Abstract: A method of improving picture quality in a composite video burst signal includes dividing the composite video burst signal into a plurality of frequency bands using a low pass filter and a high pass filter, performing wavelet packet filtering of frequency bands including a chrominance signal having energy higher than a specified threshold among the plurality of frequency bands, and performing Wiener filtering of frequency bands including a chrominance signal having energy lower than a specified threshold.
Type:
Grant
Filed:
June 11, 2007
Date of Patent:
July 26, 2011
Assignees:
Industry-University Cooperation Foundation Sogang University, Samsung Electronics Co., Ltd.
Inventors:
Sung-hee Kim, Seung-Joon Yang, Rae-hong Park, Ji-won Lee, Hyun-seung Lee, Jun-young Kim, Bo-ra Lim
Abstract: The present invention relates to a high temperature proton-conducting polymer membrane, a preparation method thereof, a membrane-electrode assembly using the same and a fuel cell containing the same. More particularly, it relates to a proton-conducting polymer membrane enabling fuel cell operation under high temperature and normal pressure condition, wherein sulfoalkyl or sulfoaryl groups are introduced between layers of metal phosphate and cation exchange groups are present in side chains, a preparation method thereof and a membrane-electrode assembly using the proton exchange membrane and a fuel cell containing the same.
Type:
Grant
Filed:
November 26, 2003
Date of Patent:
July 12, 2011
Assignee:
Industry-University Cooperation Foundation Sogang University
Inventors:
Hee-Woo Rhee, Min-Kyu Song, Young-Taek Kim, Ki-Hyun Kim
Abstract: A method of assigning radio resources in a cellular system using wired Relay Stations (RSs) includes: a Base Station (BS) gathering feed-back control information of all Mobile Stations (MSs) via the RSs in a cell of the BS; a first process, wherein the MSs are divided into two groups according to a channel state of each MS; a second process, wherein sub-channels are dynamically assigned to MSs belonging to a group, in which a channel state of each MS is good, of the two groups; and a third process, wherein sub-channels are dynamically assigned to MSs belonging to a group, in which a channel state of each MS is bad, of the two groups by considering a resource state per RS and a channel gain between sub-channels.
Type:
Grant
Filed:
September 10, 2007
Date of Patent:
June 28, 2011
Assignees:
Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation Sogang University
Inventors:
Byung-Jik Kim, Seong-Taek Hwang, Won-Jin Sung, Jin-Woo Choe, Jong-Hyun Park, Jong-Hyun Kim
Abstract: An apparatus and a method for selecting one of a plurality of relay modes in a wireless communication system are provided. The method includes checking a channel state between a Mobile Station (MS) and each of at least one Relay Station (RS), selecting the relay mode for supporting a relay service using the determined channel state between the MA and each of the at least one RS, and providing the relay service to the MS using the selected relay mode. Thus, system throughput and outage performance can be enhanced by using the appropriate relay mode based on the MS distribution or the channel condition.
Type:
Grant
Filed:
February 22, 2008
Date of Patent:
May 31, 2011
Assignees:
Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation Sogang University
Inventors:
Eun-Taek Lim, Young-Bin Chang, Il-Hwan Kim, Chung-Gu Kang, Dong-Seek Park, Pan-Yuh Joo, Chang-Yoon Oh
Abstract: A cleaning apparatus in which a cleaning process is simplified, a time required for the cleaning process is reduced and which has an excellent cleaning effect, and a high pressure cleaner for use therein are provided.
Type:
Application
Filed:
July 19, 2010
Publication date:
May 26, 2011
Applicant:
Industry-University Cooperation Foundation Sogang University
Inventors:
Gap Su HAN, Ki Pung YOO, Jong Sung LIM, Young Hoon KWON
Abstract: A joint scheduling apparatus and method for increasing frequency efficiency and fairness in a multi-channel distributed antenna system using frequency reuse and common control power. One of a Base Station (BS) or Relay Station (RS) are selected to transmit packets to a Mobile Station (MSs), taking into account Quality of Service (QoS) in one of a BS and an RS and grouped into packet groups. The packets are selected from the packet groups, links corresponding to the packets are grouped into a link group, a joint power control is performed on the link group, link elimination and link addition are performed for the link group until optimal solutions are achieved for the links group, channels are allocated to the links when the optimal solutions are achieved for the links, and the status of a user queue is updated.
