Patents by Inventor Gyu Sang Choi

Gyu Sang Choi 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).

  • Patent number: 11979227
    Abstract: An operation method of a relay node may include: receiving, from a first communication node, first data composed of n bits; receiving, from a second communication node, second data composed of m bits; in response to determining that n is greater than m, generating first T-data of m bits excluding (n-m) bits from the n-bits of the first data and first R-data of (n-m) bits; generating third data by performing a network coding operation on the first T-data and the second data; transmitting the third data to the first communication node; and transmitting the third data and the first R-data to the second communication node.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: May 7, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jun Hyeong Kim, Gyu Il Kim, Go San Noh, Hee Sang Chung, Dae Soon Cho, Sung Woo Choi, Seung Nam Choi, Jung Pil Choi
  • Publication number: 20240095913
    Abstract: An apparatus for image transformation for transforming a first medical image into a second medical image based on an artificial neural network technology includes a preprocessing module that receives the first medical image and second medical image obtained by photographing the same part of a body using different photographing techniques and performs preprocessing on the first and second medical images, and an artificial neural network module that receives the preprocessed first medical image and second medical image, respectively, and transforms the first medical image into a second medical image.
    Type: Application
    Filed: September 27, 2023
    Publication date: March 21, 2024
    Inventors: Gyu Sang CHOI, Kyeong Min PARK, Min Cheol CHANG
  • Patent number: 11869129
    Abstract: A learning apparatus for image generation includes a preprocessing module configured to receive text for image generation and generate a sentence feature vector and a word feature vector from the received text, a first generative adversarial network (GAN) configured to receive the sentence feature vector from the preprocessing module and generate an initial image based on the received sentence feature vector, and a second generative adversarial network configured to receive the word feature vector generated by the preprocessing module and the initial image generated by the first generative adversarial network and generate a final image based on the word feature vector and the initial image.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: January 9, 2024
    Assignee: RESEARCH COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Gyu Sang Choi, Jong Ho Han, Hyun Kwang Shin
  • Publication number: 20230274479
    Abstract: A learning apparatus for image generation includes a preprocessing module configured to receive text for image generation and generate a sentence feature vector and a word feature vector from the received text, a first generative adversarial network (GAN) configured to receive the sentence feature vector from the preprocessing module and generate an initial image based on the received sentence feature vector, and a second generative adversarial network configured to receive the word feature vector generated by the preprocessing module and the initial image generated by the first generative adversarial network and generate a final image based on the word feature vector and the initial image.
    Type: Application
    Filed: September 29, 2021
    Publication date: August 31, 2023
    Inventors: Gyu Sang CHOI, Jong Ho HAN, Hyun Kwang SHIN
  • Patent number: 11568647
    Abstract: A learning apparatus for creating an emotion expression video according to an embodiment disclosed include first generative adversarial networks (GAN) that receive text for creating an emotion expression video, extract vector information by performing embedding on the input text, and create an image based on the extracted vector information, and second generative adversarial networks that receive an emotion expression image and a frame of comparison video, and create a frame of emotion expression video from the emotion expression image and the frame of comparison video.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 31, 2023
    Assignee: RESEARCH COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Gyu Sang Choi, Jong Ho Han, Hyun Kwang Shin
  • Publication number: 20230005152
    Abstract: An apparatus for image segmentation according to an embodiment includes an acquirer configured to acquire one or more images in which an object is photographed and a segmentation performer configured to perform segmentation on the one or more images using a segmentation model which is deep learned through a plurality of images, in which the segmentation model is a U-Net-based model including a first type module based on depth-wise separable convolution (DSC) and a second type module based on global context network (GCNet).
    Type: Application
    Filed: April 19, 2022
    Publication date: January 5, 2023
    Inventors: Gyu Sang CHOI, Hyun Kwang SHIN
  • Publication number: 20210406554
    Abstract: A learning apparatus for creating an emotion expression video according to an embodiment disclosed include first generative adversarial networks (GAN) that receive text for creating an emotion expression video, extract vector information by performing embedding on the input text, and create an image based on the extracted vector information, and second generative adversarial networks that receive an emotion expression image and a frame of comparison video, and create a frame of emotion expression video from the emotion expression image and the frame of comparison video.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 30, 2021
    Inventors: Gyu Sang CHOI, Jong Ho HAN, Hyun Kwang SHIN
  • Patent number: 11188541
    Abstract: A Join method in a database management system according to an embodiment of the invention comprises: in a memory of a storage medium, which processes data stored within a computer memory, when a new record is added to a bucket of a first table including only a basic key of another table, dividing the bucket in a case where there is no free space in the bucket; and on the basis of a fact that at least one bit of each of the new record and a first record having existed in the bucket before the dividing thereof is different from an upper bit thereof, storing one of the first record and the new record in the divided bucket.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: November 30, 2021
    Assignee: INDUSTRY ACADEMIC COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventor: Gyu Sang Choi
  • Publication number: 20200334010
    Abstract: A method of data alignment according to an embodiment of the present invention is performed by a computing device including one or more processors and a memory in which one or more programs to be executed by the one or more processors are stored, and the method includes counting the number of target data to be aligned, calculating a distribution of the target data, determining the number of bits of a bucket and the number of slots of the bucket for aligning the target data on the basis of the number of target data and the distribution of the target data, and generating buckets corresponding to the determined numbers of bits and slots and allocating the target data to the buckets to align the target data.
