Patents by Inventor Cheol Kwon

Cheol Kwon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • NUCLEAR FUEL ASSEMBLY TOP NOZZLE HAVING IN-CORE INSTRUMENT INSERTION STRUCTURE USING UPPER CORE PLATE GUIDE PIN
    Publication number: 20170229198
    Abstract: The present invention relates to a top nozzle and a nuclear reactor in which an in-core instrument, which is supposed to be inserted through a top head of a nuclear reactor, is inserted through a guide pin for an upper core plate. In a nuclear reactor including guide pins for aligning a top nozzle for a nuclear fuel assembly with an upper core plate of a nuclear reactor, a guide hole (210) is axially formed through the guide pins (200) and in-core instruments (10) are inserted through the guide holes (210).
    Type: Application
    Filed: October 22, 2015
    Publication date: August 10, 2017
    Applicant: KEPCO NUCLEAR FUEL CO., LTD.
    Inventors: Seong Soo KIM, Jae Ik KIM, Sang Youn JEON, Kyong Bo EOM, Dong Geun HA, Jin Sun KIM, Joo Young RYU, O Cheol KWON, Su Pil RYU, Hak In LEE, Joo Hong CHUN, Ba Leum KIM
  • Method and apparatus for encoding image, and method and apparatus for decoding image
    Patent number: 9729893
    Abstract: The present invention discloses a method and an apparatus for encoding and decoding video. A video decoding method comprises reconstructing a residual value by entropy-decoding received bitstream and dequantizing and inverse-transforming residual value information, generating a final prediction unit by performing inter prediction on a prediction unit which is partitioned from a coding unit into at least two prediction units by asymmetric motion partitioning (AMP), the two partitioned prediction units comprising a first partitioned prediction unit and a second partitioned prediction unit, and reconstructing a picture by adding the final prediction unit to the residual values.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: August 8, 2017
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Jae Cheol Kwon, Joo Young Kim
  • METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE
    Publication number: 20170223380
    Abstract: A method for decoding an image, according to the present invention, comprises the steps of: receiving image information that corresponds to a block to be decoded; performing entropy-decoding with respect to the image information that is received; deciding a transform skip mode of the block to be decoded from a plurality of transform skip mode candidates, based on the image information that is entropy-decoded; and reverse-transforming the block to be decoded based on the transform skip mode that is decided.
    Type: Application
    Filed: April 18, 2017
    Publication date: August 3, 2017
    Applicant: KT CORPORATION
    Inventors: Bae Keun LEE, Jae Cheol KWON, Joo Young KIM
  • Method and apparatus for encoding/decoding image
    Patent number: 9661346
    Abstract: A method for decoding an image, according to the present invention, comprises the steps of: receiving image information that corresponds to a block to be decoded; performing entropy-decoding with respect to the image information that is received; deciding a transform skip mode of the block to be decoded from a plurality of transform skip mode candidates, based on the image information that is entropy-decoded; and reverse-transforming the block to be decoded based on the transform skip mode that is decided.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: May 23, 2017
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Jae Cheol Kwon, Joo Young Kim
  • Method and apparatus for encoding/decoding image
    Patent number: 9661352
    Abstract: A method for decoding an image, according to the present invention, comprises the steps of: receiving image information that corresponds to a block to be decoded; performing entropy-decoding with respect to the image information that is received; deciding a transform skip mode of the block to be decoded from a plurality of transform skip mode candidates, based on the image information that is entropy-decoded; and reverse-transforming the block to be decoded based on the transform skip mode that is decided.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: May 23, 2017
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Jae Cheol Kwon, Joo Young Kim
  • Apparatus and method for synchronizing clocks between devices of magnetic resonance imaging (MRI) system
    Patent number: 9658302
    Abstract: A method of synchronizing clocks between a central controlling unit and a radio frequency (RF) coil which are wirelessly connected to each other in a magnetic resonance imaging (MRI) system, which includes receiving a first clock from the central controlling unit, synchronizing a second clock of the RF coil with a received first clock, and discontinuing the receiving of the first clock from the central controlling unit when the second clock is synchronized with the first clock.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: May 23, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-cheol Kwon, Hyug-rae Cho
  • Method and apparatus for encoding/decoding image
    Patent number: 9661354
    Abstract: A method for decoding an image, according to the present invention, comprises the steps of: receiving image information that corresponds to a block to be decoded; performing entropy-decoding with respect to the image information that is received; deciding a transform skip mode of the block to be decoded from a plurality of transform skip mode candidates, based on the image information that is entropy-decoded; and reverse-transforming the block to be decoded based on the transform skip mode that is decided.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: May 23, 2017