Type:
Grant
Filed:
December 28, 2007
Date of Patent:
April 19, 2011
Assignees:
Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation Sogang University
Abstract: A method and apparatus allocates a Physical Cell Identifier (PCID) in a wireless communication system by considering a PCID reuse factor. An allowable PCID list is acquired from a server. A set of candidate PCIDs is determined from the allowable PCID list according to PCID allocation conditions. A received signal strength of each cell using the determined set of candidate PCID is determined. At least one PCID is selected by using a PCID reuse factor and the received signal strength of each of the cells using the determined set of candidate PCIDs.
Type:
Application
Filed:
October 7, 2010
Publication date:
April 14, 2011
Applicants:
SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-UNIVERSITY COOPERATION FOUNDATION SOGANG UNIVERSITY
Inventors:
Jung-Min So, Hee-Jung Byun, Bong-Jhin Shin, Ga-Hee Lee, Dae-Hyoung Hong, Mi-Sun Do, Hyon-Goo Kang
Abstract: Provided is a correlation apparatus and method for acquiring a robust synchronization. The correlation method may include: calculating a received symbol phase difference with respect to a received symbol; calculating a correlation SoF symbol phase difference with respect to a correlation SoF symbol for a correlation; calculating a differential correlation value of the received symbol using the received symbol phase difference and the correlation SoF symbol phase difference; calculating a Euclidean distance value of the received symbol using the received symbol phase difference; and calculating a sum correlation value of the received symbol using the differential correlation value and the Euclidean distance value.
Type:
Application
Filed:
July 21, 2009
Publication date:
February 24, 2011
Applicants:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION SOGANG UNIVERSITY
Inventors:
Pansoo Kim, Dae Ig Chang, Wonjin Sung, Sangtae Kim, Dong-Uk Lee
Abstract: Disclosed is a method for screening an antioxidant using mutant bacteria and chlorophyllide, and an antioxidant screened by the same method. The method provides for screening of an antioxidant by monitoring growth profiles of specific mutant bacteria in filter discs or medium blocks containing chlorophyllide added thereto, and an antioxidant screened by the same method. By monitoring growth profiles of mutant bacteria using mutant bacteria and chlorophyllide, screening of an antioxidant is possible on an industrial scale. In particular, the antioxidant screening method is useful for selective screening of an amphiphilic antioxidant. Therefore, it is possible to screen and commercialize low-toxic and effective antioxidants used in various food and cosmetic additives, as well as therapeutic medicines.
Type:
Grant
Filed:
January 24, 2008
Date of Patent:
February 22, 2011
Assignees:
Industry-University Cooperation Foundation Sogang University, Kookmin University Industry Academy Cooperation Foundation Kookmin University
Inventors:
Jeong-Kug Lee, Hae-Jin Rhee, Eui-Jin Kim, Moon-Hee Sung
Abstract: Disclosed is an innovative method for detecting metal ions based on selective plasmonic resonance energy transfer between metal-ligand complexes and a single nanoplasmonic particle as a probe. The selective plasmonic resonance energy transfer occurs if a resonance frequency matching condition between the single nanoplasmonic particle and the metal-ligand complexes is satisfied.
