Patents Assigned to Advanced Institute of Science and Technology
  • Publication number: 20140250438
    Abstract: Provided are a scheduling method in a multiprocessor apparatus and a method of assigning priorities to tasks using pseudo-deadlines in a multiprocessor apparatus. The scheduling method includes releasing tasks (510), setting relative pseudo-deadlines for the tasks such that jobs belonging to one task ?a among the tasks always have higher priorities than jobs belonging to another task ?b, and determining task priorities (520), and setting absolute pseudo-deadlines for jobs belonging to the tasks, and determining job priorities (530).
    Type: Application
    Filed: October 29, 2013
    Publication date: September 4, 2014
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: In-Sik SHIN, Hyeong-Boo Baek, Hoon-sung Shwa
  • Patent number: 8825669
    Abstract: Disclosed is a mobile application search method and system using a human activity knowledge database. The mobile application search system includes a user interface unit that provides an input environment to allow a user to input a user query and displays a mobile application search result related to the user query and a mobile application search engine that receives the user query from the user interface unit and searches for a mobile application related to the user query using an activity knowledge database in which a list of elements involved in achieving a plurality of goals that people desire in daily life is stored. The present invention increases the user's satisfaction by solving a word mismatching problem between a user query and a mobile application and improves mobile application search performance using a human activity knowledge database.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: September 2, 2014
    Assignees: Korea Advanced Institute of Science and Technology, Industry Foundation of Chonnam National University
    Inventors: Sung Hyon Myaeng, Kyung Min Kim, Yu Chul Jung, Keun Chan Park, Jin Hyuk Choi, Chil Woo Lee
  • Patent number: 8826096
    Abstract: Provided are a method of decoding an LDPC code for producing several different decoders using a parity-check matrix of the LDPC code, and an LDPC code system including the same. The system includes: an LDPC encoder outputting an LDPC codeword through a channel; a first LDPC decoder decoding the LDPC codeword received through the channel, and when the decoding has failed in a second LDPC decoder, decoding the LDPC codeword according to original parity check matrix of the LDPC codeword, using soft information newly generated after the decoding is ended in the second LDPC decoder; and the second LDPC decoder, when the decoding has failed in the first LDPC decoder, receiving the soft information on each bit from the first LDPC, and decoding the LDPC codeword according to a new parity-check matrix produced from the parity-check matrix of the LDPC codeword using the received soft information on each bit.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: September 2, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jaekyun Moon, Soonyoung Kang
  • Patent number: 8822970
    Abstract: Provided are a phase-change memory device using insulating nanoparticles, a flexible phase-change memory device and a method for manufacturing the same. The phase-change memory device includes an electrode, and a phase-change layer in which a phase change occurs depending on heat generated from the electrode, wherein insulating nanoparticles formed from a self-assembled block copolymer are provided between the electrode and the phase-change layer undergoing crystallization and amorphization.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: September 2, 2014
    Assignee: Korea Advanced Institute of Science and Technology (KAIST)
    Inventors: Yeon Sik Jung, Keon Jae Lee, Jae Won Jeong, Jae Suk Choi, Geon Tae Hwang, Beom Ho Mun, Byoung Kuk You, Seung Jun Kim
  • Publication number: 20140245323
    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: Application
    Filed: March 20, 2013
    Publication date: August 28, 2014
    Applicant: Korea Advanced Institute of Science and Technology
    Inventor: Korea Advanced Institute of Science and Technology
  • Publication number: 20140242497
    Abstract: The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same. The inventive method involves allowing graphite foil layers to be brought into direct contact with each other when graphite foils are stacked on both sides of a carbon fiber reinforced composite material prepreg, thereby improving electrical conductivity in the thickness direction of the separator.
