power from the primary battery only when a tracking process is actually taken place. With this portable tracking device on the person who is unable to affirmatively report his or her whereabout, the remote center and/or a search team can communicate the GPS module, radio beacon and ultrasonic beacon of the tracking device via the mobile phone module based on existing wireless communication technologies, such SMS, GPRS, ect, on GSM or 3 G networks, which also serves as a means of initial rough estimation of the tracking device's location. | 03-18-2010 |
Chi-Yung Chung, Hong Kong HK
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20140361742 | ELECTRIC VEHICLE CHARGER - An electric vehicle charger includes a DC/DC converter and control circuits. The DC/DC converter includes an inverter module; a transformer module connected to the inverter module; and a converter module connected to the transformer module. The control circuits includes a multi-loop feedback control system connected to the converter module; and gate driving circuits connected to the multi-loop feedback control system and the inverter module. The inverter module includes an IGBT bridge. The transformer module includes a transformer. The converter module includes a diode rectifier bridge. | 12-11-2014 |
20150130407 | Three-Coil Topology for Wireless Power Transfer - A system using a three-coil topology for wireless power transfer is disclosed. The system comprises a primary resonator coupled to a power source, a repeater resonator and a receiver resonator. The primary resonator has a primary coil, and the repeater resonator has a repeater coil adjacent to the primary coil. The repeater coil and the primary coil are separated by a distance selected, and the repeater coil is configured, to amplify a primary-coil current by inductively generating a repeater-coil current that is substantially greater than the primary-coil current. A magnetic field contributed from both the primary-coil current and the repeater-coil current is generated while the power source needs not provide a terminal voltage across the repeater coil, thereby discouraging occurrence of voltage stress at the power source. The receiver resonator has a receiver coil, which receives the magnetic field to inductively generate a receiver-coil current for feeding to a load. | 05-14-2015 |
Chul Chung, Hong Kong HK
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20120303501 | Method and Apparatus for Reference Data Scrubbing - A system, medium storing processor-executable process steps, method and apparatus for supporting a derivative transaction, the method including receiving data identifying a reference entity participating in the derivative transaction; receiving data identifying at least a first reference obligation associated with the derivative transaction; identifying a contractual relationship between the reference entity and the at least first reference obligation; and generating a data record associated with the derivative transaction, the data record including the data identifying said reference entity, the data identifying the at least first reference obligation, and data identifying said contractual relationship, wherein the data record is verified as accurate as of an issue date of the derivative transaction. | 11-29-2012 |
Chun Yick Chung, Hong Kong CN
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20120219438 | FUEL PUMP MOTOR - A motor for a fuel pump includes a rotor which includes a shaft, a rotor core and a commutator fitted on the shaft. The rotor core is formed by stacking together a plurality of aligned laminations and includes a plurality of salient poles arranged along a circumference thereof. A center line of gravity of the rotor deviates from a rotational axis of the rotor. The rotor core has a first groove in one of the poles close to the center line of gravity of the rotor. The first groove extends from a first axial end of the rotor core to an axial middle portion of the rotor core. | 08-30-2012 |
Gordon Chung, Hong Kong HK
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20120032718 | Digital Phase Lock System with Dithering Pulse-Width-Modulation Controller - A Digital Phase-Locked Loop (DPLL) has a digitally-controlled oscillator (DCO) that generates an output clock frequency determined by a digital input with most-significant-bits (MSB's) and a least-significant-bit (LSB). The LSB is generated by a Pulse-Width-Modulation (PWM) controller clocked by a control clock that is the output clock divided by C. A reference clock is compared to a feedback clock that is the output clock divided by M. The PWM controller generates M/C LSB's for each reference clock period and loads them in parallel to a parallel-to-serial shift register that serially delivers the LSBs. The pulse width is determined by a fine digital loop filter that filters phase comparison results using a fine time resolution. A coarse digital loop filter generates the MSB's from phase comparison results using a coarse time resolution. LSB waveforms are dithered by randomly selecting high-going or low-going pulses and randomly adjusting pulse widths. | 02-09-2012 |