Type:
Application
Filed:
July 30, 2009
Publication date:
February 3, 2011
Applicants:
Industry-University Cooperation Foundation Sogang University, University of California, Berkeley
Inventors:
Taewook Kang, Luke P. Lee, Yeonho Choi, Younggeun Park
Abstract: Disclosed herein is a harmonic quadrature demodulation apparatus and method. The harmonic quadrature demodulation apparatus includes an input terminal for externally receiving an input focused signal, a harmonic phase estimation unit for estimating a second-order harmonic phase component from the input focused signal. The second-order harmonic detection unit includes an in-phase component extractor, a quadrature component extratctor, a Hilbert transformer, an adder and a low pass filter. The in-phase component extractor extracts an in-phase component of the input focused signal. The quadrature component extractor extracts a quadrature component of the input focused signal.
Type:
Grant
Filed:
November 6, 2008
Date of Patent:
January 25, 2011
Assignee:
Industry-University Cooperation Foundation Sogang University
Inventors:
Tai-Kyong Song, Sang-Min Kim, Jae-Hee Song
Abstract: The invention provides a multilayered device and the method for fabricating the same. The multilayered device comprises a substrate, a first layer deposited on the substrate, a second layer deposited on the first layer, and a third layer deposited on the second layer. The coverage of the second layer is determined by a rate of crystallization of the third layer. The rate of crystallization of the third layer is determined by measuring X-ray diffraction of the device.
Type:
Application
Filed:
February 20, 2008
Publication date:
January 20, 2011
Applicant:
Industry-University Cooperation Foundation Sogang University
Abstract: A digital photographing apparatus capable of acquiring data about an image having a wide dynamic range and a high grayscale resolution, a method of controlling the digital photographing apparatus, and a recording medium storing a program to implement the method are provided. An embodiment includes an imaging device that acquires a reference image and additional images at different exposures and a multi-level threshold map generation unit that classifies the pixels of the images into levels according to brightness. The embodiment further includes a motion data acquiring unit that acquires motion data for each pixel based on its respective brightness level and a first weight data acquiring unit that acquires first weight data based on the motion data of each pixel. In addition, the embodiment includes a final image data acquiring unit that synthesizes the pixels of the reference image and the additional images based on first weight data.
Type:
Application
Filed:
June 25, 2010
Publication date:
December 30, 2010
Applicants:
Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation Sogang University
Inventors:
Soon-keun Chang, Rae-hong Park, Tae-hong Min
Abstract: The present invention relates to a scanning microscope using an I/Q-interferometer. The scanning microscope includes an I/Q-interferometer which demodulates the phase change and amplitude change induced on the probe beam to provide the I- and Q-signals, an XY scanner, a scanner driver, a precision motion stage controlling the displacement of the sample along the direction parallel to the direction of the probe beam, a motion stage driver, a focusing/collimating device, and a computer. The computer transfers control commends to the scanner driver for scanning the XY scanner, receives I- and Q-signal provided from the I/Q-interferometer, processes the I- and Q-signal to obtain the corresponding phase and amplitude values at each scanning point, calculates error signal for maintaining constant phase during the scanning, and transfers commends to the motion stage driver for the precision motion stage to compensate for phase changes caused by surface morphology during the scanning.
Type:
Application
Filed:
July 2, 2010
Publication date:
November 18, 2010
Applicant:
INDUSTRY-UNIVERSITY COOPERATION FOUNDATION SOGANG UNIVERSITY
Abstract: Disclosed herein is a method for the optimal design of an apodization function used for non-uniform weighted periodic sparse arrays for an ultrasound imaging system. The method includes the steps of (a) setting the interval PT of a transmit sparse array and the number LT of array elements within the interval PT so that common grating lobes are not generated in the beam patterns of the transmit sparse array and a receive sparse array; (b) setting the interval PR of the receive sparse array and the number LR of array elements within the interval PR so that common grating lobes are not generated in the beam patterns of the transmit sparse array and the receive sparse array; (c) setting a transmit apodization function WT(n) configured to be applied to the beam pattern of the transmit sparse array; and (d) setting a receive apodization function WR(n) configured to be applied to the beam pattern of the receive sparse array.
