Tsang, Hong Kong
Chi Chiu Tsang, Hong Kong HK
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20150380959 | Serial Multi-Battery Charger with Independent Simultaneous Charge and Discharge - A serial battery charger has a battery matrix with switches that are configured by a microcontroller that reads voltages between batteries to determine if each battery is fully-charged, charging, or absent. A switch configuration allows charging and discharging currents to flow simultaneously, and allows discharging current but blocks charging current from fully-charged batteries to prevent over-charging. The charging current flows through all charging batteries in series while the discharging current flows from all fully-charged and charging batteries in series. Blocking and bypass switches route the charging current to all charging batteries in series, but bypass all fully-charged and absent batteries. The blocking and bypass switches route the discharging current serially through all fully-charged and charging batteries in the battery matrix while avoiding absent batteries. The switches are controlled by the switch configuration from the microcontroller. Larger battery matrixes have row and column lines that are connected by connecting switches. | 12-31-2015 |
Chun Kwan Tsang, Hong Kong HK
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20110214998 | METHOD OF MAKING A POROUS TIO2 PHOTONIC FILM - A porous titanium dioxide film having photonic properties is made by etching a titanium substrate in an electrolyte solution in the presence of an electric field. The electrolyte solution can be an organic electrolyte solution. Etching involves providing an electrolyte solution in contact with a pair of electrodes and passing an electric current through the electrolyte solution. The titanium substrate can be one of the pair of electrodes. The current has a wave profile selected from a group consisting of a periodic square profile, a sine wave, a linear profile, or a quintic profile, and is provided either parallel of perpendicular to a plane of the substrate. | 09-08-2011 |
Chun Kwan Tsang, Hong Kong CN
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20150017418 | POROUS FRAMEWORK AND METHOD FOR ITS MANUFACTURE - A method for fabricating a porous framework includes contacting a substrate with a solution containing a plurality of component materials are dissolved in the solution. A solid composite made of the plurality of component materials is electrodeposited onto the substrate. A plurality of electrodepositing voltages is applied to vary a relative proportion of the component materials in the composite being electrodeposited, and at least one of the plurality of component materials is selectively etched away from the composite to form a plurality of pores. | 01-15-2015 |
Danny Hin-Kowk Tsang, Hong Kong CN
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20090034434 | Interior-Node-Disjoint Multi-Tree Topology Formation - A novel decentralized protocol for constructing a tree-based P2P live video streaming network with the Interior-Node-Disjoint (IND) multi-tree structure with the special Link-Level-Homogeneous property. The IND multi-tree structure recycles the wasted uploading capacities of leaf nodes in the tree-based P2P networks. The IND multi-tree structure also enhances the robustness of the tree-based P2P networks. Moreover, the special Link-Level-Homogeneous property eliminates the bottlenecks in the video delivery paths by ensuring that each downloading link in the network has identical bandwidth reserved. This special designed architecture greatly improves the downloading performance. | 02-05-2009 |
Danny Hin Kwok Tsang, Hong Kong CN
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20120106464 | SPECTRUM SHARING WITH IMPLICIT POWER CONTROL IN COGNITIVE RADIO NETWORKS - Providing for a cross-layer spectrum sharing model incorporating implicit power control for cognitive radio wireless communication is described herein. By way of example, a binary integer linear programming problem is formulated to establish active wireless links among secondary user nodes in a cognitive radio, ad-hoc network. The formulation reuses wireless channels among multiple activated links within disclosed interference constraints, and assigns a power level for transmissions on respective links. Additionally, the formulation employs bi-directional wireless links for the ad-hoc network, improving communication within the ad-hoc network. Further, power level assignments can be predefined and implicitly embedded in the formulation to reduce complexity. | 05-03-2012 |
20120108276 | COOPERATIVE SPECTRUM SENSING IN COGNITIVE RADIO NETWORKS - Providing for cooperative sensing in wireless communications that improves user terminal throughput and minimizes interference is described herein. According to some aspects, a network entity, such as a base station, can assign a set of SUTs to measure a subset of wireless channels in a target frequency according to a cooperative sensing arrangement. In particular aspects, this assignment can be implemented so as to increase or maximize potential traffic throughput of those SUTs within the target frequency, in a given wireless time slot. In this manner, cooperative sensing can be structured so as to provide more efficient traffic communications within the target frequency. | 05-03-2012 |