20140028395 | Op-Amp Sharing by Swapping Trans-Conductance Cells - A two-stage op amp has a transconductance cell in a second stage modified to match a transconductance cell in a first stage. A transconductance swap network is inserted between transconductance cells and trans-impedance cells, such as current-steering networks, current mirrors, or drivers connected to the transconductance cells. The transconductance swap network directly connects the first transconductance cell to the first stage trans-impedance cell during a second clock phase, but crosses-over the first transconductance cell to the second-stage trans-impedance cell during a first clock phase. A first switched-capacitor network drives the gates of differential transistors in the first transconductance cell by alternately sampling an input and feedback, and equalizing to reset inputs. A second first switched-capacitor network drives differential transistors in the second transconductance cell, but during opposite clock phases. Two independent inputs are sampled by the switched-capacitor networks and alternately amplified by swapping connections within the shared op amp. | 01-30-2014 |
Henry Shu Hung Chung, Hong Kong HK
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20100283436 | METHOD AND APPARATUS FOR SUPPRESSING NOISE CAUSED BY PARASITIC CAPACITANCE AND/OR RESISTANCE IN AN ELECTRONIC CIRCUIT OR SYSTEM - 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 capacitance and/or parasitic resistance of the components, the physical orientation of the components, and/or the layout of components, devices and/or conductive tracks (board traces) on printed circuit boards within an electronic circuit or system is reduced, suppressed or canceled. The reduction, suppression or cancelation is achieved by adding a current source in parallel with a part or component of the electronic circuit or system that exhibits inductance, the current source being adapted to deliver a compensating current of roughly equal magnitude and roughly opposite phase to parasitic current associated with the part or component. | 11-11-2010 |
20100283437 | METHOD AND APPARATUS FOR SUPPRESSING NOISE CAUSED BY PARASITIC INDUCTANCE AND/OR RESISTANCE IN AN ELECTRONIC CIRCUIT OR SYSTEM - 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 and/or parasitic resistance of the components, the physical orientation of the components, and/or the layout of components, devices and/or conductive tracks (board traces) on printed circuit boards within an electronic circuit or system is reduced, suppressed or canceled. The reduction, suppression or cancellation is achieved by adding a voltage source in series with a part or component of the electronic circuit or system that exhibits capacitance, the current source being adapted to deliver a compensating voltage of roughly equal magnitude and roughly opposite phase to parasitic voltage associated with the part or component. | 11-11-2010 |
20100283438 | OUTPUT COMPENSATOR FOR A REGULATOR - 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 stage of the regulator. The compensator senses an output signal at a passive component at an output of the regulator; generates a compensating signal based on a difference signal, the difference being a difference between a level of a reference signal for the regulator and the sensed output signal; and applies the compensating signal to the passive output component to reduce the difference between the level of the reference signal and the sensed output signal. The passive output component may be, for example, a capacitor or an inductor, depending on the operation of the regulator. | 11-11-2010 |
Henry Shu Hung Chung, Hong Kong CN
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20120274237 | APPARATUS OR CIRCUIT FOR DRIVING A DC POWERED LIGHTING EQUIPMENT - An apparatus that can operate with electronic ballasts ( | 11-01-2012 |
Hing Shing Chung, Hong Kong CN
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20110147144 | MOTOR AND ELECTRIC PARKING BRAKE SYSTEM - A motor for actuating brake members of an electric parking (EPB) system, comprises a stator and a rotor rotatably mounted to the stator. The rotor comprises a shaft, a commutator, a rotor core fixed to the shaft, and rotor windings wound about teeth of the rotor core and electrically connected to segments of the commutator. The rotor windings comprise a plurality of winding units, each of the wining units comprising at least two coils. The coils of each winding unit are wound about the same teeth and connected to a same pair of segments. | 06-23-2011 |
Hing Yip Chung, Hong Kong CN
