Patents Assigned to Applied Science & Technology
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Patent number: 7962598Abstract: Systems, apparatuses and methods for processing a concurrent IGRS-UPnP architecture for both IGRS and UPnP standards conformance, and to be used for consumer electronics device interoperability.Type: GrantFiled: April 14, 2008Date of Patent: June 14, 2011Assignee: Hong Kong Applied Science and Technology Research Institute Company LimitedInventors: Ha Yin Sandy Wong, Chi Kong Patrick Wu
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Publication number: 20110122099Abstract: 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.Type: ApplicationFiled: February 3, 2011Publication date: May 26, 2011Applicant: Hong Kong Applied Science and Technology Research Institute Company LimitedInventors: Xiuling ZHU, Chenjung Tsai, Xurong Li
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Patent number: 7948224Abstract: A feedback controller comprises first and second feedback circuits. The first feedback circuit is connected between an input node and an output node and has an error node. The first feedback circuit comprising a feedback amplifier for comparing a feedback signal to a reference signal and providing an error signal, and a comparator for comparing the error signal to a second reference signal and providing an output signal. The second feedback circuit is connected between the input node and the error node and comprises a current source coupled to the error node and a controller coupled to the input node for controlling the current source in response to a value of the feedback signal being above or below a threshold value.Type: GrantFiled: March 30, 2007Date of Patent: May 24, 2011Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.Inventors: Chik Wai Ng, Yat To Wong, David Kwok Kuen Kwong
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Publication number: 20110116105Abstract: A coordinate locating apparatus for locating at least one touch point on a plane and the method thereof are provided.Type: ApplicationFiled: November 29, 2010Publication date: May 19, 2011Applicant: Hong Kong Applied Science and Technology Research Institute Company LimitedInventors: Xiuling ZHU, Chenjung Tsai
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Publication number: 20110109565Abstract: A coordinate locating device capable of locating the coordinates of two or more objects is provided for a display apparatus. The coordinate locating device includes a first detector arranged together with a first light source at a first corner of the coordinate locating device, a second detector arranged together with a second light source at a second corner of the coordinate locating device, at least one reflector configured to reflect light from the first and second light sources, and a mirror arranged on a first edge of the coordinate locating device, configured to reflect mirrored images of two or more objects intruding the coordinate locating device, wherein the first and second detectors detect real images of the two or more objects, and at least one of the first and second detectors further detects the mirrored images of the two or more objects reflected by the mirror.Type: ApplicationFiled: February 4, 2010Publication date: May 12, 2011Applicant: Hong Kong Applied Science and Technology Research Institute Co. Ltd.Inventors: Xiuling Zhu, Yaojun Feng
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Patent number: 7941302Abstract: Method and apparatus for channel simulation is disclosed. The claimed invention provides method and apparatus 1200 to simulate a propagation channel, particularly a multiple-input-multiple-input (MIMO) channel. The claimed invention further provides a method and apparatus for efficient optimization of antenna by the enhanced channel simulation. The claimed invention takes both antenna characteristics and channel characteristics as inputs, and output time-varying channel realizations to generate the system metrics as the optimization target for antenna under optimization. The claimed invention advantageous provides enhanced channel simulation to meet the accuracy requirement of antenna evaluation.Type: GrantFiled: May 30, 2008Date of Patent: May 10, 2011Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.Inventors: Xueyuan Zhao, Chun Kit Lee, Zhengang Pan, Chih-Lin I, Kin Nang Lau, Roger Shu Kwan Cheng
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Patent number: 7939847Abstract: A quasi-vertical light emitting device is provided. According to one embodiment of the present invention, the quasi-vertical light emitting diode includes a sapphire substrate; a plurality of semiconductor layers grown on the sapphire substrate, the plurality of semiconductor layers including an n-GaN layer, an active layer, and a p-GaN layer; a plurality of holes etched in the plurality of semiconductor layers, each of the plurality of holes etched to the sapphire substrate, and a plurality of sapphire holes in the sapphire substrate, each of the plurality of holes aligned with one of the plurality of sapphire holes to form hole walls, the hole walls and bottom deposited with an n-metal and each of the plurality of holes filled with another metal to form a n-electrode contact; an n-mesa in the active layer and the p-GaN layer, the n-mesa deposited with an n-metal and a passivation layer grown over the n-metal; and a p-metal layer deposited on the p-GaN layer, and a p-electrode bonded to the p-metal.Type: GrantFiled: March 31, 2009Date of Patent: May 10, 2011Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.Inventors: Limin Lin, Hung Shen Chu, Ka Wah Chan
