Patents Assigned to SCIENCE AND TECHNOLOGY
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Publication number: 20070280255Abstract: An efficient media streaming method utilizing a globally load balanced overlay network. This method makes use of capacity per out-degree values to construct and maintain an overlay network for media streaming in a Peer-to-Peer environment.Type: ApplicationFiled: April 25, 2007Publication date: December 6, 2007Applicant: The Hong Kong University of Science and TechnologyInventors: Danny Tsang, Hao Luan, Kin-Wah Kwong
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Publication number: 20070280116Abstract: A system and methodology for efficient multi-user transmission in a wireless communication with limited feedback are provided. A non-cooperative feedback-based multi-user transmission scheme is described, wherein users in a wireless communication system may independently communicate selected channel information feedback to the base station. The base station may then choose suitable precoding weights based on the received channel information feedback. An adaptive threshold-based feedback approach is also described for multi-user transmission, wherein the quality of feedback for each user can be quantified by a special threshold by the system prior to engaging in multi-user communication.Type: ApplicationFiled: May 30, 2007Publication date: December 6, 2007Applicant: HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Cheng Wang, Ross Murch
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Publication number: 20070279231Abstract: The invention provides an asymmetric UHF RFID tag antenna that variously comprises a capacitive load, a folded loop conductor and an inductive matching element, which provides a differential input for RFID tag circuitry. The design provides a small form factor while maintaining a high gain and impedance tuning properties. Various refinements and associated devices and systems using the design are provided and disclosed according to a host of optional embodiments.Type: ApplicationFiled: June 1, 2007Publication date: December 6, 2007Applicant: HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Chi Ho Cheng, Ross Murch
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Patent number: 7305091Abstract: A quantum cipher communication system includes a sender's apparatus, a recipient's apparatus and a transmission path. The sender's apparatus includes a beam splitting for splitting a laser beam into a weak signal light and an intense reference light, a phase modulation unit for imparting a phase change on either the weak signal light or the intense reference light. The recipient's apparatus includes a phase modulation unit for imparting a phase change on either the weak signal light or the intense reference light, a superimposing unit for superimposing the weak signal light and the intense reference light, a pair of photoconductive diodes for converting two output lights from the superimposing unit into electric signals, and an amplifying unit for amplifying a difference signal between the electric signals, wherein the recipient assigns bit values by comparing the difference signal with threshold values.Type: GrantFiled: August 10, 1999Date of Patent: December 4, 2007Assignee: Japan Science and Technology AgencyInventor: Takuya Hirano
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Patent number: 7305331Abstract: The present invention relates to a system and method for examining pathways. In particular, the present invention provides a system and method for examining pathways that underlie cellular functions, specifically signal transduction pathways. One aspect of the invention relates to the prediction of (a) functional properties of a protein, (b) potential interaction partners of the protein, and/or (c) potential target biochemical pathways within which the protein may interact. Thus, according to the invention, the influence of a given stimulus on a biochemical pathway can be assessed.Type: GrantFiled: February 10, 2003Date of Patent: December 4, 2007Assignee: New World Science & Technology, Inc.Inventors: Eric B. Allen, Gilberto Fragoso, John Armstrong, Sandra Allen
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Patent number: 7303385Abstract: A heating tool for shaping a soft material is provided. The heating tool is mounted to a predetermined position of a shaping apparatus and connected to a power source provided at a predetermined position of the shaping apparatus to melt and shape the soft material under a high temperature. The heating tool includes shaping parts which come in contact with the soft material to melt the soft material, and heating parts which are provided to be in non-contact with the soft material. The heating parts collect the molten soft material and thermally decompose the molten soft material. The heating tool enables a surface of the soft material to be perfectly thermally decomposed. Thus, the present invention prevents the soft material from being undesirably deformed, due to the molten material remaining after a shaping process.Type: GrantFiled: January 26, 2005Date of Patent: December 4, 2007Assignee: Korea Advanced Institute of Science and TechnologyInventors: Dong Yol Yang, Hyo Chan Kim, Sang Ho Lee
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Patent number: 7303883Abstract: Detection of Plasmodium ssp. by analysis of extrachromosomal DNA. It has been found that the molecular composition, physical arrangements, and nucleotide sequences of the extrachromosomal plastid-like element and mitochondrial element are highly conserved in different Plasmodium ssp. The high degree of homology has been used to design genera-specific or species specific diagnostic assays with a low frequency of false negatives. Plastid and mitochondrial DNA sequences are disclosed. The use of the sequences is claimed for detection, prophylactic, and therapeutic treatment of Plasmodium ssp. infection in human or other animals.Type: GrantFiled: November 9, 2005Date of Patent: December 4, 2007Assignees: The National University of Singapore, Agency for Science, Technology and ResearchInventors: Anna Kate Ursula Kara, Robert Chin Yao Ting, Jill Maelon Tham, James Stuart Nelson, Theresa May Chin Tan