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20130135530 | SYSTEMS AND METHODS FOR TRIGGERING AN OUT OF FOCUS ALERT - In order to trigger an out of focus alert when the focus level of a video frame meets a focus criteria, a method is performed including the operations of: receiving a video frame, partitioning the video frame into a plurality of blocks, calculating an array of discrete cosign transformation (DCT) coefficients for at least one of the plurality of blocks using a DCT, classifying each of the at least one of the plurality of blocks based on the array of DCT coefficients for that block, calculating a focus level of the video frame from the block classifications, and triggering an out of focus alert if the focus level meets a focus criteria. | 05-30-2013 |
Hing Yip Chung, Hong Kong HK
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20090033796 | SYSTEMS AND METHODS FOR TRIGGERING AN OUT OF FOCUS ALERT - In order to trigger an out of focus alert when the focus level of a video frame meets a focus criteria, a method is performed including the operations of: receiving a video frame, partitioning the video frame into a plurality of blocks, calculating an array of discrete cosign transformation (DCT) coefficients for at least one of the plurality of blocks using a DCT, classifying each of the at least one of the plurality of blocks based on the array of DCT coefficients for that block, calculating a focus level of the video frame from the block classifications, and triggering an out of focus alert if the focus level meets a focus criteria. | 02-05-2009 |
Ho Pun Chung, Hong Kong HK
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20130083884 | Filter Status Techniques Adapted For Use With A Container Based Filtration Device - A filter status module for use with a container based filtration device includes a dispensing sensor and a user interface communicatively coupled to a processing unit. The processing unit counts a number of dispensing events, duration and/or angle of tilt signaled by the dispensing sensor and outputs a filter status on the user interface as a function of the number of dispensing events, duration and/or angle of tilt. The processing unit may further track an elapsed period of time from insertion of a new filter and output the filter status as a further function of the elapsed period of time. | 04-04-2013 |
Hsin Min Chung, Hong Kong CN
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20120174282 | Performance Apparel With Flexible Portion - Athletic garments are disclosed. The garment may comprise: a base layer having a front surface and a back surface; a first flexible layer disposed on the front surface and the back surface of the base layer, the first flexible layer having a plurality of voids forming a first lattice pattern; and a second flexible layer disposed on the front surface and the back surface of the base layer, the second flexible layer having a plurality of voids forming a second lattice pattern. | 07-12-2012 |
Joanne Wai Yee Chung, Hong Kong CN
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20090076422 | Smart acupressure pen and methods of administering acupressure - The present invention relates to an acupressure pen and methods of acupressure treatment, wherein said pen is capable of determining the optimal range for treatment on a particular acupoint, and recalling such optimal range during subsequent treatments. Through the use of a grid system, infrared communicator, and microcontroller, the pen is capable of being set and storing results in a matrix. | 03-19-2009 |
Joanne Wai Yee Chung, Hong Kong HK
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20080269832 | Device and method for sleep apnea management using SpO2 - The present invention relates to an anti-sleep apnea device including two electrodes and a pulse oximeter, adapted to be disposed on the user's wrist for releasing electrical pulses to an acupoint of the user, and a method of monitoring and treating sleep-apnea, whereby monitoring occurs via a pulse oximeter and treatment occurs by providing electrical stimulation to specific acupoint on the user. | 10-30-2008 |
Kai Cheung Chung, Hong Kong HK
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20140176238 | DC OFFSET CANCELLATION FOR A MULTI-STAGE AMPLIFIER - This invention provides a multi-stage amplifier incorporating DC offset cancellation. The amplifier has a plurality of series-connected gain stages each of which comprises a differential amplifier unit generating a pair of differential outputs from a pair of differential inputs. In particular, a trailing stage in the plurality of gain stages comprises a digital DC offset cancellation module configured to compensate for a DC offset of the trailing stage's differential amplifier unit. The digital DC offset cancellation module comprises a comparator coupled to the pair of differential outputs of the trailing stage's differential amplifier unit for receiving such differential outputs as inputs for the comparator. Preferably, the comparator has an inherent DC offset that is substantially small. It is preferable that a non-trailing stage of the amplifier comprises an analog DC offset cancellation module for compensating for a DC offset of the non-trailing stage. | 06-26-2014 |
Kenny Ka Kin Chung, Hong Kong CN