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Publication number: 20110102234Abstract: A standoff range, sense-through-obstruction radar system is capable of detecting micro-Doppler, or life form signatures, and movements through obstructions at stand-off ranges and displaying the target information over a live video feed of the area under surveillance. The sense-through-obstruction radar system comprises an antenna assembly that includes a horn antenna and a reflector configured to reflect radio frequency (RF) energy to/from the horn antenna. An antenna pointing assembly supports the antenna assembly. The antenna pointing assembly is configured to move the antenna assembly to point the antenna assembly toward an obstruction. A sensor assembly is mounted to the antenna assembly so that the sensor assembly is aligned with the RF beam formed from the RF energy reflected from the reflector to the horn antenna. The sensor assembly is configured to detect the location of the obstruction and to provide information to assist pointing of the antenna assembly toward the obstruction.Type: ApplicationFiled: October 29, 2010Publication date: May 5, 2011Applicant: VAWD APPLIED SCIENCE AND TECHNOLOGY CORPORATIONInventors: Vinh N. Adams, Robert Adams, Wesley H. Dwelly
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Patent number: 7936109Abstract: Disclosed is an energy harvesting device which can produce electrical power from vibrational energy over a wide range of frequencies. The energy harvester includes a housing having opposing slots. A bendable substrate is at least partially positioned within the housing and at least partially extends through the opposing housing slots. A piezoelectric element is positioned on the bendable substrate and a weight cooperates with the bendable substrate. A stopper is positioned on each end of the bendable substrate that extends outside the housing; the stoppers are configured to maintain a portion of the bendable substrate within the housing such that the bendable substrate is freely movable within the housing. Vibrational energy causes collisions between the bendable substrate and the housing such that the forces on the piezoelectric element generate power.Type: GrantFiled: March 31, 2010Date of Patent: May 3, 2011Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.Inventors: Ziyang Gao, Man Lung Sham, Xiang Chen
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Publication number: 20110090963Abstract: 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.Type: ApplicationFiled: October 16, 2009Publication date: April 21, 2011Applicant: HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITEDInventors: Lai-Man PO, Ka Man WONG, Kwok Wai CHEUNG, Ka Ho NG, Yu LIU
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Publication number: 20110090965Abstract: A digital video processing method implementable on an apparatus, comprising performing on a reconstructed digital video frame, by a processor, a transform 110, a quantization 121, a dequantization 122 and an inverse transform 123 to convert a digital video bitstream with hierarchical B frame structure into a digital video bitstream with a modified hierarchical B frame structure. Bidirectional frames are used as access points via synchronized independent frames to enable applications including single view access in multi-view coding videos and random accessing frames. Improved bitstream switching methods are also disclosed.Type: ApplicationFiled: October 21, 2009Publication date: April 21, 2011Applicant: Hong Kong Applied Science and Technology Research Institute Company LimitedInventors: Yui Lam CHAN, Changhong FU, Wan-Chi SIU, Wai Lam HUI, Ka Man CHENG, Yu LIU, Yan HUO
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Publication number: 20110090805Abstract: Systems and methods which provide a decoupled quality of service (QoS) architecture for communications are shown. Embodiments implement a QoS technique which separates a packet scheduling function and a data packet mapping function in providing communications meeting desired QoS parameters. Accordingly, embodiments provide a QoS architecture in which a packet scheduler is used to determine data packet transmission priorities and in which a data mapper is used to allocate transmission frame space to data packets, wherein the packet scheduling and data mapping algorithms are decoupled or independent. A protocol data unit (PDU) pool is utilized to buffer data packets between the decoupled packet scheduler and data mapper of embodiments to facilitate their combined operation to provide desired QoS delivery.Type: ApplicationFiled: October 21, 2009Publication date: April 21, 2011Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.Inventor: Jiancong Chen
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Publication number: 20110090961Abstract: 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 101. The video nature is determined and compared with a threshold in a comparing step 102 to adjust the shift value adaptively according to the frame type in an adjusting step 103. The shift value shifts the quantization parameter in a shifting step 104.Type: ApplicationFiled: October 19, 2009Publication date: April 21, 2011Applicant: HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITEDInventors: Chi Keung FONG, Wat Kuen CHAM, Ka Man CHENG, Yu LIU
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Patent number: 7922367Abstract: An optical element, a light-emitting component and a direct-lit backlight module having the optical element are provided. The optical element includes a bottom surface, at least one side refractive surface for refracting one part of a light beam incident from the bottom surface, and an upper refractive surface for refracting the other part of the light beam incident from the bottom surface. A maximum included angle formed between the light beam incident from the bottom surface and to be irradiated onto the side refractive surface and the bottom surface is a first angle (?). An included angle formed between a light beam coming out from at least one side refractive surface and the bottom surface is smaller than or equal to the first angle. A maximum included angle formed between the light beam incident from the bottom surface and to be irradiated onto the upper refractive surface and a central axis of the optical element is a second angle (?).Type: GrantFiled: August 8, 2008Date of Patent: April 12, 2011Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.Inventor: Ying Liu