Type:
Grant
Filed:
November 14, 2008
Date of Patent:
November 2, 2010
Assignee:
Industry-University Cooperation Foundation Sogang University
Abstract: The present invention relates to a biomolecule-based electronic device in which the biomolecule with redox potential is directly immobilized on the substrate. The present invention enables to excellently exhibit the capability of a protein-based bio-memory device in which it is preferable to use the substrate on which cysteine-introduced recombinant proteins are effectively immobilized and a self-assembled layer (SAM) is fabricated. It becomes realized that a redox potential is regulated using intrinsic redox potential of the protein dependent on applied voltage. The present invention provides a novel operating method in which three potentials are applied throughout four steps. The present invention has some advantages of fabricating a protein layer in a convenient manner and inducing electron transfer by fundamental electrochemical or electronic operation.
Type:
Application
Filed:
April 17, 2008
Publication date:
October 28, 2010
Applicant:
Industry-University Cooperation Foundation Sogang University
Inventors:
Jeong-Woo Choi, Jun-Hong Min, Byung-Keun Oh, Hyun-Hee Kim, Young-Jun Kim
Abstract: A method of managing a routing table by interoperating with a routing block and a radio resource management (RRM)/scheduling block in a plurality of nodes of a multi-hop system, the method including computing a traffic load rate of each path which transmits traffic and updating the routing table with the computed traffic load rate via the routing block; and updating a plurality of metrics included in the routing table based on the traffic load rate and information transmitted from a neighbor node via the RRM/scheduling block.
Type:
Grant
Filed:
August 2, 2007
Date of Patent:
October 26, 2010
Assignees:
Samsung Electronics Co.,Ltd., Industry-University Cooperation Foundation Sogang University
Inventors:
Yongsuk Park, Jin Woo Choe, Jong Ho Bang, Bong Jhin Shin, Dong Kun Kim, Sung Hyuk Lee, Kil Su Hong
Abstract: An apparatus is operable to control power of a base station in a distributed Multiple Input Multiple Output (MIMO) wireless communication system. At least one beamforming matrix is used for processing transmission signals to terminals included in a terminal set for a multiple access is determined. Minimum power values required for satisfying a minimum transmission rate of the terminals are determined. Whether optimum power values exist is determined using the minimum power values, the beamforming matrix, and a limit transmission power of the base station. When the optimum power values exist, transmission power values for respective terminals are determined in a range meeting the limit transmission power of the base station.
Type:
Application
Filed:
March 23, 2010
Publication date:
October 14, 2010
Applicants:
SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-UNIVERSITY COOPERATION FOUNDATION SOGANG UNIVERSITY
Abstract: The present invention relates to a method for preparing a uniformly aligned zeolite supercrystal, which comprises growing a crystal of a zeolite or zeotype material in a uniformly aligned template, whereby said uniformly aligned zeolite supercrystal is prepared, and a uniformly aligned zeolite supercrystal. The uniformly aligned zeolite supercrystal of this invention would be anticipated to maximize its applicability by overcoming the shortcomings of zeolites with random orientation.
Type:
Grant
Filed:
January 13, 2004
Date of Patent:
October 12, 2010
Assignee:
Industry University Cooperation Foundation Sogang University
Inventors:
Jin-Seok Lee, Yun-Jo Lee, Eunju Lee Tae, Yong Soo Park, Kyung Byung Yoon
Abstract: This invention relates to a sensor for detecting a stem cell differentiation, including (a) an electrode; and (b) a substrate of an alkaline phosphatase. The phosphorylation or dephosphorylation of the substrate for an alkaline phosphatase as a stem cell undifferentiation marker which dephosphorylates its substrate may be measured using an electrical signal in the present sensor. Therefore, the sensor of the present invention enables to electrically detect a stem cell status in a high-throughput manner and to determine the stem cell differentiation.
Type:
Application
Filed:
October 14, 2009
Publication date:
September 30, 2010
Applicant:
Industry-University Cooperation Foundation Sogang University