| HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITED Patent applications |
| Patent application number | Title | Published |
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| 20120121085 | System and Method for Content Distribution with Broadcast Encryption - A content distribution method with broadcast encryption, comprising an encryption process that includes the computation of a ciphertext using a differential ciphertext generation method. The ciphertext needs to be recomputed whenever the subscriber set changes. The differential ciphertext generation method computes the new ciphertext by reusing previously preserved computational results of a previous ciphertext, thereby improving the efficiency of the system. A content distribution method with broadcast encryption also comprises a decryption process that includes the reconstruction of the encryption secret that is used for decrypting the encrypted content. A wide window point addition method is used in the encryption secret reconstruction. The wide window point addition method reuses previously preserved computational results of group-divided point additions of public parameters, thereby improving the efficiency of the system. A clustering solution with multiple instances of key server and entitlement server allows the expansion of user population in the content distribution network. | 05-17-2012 |
| 20120114036 | Method and Apparatus for Multiview Video Coding - The present invention relates to method and apparatus for multiview video coding. In particular, the present invention describes a disparity compensated prediction to exploit the inter-view correlation in multiview video coding by providing stretching, compression, and shearing (SCSH) disparity compensation to approximate the actual disparity effects in addition to the translational disparity. A sub-sampled block-matching disparity estimation technique is provided to implement the SCSH disparity compensation which makes use of the interpolated reference frames for subpixel motion and disparity estimation in conventional hybrid video coding structure. | 05-10-2012 |
| 20120110241 | SYSTEM FOR NAND FLASH PARAMETER AUTO-DETECTION - A system comprising a NAND flash memory device having a multiplicity of parameters; a flash controller configured to perform a NAND flash memory parameter automatic detection process including reading a device identifier of the NAND flash memory device and proceeding if a valid device identifier value is returned, detecting an address cycle and a block type of the NAND flash memory device, detecting a page size of the NAND flash memory device, detecting a spare size of the NAND flash memory device, detecting a memory size of the NAND flash memory device, and detecting a block size of the NAND flash memory device. | 05-03-2012 |
| 20120086213 | ELECTRIC POWER GENERATOR WITH FERROFLUID BEARINGS - An electric generator using ferrofluid bearings is provided. The generator includes stators having plural magnets separated by a yoke of magnetizable materials. A rotor configured to rotate in a horizontal plane is positioned between the stators. The rotor includes plural coils in which current is induced during rotation from passing through the magnetic fields generated by the stators. A first set of ferrofluid bearings is positioned between the first stator and the rotor and a second set is positioned between the rotor and the second stator. A third set of ferrofluid bearings is positioned adjacent to the periphery of the rotor and configured to center the rotor. In one embodiment, the electric generator is wind-driven and supported in a wind collection housing. | 04-12-2012 |
| 20120086212 | APPARATUS FOR WIND COLLECTION - The present invention provides an omnidirectional wind collection apparatus. The wind collector includes an outer housing with a peripheral wind inlet circumferentially formed therein. An inner housing disposed within the outer housing has an inner surface with a first opening at a lower end thereof to guide the collected wind to a smaller second opening at the top end. The inner surface is curved between the bottom and top openings to form a progressively narrower passage. The configuration of the inner surface creates a Venturi effect such that the wind is accelerated toward the second opening. A wind pass-through portion is formed above the second opening in the inner housing. Based on the Bernoulli effect, the passage of uncollected wind through this portion creates a low pressure region that expedites flow of collected wind through the first and second openings of the inner housing. | 04-12-2012 |
| 20120038423 | VARIABLE GAIN BICMOS AMPLIFIER - An amplifier circuit comprising: a MOSFET amplifier circuit; a BJT amplifier circuit; a MOSFET switch circuit arranged for switching between the MOSFET amplifier circuit and the BJT amplifier circuit to implement different gain modes of the amplifier circuit. | 02-16-2012 |
| 20120030367 | System And Method For Evaluating Network Transport Effects On Delivery Of Media Content - A system and a method for evaluating transport of data segments of media content bitstream over a peer-to-peer network by streaming data chunks of a media content through a peer-to-peer network, generating network transport distortion on the data chunks using live experiments, simulation, or artificial generation, determining a playback strategy of each of the data segment at the receiver end, and evaluating a playback performance of the media content bitstream under the playback strategy. | 02-02-2012 |