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Patent number: 7924225Abstract: An antenna system comprising a first antenna element, a second antenna element, and a parasitic element, wherein the parasitic element is arranged with regard to the first antenna element and the second antenna element such that a greatest difference in gain between respective antenna patterns of the first and second antenna elements occurs at a null of the pattern of the first antenna element.Type: GrantFiled: June 23, 2008Date of Patent: April 12, 2011Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.Inventors: Angus C. K. Mak, Corbett R. Rowell, Chi-Lun Mak
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Patent number: 7920548Abstract: A switching apparatus for switching packetized voice traffic between a plurality of communication devices, the switching apparatus comprises a multi-layer switch, a plurality of communication ports, control means and ingress processing means, said packetized voice traffic comprises call control packets and medium packets which are exchanged between the communication devices via said communication ports, wherein medium packet traffic from a first communication device to a second communication device is split into a first call segment and a second call segment, the first call segment originates from said first communication devices and terminates at said switching apparatus, the second call segment originates from said switching apparatus and terminates at said second communication device, each medium packet from said first communication device is processed by said ingress processing means of said switching apparatus before onward transmission to said second communication device.Type: GrantFiled: August 18, 2005Date of Patent: April 5, 2011Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.Inventors: Kar-Wing Edward Lor, Wing Hei Luk, Kwan Shum
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Publication number: 20110069078Abstract: Embodiments of methods, systems, or apparatuses relating to adjusting a brightness level associated with at least a portion of a backlight of a display device.Type: ApplicationFiled: September 23, 2009Publication date: March 24, 2011Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.Inventors: Wei Zhang, Min Chen, Weihong Niu, Danding Huang
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Publication number: 20110062454Abstract: A light emitting device with a remotely located light scattering material which improves color mixing property is provided. The light emitting device includes a substrate defining a cavity; one or more light emitting elements bonded to the substrate and positioned in the cavity; at least one first layer covering the one or more light emitting elements, at least part of the at least one first layer within the cavity, wherein the at least one first layer has a refractive index less than the refractive index of the one or more light emitting elements; and at least one second layer including light scattering material disposed on the at least one first layer, wherein the refractive index of the first layer is less than or equal to the refractive index of the second layer.Type: ApplicationFiled: September 11, 2009Publication date: March 17, 2011Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.Inventors: Shan Mei Wan, Ming Lu
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Publication number: 20110057557Abstract: A projection light emitting diode (LED) module is provided. According to one embodiment, the LED module converts LED light to polarized light and emits the polarized light. One embodiments of the LED module includes a reflective polarizer positioned in a light emission path of the LED light, wherein the reflective polarizer polarizes the LED light, and the reflective polarizer further transmits the first polarization state light and reflects the second polarization state light; and a polarization conversion element bonded to the reflective polarizer, the polarization conversion element positioned between the LED light and the reflective polarizer, wherein the polarization conversion element coverts the second polarization state light to a desired polarization state light. A reflecting cup may be provided to increase the reflection of light back through the polarization conversion element and the reflective polarizer. The LED module may be configured for use with commercially available LED packages.Type: ApplicationFiled: September 8, 2009Publication date: March 10, 2011Applicant: Hong Kong Applied Science and Technology Research Institute Co. Ltd.Inventors: Yong Chi, Shou Lung Chen, Weiping Tang
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Patent number: 7902727Abstract: An apparatus and method for generating electricity using piezoelectric material. The apparatus comprises a first elongate member and a second elongate member that are joining together at first and second points which are spaced apart from each other. The second elongate member comprises a piezoelectric element, or has a piezoelectric element mounted thereon. When pressure is applied to the first elongate member, the second elongate member is stretched and the stretching force is applied to the piezoelectric element. This generates electricity. A similar arrangement with a third elongate member may be provided on the other side of the second elongate member. The apparatus may be placed in a shoe or underneath a floor, so that the variation in pressure caused by walking may be used in generate electricity.Type: GrantFiled: August 11, 2009Date of Patent: March 8, 2011Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.Inventors: Man-Lung Sham, Ziyang Gao, Tung Ching Lui, Chang Hwa Chung