Patents Assigned to Advanced Institute of Science and Technology
  • Light guide plate and backlight unit
    Patent number: 9022635
    Abstract: Disclosed are a light guide plate and a backlight unit. The backlight unit according to the present invention includes: a light guide plate; a light source disposed on one side of the light guide plate; and a reflective plate disposed under the light guide plate, wherein, in the cross section of one side of the light guide plate, the light guide plate includes a plurality of unit slits including a first slit and a second slit, wherein the first slit and the second slit are inclined from a top surface toward the inside of the light guide plate with respect to a vertical direction of the top surface, and wherein the first slit and the second slit are symmetrical to each other with respect to the middle portion of the unit slit.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: May 5, 2015
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jun-Bo Yoon, Joo-Hyung Lee, Jeong-Ho Yeon
  • PARALLEL IMAGE RECONSTRUCTION USING FILTER BANKS BASED ON LOW-FREQUENCY PART OF K-SPACE SIGNALS
    Publication number: 20150117735
    Abstract: A method for a parallel image reconstruction is disclosed. The method includes (a) acquiring image information by channel via parallel coils in a magnetic resonance imaging (MRI) scanner; (b) extracting low-frequency signals from the image information; (c) reconstructing low-frequency images from the low-frequency signals; (d) generating filter banks by using the low-frequency images; and (f) reconstructing a final image by using the filter banks. The generating of the filter banks includes separately generating low-frequency image information for reconstruction of magnitude information and low-frequency image information for reconstruction of phase information, and then separately generating a filter for reconstruction of the magnitude information and a filter for reconstruction of the phase information.
    Type: Application
    Filed: May 7, 2014
    Publication date: April 30, 2015
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hyun Wook PARK, Jun Young CHUNG, Dong Chan KIM, Joon Sung CHOI, Ye Ji HAN
  • Photo-curable transparent resin composition
    Patent number: 9018275
    Abstract: Provided is a photo-curable transparent resin in which an oxetane monomer for promotion of photo-curing, control of viscosity, and improvement of physical properties is mixed with a photo-cationically polymerizable cyclo-aliphatic epoxy group-containing oligosiloxane resin prepared by a sol-gel reaction. The photo-cationically polymerizable photo-curable transparent resin added with the oxetane monomer provides a cured product having high curing density and retaining excellent mechanical properties, thermal-mechanical properties, and electrical properties.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: April 28, 2015
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Byeong-Soo Bae, SeungCheol Yang
  • CATALYST SLURRY FOR FUEL CELL, AND ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL USING THE SAME
    Publication number: 20150111124
    Abstract: A catalyst slurry including a catalyst material, a polymer binder, a plurality of inorganic particles, wherein each particle includes an ionic group, a hydrophilic oligomer, and a solvent.
    Type: Application
    Filed: January 27, 2014
    Publication date: April 23, 2015
    Applicants: Korea Advanced Institute Of Science and Technology, Samsung Electronics Co., Ltd.