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Jae Cheol Kwon, Joo Young Kim
  • Compound, preparing method thereof, and use thereof as inhibitors of histone demethylase
    Patent number: 9650325
    Abstract: Provided are a novel compound, preparing method thereof, and use thereof as inhibitor of histone demethylase. The compound represented by Chemical Formula 1 has activity which inhibits histone demethylase and thus is capable of specifically and effectively inhibit activity of histone demethylase.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: May 16, 2017
    Assignees: SNU R&DB FOUNDATION, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong-Chan Oh, Seong-Hwan Kim, Jongheon Shin, Hak Cheol Kwon, So Hee Kwon
  • Method for preparation of justicidin a derivatives of arylnaphthalene lignan structure
    Patent number: 9650355
    Abstract: The present disclosure relates to a novel method for preparing an arylnaphthalene lignan compound. In synthesis of arylnaphthalene lignan compounds and derivatives according to the present disclosure, a naphthalene backbone may be constructed first and an aryl group may be introduced at the final stage. Through this, various kinds of derivatives that could not be prepared from the existing methods can be synthesized effectively. Further, the synthesis method according to the present disclosure is appropriate for large-scale production.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: May 16, 2017
    Assignee: Korea Institute of Science and Technology
    Inventors: Jungyeob Ham, Tae Jung Kim, Hak Cheol Kwon, Kyu Hyuk Jeong, Jungho Song, Bong Chul Chung
  • Method and apparatus for coefficient scan based on partition mode of prediction unit
    Patent number: 9648331
    Abstract: Provided are a method and an apparatus for coefficient scan on the base of a partition mode of a prediction unit. The method comprises the steps of: determining a scan method on the basis of a partition mode of a prediction unit; and encoding the information about the scan method, wherein the scan method is determined, on the basis of RDO (Rate Distortion optimization), from among the extracted candidate scan methods which have been extracted with consideration of the shapes of the partitions of the partition mode.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: May 9, 2017
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Jae Cheol Kwon, Joo Young Kim
  • METHOD AND APPARATUS FOR ENCODING IMAGE, AND METHOD AND APPARATUS FOR DECODING IMAGE
    Publication number: 20170111647
    Abstract: The present invention discloses a method and an apparatus for encoding and decoding video. A video decoding method comprises reconstructing a residual value by entropy-decoding received bitstream and dequantizing and inverse-transforming residual value information, generating a final prediction unit by performing inter prediction on a prediction unit which is partitioned from a coding unit into at least two prediction units by asymmetric motion partitioning (AMP), the two partitioned prediction units comprising a first partitioned prediction unit and a second partitioned prediction unit, and reconstructing a picture by adding the final prediction unit to the residual values.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Applicant: KT CORPORATION
    Inventors: Bae Keun LEE, Jae Cheol KWON, Joo Young KIM
  • METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE
    Publication number: 20170099504
    Abstract: A method for decoding an image, according to the present invention, comprises the steps of: receiving image information that corresponds to a block to be decoded; performing entropy-decoding with respect to the image information that is received; deciding a transform skip mode of the block to be decoded from a plurality of transform skip mode candidates, based on the image information that is entropy-decoded; and reverse-transforming the block to be decoded based on the transform skip mode that is decided.
    Type: Application
    Filed: December 15, 2016
    Publication date: April 6, 2017
    Applicant: KT CORPORATION
    Inventors: Bae Keun LEE, Jae Cheol KWON, Joo Young KIM
  • METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE
    Publication number: 20170099503
    Abstract: A method for decoding an image, according to the present invention, comprises the steps of: receiving image information that corresponds to a block to be decoded; performing entropy-decoding with respect to the image information that is received; deciding a transform skip mode of the block to be decoded from a plurality of transform skip mode candidates, based on the image information that is entropy-decoded; and reverse-transforming the block to be decoded based on the transform skip mode that is decided.
    Type: Application
    Filed: December 15, 2016
    Publication date: April 6, 2017
    Applicant: KT CORPORATION
    Inventors: Bae Keun LEE, Jae Cheol KWON, Joo Young KIM
  • METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE
    Publication number: 20170099502
    Abstract: A method for decoding an image, according to the present invention, comprises the steps of: receiving image information that corresponds to a block to be decoded; performing entropy-decoding with respect to the image information that is received; deciding a transform skip mode of the block to be decoded from a plurality of transform skip mode candidates, based on the image information that is entropy-decoded; and reverse-transforming the block to be decoded based on the transform skip mode that is decided.
