| CITY UNIVERSITY OF HONG KONG Patent applications |
| Patent application number | Title | Published |
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| 20120087853 | GAS TREATMENT BY CATALYTIC OZONE OXIDATION - In one embodiment, a catalyst for ozone oxidation of pollutant components dispersed in a gas is provided. The ozone oxidation catalyst has a porous body formed from a metal body, a ceramic, or polymeric fibers coated with metal. A catalytic noble metal composition is deposited on the surface of the porous body. The catalytic noble metal composition is formed from particles of a noble metal supported by a mesoporous molecular sieve. | 04-12-2012 |
| 20120086705 | METHODS FOR CREATING AND DISPLAYING TWO AND THREE DIMENSIONAL IMAGES ON A DIGITAL CANVAS - A trajectory is drawn on a digital canvas with a pointing device, wherein the trajectory comprises a plurality of spaced points, and each spaced point has a plurality of characteristics, including a geometric profile, a depth, and a color if a color trajectory or an intensity if a monochromatic trajectory. One or more of the plurality of characteristics is adjusted by manually controlling a speed of the drawing, and a faster drawing speed results in spacing between two successive points that is greater than that resulting from a slower speed. A line is generated by interpolating the space between the points. A picture is created with a number of trajectories and/or lines. A three-dimensional image may be created from the picture by creating, then integrating a set of multi-view images from the picture. The picture in progress and/or as completed may be displayed, for example, on a three-dimensional display. | 04-12-2012 |
| 20120086394 | BATTERY CHARGING SYSTEM - There is provided a planar inductive battery charging system designed to enable electronic devices to be recharged. The system includes a planar charging module having a charging surface on which a device to be recharged is placed. Within the charging module and parallel to the charging surface is at least one and preferably an array of primary windings that couple energy inductively to a secondary winding formed in the device to be recharged. The invention also provides secondary modules that allow the system to be used with conventional electronic devices not formed with secondary windings. | 04-12-2012 |
| 20120080420 | POWER CONTROL CIRCUIT AND METHOD FOR STABILIZING A POWER SUPPLY - The present invention provides a power control circuit connectable to a load adapted to receive a power supply, the power control circuit adapted to absorb power from the power supply and adapted to deliver power to the power supply to stabilize at least one electrical parameter of the power supply. The present invention also provides an associated method of stabilizing at least one electrical parameter of a power supply connectable to a load, the method including absorbing power from the power supply or delivering power to the power supply. The at least one electrical parameter of the power supply includes parameters such as voltage and frequency. | 04-05-2012 |
| 20120020075 | Method and Numerical Tool for Optimizing Light Emitting Diode Systems - Methods and numerical tools for designing and optimizing LED systems are provided to achieve a desired luminous performance and to increase reliability and operating lifetime. In addition, methods for designing LED illumination systems are also disclosed to determine an optimum operating power for a desired output luminous flux, given the condition of the rated power of the LED and the heatsink. By the invention, LED illumination systems can be designed with a suitable choice of LED and/or heatsink. | 01-26-2012 |
| 20110306140 | Molecular Heterobimetallic Chemodosimetric Sensor for the Detection of Biogenic Amines - The invention relates to using heterobimetallic coordination polymers and their uses as chemodosimeters for sensing materials for the screening of specific biogenic amines. | 12-15-2011 |
| 20110292394 | OPTICAL SENSING DEVICES AND METHODS FOR DETECTING SAMPLES USING THE SAME - Disclosed are optical sensing devices and methods for detecting samples using the same. The optical sensing device comprises a source unit configured to generate a polychromatic light beam containing p-polarized and s-polarized components; an interferometric unit configured to split the light beam into a probe beam passing a first path and a reference beam passing a second path and to recombine the probe beam output from the first path and the reference beam output from the second path; a sensing unit disposed in the first path to introduce a first SPR effect associated with a target sample to the probe beam; and a detection unit configured to detect target sample characteristics by obtaining an intensity spectrum of the recombined light beam. The introduction of a polychromatic light source in the optical sensing device increases the detection dynamic range and the detection sensitivity. | 12-01-2011 |