| 20120002726 | Method and apparatus for scalable video coding - The present invention relates to method and apparatus for scalable video coding. In particular, the present invention describes a scalable video coding method and a layered video representation that achieves better video quality with more efficient bitstream representation and scalability, and yet is compliant with various codec standard from base layer to enhancement layers so that it incurs minimum modification to existing hardware or system deployed in the field. | 01-05-2012 |
| 20120000974 | Self-powered Electronic Label - An electronic label system is provided which includes a data source having information to be displayed by an electronic label. An optical source such as an LED array broadcasts optical signals modulated with the data source data to plural electronic labels. Each electronic label has an optical receiver which receives the modulated optical signals and also receives unmodulated optical signals to supply power to an energy storage device. A mode switch switches the optical receiver between a signal reception mode and an energy storage device power-supplying mode. One or more bistable displays display the data received from the modulated optical signals. Through the use of bistable displays, the power consumption of the electronic label is greatly reduced while use of a single receiving element for receiving both the signal light and power storage light reduces the number of components needed to assemble the electronic label, thus reducing cost. | 01-05-2012 |
| 20110284906 | VERTICAL LIGHT EMITTING DIODE DEVICE STRUCTURE AND METHOD OF FABRICATING THE SAME - A method of fabricating a compound semiconductor vertical LED is provided. A first growth substrate capable of supporting compound semiconductor epitaxial growth thereon is provided. One or more epitaxial layers of compound semiconductor material such as GaN or InGaN is formed on the first growth substrate to create a portion of a vertical light emitting diode. Plural trenches are formed in the compound semiconductor material. Passivating material is deposited in one or more trenches. A hard material is at least partially deposited in the trenches and optionally on portions of the compound semiconductor material. The hard material has a hardness greater than the hardness of the compound semiconductor. A metal layer is deposited over the compound semiconductor material followed by metal planarization. A new host substrate is bonded to the metal layer and the first growth substrate is removed. Dicing is used to form individual LED devices. | 11-24-2011 |
| 20110261676 | CM/PAPR REDUCTION FOR LTE-A DOWNLINK WITH CARRIER AGGREGATION - The present invention relates to the reduction of the CM and PAPR of an LTE-A downlink signal after carrier aggregation. The CM and PAPR of the aggregated signal are reduced by introducing cyclic time shifts to the OFDM symbols in each of the component carriers (CC). Out of all the aggregated CCs, one of them is chosen to have zero cyclic time shift, meanwhile an optimal amount of cyclic time shifts is introduced into each of the other aggregated CCs. The optimal cyclic time shift for each CC is calculated by applying every possible shift value to all of the OFDM symbols in that CC and working out for each case the CM value when the OFDM signal of that CC is combined with those in other shifted CCs. For each CC, the optimal cyclic time shift is the amount of cyclic shifts applied to that CC which would give the lowest peak “combined CM value”. | 10-27-2011 |
| 20110243228 | METHOD AND APPARATUS FOR VIDEO CODING BY ABT-BASED JUST NOTICEABLE DIFFERENCE MODEL - The present invention relates to method and apparatus for video coding by ABT-based just noticeable difference (JND). For building the just noticeable difference model, spatial content information (SCI) is used to represent the spatial appearance similarity between one macroblock and its sub-blocks and the motion characteristic distance (MCD) is used to represent the motion characteristics similarity between one macroblock and its sub-blocks. For intra frames, the balance strategy based on the obtained SCI of the macroblock is used to generate the ABT-based JND model. For inter frames, the balanced strategy based on the obtained SCI and MCD of the macroblock is used to generate the ABT-based JND model. Using the ABT-based JND model, the residual coefficients for each block in a frame is filtered to obtain a reduced set of residual coefficients for transmission without degradation in visual quality. | 10-06-2011 |
| 20110242765 | SEMICONDUCTOR PACKAGE AND METHOD OF MANUFACTURING THE SAME - The subject invention relates to a semiconductor package and method of manufacturing the same. The semiconductor package of the subject invention comprises a substrate with a through hole penetrating therethrough; a semiconductor chip positioned on the substrate covering the through hole; and a thermal conductive device filling the through hole and contacting the semiconductor chip. According to the subject invention, the thermal resistance in the structure of the semiconductor package is substantially reduced and thus desirable performance of heat spreading or dissipation is achieved. In addition, the production cost and size of the semiconductor package are also reduced. | 10-06-2011 |