    Inventors: Suk-Gi HONG, Jung-ock PARK, Joon-hee KIM, Jung-ki PARK, Keun-hwan OH, Yoon-hoi LEE, Min-ju CHOO, Jin-su HA
  • Apparatus and method for hierarchical rate splitting in hierarchical cell communication system
    Patent number: 9014707
    Abstract: Provided is a hierarchical rate splitting method and apparatus in a hierarchical cell communication system. An upper node or a macro base station may adaptively determine a hierarchical splitting mode based on a channel condition of a channel between the macro base station and a macro terminal and/or a performance of pico terminals in comparison to a performance of the macro terminal.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: April 21, 2015
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Won Jae Shin, Wan Choi, Hyun Ho Choi, Myung Gil Kang, Chang Yong Shin, Won Jong Noh
  • Mobile apparatus executing efficient dataflow execution for mobile context monitoring, method of executing dataflow using the same, method of context monitoring using the same and context monitoring system including the same
    Patent number: 9015729
    Abstract: A mobile apparatus includes a processing planner and a plan processor. The processing planner generates a plurality of resource use plans in response to a context monitoring query (CMQ) of an application, and selects a final plan satisfying a request of the CMQ among the resource use plans. The plan processor executes the final plan. Accordingly, the mobile apparatus may support resource-efficient context monitoring.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: April 21, 2015
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Junehwa Song, Younghyun Ju, Chulhong Min, Youngki Lee, Jihyun Yu
  • ELECTRONIC DISPERSION COMPENSATION FOR LOW-COST DISTRIBUTED FEEDBACK-DIRECTLY MODULATED LASER
    Publication number: 20150104196
    Abstract: Exemplary embodiments of the present invention relate to electronic dispersion compensation (EDC). The interaction between the frequency chirp and the fiber dispersion is newly analyzed. The linear and nonlinear properties of the chirp-dispersion are separately analyzed. A pre-compensating transmitter may consist of a phase interpolator (PI), a 2 tap data generator, a pulse widening CLK generator, a rising pattern detector, 4:1 Mux and an output driver. A post-compensating receiver may consist of linear equalizer for the rabbit ear compensation, nonlinear equalizer for tilting compensation, typical high frequency boosting equalizer (EQ) and limiting amp (LA).
    Type: Application
    Filed: October 14, 2013
    Publication date: April 16, 2015
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: HyunMin BAE, KyeongHa KWON, JongHyeok YOON
  • METHOD FOR FORMING A FUNCTIONAL PATTERN ON A SUBSTRATE
    Publication number: 20150104567
    Abstract: A method for forming a functional pattern such as an electrode or the like on a substrate is provided. The method includes a) coating a polymer layer on an upper surface of the substrate, b) forming a pattern having an opening in the polymer layer, c) coating a functional fluid on the upper surface of the substrate through the opening of the pattern, d) removing the functional fluid coated on the polymer layer using a scraping process, e) curing the functional fluid through a heat treatment, and f) dissolving and removing the polymer layer using a solvent. The present method is capable of forming a functional pattern having a small line width and a clear shape.
    Type: Application
    Filed: June 13, 2014
    Publication date: April 16, 2015
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Seung Seob LEE, Jin Ha Kim, Hun Kwang Im
  • DISPLAY DEVICE AND DRIVING METHOD THEREOF
    Publication number: 20150103062
    Abstract: A display device according to an embodiment of the present invention includes: a pixel configured to emit light according to a data signal supplied to a data line, a power source voltage supplier configured to supply a power source voltage to the pixel, a driving transistor configured to drive the pixel to be emitted according to the data signal and the power source voltage, and a sensor configured to supply a test signal to a data line and to detect a sensing current flowing to the data line through the driving transistor according to the test signal.
    Type: Application
    Filed: March 18, 2014
    Publication date: April 16, 2015
    Applicants: Korea Advanced Institute of Science and Technology, Samsung Display Co., Ltd.
    Inventors: Oh Jo Kwon, Kyung Youl Min, Choong Sun Shin, Hee Sun Ahn, Hyun Sik Kim, Jun Suk Bang, Gyu Hyeong Cho
  • MOBILE APPARATUS FOR EXECUTING SENSING FLOW FOR MOBILE CONTEXT MONITORING, METHOD OF EXECUTING SENSING FLOW USING THE SAME, METHOD OF CONTEXT MONITORING USING THE SAME AND CONTEXT MONITORING SYSTEM INCLUDING THE SAME
    Publication number: 20150106817
    Abstract: A mobile apparatus includes a sensing handler and a processing handler. The sensing handler includes a plurality of sensing operators. The sensing operator senses data during a sensing time corresponding to a size of C-FRAME and stops sensing during a skip time. The C-FRAME is a sequence of the sensed data to produce a context monitoring result. The processing handler includes a plurality of processing operators. The processing operator executes the sensed data of the sensing operator in a unit of F-FRAME. The F-FRAME is a sequence of the sensed data to execute a feature extraction operation.