20120172049 | BANDWIDTH AND POWER ALLOCATIONS FOR COMMUNICATION NETWORKS WITH IMPERFECT SPECTRUM SENSING - Systems, methods, and apparatus for optimizing a use, by a secondary terminal, of an idle wireless communication channel that is associated with a primary terminal are presented herein. A mapping component can receive: information including an indication that a communication channel assigned to a wireless device is idle; and one or more requests, from respective other wireless devices, to transmit information via the communication channel. Further, an allocation component can compute power allocations of the one or more requests; and grant a request of the one or more requests based on the power allocations. The allocation component can further be configured to iteratively compute a power allocation of the power allocations based on a bandwidth allocation of the bandwidth allocations; and iteratively compute a bandwidth allocation of the bandwidth allocations based on a power allocation of the power allocations. | 07-05-2012 |
20120195212 | COOPERATIVE SENSING SCHEDULING FOR ENERGY-EFFICIENT COGNITIVE RADIO NETWORKS - Cooperative sensing scheduling and parameter designs are described, which can achieve improvements in energy efficiency in cognitive radio networks, for example. In addition, the disclosed subject matter describes an objective or reward function or policy related to energy efficiency and considerations such as channel assignments sensing time that can maximize the objective function. The disclosed details enable various refinements and modifications according to system design and tradeoff considerations. | 08-02-2012 |
20140018089 | BANDWIDTH AND POWER ALLOCATIONS FOR COMMUNICATION NETWORKS WITH IMPERFECT SPECTRUM SENSING - Optimizing use, by a secondary terminal, of an idle wireless communication channel that is associated with a primary terminal is presented herein. A mapping component can receive: information including an indication that a communication channel assigned to a wireless device is idle; and one or more requests, from respective other wireless devices, to transmit information via the communication channel. Further, an allocation component can compute power allocations of the one or more requests, and grant a request of the one or more requests based on the power allocations. The allocation component can further be configured to iteratively compute a power allocation of the power allocations based on a bandwidth allocation of the bandwidth allocations; and iteratively compute a bandwidth allocation of the bandwidth allocations based on a power allocation of the power allocations. | 01-16-2014 |
Fan Kwong Tsang, Hong Kong HK
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20120131823 | Steam Ironing System - A steam ironing system is disclosed as including an electric iron, and a water container with a water outlet tube, in which the iron includes a water tank for storing water, a steam chamber in a fluid-communicable relationship with the water tank, a water inlet tube in a fluid-communicable relationship with the water tank, and a pump. The iron is detachably engageable with the water container, and when the iron is engaged with the water container, the water outlet tube of the water container is connected with the water inlet tube of the iron in a fluid-communicable relationship, and the pump is operable to draw water in the water container through the water outlet tube and the water inlet tube to the water tank. | 05-31-2012 |
20120131824 | Steam Iron - An electric steam iron is disclosed as including a body, a soleplate with steam outlets, a steam chamber between the soleplate and the body, the steam chamber being in a fluid-communicable relationship with the steam outlet, a water tank within the body and in a fluid-communicable relationship with the steam chamber, a valve downstream of the water tank and upstream of the steam chamber. The valve has a valve orifice, and a controlling mechanism for controlling opening and closing of the valve orifice, the controlling mechanism including a valve closure member and a pin with an actuating head. The valve closure member is a magnet and the actuating head is made of a ferromagnetic or ferrimagnetic metal or metal alloy, the valve closure member being movable relative to the actuating head and the valve orifice between a valve closing position and a valve opening position. | 05-31-2012 |
Fan Luk Tsang, Hong Kong HK
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20120198100 | System and Method for Surveillance - A plug-and-play surveillance system that can be set up by even computer-illiterates is disclosed herein. The system comprises an external storage device connected to a computing device and a monitoring device. A registration and matching service receives at least one unique identification code from the external storage device and the monitoring device and uses it to establish a unique pairing between the external storage device and the monitoring device. Subsequent communication between them can be directly established without the need of re-registration. The present invention provides a convenient surveillance system without complex setting and configuration. The present invention also provides higher privacy level and flexibility that additional features can be added to the system based on the user's need. | 08-02-2012 |
Fung Ling Tsang, Hong Kong CN