| 20110261993 | WELL FOCUSED CATADIOPTRIC IMAGE ACQUISITION - The subject innovation provides for systems and methods to facilitate obtaining an overall well focused catadioptric image by combining portions of multifocal images in a fast and reliable manner. The resulting images benefit applications where high image resolutions are desirable over a large field of view. In an aspect, shallow depth of field imaging with respect to the caustic volume boundary can be correlated to annular shaped best focal regions for multifocal image sets. These annular regions are generally independent of scene composition and generally dependant on optical system parameters allowing fast computation of overall well focused output images comprising concentric best focused annulus areas from a multifocal image set. | 10-27-2011 |
| 20110260937 | SOLAR ENERGY COLLECTION ANTENNAS - The subject disclosure relates to solar energy collection and use in communications systems and to enhancements thereof. In an aspect, dual function antennas are disclosed that can simultaneously function as an antenna and as a solar energy collection system. In further aspects, disclosed embodiments can focus incident solar radiation to increase output voltage of conventional solar cells. Measured and simulated results demonstrate various aspects of the subject disclosure. | 10-27-2011 |
| 20110260936 | SOLAR ENERGY COLLECTION ANTENNAS - The subject disclosure relates to solar energy collection and use in communications systems and to enhancements thereof. In an aspect, dual function antennas are disclosed that can simultaneously function as an antenna and as a solar energy collection system. In further aspects, disclosed embodiments can focus incident solar radiation to increase output voltage of conventional solar cells. Measured and simulated results demonstrate various aspects of the subject disclosure. | 10-27-2011 |
| 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 |
| 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 |
| 20110239310 | TRANSGENIC FISH AND USES THEREOF - The present invention relates to a transgenic fish having at least one genomically integrated expression cassette containing a 5′-regulatory nucleotide sequence responsive to hormones, particularly estrogenic hormones, connected in a functional manner upstream of a nucleotide sequence encoding a reporter protein. The present invention further relates to methods of using the transgenic fish for various purposes, including, for example: (1) identifying estrogenic endocrine disruptors; (2) monitoring estrogen-like activity of test samples; (3) identifying anti-estrogenic endocrine disruptors; and (4) investigating the effects of endocrine disruptors on liver regeneration. Expression cassettes, host cells, and transgenic cells of aquatic animals are also disclosed. | 09-29-2011 |
| 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 |
| 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 |
| 20110206350 | DIGITAL CHIP AND METHOD OF OPERATION THEREOF - A digital chip system, digital chip, methods for embedding data and methods for extracting data are provided. In some embodiments, a digital chip includes: a watermark encoder digital chip configured to receive one or more watermark bits and generate a stego-video; and a watermark decoder digital chip configured to receive the stego-video and extract the one or more watermark bits from the stego-video. In some embodiments, the digital chip also includes: a video decoder controller digital chip configured to receive raw video data, wherein the raw video data is received from a video decoder; a configuration controller digital chip configured to configure the video decoder; a memory management unit digital chip configured to store at least one of the raw video frame, the raw video data or the stego-video; and an Ethernet controller unit digital chip configured to store or access the raw video or stego-video. | 08-25-2011 |
| 20110199799 | SELF-DRIVEN AC-DC SYNCHRONOUS RECTIFIER FOR POWER APPLICATIONS - Systems, methods, and devices that employ self-driven gate-drive circuitry to facilitate controlling power switches to emulate a diode bridge to synchronously rectify a power signal are presented. A single-phase or multi-phase synchronous rectifier can comprise at least a first pair of switches of a first conducting path and a second pair of switches of a second conducting path that can form or emulate a diode bridge. To facilitate emulating turn-on and turn-off conditions of a diode, a switch can be turned on when voltage across the switch is forward-biased and turned off when switch current is reversed; also, there can be at least one current-controlled switch in each conducting path. Self-driven gate-drive circuitry employs low power components that can facilitate controlling respective switching of the at least first pair and second pair of switches, wherein switching of the switches is also controlled at start-up to emulate a diode bridge. | 08-18-2011 |