    Type: Application
    Filed: November 6, 2013
    Publication date: April 16, 2015
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: June-Hwa SONG, Young-Hyun JU, Chul-Hong MIN, Young-Ki LEE, Ji-Hyun YU, In-Sik SHIN
  • Block copolymer nanostructure formed on surface pattern with shape different from nanostructure of the block copolymer and method for preparation thereof
    Patent number: 9005756
    Abstract: Disclosed are block copolymer nanostructures formed on surface patterns different from nanostructure of the block copolymer and preparation methods thereof.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: April 14, 2015
    Assignee: Advanced Institute of Science and Technology
    Inventors: Sang Ouk Kim, Dong Ok Shin, Bong Hoon Kim
  • Terminal and method for recognizing communication target
    Patent number: 9002401
    Abstract: A terminal and method for recognizing a communication target within a visible range. The method of a terminal to recognize a communication target includes obtaining location information of a communication target whose identification information is unknown within a visible range of a terminal user; and recognizing a relative location of the communication target with respect to the terminal based on the obtained location information and displaying the recognized relative location of the communication target.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: April 7, 2015
    Assignees: Electronics and Telecommunications Research Institute, Korea Advanced Institute of Science and Technology
    Inventors: Joonhyuk Kang, Byung-Jae Kwak, Young-Hoon Kim, Seung-Chan Bang, Eunhye Park
  • MAGNETIC RESONANCE IMAGING DEVICE AND CONTROL METHOD THEREOF
    Publication number: 20150091571
    Abstract: An MRI apparatus performs an MRI while moving a patient table and includes a main magnet configured to generate a static magnetic field in a bore; a gradient coil assembly configured to apply a gradient signal to the static magnetic field to generate a magnetic field gradient; an RF coil assembly configured to apply an RF excitation signal and an RF refocusing signal; and a controller configured to control the RF refocusing signal so that a slice to which the RF refocusing signal is to be applied conforms to the slice to which the RF excitation signal has been applied.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 2, 2015
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea Advanced Institute Of Science and Technology
    Inventors: Hyun Wook PARK, Ye Ji HAN, Jae Moon JO
  • NON-LINEAR GAMMA COMPENSATION CURRENT MODE DIGITAL-ANALOG CONVERTOR AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20150091784
    Abstract: A non-linear gamma compensation current mode digital-analog converter includes: a first digital-analog converter block configured to: receive a digital signal, a first reference voltage, and a gamma adjustment voltage, and provide a reference current to a ground, wherein a first current flowing to a first current output terminal is determined according to the digital signal and the gamma adjustment voltage; and a second digital-analog converter block configured to: receive the digital signal, a second reference voltage, and a ground voltage, and provide the first current to the first digital-analog converter, wherein a second current flowing to a second current output terminal is determined according to the digital signal and the first current.
    Type: Application
    Filed: March 18, 2014
    Publication date: April 2, 2015
    Applicants: Korea Advanced Institute of Science and Technology, Samsung Display Co., Ltd.
    Inventors: Oh Jo Kwon, Kyung Youl Min, Choong Sun Shin, Hee Sun Ahn, Hyun Sik Kim, Jun Suk Bang, Gyu Hyeong Cho
  • APPARATUS FOR SUPPRESSING NOISE IN INJECTION-LOCKED LIGHT SOURCE AND WDM-PON SYSTEM PROVIDED WITH SAME
    Publication number: 20150093114
    Abstract: A WDM-PON system configured to perform an asymmetric wavelength division multiplexing and demultiplexing is proposed. A receiving end of WDM-PON system configured to receive a light transmitted from a transmission end including a first wavelength division multiplexer/demultiplexer includes a second wavelength division multiplexer/demultiplexer configured to demultiplex the light received rom the transmission end, where the second bandwidth of wavelength division multiplexer/demultiplexer is substantially greater than that of the first wavelength division multiplexer/demultiplexer.