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20110273134 | IMPELLER DEVICE AND AUTOMATIC-SWITCHING REGENERATIVE CHARGING SYSTEM BETWEEN KINETIC ENERGY AND WIND ENERGY - An impeller device and an automatic-switching regenerative charging system between kinetic energy and wind energy are disclosed. The charging system comprises an electric generator and an impeller device in an electric green vehicle. An input end of the impeller device is connected to a differential device or an output shaft of a transmission box connected with the differential device. An output end of the impeller device is connected to an input shaft of the electric generator. The impeller device comprises at least one toothed disk with meshing teeth or at least one drive pulley. By connecting or disconnecting the impeller device and the differential device or the transmission box that link to the differential device through the one-way clutch, the kinetic energy of the electric green vehicle or the wind energy produced by the movement of the electric green vehicle can be automatically switched to charge an accumulator cell. | 11-10-2011 |
Hay Tak Tsang, Hong Kong CN
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20140348675 | PUMP - A liquid pump has a pump housing defining a pump chamber. A motor is accommodated within the pump housing and separated from the pump chamber by an end cap. An impeller disposed within the pump chamber is driven by the motor. The pump chamber has an inlet and one or more outlets. The outlets are located on a sidewall of the pump chamber and extend in a direction substantially tangential to an outer circumference of the pump chamber. Each outlet has a first end near the pump chamber, and a second end remote from the pump chamber. A cross-sectional area S | 11-27-2014 |
Hing Choi Tsang, Hong Kong CN
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20100052867 | APPARATUS AND METHOD FOR IDENTIFYING OBJECT MOVEMENT AND LOCATION WITH RFID DEVICE - An apparatus for identifying object movement and location with RFID device comprises two RFID gateways constructed by at least one RFID interrogator located inside and outside an entrance of a monitored zone independently, a portable RFID tag carried by the object capable of receiving and responding said signals emitted by said RFID interrogator, and a data processor connected with said RFID gateways capable of receiving said responses to identify said object movement as leaving or entering said entrance and said object location as outside or inside said monitored zone. There is also a corresponding method for identifying object movement and location with RFID device. | 03-04-2010 |
20100289621 | METHOD FOR OPTIMIZING RFID DEPLOYMENT AND RFID DEPLOYMENT OPTIMIZER OF USE THEREOF - A method for optimizing the deployment of RFID apparatus, and a RFID deployment optimizer of use thereof are provided. The method includes the steps: A. analyzing the interrogation zone where the RFID apparatus are deployed, B. identifying the readability o RFID tag associated with different sets of placement on a target object inside the interrogation zone, and C. selecting the best deployment alternative based on the analysis result of the interrogation zone attained in the step A and all the readabilities of RFID tag associated with different sets of placement identified in the step B. | 11-18-2010 |
Hoikwan Tsang, Hong Kong CN
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20110273134 | IMPELLER DEVICE AND AUTOMATIC-SWITCHING REGENERATIVE CHARGING SYSTEM BETWEEN KINETIC ENERGY AND WIND ENERGY - An impeller device and an automatic-switching regenerative charging system between kinetic energy and wind energy are disclosed. The charging system comprises an electric generator and an impeller device in an electric green vehicle. An input end of the impeller device is connected to a differential device or an output shaft of a transmission box connected with the differential device. An output end of the impeller device is connected to an input shaft of the electric generator. The impeller device comprises at least one toothed disk with meshing teeth or at least one drive pulley. By connecting or disconnecting the impeller device and the differential device or the transmission box that link to the differential device through the one-way clutch, the kinetic energy of the electric green vehicle or the wind energy produced by the movement of the electric green vehicle can be automatically switched to charge an accumulator cell. | 11-10-2011 |
Hon Ki Tsang, Hong Kong CN
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20090290837 | OPTICAL DEVICES FOR COUPLING OF LIGHT - An optical device and an optical system are provided for coupling of light. The optical device comprises a planar substrate; and an optical waveguiding layer disposed on the planar substrate. The optical waveguiding layer comprises a grating portion for coupling light between a planar waveguide and an optical fiber; and a tapered guiding portion for converting the mode size between the fiber and the planar waveguide. The grating portion comprises a first grating section having non-uniform periods. | 11-26-2009 |
Ka Leong Tony Tsang, Hong Kong HK
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20140017955 | SYSTEM AND METHOD FOR DETECTING THE GROUND AND MICROPHONE INPUT CONTACTS IN AN AUDIO PLUG - A circuit for detecting the position of the signal MIC-IN and GND on the audio plug of a mobile phone includes two comparators and two switches. The comparators compare the voltage difference between the two contact points representing MIC-IN and GND of the audio plug of a mobile phone, and through this comparison the ground signal of the mobile phone is identified. The circuit then connects the ground of the accessory and the mobile phone properly, by activating the appropriate switch. | 01-16-2014 |
