Patents by Inventor Yong-sik Kwon

Yong-sik 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).

  • Publication number: 20210099256
    Abstract: A method performed by a first wireless station is described. The method includes determining, by a Media Access Control (MAC) layer of the first wireless station, a plurality of MAC Protocol Data Units (MPDUs) to transmit to a second wireless station in an aggregated MPDU, wherein a physical layer of the first station is to use a plurality of codewords to represent the plurality of MPDUs, wherein a first MPDU in the plurality of MPDUs is to be represented by a first set of codewords and a second MPDU is to be represented by a second set of codewords from the plurality of codewords; appending padding to the first MPDU such that the first set of codewords does not share a codeword with the second set of codewords; and transmitting the first set of codewords and the second set of codewords to the second wireless station.
    Type: Application
    Filed: September 25, 2020
    Publication date: April 1, 2021
    Applicant: NEWRACOM, Inc.
    Inventors: Joonsoo LEE, Yong Jin KWON, Hyun Sik JUNG, Junyoun WON, Hyungu PARK
  • Publication number: 20210086114
    Abstract: A strainer for a fuel pump according to the present invention includes: a communicating pipe including a flow path formed to communicate with a fuel inlet of the fuel pump; a filter including an internal space in which a fuel flows and coupled to the communicating pipe so that the internal space communicates with the communicating pipe; and a rib disposed in the filter and coupled to the communicating pipe, in which the filter includes a first filtering portion extending in a length direction with respect to the communicating pipe, a connecting portion extending in a width direction at an edge of the first filtering portion, and a second filtering portion extending in the length direction at the connecting portion and spaced apart from the first filtering portion in the width direction. Therefore, the strainer may have a relatively large filtering area and a small size.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 25, 2021
    Inventors: Joon Seup KIM, Yong Hwan CHOI, Ku Sung KWON, Jong Hyuk YOON, Jin Kyu CHOI, Jeong Sik KIM, Dong Heon MO
  • Patent number: 10949310
    Abstract: Restoring a database image of a secondary database system comprises initializing the database image from a recovery image that includes metadata logs and non-metadata logs, of which at least one metadata log includes an undo log of non-committed data that is applied to the initialized database image. A first pagelist and first indexes are then rebuilt based on first data segments of the database image and the corresponding metadata objects. The database image is then updated by replaying the metadata redo log generated from the undo log, the metadata logs, and the non-metadata logs. Then, a second pagelist and second indexes for the database system are rebuilt based on second data segments of the database image and the corresponding non-metadata objects, while each of the first data segments is statically separated from the second data segments in physical memory space. Related apparatus, systems, techniques and articles are also described.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: March 16, 2021
    Assignee: SAP SE
    Inventors: Hyeong Seog Kim, Yong Sik Kwon, Seyeong Bae, Ji Hoon Jang, Won Wook Hong
  • Patent number: 10942210
    Abstract: A reflected-wave processing apparatus according to one embodiment of the present invention may comprise: a reference signal generation unit for applying, to a cable, a first reference signal, the frequency of which increases over time, and a second reference signal, the frequency of which decreases over time; a reflected-signal acquisition unit for acquiring a first reflected signal and a second reflected signal which are reflected from the cable upon applying the first and second reference signals thereto; and a signal analysis unit for analyzing the first and second reflected signals.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: March 9, 2021
    Assignee: KOREA ELECTRIC POWER CORPORATION
    Inventors: Song-Ho Sohn, Sang-Cheol Han, Hyung-Suk Yang, Seong-Woo Yim, Yong-June Shin, Geon-Seok Lee, Su-Sik Bang, Yeong-Ho Lee, Gu-Young Kwon
  • Publication number: 20210058631
    Abstract: The disclosure relates a display apparatus comprising: a signal input receiver receives a plurality of signals which are different in kind from each other, a plurality of encoders provided respectively corresponding to the plurality of signals, and perform encoding of a corresponding mode according to the kinds of at least one signal input to the signal input receiver among the plurality of signals, a first interface transmits a signal obtained by serializing the encoded signal, a second interface deserializes the signal received from the first interface, a plurality of decoders provided respectively corresponding to the plurality of encoders, and perform decoding and restoring the deserialized signal into the at least one signal, and a display displays an image based on the at least one restored signal.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 25, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seok-hyun YOON, Yong-sik KWON, Ki-bo KIM, Se-jun KIM
  • Patent number: 10912169
    Abstract: Disclosed is an LED lighting apparatus. The LED lighting apparatus may include a leakage current control unit configured to provide a leakage current path when a rectified voltage is retained at a predetermined voltage or less for a preset time or more, and a leakage current and retention current may be discharged through a leakage current path.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: February 2, 2021
    Assignee: Silicon Works Co., Ltd.
    Inventors: Gyeong Sik Mun, Sang Young Lee, Ki Soo Kwon, Ki Chul An, Yong Geun Kim
  • Publication number: 20200340491
    Abstract: A compression wheel for a turbocharger includes: a wheel hub; and a plurality of blades that are arranged around the wheel hub in a spiral shape, where a round portion is provided at a tip of a leading edge of each of the blades.