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Patent number: 7304590Abstract: An arithmetic decoding method and apparatus are provided. The apparatus includes an arithmetic decoding apparatus comprising an arithmetic decoding unit determining a range of a most probable symbol and a range of a least probable symbol required to decode a current symbol, comparing a current offset and the range of the most probable symbol required to decode the current symbol, and determining and outputting the value of the current symbol. The apparatus also includes a predicted arithmetic decoding unit determining a range of a most probable symbol and a range of a least probable symbol which are required to decode a next symbol using a prediction that the current symbol is the most probable symbol, comparing a next offset and the range of the most probable symbol required to decode the next symbol, and determining and outputting a range of the next symbol.Type: GrantFiled: January 24, 2006Date of Patent: December 4, 2007Assignees: Korean Advanced Institute of Science & Technology, Samsung Electronics Co., Ltd.Inventor: In-cheol Park
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Patent number: 7305155Abstract: A wavelength separator includes a one-dimensional photonic crystal structure formed by providing a plurality of grooves in parallel with one another at uniform intervals in a homogeneous medium, and has an incident end face formed obliquely with respect to a direction in which the grooves extend, and an output end face formed approximately perpendicular to the incident end face.Type: GrantFiled: March 24, 2005Date of Patent: December 4, 2007Assignees: Nippon Sheet Glass Company, Limited, National Institute of Advanced Industrial Science and TechnologyInventors: Kazuaki Oya, Tatsuhiro Nakazawa, Shigeo Kittaka, Keiji Tsunetomo, Junji Nishii
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Patent number: 7304096Abstract: There is provided a highly functional one-step light-curing dental adhesive composition i) based on a multifunctional prepolymer mixture of 2,2-bis-[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]propane (“Bis-GMA”) and a multifunctional prepolymer formed by substitiuting hydrogen atoms of hydroxyl groups present in Bis-GMA molecules with methacrylate groups, in which the Bis-GMA is used as a base prepolymer of conventional dental adhesive compositions; and ii) comprising and acidic monomer for removing a portion of smear layer, which is allowed to be bonded without separate treatment of acid etchant, an adhesive monomer having both hydrophobic and hydrophilic properties, a hydrophilic monomer which is allowed to be bonded in the present of moisture, an inorganic filler for improving mechanical properties, diluent, water for demineralization, a photoinitiation system and other additives.Type: GrantFiled: December 29, 2004Date of Patent: December 4, 2007Assignee: Korea Institute of Science and Technology and Dentkist, Inc.Inventors: Dong Keun Han, Kyu Hyun Baek, Min Sung Kim, Sang Soon Park, Hyun Chul Goo, Choong Ho Kim
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Patent number: 7304315Abstract: A three-dimensional analyzing device includes a first beam source for generating a first beam, a second beam source for generating a second beam, an optical system for spatially overlapping the first and second beams at least partly and irradiating the beams onto a specimen to three-dimensionally confine a photoactive region in a specimen, and a photo acceptance element for accepting a response light emitted from the photoactive region. Preferably, the device further includes an operation unit for calculating a correlation function of a response light in the time domain based on the output of the photo acceptance element to analyze a desired physical value of the specimen.Type: GrantFiled: April 13, 2006Date of Patent: December 4, 2007Assignees: Japan Science & Technology Agency, Olympus Corporation, Nippon Roper Co., Ltd.Inventors: Yoshinori Iketaki, Masaaki Fujii, Takeshi Watanabe, Takashige Omatsu, Kimihisa Yamamoto, Toshio Suzuki
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Publication number: 20070274894Abstract: The present invention provides a method for separating two highly pure fullerenes from a mixture of fullerenes comprising crystallizing a first fullerene component and a second fullerene component, wherein the phase equilibrium behavior of the mixture fed to a crystallizer is characterized by a region(s) where a pure fullerene of the two fullerenes or the solid solution or solvate thereof can be crystallized out.Type: ApplicationFiled: January 12, 2007Publication date: November 29, 2007Applicant: THE HONG KONG UNIVERSITY OF SCIENCE & TECHNOLOGYInventor: Ka Ng
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Publication number: 20070273765Abstract: At least one image of the environment is taken using either an image capturing device of the monitoring system. Based on the image of the environment, at least one background image is generated. The background image, which comprises a plurality of pixels, is divided into pixel blocks. In each pixel block, at least one data cluster is formed using at least one feature of the pixels in the pixel block. The data cluster formed in each pixel block is described as a data distribution having a mean value and a standard deviation from the mean value. After generating the background image, a subsequent image is taken by the monitoring system. Each pixel of the subsequent image is compared with the data cluster of the block of the background image correspond to the pixel, and a first discrepancy value is generated accordingly.Type: ApplicationFiled: June 13, 2005Publication date: November 29, 2007Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHInventors: Junxian Wang, How Eng, Siew Wah Kam, Wei Yau
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Publication number: 20070274075Abstract: A laser illuminator comprising at least one optical diffusion means capable of modifying an optical diffusion condition (3) and at least one optical suppression means for suppressing divergence of light (100), wherein the optical diffusion means and the optical suppression means are disposed along an optical path of a laser beam (6) radiating from a laser source and the laser beam is converted into a diffused and non-divergent light beam (6-2) for illuminating or exciting an object by passing through the optical diffusion means and the optical suppression means.Type: ApplicationFiled: January 29, 2007Publication date: November 29, 2007Applicant: National Institute of Advanced Industrial Science and TechnologyInventor: Yasushi Nagamune