Kam Ming Tsang, Hong Kong CN
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20110217437 | COFFEE MAKER AND METHOD OF OPERATING COFFEE MAKER - A coffee maker has a water reservoir, an in-line water heater, a brew basket for receiving coffee grounds, a water passage between the water reservoir and the brew basket, a water level sensor located in the water reservoir, a water level indicator, and a controller in communication with the water level sensor and the water level indicator. The passage passes through the in-line water heater for delivering heated water to the brew basket. The controller activates the water level indicator in response to a signal from the water level sensor. A method of making coffee in the coffee maker includes determining, in the controller, an operating condition for a coffee bean grinder and operating the coffee bean grinder based on the operating condition to grind coffee beans and produce a quantity of ground coffee beans. | 09-08-2011 |
20120017765 | COFFEE MAKER HAVING A BEAN GRINDER AND COFFEE BEAN GRINDER - A coffee maker or coffee bean grinder has a bean hopper for storing coffee beans, a bean grinder for grinding coffee beans into coffee grounds, and a bean delivery device for delivering a quantity of beans from the bean hopper to the bean grinder. The bean delivery device has a bean receptacle and is movable between first and second positions. In the first position, the bean receptacle communicates with the bean hopper and, in the second position, the bean receptacle communicates with the bean grinder. A controller controls movement of the bean delivery device between the first and second positions | 01-26-2012 |
20150013551 | FROTHING MACHINE FOR CONTROLLING FOAM VOLUME - The present invention relates to a milk frothing device that is capable of controlling foam volume, In particular, the milk frothing device includes a container with a cover, a stirrer disposed within the container, a motor for rotating the stirrer forward or backward, a set of rotation control elements for controlling the rotation direction of the motor and a base containing a heating element, a circuit board and a temperature sensor, the base attachable to the container. This invention discloses a device with a simple structure. The container does not contain any electric components and may be separated from the base which makes it easy and convenient for use and cleaning. This invention discloses a method for making foam with different volume through changing the rotating direction of the stirrer. Different foam volume may be generated to cater individuals' quest for texture and taste of drinks. | 01-15-2015 |
Kam Sze Kent Tsang, Hong Kong CN
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20140051165 | STEM CELL PACKAGING AND SHIPPING - This invention concerns methods of packaging and shipping stem cells. Also disclosed are related package products. | 02-20-2014 |
Kim-Fung Tsang, Hong Kong CN
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20100033349 | System and method for railway vehicle detection - A system and method for detecting the railway vehicle with a plurality of RFID readers and tags are disclosed. Railway vehicle directional movement on specific track can be detected and updated by the RF communication of the readers and tags. The railway system also includes a computer which monitors a couple of RFID readers for the real-time railway vehicle position. Intelligent detection algorithm is implemented in the reader to identify specific railway vehicle, on a particular track for at least one track in bidirectional or parallel direction. For encoding the data, each RF tag is of unique ID and the RF signal is encrypted. | 02-11-2010 |
Kong Chau Tsang, Hong Kong CN
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20150365882 | METHOD FOR PERFORMING A CELL SEARCH IN MULTIPLE ANTENNA WIRELESS SYSTEMS - A methods for performing a cell search in multiple antenna wireless systems using a plurality of spatial filters is disclosed, and includes applying a plurality of spatial filters to a plurality of received signal streams to generate a plurality of filtered signal streams. The plurality of received signal streams correspond to signals received at a plurality of receive antennas from a plurality of signal sources (e.g., neighboring cells). In an aspect, the plurality of spatial filters may be predefined spatial filters and may be weighted using a set of predefined filter weights. In an additional or alternative aspect, the plurality of spatial filters may be adaptive spatial filters and may be weighted using a set of dynamically determined filter weights. The method includes detecting physical network identities based on the plurality of filtered signal streams. | 12-17-2015 |
Kwai Yin Tsang, Hong Kong CN
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20120159757 | Convenient-used securing clamp - A convenient-used securing clamp comprises a pair of clamp hands, two distance-fixing clamps, two groups of throat pipe moulds and a mould base, wherein the distance-fixing clamp is a split structure that consists of two pieces which can be closed together or released; the throat pipe moulds are set inside the distance-fixing clamps with the same split structure, so as to be closed and released along with the distance-fixing clamps; the mould base is also the split structure, with its upper part connected with the distance-fixing clamps and the lower part connected with the pair of clamp hands, so that as the pair of clamp hands releases and closes, the mould base releases and closes. | 06-28-2012 |