| 20110154036 | Method For Implementing Encryption And Transmission of Information and System Thereof - The invention discloses a method for implementing encryption and tranmission information and system thereof. The method comprises the following steps when a sender sends information to a receiver: a client of the sender encrypts the information by using a unique identifier of a receiver identity as a public key; the sender sends the encrypted information to the receiver; the receiver receives the encrypted information, and a client of the receiver performs decryption by using a user private key; wherein the client of the receiver obtains the user private key by one-off registration and the user private key matches with the unique identifier of the receiver identity. The system comprises an information transmission platform, a sender and a receiver connected to each other by the information transmission platform, clients provided in the sender and the receiver, and a registration component. According to the present invention, secure communication between the sender and the receiver is realized without a process of establishing any initial key, and the negotiation process between the sender and the receiver before encryption/decryption and the interactions with any other entities during every encryption/decryption procedure are avoided. | 06-23-2011 |
| 20110122036 | LIGHT TRANSMISSIBLE RESONATORS FOR CIRCUIT AND ANTENNA APPLICATIONS - Provided is a circuit for an electronic device having a non-planar transparent resonator. The transparent resonator is mounted on said circuit so as to at least partially occupy a footprint of another component of the circuit. The transparent resonator forms part of a light pathway on said circuit for transmitting light to or from said another component. Also provided is a transparent dielectric resonator antenna (DRA) for optical applications. Since the DRA is transparent, it can let light pass through itself and, thus, the light can be utilized by an optical part of a system or device. The transparent DRA can be placed on top of a solar cell. Since the DRA does not block the light, the light can reach the solar cell panel and power can be generated for the system or device. The system or device so obtained is very compact because no extra footprint is needed within the system or device for the DRA. It finds application in compact wireless applications that need a self-sustaining power device. | 05-26-2011 |
| 20110112779 | POWER QUALITY METER AND METHOD OF WAVEFORM ANAYLSIS AND COMPRESSION - A method for waveform analysis and compression includes determining harmonic components of a waveform, subtracting the harmonic components from the waveform, leaving a residual waveform, and compressing the residual waveform. Information about the harmonic components and the compressed residual transform can be transmitted across a network for analysis or reconstruction of the waveform in another device. The method is used in a low cost power quality meter, which can form part of a smart metering scheme. | 05-12-2011 |
| 20110109265 | RECHARGEABLE BATTERY POWERED PORTABLE ELECTRONIC DEVICE - There is provided a planar inductive battery charging system designed to enable electronic devices to be recharged. The system includes a planar charging module having a charging surface on which a device to be recharged is placed. Within the charging module and parallel to the charging surface is at least one and preferably an array of primary windings that couple energy inductively to a secondary winding formed in the device to be recharged. The invention also provides secondary modules that allow the system to be used with conventional electronic devices not formed with secondary windings. | 05-12-2011 |
| 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 |
| 20110050292 | CORELESS PRINTED-CIRCUIT-BOARD (PCB) TRANSFORMERS AND OPERATING TECHNIQUES THEREFOR - Optimal operating techniques are disclosed for using coreless printed-circuit-board (PCB) transformers under (1) minimum input power conditions and (2) maximum energy efficiency conditions. The coreless PCB transformers should be operated at or near the ‘maximum impedance frequency’ (MIF) in order to reduce input power requirement. For maximum energy efficiency, the transformers should be at or near the “maximum efficiency frequency” (MEF) which is below the MIF. The operating principle has been confirmed by measurement and simulation. The proposed operating techniques can be applied to coreless PCB transformers in many circuits that have to meet stringent height requirements, for example to isolate the gates of power MOSFET and IGBT devices from the input power supply. | 03-03-2011 |
| 20110008239 | METHOD AND APPARATUS USING CARBON NANOTUBES FOR HYDROGEN STORAGE - A method of storing hydrogen using carbon nanotubes having a diameter ranging from 0.6-0.8 nm. The hydrogen may be stored in a container which is made of another material. The carbon nanotubes may be provided inside the container for adsorbing the hydrogen. | 01-13-2011 |
| 20110003397 | Solvatochromic functional monomer and the use thereof for chemosensing by solvatochromic molecular imprinting - The present invention relates to a solvatochromic functional monomer having the chemical structure as shown in the accompanying drawing (FIG. | 01-06-2011 |