    Type: Application
    Filed: January 18, 2012
    Publication date: April 2, 2015
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Chang-Hee Lee, Sang-Rok Mun, Sang-Hwa Yoo, Joon-Young Kim, Myeonggyun Kye, Byungil Seo
  • Motion picture encoding apparatus and method thereof
    Patent number: 8989262
    Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: March 24, 2015
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee University, Korea Advanced Institute of Science and Technology
    Inventors: Sung-Chang Lim, Hahyun Lee, Hui Yong Kim, Se Yoon Jeong, Sukhee Cho, Hae-Chul Choi, Jongho Kim, Jinho Lee, Jin Soo Choi, Jin Woo Hong, Dong-Gyu Sim, Seoung-Jun Oh, Gwang Hoon Park, Mun Churl Kim, Neung-Joo Hwang, Sea-Nae Park
  • Semiconductor photocatalyst coated with graphitic carbon film and method of fabricating the same
    Patent number: 8987164
    Abstract: A semiconductor of which a substance such as a semiconductor photocatalyst is uniformly coated on the surface thereof with a graphitic carbon film and a method of fabricating the same are disclosed. According to the inventive method, a graphitic carbon film having a thickness of 1 nm or less is uniformly formed on the surface of the semiconductor by performing hydrothermal synthesis and pyrolysis on glucose, so as to keep the original structure crystallinity of the semiconductor photocatalyst to be a support of the carbon film.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: March 24, 2015
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jeung-Ku Kang, Dong-Ki Lee, Kyu-Sung Han, Weon-Ho Shin, Jung-Woo Lee, Jung-Hoon Choi, Kyung-Min Choi, Yeob Lee
  • Micropump and driving method thereof
    Patent number: 8979510
    Abstract: A micropump includes: a fluid suction tube for suctioning fluid; a pumping tube connected to the fluid suction tube and providing a suction force and a discharge force to surroundings while repeatedly being expanded and contracted by an external signal; a deform tube connected to the pumping tube and having an aperture that is deformed by the suction force and the discharge force of the pumping tube; and a fluid discharge tube connected to the deform tube and discharging fluid.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: March 17, 2015
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Soo Jai Shin, Hyung Jin Sung
  • Method and apparatus for estimating monte-carlo simulation gamma-ray scattering in positron emission tomography using graphics processing unit
    Patent number: 8983162
    Abstract: A method and apparatus for reconstructing an image by generating a scatter-corrected sinogram are provided. In the reconstructed image in which initial scattering is not corrected, an emission position of a photon is determined. A graphics processing unit (GPU) calculates migration of the photon using a Monte-Carlo simulation. A 3-dimensional (3D) line of response (LoR) may be calculated through a position in which the photon reaches a detector. The calculated LoR may be converted into a 3D sinogram form and stored in a prompt sinogram and a scatter-corrected sinogram. A final scatter-corrected sinogram may be generated by adjusting a scale of the scatter-corrected sinogram.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: March 17, 2015
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jong Chul Ye, Kyung Sang Kim
  • Cognitive radio communication system using multiple input multiple output communication scheme
    Patent number: 8982996
    Abstract: A cognitive radio communication system using a multiple input multiple output (MIMO) communication technology is provided. A cognitive radio base station includes a plurality of antennas, a group setting unit to set at least one sensing terminal group that includes at least one sensing terminal among a plurality of terminals, and a signal generator to generate a transmission signal to transmit the transmission signal using channels formed between the plurality antennas and the plurality of terminals, so that the at least one sensing terminal is accorded a sensing time.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: March 17, 2015
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Hyun Ho Choi, Woongsup Lee, Dong Ho Cho, Ohyun Jo, Ki Song Lee