20120168415 | Butt-welding and electrofusion joining machine - A butt-welding and electro-fusion joining machine comprises a smoothing board, a heating board, fixed rings, a movable ring, throat pipe moulds, a manual switch, cross beams, and uprights, wherein the fixed rings and movable ring are set in turn on the cross beams of the uprights; the throat pipe moulds are set inside the fixed ring and the movable ring; the heating board is set at one end of the uprights; at one side of the heating board is fixed rings, and the other side is the smoothing board; the manual switch is set on the cross beams; the length of the cross beams is sufficient for placing pipes and fittings; the movable ring is set between the fixed rings and moves back and forth along the cross beams according to the length of the pipes and fittings joined by electro fusion. | 07-05-2012 |
Kwok Cheung Tsang, Hong Kong CN
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20110284495 | ETCH ISOLATION LPCC/QFN STRIP - Various structures and fabrication methods for leadless plastic chip carrier (QFN) packages which utilize carriers in strip format, wherein the leads (or terminals) are formed to be electrically isolated from one another within each unit and in which the units are formed to be electrically isolated from one another within the strip using chemical etching techniques. | 11-24-2011 |
Kwok Ying Tsang, Hong Kong CN
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20110059378 | CATALYST FOR HYDROGEN GENERATION FROM SMALL ORGANIC MOLECULES - A catalyst for the generation of hydrogen from a small organic molecule comprises a tertiary metal composition where: the first metal is either Pt or Ru; the second metal is at least one of Pt, Ru, Au, Pd, Rh, Ir, Os, and/or Re; and Bi, primarily present in the form of an oxide or of a mixture of oxides and carbonates and in the +3 oxidation state. A portion of the first and/or second metal may be in the form of an oxide. The catalyst can be in the form of a nanoparticle and supported on an inert substrate, such as carbon. The catalyst can be used for dehydrogenation of formic acid or other small organic molecules in a liquid state at ambient pressures and at temperatures below the boiling point of the liquid. The liquid can be an aqueous solution of the small organic molecule. | 03-10-2011 |
Michael Wing Wai Tsang, Hong Kong CN
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20100196448 | WOUND HEALING DRESSING AND METHODS OF MANUFACTURING THE SAME - Disclosed are a hydrogel dressing for covering or treating a wound and a method for preparing the same. The hydrogel dressing includes a matrix structure of a cross-linked mixture, and an elastic sheet coated with an elementary metal or ionic metal embodied in the matrix structure. The mixture comprises a hydrophilic polymer, about 0.5 to about 5 wt % of a photocatalyst agent and at least 80 wt % of water based on the total weight of the mixture. | 08-05-2010 |
Paulpanghing Tsang, Hong Kong HK
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20120286399 | LEADFRAME AND METHOD FOR PACKAGING SEMICONDUCTOR DIE - In one embodiment, a method is provided for packaging a semiconductor die. A leadframe having a die-pad and one or more lead-pads is placed ( | 11-15-2012 |
Peter Wai Ming Tsang, Hong Kong CN
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20110249087 | MULTIPLE VIEW DISPLAY OF THREE-DIMENSIONAL IMAGES - Systems, methods, and devices that generate and display a multiple view 3-D holographic image (“image”) of a 3-D real or synthetic scene are presented. A projection system captures visual information of the 3-D scene from various perspectives and generates model data to create a 3-D model of the scene. The model data is converted to holographic data, which is respectively portioned corresponding to the respective perspectives of the scene and used to generate and display respective portions of the image on respective display sections. The display sections can be separate display sections corresponding to the various perspectives, or the display sections can be on a single display that is divided into sections for the various perspectives and a 3-D adapter is employed to facilitate display of the image in the display area, wherein reflector components can be used to reflect the portions of the image to the display area. | 10-13-2011 |
20110249820 | AUDIO SPATIAL EFFECT ENHANCEMENT - The disclosed subject matter relates to an architecture that can facilitate generation of enhanced spatial effects for stereo audio systems. Such can be accomplished by integrating on top ambience signal boosting employed in conventional systems. In particular, the ambience signal can be transformed according to a time-dependent function, which can simulate the auditory impressions of a real-world listening environment that may contain static, regularly moving, and/or irregular moving elements. | 10-13-2011 |