| 20100314558 | LUMINESCENT SYSTEM - A luminescent system includes a layer of donor material, an acceptor material and a barrier layer therebetween. The energy transfer between the donor and acceptor is biased to the acceptor layer, by an asymmetric energy transfer efficiency created by the barrier layer. Energy from the donor material is converted into photo-luminescence in the acceptor layer by discouraging photo-luminescence quenching caused by energy backflow. | 12-16-2010 |
| 20100294260 | SOLAR HEAT ABSORBING WINDOW - A window with an integral solar heat-absorber is provided in a compact, low-cost package. Two transparent panes are separated from one another to provide a first passageway for receiving a working fluid. The periphery of the panes is secured in a frame in which a heat exchanger is also secured, the heat exchanger having a second passageway for the working fluid and a third passageway for a service fluid. The first and second passageways are coupled to make a working fluid circuit. | 11-25-2010 |
| 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 |
| 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 |
| 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 |
| 20100270942 | APPARATUS AND METHODS OF OPERATION OF PASSIVE LED LIGHTING EQUIPMENT - This invention is concerned with the control and design of a LED lighting system that does not need electrolytic capacitors in the entire system and can generate light output with reduced luminous flux fluctuation. The proposal is particularly suitable, but not restricted to, off-line applications in which the lighting system is powered by the ac mains. By eliminating electrolytic capacitors which have a limited lifetime of typically 15000 hours, the proposed system can be developed with passive and robust electrical components such as inductor and diode circuits, and it features long lifetime, low maintenance cost, robustness against extreme temperature variations and good power factor. No extra electronic control board is needed for the proposed passive circuits, which can become dimmable systems if the ac input voltage can be adjusted by external means. | 10-28-2010 |
| 20100270941 | APPARATUS AND METHODS OF OPERATION OF PASSIVE LED LIGHTING EQUIPMENT - This invention is concerned with the control and design of a LED lighting system that does not need electrolytic capacitors in the entire system and can generate light output with reduced luminous flux fluctuation. The proposal is particularly suitable, but not restricted to, off-line applications in which the lighting system is powered by the ac mains. By eliminating electrolytic capacitors which have a limited lifetime of typically 15000 hours, the proposed system can be developed with passive and robust electrical components such as inductor and diode circuits, and it features long lifetime, low maintenance cost, robustness against extreme temperature variations and good power factor. No extra electronic control board is needed for the proposed passive circuits, which can become dimmable systems if the ac input voltage can be adjusted by external means. | 10-28-2010 |
| 20100270931 | APPARATUS AND METHODS OF OPERATION OF PASSIVE LED LIGHTING EQUIPMENT - This invention is concerned with the control and design of a LED lighting system that does not need electrolytic capacitors in the entire system and can generate light output with reduced luminous flux fluctuation. The proposal is particularly suitable, but not restricted to, off-line applications in which the lighting system is powered by the ac mains. By eliminating electrolytic capacitors which have a limited lifetime of typically 15000 hours, the proposed system can be developed with passive and robust electrical components such as inductor and diode circuits, and it features long lifetime, low maintenance cost, robustness against extreme temperature variations and good power factor. No extra electronic control board is needed for the proposed passive circuits, which can become dimmable systems if the ac input voltage can be adjusted by external means. | 10-28-2010 |
| 20100270930 | APPARATUS AND METHODS OF OPERATION OF PASSIVE LED LIGHTING EQUIPMENT - This invention is concerned with the control and design of a LED lighting system that does not need electrolytic capacitors in the entire system and can generate light output with reduced luminous flux fluctuation. The proposal is particularly suitable, but not restricted to, off-line applications in which the lighting system is powered by the ac mains. By eliminating electrolytic capacitors which have a limited lifetime of typically 15000 hours, the proposed system can be developed with passive and robust electrical components such as inductor and diode circuits, and it features long lifetime, low maintenance cost, robustness against extreme temperature variations and good power factor. No extra electronic control board is needed for the proposed passive circuits, which can become dimmable systems if the ac input voltage can be adjusted by external means. Optionally, the power sensitivity of the load against AC voltage fluctuation may be controlled. | 10-28-2010 |