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20130137762 | COMPOSITION FOR TREATING NEURODEGENERATIVE DISEASE OR NEUROPATHOLOGICAL CONDITION - This invention relates to extracts and refined fractions of a traditional Chinese medicinal herb, | 05-30-2013 |
Koon For Chung, Hong Kong CN
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20120255184 | HAND-HELD KNOCKOUT PUNCH DRIVER - A hand-held knockout punch driver for use with a punch and a die. The hand-held knockout punch driver having a body with a handle portion and a contact surface, a motor positioned within the body, a draw stud moveable with respect to the body, and a magnetic coupling member configured to releaseably couple the die to the contact surface of the body. | 10-11-2012 |
Luke Chung, Hong Kong CN
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20090207884 | METHOD OF MEASURING TEMPERATURE OF TUNNEL MAGNETORESISTIVE EFFECT ELEMENT - A method of measuring temperature of a TMR element includes a step of obtaining in advance a temperature coefficient of element resistance of a discrete TMR element that is not mounted on an apparatus, by measuring temperature versus element resistance value characteristic of the discrete TMR element in a state that a breakdown voltage is intentionally applied to the discrete TMR element and a tunnel barrier layer of the discrete TMR element is brought into a stable conductive state, a step of bringing a tunnel barrier layer of a TMR element actually mounted on the apparatus into a stable conductive state by intentionally applying the breakdown voltage to the mounted TMR element having the same structure as that of the discrete TMR element whose temperature coefficient has been measured, a step of measuring an element resistance value of the mounted TMR element with the tunnel barrier layer that has been brought into a stable conductive state, and a step of obtaining a temperature corresponding to the measured element resistance value from the previously measured temperature coefficient of element resistance. | 08-20-2009 |
Luke Hung Leung Chung, Hong Kong CN
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20110211275 | Method of determining flying height of magnetic head - For obtaining a flying height of a magnetic head from a magnetic disk, the magnetic head being placed in a slider arranged at an interval with the magnetic disk, an initial setting process and a flying height detecting process are performed. In the initial setting process, driving power to a heater is increased gradually, from a state where the heater arranged at a position in proximity to the magnetic head in the slider is not driven, until the magnetic head makes contact with the magnetic disk. Then, in each stage, an electrical resistance value of the sensor arranged at a position in proximity to the magnetic head in the slider, which is increased due to the heat from heater, and either an approach distance of the magnetic head toward the magnetic disk or the flying height of the magnetic head from the magnetic disk are acquired. Then, basic data is prepared by obtaining the relationship between a variation of the electrical resistance value of the sensor and the flying height of the magnetic head from the magnetic disk, which is obtained in each stage or which calculated from the approach distance in each stage. In the flying height detecting process, an electrical resistance value of the sensor is determined, and a variation of the electrical resistance value is calculated from the determined values. Then, the flying height of the magnetic head from the magnetic disk in the state where the electrical resistance value was determined is obtained based on the basic data obtained in the initial setting process, using the calculated variation of the electrical resistance value. | 09-01-2011 |
Ming Yau Chung, Hong Kong CN
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20150318767 | Brush Plate - A brush plate has an insulating substrate, at least one pair of brushes mounted on the insulating substrate, and a conductor for supplying power to the brushes. The conductor includes at least one overheat protection portion having a smaller cross sectional area than adjacent portions of the conductor. By integrally forming the overheat protection portions on the conductors, no extra overheat protection device is required. Preferably, the overheat protection portion has a bent structure. The bent structure may be U-shape, Z-shape, M-shape or wave-shape. The bent structure can increase the anti-shock capability of the conductor and shorten the response time of the overheat protection portion. | 11-05-2015 |
Miranda Hoi-Ying Chung, Hong Kong CN
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20150360508 | WHEELS AND VEHICLES COMPRISING THE SAME - The present invention is applicable to the technical field of wheels. Provided are a wheel ( | 12-17-2015 |
Paul Wing Sun Chung, Hong Kong HK