20120314021 | GENERATING AN AERIAL DISPLAY OF THREE-DIMENSIONAL IMAGES FROM A SINGLE TWO-DIMENSIONAL IMAGE OR A SEQUENCE OF TWO-DIMENSIONAL IMAGES - Systems, methods, and devices that generate and display a multiple view 3-D holographic image (“image”) of a 3-D real or synthetic scene are presented. A capture system can capture or generate as little as a single 2-D image, or a sequence of 2-D images, of a scene and can convert the 2-D visual information to facilitate generating a 3-D scene from various perspectives. Predefined distortion morphing or transition morphing is employed to generate one or more morphing images to reconstruct different perspectives of the scene without having to capture such different perspectives. A sequence of 2-D images, including the morphing images, each representing a respective view of the scene are integrated to form a 3-D integrated image, which can be displayed on a 3-D aerial projection system. The disclosed subject matter can generate and/or maintain disparity information to improve quality of the display of the 3-D integrated image. | 12-13-2012 |
20120314024 | AUTOMATIC SWITCHING OF A MULTI-MODE DISPLAY FOR DISPLAYING THREE-DIMENSIONAL AND TWO-DIMENSIONAL IMAGES - Systems, methods, and devices that control switching of a multi-mode barrier component for efficiently displaying various types of 2-D content and 3-D content are presented. A barrier control component detects an optical signal in a control region of a display screen that is providing visual content to the barrier component, and identifies the type of visual content, such as 2-D content, 3-D stereoscopic content, or 3-D autostereoscopic content, based at least in part on the optical signal. The barrier control component identifies a specified control signal based at least in part on the identified content type, and transmits the specified control signal to the barrier component via a wireline or wireless connection. The barrier component is controlled to automatically switch to a specified mode, such as 2-D mode, 3-D stereoscopic mode, or 3-D autostereoscopic mode, and employ a specified barrier pattern, in response to the received specified control signal. | 12-13-2012 |
20130113795 | METHOD FOR GENERATING MULTI-VIEW IMAGES FROM A SINGLE IMAGE - From only a single two-dimensional source image ( | 05-09-2013 |
Shik Chi Tsang, Hong Kong HK
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20150335767 | Dual-Mode Contrast Agent and Uses Thereof in Real-time Monitoring and Harvesting of Neural Stem Cells - A real-time method to monitor and harvest stem cells is provided in the present invention. In particular, the present invention provides a real-time method to monitor and harvest neural stem cells. The present invention has applications in providing an individualized cell replacement therapy for patient in need thereof. More specifically, the present invention has applications in performing real-time monitoring and harvesting of neural stem cells using magnetic resonance imaging (MRI). | 11-26-2015 |
Shiu Hang Tsang, 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 |
Shiu Hang Tsang, 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 |
Sik-Ho Tsang, Hong Kong HK
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20140002594 | HYBRID SKIP MODE FOR DEPTH MAP CODING AND DECODING | 01-02-2014 |
Siu Wai Tsang, Hong Kong HK
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20130323329 | Method Of Using Rhein For Treating Fibrotic Conditions And Tumors - The present invention relates to a method of using an anthraquinone derivative namely 9,10-Dihyro-4,5-dihydroxy-9,10-dioxo-2-anthracenecarboxylic acid, or known as Rhein, for treating chronic pancreatitis induced fibrosis of the pancreas. More particularly, the present invention relates to a method of using Rhein, its derivatives and/or chemical variants as an anti-fibrotic agent. The present invention particularly relates to the suppression of pancreatic stellate cell activation for the management of chronic inflammatory, fibrotic and tumorigenic pathologies in the pancreas. | 12-05-2013 |
Supyin Tsang, Hong Kong CN
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20100112633 | Two-Step Enzyme Method for Preparing 7-Aminocephalosporanic Acid - The present invention discloses a two-step enzyme method for preparing 7-aminocephalosporanic acid from cephalosporin C, wherein D-amino acid oxidase used is purified D-amino acid oxidase mutant of yeast | 05-06-2010 |
Ting Fung Tsang, Hong Kong HK
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20150209376 | MELANOGENESIS EFFECT OF SAPONINS OF GYNOSTEMMA PENTAPHYLLUM - The present invention provides composition and method for inducing melanogenesis. The composition comprising an effective amount of saponins extracted from herbal plants. | 07-30-2015 |
Waikei Tsang, Hong Kong CN
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20100112633 | Two-Step Enzyme Method for Preparing 7-Aminocephalosporanic Acid - The present invention discloses a two-step enzyme method for preparing 7-aminocephalosporanic acid from cephalosporin C, wherein D-amino acid oxidase used is purified D-amino acid oxidase mutant of yeast | 05-06-2010 |
Wai Ming Tsang, Hong Kong CN
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20140065520 | GENERATING AND DISPLAYING HOLOGRAMS - Techniques for generating 3-D holographic images of a 3-D real or synthetic object scene are presented. A holographic generator component (HGC) can obtain a real or synthetic 3-D object scene. The HGC generates a high-resolution grating, and generates a low-resolution mask based on the 3-D object scene. The HGC overlays the mask on the grating to generate the hologram, which can be a digital mask programmable hologram. The HGC can use the grating as an encryption key, if desired, wherein the mask can be encrypted based on the encryption key. The display component receives the hologram and can generate holographic images, based on the hologram, and display the holographic images using one or more low-resolution displays. The grating and display can be arranged in various formations in relation to each other. A single display can be partitioned into a tile structure for displaying holographic images in the respective tiles. | 03-06-2014 |