| 20100202141 | METHODS FOR OPTIMAL OPERATION OF LIGHT EMITTING DIODES - LED illumination systems are formed with a suitable choice of LED and/or heatsink, such that an optimum operating power is identified using computer modeling for a desired output luminous flux, given the constraints of the rated power of the LED and the heatsink. | 08-12-2010 |
| 20100190661 | SERS-ACTIVE STRUCTURE FOR USE IN RAMAN SPECTROSCOPY - A surface-enhanced Raman spectroscopy (SERS)—active structure for use in Raman scattering detection has an array of nanostructures formed on a substrate by deposition and chemical etching. The nanostructures are coated with metal nanoparticles. | 07-29-2010 |
| 20100148662 | ORGANIC ELECTROLUMINESCENCE DEVICE - An electroluminescence device has an anode, a cathode and an emitting layer located between the anode and the cathode. The emitting layer contains a compound selected from a group consisting of neutral red and its derivatives. | 06-17-2010 |
| 20100147800 | METHOD OF MAKING FORAMINOUS MICROSTRUCTURES - A foraminous microstructure or film that has photonic or plasmonic properties is made by forming a structure or film composed of at least two constituent materials so that the compositional ratio of the constituent materials varies in a depth direction of the structure, and then removing one of the materials from the structure. | 06-17-2010 |
| 20100119175 | METHOD FOR ENCODING A PLURALITY OF VIDEO SIGNALS INTO A SINGLE VIDEO SIGNAL - A method of encoding video signals into a single video signal includes extracting background images from corresponding video signals, encoding the video signals into a single video signal, the single video signal containing information for reconstructing the video signals, and replacing frames of the single video signal with the background images. | 05-13-2010 |
| 20100103061 | UNIDIRECTIONAL ANTENNA COMPRISING A DIPOLE AND A LOOP - A unidirectional wireless antenna with a front-to-back ratio of 20 dB comprises a loop antenna and a dipole antenna interconnected by a metallic element and printed on a printed circuit board. The antenna is small in size but provides good unidirectional transmission. | 04-29-2010 |
| 20100093171 | FABRICATION CUBIC BORON NITRIDE CONE-MICROSTRUCTURES AND THEIR ARRAYS - A conical structure of cubic Boron Nitride (cBN) is formed on a diamond layered substrate. A method of forming the cBN structure includes steps of (a) forming diamond nuclei on a substrate, (b) growing a layer of diamond film on the substrate, (c) depositing a cBN film on said diamond layer, (d) pre-depositing nanoscale etching masks on the the cBN film, and (e) etching the the deposited cBN film. In particular, though not exclusively, the cubic Boron Nitride structure has great potential applications in probe analytical and testing techniques including scanning probe microscopy (SPM) and nanoindentation, nanomechanics and nanomachining in progressing microelectromechanical system (MEMS) and nanoelectyromechanical system (NEMS) devices, field electron emission, vacuum microelectronic devices, sensors and different electrode systems including those used in electrochemistry. | 04-15-2010 |
| 20100026188 | AUTOMATIC LAMP DETECTION METHOD AND OPTIMAL OPERATION FOR FLUORESCENT LAMPS - There is provided a method that can detect the lamp type of fluorescent lamps and operate the lamp at the appropriate lamp power. The proposed method involves the classification of lamp characteristics of existing fluorescent lamps and the use of logic detection method such as a fuzzy logic detection and control technique to zoom into the right type of lamp. The information used in the lamp detection includes (1) lamp filament/electrode resistance, (2) lamp voltage and (3) lamp current. These three pieces of information can be used to select the appropriate fluorescent lamp type so that the control gear can operate the lamp at the right rated power. The importance of this invention can lead to a universal electronic ballast that can detect and operate all fluorescent lamps commonly available. It can also be used in a limited capacity to control a limited range of lamps. | 02-04-2010 |
| 20090310875 | MOTION ESTIMATION METHOD - A motion estimation method uses a search start point and a plurality of search paths extending from the start point. The method finds an image point along the plurality of search paths that has a minimum comparison value with a reference image block. This image point with a minimum comparison value becomes the new search start point, with a plurality of new search paths extending from the new start point. The method then finds the image point along the plurality of new search paths that has a minimum comparison value with the reference image block. The cycle repeats until points on the search paths have comparison values higher than the start point. | 12-17-2009 |