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20090175994 | Toasting Apparatus and Method - An apparatus and method for toasting a piece of bread are disclosed. The apparatus includes a base to support the piece of bread so that the bread can rest thereon. Some heating elements are placed near to the two faces of the bread such that when the bread is conveyed in a horizontal direction while it is kept in a vertical position, the two faces of the bread can be uniformly heated. | 07-09-2009 |
Sheung Chee Chung, Hong Kong CN
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20120078053 | ROBOTIC SYSTEM FOR FLEXIBLE ENDOSCOPY - A robotic manipulator controller and system for use in flexible endoscopy, the manipulator comprising a flexible member configured to be coupled to an endoscope, and an arm connected to and movable by the flexible member, wherein the flexible member has a first end connected to the arm and a second end connectable to the controller to allow a physical movement of the arm to be controllable by a physical movement of the controller. | 03-29-2012 |
Sheung Chee Chung, Hong Kong CH
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20150157191 | Robotic system for flexible endoscopy - A robotic manipulator | 06-11-2015 |
Shu Hung Chung, Hong Kong HK
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20090121675 | ELECTRONIC CONTROL METHOD FOR A PLANAR INDUCTIVE BATTERY CHARGING APPARATUS - 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 power conversion stages. Depending on the nature of the input power supply, the first power stage is an AC-DC power converter with variable output voltage control and a second stage is a DC-AC power inverter with constant current control. The combination of the two stages provides power control of the charging pad and generates AC magnetic flux of ideally constant magnitude over the charging areas within a group of primary windings that are excited. | 05-14-2009 |
20110057639 | PASSIVE LOSSLESS SNUBBER CELL FOR A POWER CONVERTER - 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 absorbing circuit to a storage capacitor of the energy resetting circuit through a resonant pathway of the snubber cell in response to a first switching action of a power converter transistor switch. The energy resetting circuit is arranged to release the energy stored therein to a part of a circuit of the power converter in response to a second switching action of the power converter transistor switch, the second switching action being a successive action to the first switching action. The passive lossless snubber cell has several advantages over existing snubbering techniques. First, it provides zero-current-switching (ZCS) and zero-voltage-switching (ZVS) conditions for turning on and off, respectively, the switch over a wide load range. Second, it does not introduce extra voltage stress on the switch. Third, by taking the ripple current through the switch into account, the peak switch current during the snubber resonance period is designed to be less than the designed switch current without the snubber. Hence, the proposed snubber does not introduce extra current stress on the switch. | 03-10-2011 |
Shu Hung Henry Chung, Hong Kong HK
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20120306403 | DRIVER CIRCUIT FOR POWERING A DC LAMP IN A NON-DC LAMP FITTING - The invention comprises 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 driver circuit is such that the LED lamp or LED lamp array can be inserted into the lamp fitting as a replacement for a non-LED lamp such that the combined unit of the LED lamp and the driver circuit are retained in the lamp fitting and make electrical connections with the lamp fitting's electrical contacts for powering the inserted lamp. The driver circuit enables the LED lamp of lamp array to operate with any of an ac power supply, an electromagnetic ballast or an electronic ballast. The driver circuit comprises a first stage comprising a filter circuit and having an input connectable to any of an ac power supply, an electromagnetic ballast or an electronic ballast of the lamp fitting, a second stage comprising a high frequency switched network and having an input connected to an output of the first stage, and a third stage comprising an ac/dc converter and having an input connected to an output of the second stage and an output connectable to an LED lamp. The third stage is configured to deliver dc power to a connected LED lamp. The second stage is configured to operate in a low frequency mode when said driver circuit is connected to an ac power supply or an electromagnetic ballast of the lamp fitting and configured to operate in a high frequency mode when said driver circuit is connected to an electronic ballast of the lamp fitting. | 12-06-2012 |