| 20110241986 | INTERACTIVE PROJECTION DEVICE - The subject invention relates to an interactive projection device. The interactive projection device includes a light source configured to emit an input light beam, wherein the light source comprises a visible light emitting device; a first beam splitter configured to split the input light beam into first and second split light beams; a second beam splitter configured to split a scattered light beam received from a surface into third and fourth split light beams; an image forming device configured to produce an image light beam based on the first split light beam and emit the image light beam onto the surface through the first and second splitters, thereby generating a projection image on the surface; and a detector configured to detect the invisible light of the third split light beam, thereby acquiring a scattering image from the surface. | 10-06-2011 |
| 20110204752 | SELF-POWERED IMPULSE DETECTION SYSTEM - A self-powered impulse detecting system comprising a signal transmitter; an energy storage component; and an energy harvester comprising a top plate configured to receive a stress impulse by an external object on its top surface; a bottom plate positioned opposite to the top plate and leaving room in between the bottom plate and the top plate; an elastic element positioned in between the top plate and the bottom plate; a bendable substrate attached at a first end to the bottom surface of the top plate, the bendable substrate is configured to bend freely, colliding with the top plate and a stopper; a piezoelectric element positioned on the bendable substrate; a deadweight attached to a second end of the bendable substrate; wherein collisions between the bendable substrate, the top plate and the stopper cause the bendable substrate to bend along with the piezoelectric element to generate power. | 08-25-2011 |
| 20110192221 | VALVE WITH RADIATING STRUCTURE FOR A TIRE PRESSURE MONITORING SYSTEM - A valve for a tire pressure monitoring system in which the valve acts a coaxial conductor to transmit a signal to a receiver presented. A valve stem electrically isolated from a valve pin form the coaxial conductor. In a tire pressure monitoring system, a tire pressure measurement module is positioned inside a tire. In one embodiment, a conductive radiating structure is electrically connected or coupled to the valve pin to receive the tire pressure information signal and transmit it to a receiver. The above configuration further permits a rechargeable battery in the tire pressure measurement module to be recharged via the tire valve. The valve pin and valve stem, being electrically isolated from one another, are used as recharging paths for the battery. | 08-11-2011 |
| 20110165854 | CURRENT-MATCHING INTERMODULATION SUPPRESSION - A circuit is provided for suppression of second-order intermodulation in a double-balanced mixer circuit. The circuit includes a duplicate transconductor element for duplicating AC current in a transconductor pair of the double-balanced mixer circuit. A fundamental cancellation element cancels a fundamental component of an AC current of the duplicate transconductor element, while preserving a second-order intermodulation component. A phase inversion element feeds an output current of the fundamental cancellation element to the transconductor pair of the double-balanced mixer circuit, to substantially remove the second-order intermodulation component from a differential output of the double-balanced mixer circuit. | 07-07-2011 |
| 20110158308 | EMBEDDED TRANSMISSION OF MULTIPLE SERVICES IN A DIGITAL TERRESTRIAL TELEVISION MULTIMEDIA BROADCASTING (DTMB) SYSTEM - A system and method is described for transmitting and receiving terrestrial and mobile services in one spectrum in a Digital Terrestrial Television Multimedia Broadcasting (DTMB) terrestrial network compatible with conventional terrestrial receivers. Terrestrial service data and mobile service data to be broadcast are provided. The packet headers for the mobile service data are scrambled and the terrestrial service data is scrambled. The terrestrial service data and mobile service data is multiplexed together to form multiplexed terrestrial service data and mobile service data. The multiplexed terrestrial service data and mobile service data is received at a terrestrial DTMB receiver which distinguishes the terrestrial service data from the mobile service data on the basis of packet headers. At a mobile DTMB receiver, the multiplexed terrestrial service data and mobile service data is received and control frames are used to distinguish the terrestrial service data from the mobile service data. | 06-30-2011 |