| 20090259460 | SILENCE-BASED ADAPTIVE REAL-TIME VOICE AND VIDEO TRANSMISSION METHODS AND SYSTEM - A client for silence-based adaptive real-time voice and video (SAVV) transmission methods and systems, detects the activity of a voice stream of conversational speech and aggressively transmits the corresponding video frames if silence in the sending or receiving voice stream has been detected, and adaptively generates and transmits key frames of the video stream according to characteristics of the conversational speech. In one aspect, a coordination management module generates video frames, segmentation and transmission strategies according to feedback from a voice encoder of the SAVV client and the user's instructions. In another aspect, the coordination management module generates video frames, segmentation and transmission strategies according to feedback from a voice decoder of the SAVV client and the user's instructions. In one example, the coordination management module adaptively generates a key video frame when silence is detected in the receiving voice stream. | 10-15-2009 |
| 20090245690 | Auto-calibration method for a projector-camera system - A method for self-recalibration of a structured light vision system including a camera and a projector. A camera plane and a projector plane are defined, a Homography matrix between the camera plane and the projector plane is computed, and a translation vector and a rotation matrix are determined from Homography-based constraints. A computer vision system implementing the method is also described. | 10-01-2009 |
| 20090233445 | METHOD OF MAKING DIAMOND NANOPILLARS - A method for fabricating diamond nanopillars includes forming a diamond film on a substrate, depositing a metal mask layer on the diamond film, and etching the diamond film coated with the metal mask layer to form diamond nanopillars below the mask layer. The method may also comprise forming diamond nuclei on the substrate prior to forming the diamond film. Typically, a semiconductor substrate, an insulating substrate, a metal substrate, or an alloy substrate is used. | 09-17-2009 |
| 20090232742 | METHOD FOR SCREENING AGENT WITH ANGIOGENIC-MODULATING ACTIVITIES USING TELEOST EMBRYO - This invention relates to a method of 3-tier system for screening compounds, herb extract or extract of herb combination in formula with angiogenic-modulating activities using transparent teleost embryos as model. | 09-17-2009 |
| 20090219991 | BIT RATE ESTIMATION IN DATA OR VIDEO COMPRESSION - To reduce the complexity of rate-distortion cost computation in AVC (MPEG4 Pat2/H.264), a bit rate estimation method is used to avoid entropy coding during Intra and Inter mode decision. The bit rate estimation method predicts the number of entropy coded bits based on the quantized transform coefficients, thus avoiding the need to entropy code the quantized transform coefficients at each decision iteration. | 09-03-2009 |
| 20090146883 | WIDEBAND PATCH ANTENNA - A patch antenna has a ground plane and a planar antenna plate that are parallel to and from each other. A pair of planar feed plates have feed edges electrically contacting a surface of the antenna plate to couple electromagnetic energy into and/or out of the antenna plate. | 06-11-2009 |
| 20090146755 | PLANAR EMI FILTER - An EMI filter for use between a power source and an electronic product is formed of at least one planar element including a pair of opposed coreless spiral planar windings, and a planar capacitor. This enables the integration of common mode and differential mode filters into integrated planar structures. Furthermore the planar EMI filter may be combined with an active filter element to provide a hybrid EMI filter comprising both passive and active elements with superior performance. | 06-11-2009 |
| 20090146740 | Average power efficiency enhancement and linearity improvement of microwave power amplifiers - A biasing circuit is used to provide low distortion and high efficiency operation of a microwave power amplifier. The biasing circuit utilizes the nonlinear rectified current of a microwave diode or transistor for biasing the amplifying transistor self-adaptively. The biasing current not only reduces the DC bias power during low-power operation and increases self-adaptively during high-power operation, but also manipulates the intermodulation distortion minimum dynamically. Meanwhile, the biasing circuit distorts the input signals with positive gain and negative phase deviations. Therefore, the average power efficiency of the operation is enhanced, the linearity of the input-output characteristic is improved and the radiated level of adjacent channel power is suppressed. | 06-11-2009 |
| 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 |
| 20090108805 | LOCALIZED CHARGING, LOAD IDENTIFICATION AND BI-DIRECTIONAL COMMUNICATION METHODS FOR A PLANAR INDUCTIVE BATTERY CHARGING SYSTEM - Methods and principles are described for systematizing localized charging, load identification and bi-directional communication in a planar battery charging system. Also described is control circuitry for selectively energizing a primary winding when a load is placed on the platform. The optimization of the size of the receiver winding compared to the transmitter winding is discussed, while the associated communication methods include techniques for load identification, compatibility checks, hand-shaking and communication of charging status. | 04-30-2009 |