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Publication number: 20070277268Abstract: The present invention relates to cells or plants that can produce polylactate or its copolymers and to a method for preparing polylactate or its copolymers using the same. More specifically, cells or plants with the ability to produce polylactate or hydroxyalkanoate-lactate copolymers comprise both a gene encoding an enzyme that converts lactate into lactyl-CoA and a gene encoding polyhydroxyalkanoate (PHA) synthase which uses lactyl-CoA as a substrate. Also described is a method for preparing polylactate or hydroxyalkanoate-lactate copolymers which comprises culturing the cells in a medium containing lactate or lactate and various hydroxyalkanoates or culturing the plants. Effective preparation of hydroxyalkanoate-lactate copolymer which comprises various hydroxyalkanoates as well as polylactate, using the cells or the plants, is disclosed.Type: ApplicationFiled: May 24, 2006Publication date: November 29, 2007Applicants: LG Chem, LTD., Korea Advanced Institute of Science & TechnologyInventors: Jun-Hyeong Cho, Si-Jae Park, Sang-Yup Lee, Yu-Kyung Jung
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Publication number: 20070275627Abstract: The present invention relates to a method for fabricating a field emitter electrode, in which carbon nanotubes (CNTs) are aligned in the direction of a generated magnetic field. Specifically, the method comprises the steps of dispersing a solution of carbon nanotubes (CNTs) diluted in a solvent, on a substrate fixed to the upper part of an electromagnetic field generator, and fixing the carbon nanotubes aligned in the direction of an electromagnetic field generated from the electromagnetic field generator. According to the disclosed method, high-density and high-capacity carbon nanotubes aligned in the direction of a generated electromagnetic field can be fabricated in a simple process and can be applied as positive electrode materials for field emission displays (FEDs), sensors, electrodes, backlights and the like.Type: ApplicationFiled: March 2, 2007Publication date: November 29, 2007Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hee-Tae Jung, Sang-Cheon Youn, Young-Koan Ko
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Publication number: 20070273074Abstract: The present invention relates to a method for vibration isolation featuring a two-part supporter made up of two supporters with positive and negative spring characteristics that are connected in series, and another supporter with positive spring characteristics that is installed in parallel with the two-part supporter. Vibration from the floor to the first member is isolated by the springs installed between the floor 1 and the first member 2; vibration transmitted from the first to the second member is isolated by the magnetic levitation mechanism 4 with zero-power characteristics comprising permanent magnets and electromagnets that are installed between the first member 2 and the second member 3 and by the load supporter 5 with positive spring characteristics that is installed between the base and the second member; and the load acting on the second member is supported by said magnetic levitation mechanism and said load supporter.Type: ApplicationFiled: March 30, 2004Publication date: November 29, 2007Applicant: Japan Science and Technology AgencyInventors: Takeshi Mizuno, Daisuke Kishita, Masaya Takasaki
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Publication number: 20070273607Abstract: An antenna array having a plurality of array elements is disclosed. The antenna array comprises a first array element (204A) having a first suspended radiator (207A) and a first ground conductor (206A), the first suspended radiator being displaced from the first ground conductor. The antenna also comprises a second array element (204B) being adjacent to the first array element, the second array element having a second suspended radiator (207B) and a second ground conductor (206B), wherein the second suspended radiator is displaced from the second ground conductor. In the antenna the first ground conductor is adjacent to and displaced from the second ground conductor and the first ground conductor is disposed on a first tier and the second ground conductor is disposed on a second tier to form an at least two-tiered ground conductor.Type: ApplicationFiled: January 20, 2005Publication date: November 29, 2007Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHInventor: Zhining Chen
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Publication number: 20070273575Abstract: A distance measurement sensor and a distance measurement method using the same are disclosed. The distance measurement sensor can use all of a pulse method and a Continuous Wave (CW) method, can select an appropriate measurement method according to the distance to be measured, thereby accurately measuring the distance. The distance measurement sensor solves the reception-signal limitation caused by a transmission leakage signal in the case of the CW method, reduces an amount of power consumption, measures distances of several objects at the same time, and establishes the range of the distance.Type: ApplicationFiled: May 14, 2007Publication date: November 29, 2007Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jongryul Yang, Songcheol Hong
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Publication number: 20070275049Abstract: The present invention provides a vaccine which is capable of inhibiting the growth and formation of tumors which can express an endogenous tumor specific protein. Also disclosed are methods of administering the vaccine to a subject bearing a tumor whose formation and growth is inhibited by the vaccine.Type: ApplicationFiled: December 27, 2006Publication date: November 29, 2007Applicant: Shen Zhen Tsinghua Yuanxing Bio-Pharm Science & Technology Co., Ltd.Inventors: Yuquan Wei, Ling Tian