Wai Ming Tsang, Hong Kong HK
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20110228365 | COMPUTER IMPLEMENTED METHOD FOR GENERATING BINARY HOLOGRAMS - A numerical method of recording a two or three dimensional object scene in a binary hologram. When the binary hologram is illuminated with a reference beam, the original object scene can be reconstructed and observed by a viewer. As the hologram is binary, i.e. composed of black or white pixels, it can be printed with commodity printers. The process is simple, fast, and economical, hence decreasing the cost and time for hologram design and production. In addition, with binary holograms, the ability to store the holograms is enhanced and binary holograms facilitate efficient transmission of the holograms. | 09-22-2011 |
Wan Fung Aylwin Tsang, Hong Kong HK
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20120149259 | Carrying strap for bodyboard - A carrying strap is provided for use with a bodyboard. The strap has a first loop section and a second loop section, each loop section defining an opening, and the loop sections connected by a handle section. A portion of the bodyboard is received in the opening of the first loop section and another portion of the bodyboard is received in the opening of the second loop section. | 06-14-2012 |
20120324613 | Wetsuit Water Catch Device - A wetsuit has a plurality of pieces of material that are stitched or glued together to form the wetsuit, a drag-creating section provided on one of the pieces of material. The drag-creating section has a base, and a plurality of water catch devices, each water catch device having a flap piece, with a cavity defined between each flap piece and the base of the piece of material and an opening that leads to the cavity. Each flap piece is constructed such that it can be moved between a collapsed configuration where it is generally flat adjacent the underlying base of the piece of material , and an expanded configuration in which it stretches away from the underlying base of the piece of material. The plurality of water catch devices are arranged in two rows on opposite sides of the base, with the openings of each row of water catch devices facing each other. | 12-27-2012 |
Want Fung Aylwin Tsang, Hong Kong HK
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20110265234 | Wetsuit water catch device - A wetsuit has a plurality of pieces of material that are stitched or glued together to form the wetsuit, and at least one drag-creating section provided on one of the pieces of material. The drag-creating section has a plurality of water catch devices, each water catch device having a flap piece and a base portion, with a cavity defined between each flap piece and the base of the piece of material or the base portion of an adjacent water catch device. Each flap piece is constructed such that it can be expanded and collapsed to allow water to enter and leave the cavity, and the plurality of water catch devices are arranged in series immediately adjacent to each other, with the cavity of each water catch device on the piece of material opening in the same direction towards another water catch device. | 11-03-2011 |
Wa Sing Tsang, Hong Kong CN
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20100097075 | TEST HANDLER FOR ELECTRONIC DEVICES - A test handler comprises a package support for holding an electronic device in a certain orientation and for transporting the electronic device to a testing station for testing the electronic device. An orientation correction device is actuable and operative to engage the package support and to rotate the package support so as to change the orientation of the electronic device. | 04-22-2010 |
Wa Sze Tsang, Hong Kong CN
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20090290246 | Method for testing performance of a magnetic head slider - A method for testing performance of a magnetic head slider includes the steps of: (1) rotating the disk and positioning the slider over the rotating disk at an initial fly-height; (2) exciting the fly-height actuator to make the slider touch the disk and recording a touch down spacing of the read head of the slider; (3) backing off the slider at a predetermined backoff amount from the disk; (4) testing dynamic performance of the slider to obtain a reference value which is related to the spacing between the disk and the slider; (5) varying the initial fly-height of the slider; (6) repeating the steps (2) to (4) with the backoff amount fixed; and (7) calculating a dynamic fly-height gamma ratio based at least in part on the recorded touch down spacing and the obtained reference values. | 11-26-2009 |
William Wei Tsang, Hong Kong CN
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20150334810 | Multi-Function Controllable Luminous Decoration - A multi-function controllable luminous decoration includes a casing and an inductive light-emitting device disposed in the casing. The inductive light-emitting device includes a detection switch, a control unit, a light-emitting unit, a TF (Trans-Flash) card, a main control chip, a data line port, a battery, and a charging management chip. The present invention is able to vibrate and emit light, and has the functions of showing the characters and pictures stored in the TF card, storage, charging management, enhancing culture information and increasing ornament, interesting and practicability to satisfy the demands of more consumers. | 11-19-2015 |