| 20090036566 | BIODEGRADABLE COMPOSITE, PRODUCT MADE THEREFROM, AND METHOD OF MANUFACTURE THEREOF - Biodegradable composites and products, and methods of their manufacture are presented. The composites typically comprise 10 wt % to 80 wt % of a lignocellulosic material derived from an agricultural residue or obtained from a natural source, 20 wt % to 80 wt % of a polymer binder, 5 wt % to 20 wt % of a compatibilizer, and an effective amount of a processing aid. One method of manufacture of a product is by injection molding. | 02-05-2009 |
| 20090033626 | COMPUTER MOUSE - A pad-free radio-frequency mouse includes an ergonomic design such that the mouse is contoured to a user's hand, a Radio-Frequency mouse transmitter, and a USB Radio-Frequency receiver. With the usual mouse pad removed, the cursor on a monitor can be subtly maneuvered by moving one's thumb or fingers over an optical sensor in the mouse. Practically all functions found in existing mice and new functions can be implemented via five or more buttons provided adjacent the optical sensor. | 02-05-2009 |
| 20090022969 | Ultrahard multilayer coating comprising nanocrystalline diamond and nanocrystalline cubic boron nitride - A multilayer coating (MLC) is composed of two chemically different layered nanocrystalline materials, nanodiamond (nanoD) and nano-cubic boron nitride (nono-cBN). The structure of the MLC and fabrication sequence of layered structure are disclosed. The base layer is preferably nanoD and is the first deposited layer serving as an accommodation layer on a pretreated substrate. It can be designed with a larger thickness whereas subsequent alternate nano-cBN and nanoD layers are typically prepared with a thickness of 2 to 100 nm. The thickness of these layers can be engineered for a specific use. The deposition of the nanoD layer, by either cold or thermal plasma CVD, is preceded by diamond nucleation on a pretreated and/or precoated substrate, which has the capacity to accommodate the MLC and provides excellent adhesion. Nano-cBN layers are directly grown on nanodiamond crystallites using ion-assisted physical vapor deposition (PVD) and ion-assisted plasma enhanced chemical vapor deposition (PECVD), again followed by nanodiamond deposition using CVD methods in cycles until the intended number of layers of the MLC is obtained. | 01-22-2009 |
| 20090021161 | ORGANIC ELECTROLUMINESCENT DEVICES INCORPORATING UV-ILLUMINATED FLUOROCARBON LAYERS - A simple and efficient method of increasing conductivity of the fluorocarbon film is disclosed. By illuminating the fluorocarbon film under ultraviolet light (UV-CFx), the film conductivity can be increased by five orders of magnitude. Devices using such a UV-treated, conductive fluorocarbon film as a buffer layer give much better performance in terms of lower operational voltage and enhanced operational stability. The improved smoothness and lowered hole injection barrier height with UV-CFx are responsible for the enhanced performance of electroluminescent devices. | 01-22-2009 |
| 20080309431 | PLANAR EMI FILTER - An EMI filter for use between a power source and an electronic product is formed of at least one planar element including a pair of opposed coreless spiral planar windings, and a planar capacitor. This enables the integration of common mode and differential mode filters into integrated planar structures. | 12-18-2008 |
| 20080303378 | SURFACE ACOUSTIC WAVE (SAW) DEVICES BASED ON CUBIC BORON NITRIDE/DIAMOND COMPOSITE STRUCTURES - A surface acoustic wave (SAW) device which is made of cBN/diamond composite structures and the fabrication method are disclosed. In the SAW device based on cubic boron nitride and diamond composite structures, the diamond hard layer includes randomly-oriented polycrystalline diamond (poly-D), oriented (heteroepitaxial) diamond, single-crystal diamond wafers and nanocrystalline diamond (nano-D) films. The cBN film with a sound velocity close to that of diamond serves as the piezoelectric layer, which was directly deposited on diamond hard layer without any soft sp | 12-11-2008 |
| 20080278112 | Auxiliary Winding for Improved Performance of a Planar Inductive Charging Platform - A battery charging apparatus comprises an inductive charging platform including a charging surface on which an electrical device to be charged is to be placed, and a first winding for generating lines of magnetic flux generally perpendicular to the charging surface. To compensate for voltage sag caused by a reduction in the flux generated by the first winding, a second winding is located within an area defined by the first winding for generating an auxiliary magnetic flux generally perpendicular to the charging surface. | 11-13-2008 |
| 20080265999 | RADIATION SOURCE - A source of radiation comprises a first low frequency oscillator | 10-30-2008 |