20120306408 | ENERGY-RECYCLING BURN-IN APPARATUS FOR ELECTRONIC BALLASTS AND A METHOD OF BURNING-IN ELECTRONIC BALLASTS - An apparatus and method for burning-in an electronic ballast for a lamp. The apparatus comprises a first stage for emulating an input impedance characteristic of a lamp for the electronic ballast and a second stage connected to the first stage for providing energy feedback to a power supply. An input of the first stage connects in use to the electronic ballast to be burnt-in. An output of the second stage connects in use to the power supply to provide energy feedback to said power supply from the electronic ballast being burnt-in. The energy-recyclable burn-in apparatus can emulate the lamp characteristics from start up to the steady state, process high-frequency ballast output power and recycle the power back into the power grid. The burn-in method includes operating the apparatus for a predetermined period of time such that a voltage applied to the electronic ballast simulates a steady-state operation of a lamp for the electronic ballast. | 12-06-2012 |
20130342128 | SYSTEM AND METHOD FOR EMULATING A GAS DISCHARGE LAMP - A system and method for emulating a gas discharge lamp comprising an input arranged to direct electric current from a lamp ballast to a delay circuit, wherein the delay circuit is arranged to establish an electrical communication between the lamp ballast and an electric lamp when a predetermined condition associated with one or more characteristics of the gas discharge lamp is attained. | 12-26-2013 |
20130346002 | SYSTEM AND METHOD FOR ESTIMATING COMPONENT PARAMETERS - A system and a method for estimating component parameters relating to electric components of an electric circuit comprising the steps of receiving one or more sample variables associated with the electric circuit, applying the one or more sample variables to one or more component relationships associated with an arrangement of the electric components of the electric circuit, and processing the one or more component relationships with an approximation process to determine one or more estimated component parameters. | 12-26-2013 |
20150028824 | USB POWER SUPPLY - A universal serial bus (USB) power supply is disclosed as including a main body ( | 01-29-2015 |
Shu-Hung Henry Chung, Hong Kong CN
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20140347896 | DC LINK MODULE FOR REDUCING DC LINK CAPACITANCE - A dc link module for a power circuit includes a first connector for connecting to a first power conversion circuit, a second connector for connecting to a second power conversion circuit, wherein the second power conversion circuit is connected to a load circuit arranged to at least intermittently operate as a power source to the power circuit, at least one dc link capacitors arranged between said first connector and said second connector for processing a voltage signal received at said first connector or said second connector, and at least one voltage compensation circuits arranged between said first connector and said second connector, said one or more voltage compensation circuits arranged to generate a voltage signal | 11-27-2014 |
Sookja Kim Chung, Hong Kong CN
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20090076105 | PREVENTIVE OR THERAPEUTIC AGENT FOR CEREBRAL ISCHEMIC INJURY OR CEREBRAL ISCHEMIA REPERFUSION IN STROKE - The present invention provides a preventive or therapeutic agent for cerebral ischemic injury or cerebral ischemic reperfusion injury in stroke such as cerebral infarction and cerebral hemorrhage which exerts its effect through a different mechanism from that of conventional therapeutic agents and can be taken for along period. The present invention is a preventive or therapeutic agent for cerebral ischemic injury or cerebral ischemic reperfusion injury in stroke which contains 6-fluoro-2′,5′-dioxospiro[chroman-4,4′-imidazolidine]-2-carboxamide as an active ingredient. A particularly preferable compound is an optically resolved (2S,4S)-form of fidarestat. | 03-19-2009 |
20100216856 | PROTECTIVE AGENT FOR RETINAL NERVE OR OPTIC NERVE - The present invention provides a protective agent for retinal nerve or optic nerve which exerts its effect through a different mechanism from that of conventional therapeutic agents and can be taken for long periods. The present invention is the protective agent for retinal nerve or optic nerve which comprises a compound with aldose reductase inhibiting activity such as the compound represented by the following general formula as an active ingredient. A preferable compound thereof is (2S,4S)-6-fluoro-2′,5′-dioxospiro[chroman-4,4′-imidazolidine]-2-carboxamide: | 08-26-2010 |
Stephen Chung, Hong Kong CN
Patent application number | Description | Published |
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20090076105 | PREVENTIVE OR THERAPEUTIC AGENT FOR CEREBRAL ISCHEMIC INJURY OR CEREBRAL ISCHEMIA REPERFUSION IN STROKE - The present invention provides a preventive or therapeutic agent for cerebral ischemic injury or cerebral ischemic reperfusion injury in stroke such as cerebral infarction and cerebral hemorrhage which exerts its effect through a different mechanism from that of conventional therapeutic agents and can be taken for along period. The present invention is a preventive or therapeutic agent for cerebral ischemic injury or cerebral ischemic reperfusion injury in stroke which contains 6-fluoro-2′,5′-dioxospiro[chroman-4,4′-imidazolidine]-2-carboxamide as an active ingredient. A particularly preferable compound is an optically resolved (2S,4S)-form of fidarestat. | 03-19-2009 |