    Type: Application
    Filed: November 23, 2019
    Publication date: October 29, 2020
    Inventors: Teock Hyeong Cho, Gue Hyun Jung, Yong Cheol Lee, Young Sik Kim, Dal Heun Shin, O Jun Kwon, Duck Joo Lee, Dong Ho Seo
  • Patent number: 10766352
    Abstract: A power transmission apparatus for a vehicle may include: first, second, and third input shafts disposed coaxially with each other and each selectively connected with a motor/generator; a torque mediating shaft disposed coaxially with the first input shaft; a first intermediate shaft in parallel with the first input shaft; a second intermediate shaft in parallel with the first input shaft, and selectively connected with a transmission housing; a first shifting section including five gear sets, selectively receiving torques through the first and third input shafts, and providing intermediate shift-stages; and a second shifting section including a planetary gear set, forming an output torque by combination of torques from the first shifting section and the second input shaft, and outputting the output torque to the output shaft through one gear set.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: September 8, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Juhyeon Park, Yong Uk Shin, Seongwook Ji, Wonmin Cho, Hyun Sik Kwon, Ilhan Yoo, Seong Wook Hwang, Ki Tae Kim
  • Publication number: 20200231749
    Abstract: The present invention relates to a polyethylene glycol derivative and a preparation method thereof. A preparation process of a polyethylene glycol derivative, according to the present invention, may provide a novel polyethylene glycol derivative which can be utilized in various ways as a drug linker, and is appropriate and effective for mass production and is advantageous in reproducible mass production of high-quality products.
    Type: Application
    Filed: November 6, 2018
    Publication date: July 23, 2020
    Applicant: Hanmi Fine Chemical Co., Ltd.
    Inventors: Yong Gyu Jung, Bo Sung Kwon, Seung Hwan Kwak, Eun Rang Park, Kyung Do Kim, Hyun Sik Yun, Hyung Woo Lee, Young Bum Cho
  • Patent number: 10704652
    Abstract: A power transmission apparatus configured for a vehicle may include a first input shaft fixedly connected to a motor/generator, a second input shaft selectively connectable to the first input shaft, a third input shaft selectively connectable to the first input shaft, a torque mediating shaft externally disposed with the first input shaft, an intermediate shaft, an idle shaft, an output shaft, a first shifting section selectively receiving a torque from the third input shaft, shifting the received torque and outputting the shifted torque, a second shifting section shifting a torque from the first input shaft to the torque mediating shaft, or stopping a rotation of the torque mediating shaft, and a third shifting section selectively receiving a torques from the first and second shifting sections and a torque from the second input and outputting shifted torque to the output shaft.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: July 7, 2020
    Assignees: Hyndai Motor Company, Kia Motors Corporation
    Inventors: Cheol Ho Jang, Ki Dong Kim, Seong Wook Hwang, Kijong Park, Yong Uk Shin, Seongwook Ji, Ki Tae Kim, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, Ilhan Yoo, Juhyeon Park, Minho Chae, Dongwoo Kim, Hye Jin Lim, Soonki Eo, Yong Sug Choi, Sun Sung Kwon
  • Patent number: 10697538
    Abstract: A torque converter system of a vehicle for delivering an input torque to a transmission may include a front cover of a torque converter receiving the input torque through a torque receiving shaft, an impeller of the torque converter receiving the input torque through the front cover, a turbine of the torque converter disposed opposed to and coaxially with the impeller and rotated by an operation fluid supplied from the impeller thereby driving a transmission input shaft, a reactor of the torque converter disposed between the impeller and the turbine and redirecting the operation fluid from the turbine toward the impeller, and a lock-up clutch disposed inside a transmission to selectively connecting the front cover and the turbine.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: June 30, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Uk Shin, Seong Wook Hwang, Minho Chae, Chon Ok Kim, Hyun Sik Kwon, Sun Sung Kwon, Seongwook Ji
  • Patent number: 10671586
    Abstract: A system and method, including determining, by a processor, distinction bit positions for index keys of a database index; determining, by the processor, concatenation of the bits of the index keys; and generating a record of the concatenation. Other systems and methods include collecting, by a processor, index keys of a database index in parallel, wherein data pages of a target table are evenly distributed to a plurality of processor cores; scanning, by each of the cores the data pages to extract compressed keys and corresponding record identifiers; sorting, by a plurality of the processor cores, pairs of the compressed key and corresponding record identifier in accordance with a parallel sorting algorithm; generating an index tree in a bottom-up fashion; and storing a record of the generated index tree.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: June 2, 2020
    Assignee: SAP SE
    Inventors: Yong Sik Kwon, Kunsoo Park, Cheol Yoo
  • Patent number: 10668797
    Abstract: A power transmission apparatus for a vehicle may include a first input shaft directly connected with a motor/generator, second and third input shafts and torque mediating shaft coaxial and selectively connected with the first input shaft, a first intermediate shaft and first and second idle shafts in parallel with the first input shaft, a second intermediate shaft in parallel with the first input shaft, and selectively connected with a transmission housing, an output shaft in parallel with the first input shaft, and coaxial and selectively connected with the second intermediate shaft, a first shifting section including six gear sets, selectively receiving torque through the first and third input shafts, and outputting intermediate shift-stages, and a second shifting section including a planetary gear set, forming an output torque by combination torques from the first shifting section and the second input shaft, and outputting the output torque to the output shaft.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: June 2, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Minho Chae, Woochurl Son, Sun Sung Kwon, Seong Wook Hwang, Kijong Park, Yong Uk Shin, Seongwook Ji, Ki Tae Kim, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, Ilhan Yoo, Juhyeon Park, Cheol Ho Jang, Dongwoo Kim, Hye Jin Lim, Soonki Eo, Ki Dong Kim, Woo Jin Chang, Yong Sug Choi, Young Chan Gweon
  • Publication number: 20200165662
    Abstract: The present invention relates to a technique for synthesizing DNA sequences in high purity at low cost. More specifically, the present invention relates to a method and apparatus for capturing high-purity nucleotides that is suitable for use in the field of genome/gene synthesis.