| 20110157281 | PRINTHEAD FOR THERMAL INKJET PRINTING AND THE PRINTING METHOD THEREOF - The present invention relates to a printhead for thermal inkjet printing and the printing method thereof. The printhead comprises: a substrate having a plurality of orifices with a firing element in each of said plurality of orifices, wherein said plurality of orifices are arranged in a single column, and said printhead is disposed at an angle to a horizontal direction along which said printhead scans; and a firing circuits for energizing said plurality of firing elements to eject ink on a printing medium by respectively transmitting a plurality of firing signals to said plurality of firing elements. According to the present invention, the print speed and resolution can be improved. | 06-30-2011 |
| 20110157026 | COORDINATE LOCATING METHOD, COORDINATE LOCATING DEVICE, AND DISPLAY APPARATUS COMPRISING THE COORDINATE LOCATING DEVICE - A coordinate locating device for a display apparatus is provided, which can have lower manufacturing costs and can locate the coordinates of a single or multiple objects. The coordinate locating device includes a light source configured to emit light, wherein said light source comprises a light emitting device, at least one reflector configured to reflect the light from the light source, and a detector configured to detect the light reflected by the at least one reflector, wherein the light source and the detector are disposed at different positions on the same edge of the coordinate locating device. | 06-30-2011 |
| 20110122099 | MULTIPLE-INPUT TOUCH PANEL AND METHOD FOR GESTURE RECOGNITION - A touch panel capable of recognizing at least one gesture and the method thereof are provided. The touch panel comprises: a first optical unit, comprising a first light emitting element and a first light receiving element, arranged at a first position of the touch panel; a first optical element arranged along a first edge of the touch panel for reflecting light; a second and a third optical element arranged along a second and a third edge of the touch panel, respectively, for retro-reflecting the light, the second edge being adjacent to both the third edge and the first edge; and a processing unit for recognizing the at least one gesture according to changes to distance and slope of possible touch points. | 05-26-2011 |
| 20110116105 | COORDINATE LOCATING METHOD AND APPARATUS - A coordinate locating apparatus for locating at least one touch point on a plane and the method thereof are provided. The coordinate locating apparatus comprises: a first detecting unit, comprising a first light emitting element and a first light receiving element, arranged at a first location of the plane; a second detecting unit, comprising a second light emitting element and a second light receiving element, arranged at a second location of the plane; a first optical element arranged along an edge of the plane for reflecting and retro-reflecting light from the first and the second light emitting elements; and a second and third optical elements arranged along two edges of the plane for performing at least one of reflecting and retro-reflecting light from the first and the second light emitting elements or light reflected from the first optical element, both of the two edges being adjacent to the edge along which the first optical element is arranged, wherein the at least one touch point is located on the basis of the detected intensities of light received by the first and the second light receiving elements, and the detected intensities of light are compared with a first threshold and a second threshold. | 05-19-2011 |
| 20110090965 | Generation of Synchronized Bidirectional Frames and Uses Thereof - A digital video processing method implementable on an apparatus, comprising performing on a reconstructed digital video frame, by a processor, a transform | 04-21-2011 |
| 20110090963 | METHOD AND APPARATUS FOR ZOOM MOTION ESTIMATION - In accordance with an example embodiment of the present invention, the present invention provides method and apparatus for motion compensated prediction. Apart from translational motion, zoom motion is taken into account by sampling an interpolated frame with one or more selected sampling rates to generate one or more zoom reference frames; matching a frame with the zoom reference frames; and determining one or more motion data. | 04-21-2011 |
| 20110090961 | METHOD AND APPARATUS FOR ADAPTIVE QUANTIZATION IN DIGITAL VIDEO CODING - The invention relates to adjusting the quantization parameter in digital video coding. A shift value (QP Shift) is used to adjust the quantization parameter. The shift value is determined in a determining step | 04-21-2011 |
| 20110041106 | Integrated Circuit Modeling Method and Framework Tool - An integrated circuit modeling method | 02-17-2011 |
| 20110037051 | OPTIMIZATION OF POLISHING STOP DESIGN - The present invention provides a method of fabricating vertical LED structures in which the substrate used for epitaxial layer growth is removed through polishing. The polishing technique used in an exemplary embodiment is chemical mechanical polishing using polish stops to provide a sufficiently level plane. Polish stops are provided in the multilayer structure before polishing the surface, the hardness of the polish stop material being greater than the hardness of the material that needs to be removed. Consequently, vertical LEDs can be produced at a lower cost and higher yield compared to either laser lift-off or conventional polishing. Exemplary vertical LEDs are GaN LEDs. The polish stops may be removed by saw dicing, laser dicing or plasma etching. | 02-17-2011 |