20100216856 | PROTECTIVE AGENT FOR RETINAL NERVE OR OPTIC NERVE - The present invention provides a protective agent for retinal nerve or optic nerve which exerts its effect through a different mechanism from that of conventional therapeutic agents and can be taken for long periods. The present invention is the protective agent for retinal nerve or optic nerve which comprises a compound with aldose reductase inhibiting activity such as the compound represented by the following general formula as an active ingredient. A preferable compound thereof is (2S,4S)-6-fluoro-2′,5′-dioxospiro[chroman-4,4′-imidazolidine]-2-carboxamide: | 08-26-2010 |
Sydney Sheung Chee Chung, Hong Kong CN
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20090216081 | ANASTOMOSIS SYSTEM - There is provided an endoscopic system. | 08-27-2009 |
20130090526 | ANASTOMOSIS SYSTEM - There is provided an endoscopic system. | 04-11-2013 |
Wai Hong Chung, Hong Kong CN
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20120219978 | Method and System for Detection of Chloramphenicol - 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. | 08-30-2012 |
Wai Lung David Chung, Hong Kong HK
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20140362006 | Pointing Device for Interacting with Touch-Sensitive Devices and Method Thereof - The present application is directed to a pointing device and a method for interacting with touch-sensitive devices. The pointing device includes a base; a housing configured to cover a portion of the base; a cavity formed between the housing and the portion of the base; a sliding member; a supporting member; a biasing member situated between the sliding member and the supporting member; a first contact point provided on the sliding member and configured to contact a screen of the touch-sensitive device when the pointing device is placed on the screen; and a second contact point provided on the supporting member and configured to contact the screen when the pointing device is placed on the screen; wherein the first contact point slides on the screen relative to the second contact point via the engagement of the housing and the sliding member when the housing moves towards the screen. | 12-11-2014 |
20150331539 | POINTING DEVICE FOR INTERACTING WITH TOUCH-SENSITIVE DEVICES AND METHOD THEREOF - The present application is directed to a pointing device and a method for interacting with touch-sensitive devices. The pointing device includes a supporting member, first and second contact points fixed on the supporting member and adapted to be in contact with a touch-sensitive layer in a default state, and at least one movable contact point mounted on the supporting member and movable from the default state to a fully depressed state adjacent to the second contact point to form a combined touch area on the touch-sensitive layer having an offset centre that is offset from a centre of the second contact point so that the second touch point is shifted to an offset position in alignment with the offset centre. | 11-19-2015 |
Wai-Pun Chung, Hong Kong HK
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20140254818 | SYSTEM AND METHOD FOR AUTOMATICALLY SWITCHING OPERATIONAL MODES IN A BLUETOOTH EARPHONE - Disclosed is a system and method for automatically switching operational modes in a Bluetooth earphone. The system includes a first sensor, and a second sensor disposed within left speaker and right speaker of the earphone to detect an earphone in-use situation, and an earphone unused situation, a built-in Bluetooth chip electronically configured in the body of the earphone to receive an earphone in-use signal, and an earphone unused signal from the first sensor, and the second sensor, and an electrical switching circuit in communication with the Bluetooth chip to enable smooth transition of the earphone between a first operational mode, and a second operational mode, wherein, in the first operational mode, the earphone transmits and receives wireless Bluetooth signals to and from an external Bluetooth enabled communication device and plays audio signals, and in the second operational mode, the earphone plays no audio signals until the first sensor and the second sensor further detects the earphone in-use situation. | 09-11-2014 |