    Type: Application
    Filed: December 15, 2016
    Publication date: April 6, 2017
    Applicant: KT CORPORATION
    Inventors: Bae Keun LEE, Jae Cheol KWON, Joo Young KIM
  • METHOD FOR INDUCING A MERGE CANDIDATE BLOCK AND DEVICE USING SAME
    Publication number: 20170094309
    Abstract: The present invention relates to a method for inducing a merge candidate block and a device using same. An image decoding method involves decoding motion estimation region (MER) related information; determining whether or not a predicted target block and a spatial merge candidate block are included in the same MER; and determining the spatial merge candidate block to be an unavailable merge candidate block when the predicted target block and the spatial merge candidate block are included in the same MER. Accordingly, by parallely performing the method for inducing a merge candidate, parallel processing is enabled and the computation amount and implementation complexity are reduced.
    Type: Application
    Filed: December 14, 2016
    Publication date: March 30, 2017
    Applicant: KT CORPORATION
    Inventors: Bae Keun LEE, Jae Cheol KWON, Joo Young KIM
  • METHOD FOR PROTECTING NEURONAL CELLS COMPRISING ADMINISTERING AN EFFECTIVE AMOUNT OF A CENTIPEDA MINIMA EXTRACT
    Publication number: 20170056461
    Abstract: The present disclosure relates to a composition which comprises Centipede minima as an active ingredient. The composition of the present disclosure exhibits an effect of protecting neuronal cells from oxidative stress and inhibiting apoptosis of neuronal cells. In addition, the composition can increase expression of antioxidant enzymes which inhibit cellular apoptosis caused by increased oxidative stress in cells. Accordingly, the composition of the present disclosure can exhibit an effect of preventing, improving or treating secondary diseases that may be caused by apoptosis of neuronal cells due to oxidative stress and can be used as a pharmaceutical or food composition.
    Type: Application
    Filed: August 22, 2016
    Publication date: March 2, 2017
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae Wook LEE, Ju Young LEE, Jin Soo PARK, Jin Wook CHA, Hak Cheol KWON, Su-Nam KIM, Byung Hun UM
  • RECOMMENDER SYSTEM AND OPERATION METHOD THEREOF
    Publication number: 20170061460
    Abstract: Disclosed are a recommender system and an operation method thereof, the operation method comprising the steps of: reading an identification code included in access information provided by a recommender when a recommendee accesses a recommendation site using the access information; collecting activity information on a situation in which the recommendee acts in the recommendation site; and matching the identification code with the activity information and storing the matched code and information in a database.
    Type: Application
    Filed: October 27, 2014
    Publication date: March 2, 2017
    Applicant: BRIDGE LAB CO., LTD.
    Inventor: O Cheol KWON
  • Method and apparatus for intra prediction within display screen
    Patent number: 9584815
    Abstract: The present invention relates to a method and apparatus for intra prediction. The intra prediction method for a decoder, according to the present invention, comprises the steps of entropy-decoding a received bitstream, generating reference pixels to be used in the intra prediction of a prediction unit; generating a prediction block from the reference pixels on the basis of a prediction mode for the prediction unit and reconstructing an image from the prediction block and a residual block, which is obtained as a result of entropy encoding, wherein the reference pixels and/or the prediction block pixels are predicted on the basis of a base pixel, and the predicted pixel value can be the sum of the pixel value of the base pixel and the difference between the pixel values of the base pixel and the generated pixel.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: February 28, 2017
    Assignee: KT CORPORATION
    Inventors: Jae Cheol Kwon, Joo Young Kim
  • Method and apparatus for encoding image, and method and apparatus for decoding image
    Patent number: 9578338
    Abstract: The present invention discloses a method and an apparatus for encoding and decoding video. A video decoding method comprises reconstructing a residual value by entropy-decoding received bitstream and dequantizing and inverse-transforming residual value information, generating a final prediction unit by performing inter prediction on a prediction unit which is partitioned from a coding unit into at least two prediction units by asymmetric motion partitioning (AMP), the two partitioned prediction units comprising a first partitioned prediction unit and a second partitioned prediction unit, and reconstructing a picture by adding the final prediction unit to the residual values.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: February 21, 2017
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Jae Cheol Kwon, Joo Young Kim
  • Method for inducing a merge candidate block and device using same
    Patent number: 9578348
    Abstract: The present invention relates to a method for inducing a merge candidate block and a device using same. An image decoding method involves decoding motion estimation region (MER) related information; determining whether or not a predicted target block and a spatial merge candidate block are included in the same MER; and determining the spatial merge candidate block to be an unavailable merge candidate block when the predicted target block and the spatial merge candidate block are included in the same MER. Accordingly, by parallely performing the method for inducing a merge candidate, parallel processing is enabled and the computation amount and implementation complexity are reduced.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: February 21, 2017
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Jae Cheol Kwon, Joo Young Kim