    Type: Application
    Filed: May 2, 2014
    Publication date: August 28, 2014
    Applicants: Hyndai Motor Company, Korea Advanced Institute of Science and Technology
    Inventors: Dai Gil Lee, Ha Na Yu, Byoung Chul Kim, Bu Gi Kim, Jun Woo Lim, Jung Do Suh
  • Patent number: 8816686
    Abstract: A positron emission tomography (PET)-magnetic resonance imaging (MRI) convergence system. In one aspect, the invention may be a PET-MRI convergence system including: a cylindrical magnet bore which includes an outer wall and an inner wall; a gradient magnet which is disposed adjacent to the inner wall of the magnet bore; a MRI RF coil which is disposed adjacent to the inner wall of the gradient magnet, emits an RF pulse signal and detects MRI data corresponding to the RF pulse signal; and a PET detector which is spaced apart from the MRI RF coil and is disposed adjacent to the inner wall of the gradient magnet, and detects PET data.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: August 26, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: HyunWook Park, MyungSung Song
  • Patent number: 8817561
    Abstract: A method for estimating channel characteristics of a nonvolatile memory device including a plurality of memory cells includes the steps of: calculating first threshold voltage distributions of the memory cells programmed according to input data, based on the input data and a physical structure of the memory cells; calculating second threshold voltage distributions of the memory cells, based on output data and the physical structure of the memory cells; and analyzing the relation between the first and second threshold voltage distributions, using a mask.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: August 26, 2014
    Assignees: SK Hynix Inc., Korea Advanced Institute of Science and Technology
    Inventors: Seok Hwan Choi, Joong Seob Yang, Seung Ho Chang, Sang Sik Kim, Sang Chul Lee, Ho Yeon Lee, Jaekyun Moon, Jaehyeong No
  • Patent number: 8817364
    Abstract: Provided is a device of generating various types of pulses by controlling a distance between saturable absorber connectors, and more particularly, a device of generating various types of pulses by controlling a distance between saturable absorber connectors, capable of actively controlling a distance between saturable absorbers to completely overcome a disadvantage that an opened space is present in a cavity or a disadvantage that a fiber component should be changed and implementing a simple design of the entire fiber laser cavity since only a saturable absorber part, which is a portion of a fiber laser cavity, should be designed, as a carbon nanotube saturable absorber part in a passively mode-locked fiber laser generating apparatus using the saturable absorber.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: August 26, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Soo Hyun Kim, Kyung-Soo Kim, Sung Yoon Ryu, Won Sik Kwon, Hyub Lee, Jin Hwan Kim, Jin Doo Choi, Seung Hwan Jo, Sang Wook Lee, Seung Ryeol Oh
  • Patent number: 8819716
    Abstract: Disclosure relates to an apparatus, system, and method for related recommendation of TV program contents and web contents that enable plentiful information acquisition and effective TV watching by discovering and recommending Internet web contents having a high association with the TV program contents when a TV is watched using a TV terminal connected to the Internet, and to a computer-readable recording medium having a program recorded thereon for executing the method. The apparatus includes: an user profile unit that produces and updates an user profile of a smart TV; a first information collection unit that collects first information that is TV program contents metadata from a smart TV network; a second information collection unit that collects second information that is web contents information from a web; and an integrated content database that stores third integrated information structured with correlation discovered between the first information and the second information.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: August 26, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Munchurl Kim, EunHui Kim, Shinjee Pyo
  • Patent number: 8818200
    Abstract: The present invention discloses a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method. In a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method according to the present invention, only one WDM-PON system can provide services for a plurality of subscribers who is distributed in a wide range of area through multiple starring, by setting one or more band for transmitting up-stream signals as an up-stream basic band and one or more band for transmitting down-stream signals as a down stream basic band, respectively, and by dividing each of the up-stream basic band and the down stream basic band into a plurality of wavelength sub-bands and assigning the divided sub-bands to different areas using a wavelength division multiplexer/de-multiplexer which splits a band into two or more sub-bands.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: August 26, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Chang-Hee Lee, Sang-Mook Lee, Sil-Gu Mun
  • Patent number: 8808860
    Abstract: The present invention relates to a 3-dimensional nanostructure having nanomaterials stacked on a graphene substrate; and more specifically, to a 3-dimensional nanostructure having at least one nanomaterial selected from nanotubes, nanowires, nanorods, nanoneedles and nanoparticles grown on a reduced graphene substrate. The present invention enables the achievement of a synergy effect of the 3-dimensional nanostructure hybridizing 1-dimensional nanomaterials and 2-dimensional graphene. The nanostructure according to the present invention is excellent in flexibility and elasticity, and can easily be transferred to any substrate having a non-planar surface. Also, all junctions in nanomaterials, a metal catalyst and a graphene film system form the ohmic electrical contact, which allows the nanostructure to easily be incorporated into a field-emitting device.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: August 19, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Sang Ouk Kim, Won Jong Lee, Duck Hyun Lee, Tae Hee Han, Ji Eun Kim, Jin Ah Lee, Keon Jae Lee
  • Patent number: 8812675
    Abstract: Provided is a method of a multi-node cooperation considering a delay in a wireless communication system. A frame format may perform scheduling so that uplink cooperation terminals having a similar delay attribute may be classified into an uplink cooperation zone, to thereby prevent interference between the uplink cooperation zone and a non-cooperation zone. An extended cyclic prefix may be applied according to a delay attribute occurring due to an application of the multi-node cooperation. A cooperation base station of an uplink and a downlink may be determined based on the extended cyclic prefix.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: August 19, 2014