20140256249 | METHOD AND SYSTEM TO AUTOMATICALLY ESTABLISH NFC LINK BETWEEN NFC ENABLED ELECTRONIC DEVICES BASED ON PROXIMATE DISTANCE - Presented is a near field communication system and method to automatically establish an interconnection between two electronic devices. The system includes a first electronic device including an NFC chip communicatively coupled to a passive NFC tag, where the NFC tag having an integrated circuit with a predefined information content, a second device including an active NFC reader configured to read the predefined information content from the NFC tag based on an identification of a proximate distance therebetween, and where the NFC tag is capable of transmitting an activation signal to the NFC chip to enable transition of the NFC chip from a first state to a second state such as to establish a near field wireless communication link between the two devices to enable exchange of digital content therebetween. | 09-11-2014 |
20140256259 | Bluetooth Communication System And Method For Selectively Switching Modes Of Operation In Between Electronic Devices - Disclosed is a Bluetooth Communication System and related method thereof for switching mode of operations between electronic devices. The system comprising a first Bluetooth enabled electronic device, one or more second Bluetooth enabled electronic devices, wherein the first Bluetooth enabled electronic device comprising a Bluetooth chip, a processing circuitry, and a user operable interface configured thereon to switch the processing circuitry to a desired second Bluetooth enabled electronic devices, and switch operational mode of the desired second Bluetooth enabled electronic devices from a first mode of operation to a second mode of operation or vice versa to establish a Bluetooth communication link between the first Bluetooth enabled electronic device and desired second Bluetooth enabled electronic device. | 09-11-2014 |
Wai Yee Joanne Chung, Hong Kong HK
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20110077728 | ELECTRONIC STIMULATION TEXTILE FOR TRADITIONAL CHINESE MEDICINE THERAPY - A textile for providing traditional Chinese medicine therapy to a wearer using electronic stimulation includes at least two conductive paths that are made from conductive textile material, the conductive paths are separated by nonconductive textile material, at least one pair of electrodes attach to the conductive paths corresponding to specific part of body or acupoints according to traditional Chinese medicine theory, and an electronic stimulation signal controller configured to conduct electronic stimulation signals to the electrodes via the conductive paths. | 03-31-2011 |
William Yiu Man Chung, Hong Kong HK
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20120061490 | HAND HELD SPRAY VALVE - A hand held spray valve assembly includes a trigger upon which a linear force is applied to cause the assembly to switch from the normally closed condition to the open condition. The trigger includes a slider element having a tapered end which is in contact with and opposes a complimentarily tapered end of a moveable piston. By applying a force on the trigger, the tapered end of the slider element moves linearly over the tapered end of the piston and creates a force upon the piston. The force on the piston causes the piston to move to a position where a sealing element in the assembly does not obstruct a waterway channel through which water under pressure can flow from an inlet, through the waterway channel and out a spray face of the assembly. | 03-15-2012 |
Wing Hong Joe Chung, Hong Kong HK
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20150091724 | Mandown Automatic SOS Speaker Device - The present invention provides a mandown automatic SOS speaker device configured to be used with a radio transceiver. | 04-02-2015 |
Wing Yin Chung, Hong Kong HK
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20120234959 | SINGLE ACTION REEL CONTROL MECHANISM - A retractable reel rotational control apparatus, comprising a mechanical actuator which simultaneously brakes and locks the reel in a single action of the actuator, and releases the brake and lock with a subsequent action, wherein the reel brake is separate from the actuator. | 09-20-2012 |
Yiu Wa Chung, Hong Kong CN
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20080241280 | Usage of the Plant of Genus Ampelopsis and Extracts Thereof For Manufacture of Medicament and Functional Food - Usage of the plant of genus | 10-02-2008 |
Yiu Wa Chung, Hong Kong HK
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20090124627 | COMPOSITIONS FOR SLEEPING DISORDERS - Provided herein is a method for treating, preventing, or ameliorating a disorder such as insomnia or another sleeping disorder using a composition that contains an effective amount of one or more compounds. | 05-14-2009 |
Yuk-Ming Chung, Hong Kong HK
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20090008528 | VERTICAL-TYPE FINISHING MACHINE - A vertical-type finishing machine includes: a single piece of a supporting body including a horizontally extending bed and a vertically extending post upright from the horizontally extending bed; a tool carrier mounted movably on the vertically extending post; and a worktable mounted movably on the horizontally extending bed. The post has a straight vertical segment disposed above the bed, and a buttress segment flaring and extending downwardly from the straight vertical segment to the bed. | 01-08-2009 |