Wing Hon Tsang, Hong Kong HK
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20080254680 | USB Connector - A USB plug comprises a shell, a stationary port, upper and lower sliders and a levering device. The shell has an opening formed at a front end thereof and two pairs of terminal pins connected at a rear end thereof. The stationary port extending horizontally is fixed at a middle of the rear end of the shell, each side of the port being provided with two pairs of contacts in electrically connection with the terminal pins. The upper and lower sliders respectively have first sides thereof facing towards each other and second sides thereof being slidable along upper and lower sidewalls of the shell, each one slider having two metal contacts provided on the first side thereof corresponding to the contacts of the stationary port. The levering device is operatively provided between the upper and lower sliders in order to alternately shift the upper and lower sliders by means of an external intrusion force exerted on one of the upper and lower sliders. Advantageously the USB plug is adapted for connecting with a conventional USB socket in both upside and upside down orientation. | 10-16-2008 |
20090215314 | USB connector - A USB plug comprises a shell, a stationary port, upper and lower sliders and a levering device. The shell has an opening formed at a front end thereof and two pairs of terminal pins connected at a rear end thereof. The stationary port extending horizontally is fixed at a middle of the rear end of the shell, each side of the port being provided with two pairs of contacts in electrically connection with the terminal pins. The upper and lower sliders respectively have first sides thereof facing towards each other and second sides thereof being slidable along upper and lower sidewalls of the shell, each one slider having two metal contacts provided on the first side thereof corresponding to the contacts of the stationary port. The levering device is operatively provided between the upper and lower sliders in order to alternately shift the upper and lower sliders by means of an external intrusion force exerted on one of the upper and lower sliders. Advantageously the USB plug is adapted for connecting with a conventional USB socket in both upside and upside down orientation. | 08-27-2009 |
20130003989 | PERCEPTION ENHANCEMENT FOR LOW-FREQUENCY SOUND COMPONENTS - This invention discloses a method and a plurality of compressive amplitude distortion units for enhancing the perceptibility of the low-frequency portion of a sound by introducing residue harmonics of low-frequency signal components into the sound, where the residue harmonics are generated by a nonlinear function emulating the middle-ear response of a human being. The low-frequency portion in the resultant sound is perceivable to a human listener even if this portion is removed from this sound. In one embodiment, a compressive amplitude distortion unit comprises: a low pass filter for extracting low-frequency components of the input sound signal; a compressive amplitude function processor for generating a harmonics-containing signal from the low-pass signal by a nonlinear function emulating the middle-ear response; a gain block for scaling the harmonics-containing signal such that the signal strength of the scaled harmonics-containing signal is in the same range as that of the initial low-pass signal; an adder for adding the input sound signal and the scaled harmonics-containing signal; and a high pass filter for removing the low-frequency signal components in the output sound signal while still including the residue harmonics. Based on the disclosed method, this invention also discloses two anti-piracy methods that utilize the absence of low-frequency signal components in a sound signal, one for convenient detection of an unauthorized copy of the processed sound signal, another one for discouraging people to make such an unauthorized copy. | 01-03-2013 |
20140063376 | LIQUID-CRYSTAL OPTICAL MODULES AND MULTI-PURPOSE EYEWEAR USING THE SAME - This invention discloses optical modules, and eyewear using them for performing viewing function(s) including viewing a shutter-based 3D display, viewing a polarization-based 3D display, emulating the Pulfrich effect, emulating a pair of pinhole glasses and emulating a pair of sunglasses. In one embodiment, an optical module comprises: a first liquid crystal layer between a first and a second transparent conductive layers; a transparent protective layer attached to the first transparent conductive layer; a third transparent conductive layer; a matrix-electrode layer, comprising an array of independently addressable electrode regions each being transparent and electrically conductive; a second liquid crystal layer between the matrix-electrode layer and the third transparent conductive layer; a first linear polarizer attached to the second transparent conductive layer and the matrix-electrode layer; and a second linear polarizer, having a polarization orientation orthogonal to the polarization orientation of the first linear polarizer, attached to the third transparent conductive layer. | 03-06-2014 |