    Type: Application
    Filed: April 17, 2020
    Publication date: October 22, 2020
    Inventor: Gyu Sang CHOI
  • Patent number: 10628487
    Abstract: The present disclosure relates to a method for hash collision detection based on the sorting unit of the bucket designed to reduce the future search time by pre-aligning the database in the bucket and to enhance the efficiency in a search within the database. The present disclosure, a method for hash collision detection based on the sorting unit of the bucket using conventional separate chaining method, comprises aligning records in a single bucket of a directory in ascending order or descending order and maintaining the alignment of records in the bucket when new records are added to the directory.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: April 21, 2020
    Assignees: INDUSTRY ACADEMIC COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, KUNSAN NATIONAL UNIVERSITY
    Inventors: Gyu Sang Choi, Byung Won On, In Gyu Lee
  • Patent number: 10565174
    Abstract: A non-volatile memory includes: at least one parent node; and at least one child node that stores a data object and has a variable size of n multiple of the parent node, n being a natural number, when a target child node to insert at least one new data object is fully filled, wherein the data objects of the target child node are split and reinserted into newly created at least one child node.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: February 18, 2020
    Assignee: INDUSTRY ACADEMIC COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Gyu Sang Choi, Byung Won On, Jabarov Elkhan
  • Publication number: 20190391974
    Abstract: A Join method in a database management system according to an embodiment of the invention comprises: in a memory of a storage medium, which processes data stored within a computer memory, when a new record is added to a bucket of a first table including only a basic key of another table, dividing the bucket in a case where there is no free space in the bucket; and on the basis of a fact that at least one bit of each of the new record and a first record having existed in the bucket before the dividing thereof is different from an upper bit thereof, storing one of the first record and the new record in the divided bucket.
    Type: Application
    Filed: October 20, 2017
    Publication date: December 26, 2019
    Inventor: GYU SANG CHOI
  • Publication number: 20190034417
    Abstract: A method for analyzing digital contents is disclosed. According to an embodiment, a plurality of information sources are extracted from digital contents associated with a specific topic, an information source network is created on the basis of the plurality of information sources, and at least one of quantitative and qualitative analyses for the corresponding topic is performed on the basis of the information source network.
    Type: Application
    Filed: January 15, 2018
    Publication date: January 31, 2019
    Inventors: Byung Won On, Gyu Sang Choi, Hyun Kwang Shin
  • Publication number: 20180225312
    Abstract: A non-volatile memory includes: at least one parent node; and at least one child node that stores a data object and has a variable size of n multiple of the parent node, n being a natural number, when a target child node to insert at least one new data object is fully filled, wherein the data objects of the target child node are split and reinserted into newly created at least one child node.
    Type: Application
    Filed: February 8, 2018
    Publication date: August 9, 2018
    Inventors: GYU SANG CHOI, BYUNG WON ON, JABAROV ELKHAN
  • Patent number: 9852061
    Abstract: A memory device may include a non-volatile memory and non-volatile RAM. The non-volatile memory may include a data block and a metadata block. Metadata information with respect to the data block may be included in the metadata block. A portion of metadata with respect to the data block or the metadata with respect to the metadata block may be stored in the non-volatile RAM.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: December 26, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Don Lee, Choong Hun Lee, Gyu Sang Choi, Min Young Son
  • Patent number: 9824033
    Abstract: The present application relates to a heap sorting method based on arrangement and apparatus which can improve the heap sorting conducting speed through reducing access (I/O) frequency of the external memory when conducting heap sorting through storing binary data in the basic access unit of the external memory device in reference to the subtree unit.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: November 21, 2017
    Assignees: INDUSTRY ACADEMIC COOPERATION OF YEUNGNAM UNIVERSITY, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, KUNSAN NATIONAL UNIVERSITY
    Inventors: Gyu Sang Choi, Byung Won On, In Gyu Lee
  • Publication number: 20170161397
    Abstract: The present disclosure relates to a method for hash collision detection based on the sorting unit of the bucket designed to reduce the future search time by pre-aligning the database in the bucket and to enhance the efficiency in a search within the database. The present disclosure, a method for hash collision detection based on the sorting unit of the bucket using conventional separate chaining method, comprises aligning records in a single bucket of a directory in ascending order or descending order and maintaining the alignment of records in the bucket when new records are added to the directory.
    Type: Application
    Filed: November 10, 2016
    Publication date: June 8, 2017
    Inventors: Gyu Sang CHOI, Byung Won ON, In Gyu LEE
  • Publication number: 20160334993
    Abstract: The present application relates to a heap sorting method based on arrangement and apparatus which can improve the heap sorting conducting speed through reducing access (I/O) frequency of the external memory when conducting heap sorting through storing binary data in the basic access unit of the external memory device in reference to the subtree unit.
    Type: Application
    Filed: May 4, 2016
    Publication date: November 17, 2016
    Inventors: Gyu Sang Choi, Byung Won On, In Gyu Lee
  • Patent number: D1025167
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: April 30, 2024
    Inventors: Han Wool Choi, Jun Hwan Park, Seok Young Youn, Hun Keon Ko, Ho Seong Kang, Hyeon Jeong An, Gyu Jong Hwang, Soo Kyoung Kang, Dong Jin Hyun, Geun Sang Yu
  • Patent number: D1025168
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: April 30, 2024
    Inventors: Han Wool Choi, Jun Hwan Park, Seok Young Youn, Hun Keon Ko, Ho Seong Kang, Hyeon Jeong An, Gyu Jong Hwang, Soo Kyoung Kang, Dong Jin Hyun, Geun Sang Yu