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Hyun Ho Choi, Jong Bu Lim, Byoung Hoon Jung, Dan Keun Sung, Seon Yeob Baek, Kab Seok Ko, Ji Young Cha
  • Patent number: 8812577
    Abstract: Disclosed herein is mobile middleware, a context monitoring method, a context-aware system, and a context-aware service provision method, which support energy-efficient context monitoring. The mobile middleware receives a request for a CMQ from context-aware application programs, receives sensor data from sensors, monitors whether the CMQ is satisfied, and transmits an event to the context-aware application programs according to results of the monitoring. In this case, the mobile middleware controls the sensors so that only sensor data required to determine whether the CMQ is satisfied needs to be transmitted so as to reduce energy consumption during the performance of the monitoring. Therefore, the mobile middleware can perform energy-efficient context monitoring, required by the context-aware application programs.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: August 19, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: June-Hwa Song, Seung-Woo Kang, Yong-Joon Son, Hyuk-Jae Jang, Jin-Won Lee, Soun-Eil Park, Hyon-Ik Lee, Tai-Woo Park
  • Patent number: 8802330
    Abstract: The present invention provides a method for manufacturing a composite separator for a fuel cell, which can reduce the electrical contact resistance by performing an additional post-treatment to remove residual resin remaining on the surface of the composite separator by plasma etching. In certain preferred embodiments, the present invention provides a method for manufacturing a composite separator for a fuel cell, in which a liquid phase resin for gasket is applied to the surface of the composite separator along a predetermined gasket pattern, or a semi-cured resin for gasket in the form of a film with a predetermined gasket pattern is stacked on the surface of the composite separator, and then plasma etching is performed to remove the residual resin and, at the same time, cure the resin for gasket, thus reducing the overall processing time to improve the productivity and preventing a composite material of the separator from being damaged.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: August 12, 2014
    Assignees: Hyundai Motor Company, Korea Advanced Institute of Science and Technology
    Inventors: Dai Gil Lee, Ha Na Yu, Byoung Chul Kim, Bu Gi Kim, Jun Woo Lim, Jung Do Suh, Byung Ki Ahn, Sae Hoon Kim
  • Patent number: 8801997
    Abstract: Disclosed is a method of fabricating a flexible device, which includes surface-treating one or both sides of a carrier plate so that regions with different surface-treatments are formed on the same side of the carrier plate, forming a glass-filler reinforced plastic substrate film on the surface-treated carrier plate, forming thin film patterns on the glass-filler reinforced plastic substrate film, and separating the glass-filler reinforced plastic substrate film having the thin film patterns formed thereon from the carrier plate, and in which the surface-treating of the carrier plate enables the glass-filler reinforced plastic substrate film to be easily separated from the carrier plate without an additional process such as using a solvent or a laser release technique.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: August 12, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Byeong-Soo Bae, JungHo Jin
  • Patent number: 8803406
    Abstract: There are provided a flexible nanocomposite generator and a method of manufacturing the same. A flexible nanocomposite generator according to the present invention includes a piezoelectric layer formed of a flexible matrix containing piezoelectric nanoparticles and carbon nanostructures; and electrode layers disposed on the upper and lower surfaces of both sides of the piezoelectric layer, in which according to a method for manufacturing a flexible nanocomposite generator according to the present invention and a flexible nanogenerator, it is possible to manufacture a flexible nanogenerator with a large area and a small thickness. Therefore, the nanogenerator may be used as a portion of a fiber or cloth. Accordingly, the nanogenerator according to the present invention generates power in accordance with bending of attached cloth, such that it is possible to continuously generate power in accordance with movement of a human body.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: August 12, 2014
    Assignee: KAIST (Korea Advanced Institute of Science and Technology)
    Inventors: Keon Jae Lee, Kwi-Il Park, Do Kyung Kim, Sang Ouk Kim, Geon-Tae Hwang
  • Publication number: 20140217829
    Abstract: The present invention relates to a ferrite core structure for a power supply device of an electric vehicle which changes the structure of a ferrite core module according to a related art to improve output and limits a reduction in strength due to warpage in a traveling direction of the vehicle to prevent cracks generated in a surface of an intermediate portion of a power supply road from occurring.
    Type: Application
    Filed: April 13, 2012
    Publication date: August 7, 2014
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Dong Ho Cho, Byung O. Kong, Young Moo Shin, Bo Yune Song, Sung Jun Son, Jae Gue Shin
  • Patent number: 8798478
    Abstract: The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoherent light into a Fabry-Perot laser diode (F-P LD). After injection of narrow-band incoherent light, the output of F-P LD becomes wavelength-selective rather than multi-mode and the output wavelength of F-P LD coincide with the peak wavelength of the injected incoherent light. Multi-channel WDM light sources according to the present invention can be implemented using a single broadband incoherent light source and plurality of F-P LDs. An optical transmission system for upstream signal transmission in an passive optical network using the light source according the present invention is also disclosed.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: August 5, 2014
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Chang Hee Lee, Hyun Deok Kim
  • Patent number: 8792452
    Abstract: A communication method of a serving micro base station is provided. The method includes a handover of a vehicular mobile terminal based on uplink broadcast information including a unique access code allocated to the vehicular mobile terminal within a multi-cell group. The multi-cell group includes a macro base station and a plurality of micro base stations within a cell coverage of the macro base station. The handover is performed based on a determined preparation level of the handover that is based on the uplink broadcast information.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: July 29, 2014
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Tae Soo Kwon, Woo Geun Ahn, Dong Ho Cho, Min Suk Kang