| 20100329341 | METHOD AND APPARATUS FOR CODING MODE SELECTION - Method and apparatus for providing a fast and accurate video coding process are disclosed. After checking the coding history of certain coded video frame units of a video, the order of the inter prediction and the intra prediction is adaptively exchanged for each coding video frame unit of an inter frame. Furthermore, the computations for coding modes in the latter part of the computation order are selectively skipped so as to speed up the coding process without degrading the video quality. | 12-30-2010 |
| 20100328539 | METHOD AND APPARATUS FOR MEMORY REUSE IN IMAGE PROCESSING - This invention relates to a method of reusing data in memory for motion estimation. Only additional data is required to prepare reference block so as to reduce the data transfer to the memory. The additional data will be arranged with the existing data in the memory to provide the reference block. Then the data in the memory is read in a specific way to retrieve the reference block. Using this invention, the bandwidth requirement and internal memory can be greatly reduced without any additional logic operation. | 12-30-2010 |
| 20100249617 | Apparatus for determining blood pressure - An apparatus for determining the blood pressure of a patient which allows the patient to first measure his measured blood pressure using a blood pressure measuring device and then, at a later time, estimate his current blood pressure using a blood pressure calculating device that includes a mathematical model for estimating blood pressure based on a current change in blood pressure induced by a heart beat and the previously measured blood pressure. The apparatus includes a transmitter device that detects the presence of a blood pressure calculating device connected to or in proximity of the blood pressure measuring device and transmits the previously measured blood pressure value to the blood pressure calculating device. | 09-30-2010 |
| 20100228972 | System and Method for Content Distribution with Broadcast Encryption - The claimed invention relates to system and method for providing encrypted content via a distribution network | 09-09-2010 |
| 20100220786 | METHOD AND APPARATUS FOR MULTIPLE REFERENCE PICTURE MOTION ESTIMATION - The claimed invention relates to efficient use of data for multiple reference picture motion estimation. Multiple reference picture motion estimation involves a large amount of data due to the processing of multiple reference pictures. The claimed invention discloses a method | 09-02-2010 |
| 20100135588 | METHOD AND APPARATUS FOR SUBPIXEL-BASED DOWN-SAMPLING - This invention relates to method and apparatus for subpixel-based down-sampling. This invention implements an adaptive filter | 06-03-2010 |
| 20090299715 | ANGULAR-DOMAIN CHANNEL MODEL AND CHANNEL ESTIMATION - A method of modeling wireless communication channels in angular domain is disclosed. The method includes considering radiation patterns | 12-03-2009 |
| 20090296834 | TIME DIVISION SYNCHRONOUS ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SUPPORTING FREQUENCY DIVISION MULTIPLE ACCESS - A method of time domain synchronous orthogonal frequency division multiplexing (TDS-OFDM) communication, including the steps of: preparing OFDM-body | 12-03-2009 |
| 20090167670 | METHOD OF DETERMINING LUMINANCE VALUES FOR A BACKLIGHT OF AN LCD PANEL DISPLAYING AN IMAGE - A controller for a backlight for a liquid crystal display (LCD) panel has at least two methods for determining illumination value for the backlight. The controller selects between the two methods based on properties of the image being displayed. The properties of the image include its color and its intensity. | 07-02-2009 |
| 20090160877 | METHOD AND APPARATUS FOR ENHANCING AN IMAGE DISPLAYED ON AN LCD DEVICE - A method and apparatus for image enhancement in a display illuminated by a lighting device. Enhancement is via use of a non-linear mapping function. An illumination level for the lighting device is determined and used with the mapping function to find a compensation factor for each pixel of the image. The brightness property of each pixel is adjusted by its compensation factor. | 06-25-2009 |
| 20090140808 | GAIN CONTROL CIRCUIT - A gain control circuit including a resistor with a first terminal and a second terminal; an operational amplifier with an inverting terminal thereof electrically coupled to said first terminal of said resistor; a non-inverting terminal thereof; and an output terminal thereof; an amplifier circuit for transforming the voltage change of said operational amplifier output into a substantially exponential current change; wherein the output of said amplifier circuit is electrically coupled to said inverting terminal of said operational amplifier. The above described gain control circuit is able to perform wide bandwidth input signal buffering with linearity under low voltage and low power conditions. The circuit also offers low output impedances without the need of additional buffers and hence minimizing circuit size and manufacturing costs. | 06-04-2009 |
| 20090092328 | METHOD FOR MOTION COMPENSATION - A method for use in video compression is disclosed. In particular, the claimed invention relates to a method of more efficient fractional-pixel interpolation in two steps by a fixed filter ( | 04-09-2009 |