    Type: Application
    Filed: May 14, 2018
    Publication date: May 28, 2020
    Applicant: Seoul National University R&DB Foundation
    Inventors: Sung Hoon KWON, Sung Sik KIM, Hui Ran YEOM, Yong Hee LEE
  • Publication number: 20200166469
    Abstract: A method of manufacturing a graphene-tin oxide nanocomposite comprises dispersing graphene and tin oxide in an organic solvent to prepare a dispersion solution, drying the dispersion solution to obtain a powdery mixture, and irradiating the mixture with microwaves to obtain a graphene-tin oxide nanocomposite. Irradiation of graphene and tin oxide with microwaves results in the simplification of the manufacturing process of graphene-tin oxide nanocomposites and a decrease in manufacturing time and cost, and produce graphene-tin oxide nanocomposites at low temperatures. Further, the graphene-tin oxide nanocomposite with improved sensitivity to NO2 gas may be produced.
    Type: Application
    Filed: May 17, 2018
    Publication date: May 28, 2020
    Applicants: LG Display Co., Ltd., Industry-University Cooperation Foundation Hanyang University
    Inventors: Sung Pil RYU, Ki Seok CHANG, Wook Sung KIM, Han Saem KANG, Hyoun Woo KIM, Yong Jung KWON, Myong Sik CHOI, Sung Yong KANG, Jae Hoon BANG
  • Patent number: 10664497
    Abstract: A hybrid database table is stored as both a row and a column store. One or more techniques may be employed alone or in combination to enhance performance of the hybrid table by regulating access to, and/or the size of, the processing-intensive column store data. For example during an insert operation, the column store data may be searched for a uniqueness violation only after certain filtering and/or boundary conditions have been considered. In another technique, a hybrid table manager may control movement of data to the column store based upon considerations such as frequency of access, or underlying business logic. In still another technique, querying of the hybrid table may result in a search of the column store data only after an initial search of row store data fails to return a result.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: May 26, 2020
    Assignee: SAP SE
    Inventors: Yongsik Yoon, Chanho Jeong, Juchang Lee, Chang Bin Song, Yong Sik Kwon, Sang Kyun Cha
  • Patent number: 10661919
    Abstract: A docking simulator according to an exemplary embodiment of the present disclosure is a docking simulator capable of mimicking docking between two flight vehicles in a zero gravity environment, the docking simulator including: a passive module which is disposed at a preset position; and an active module which performs docking with the passive module by approaching the passive module while performing a translational motion. According to the present disclosure, the docking simulator capable of performing, on the ground, a logic verification test for rendezvous docking between the two flight vehicles in the space in the zero gravity environment is implemented, and as a result, it is possible to perform more various logic verification tests for rendezvous docking by mimicking the rendezvous docking by using actual objects.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 26, 2020
    Assignee: Korea Aerospace Research Institute
    Inventors: Jae Wook Kwon, Yong Sik Chun, Il Young Kim, Dong Young Rew, Gi Hyuk Choi
  • Publication number: 20200063861
    Abstract: A torque converter system of a vehicle for delivering an input torque to a transmission may include a front cover of a torque converter receiving the input torque through a torque receiving shaft, an impeller of the torque converter receiving the input torque through the front cover, a turbine of the torque converter disposed opposed to and coaxially with the impeller and rotated by an operation fluid supplied from the impeller thereby driving a transmission input shaft, a reactor of the torque converter disposed between the impeller and the turbine and redirecting the operation fluid from the turbine toward the impeller, and a lock-up clutch disposed inside a transmission to selectively connecting the front cover and the turbine.
    Type: Application
    Filed: October 17, 2018
    Publication date: February 27, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Uk SHIN, Seong Wook HWANG, Minho CHAE, Chon Ok KIM, Hyun Sik KWON, Sun Sung KWON, Seongwook JI
  • Publication number: 20200063829
    Abstract: A power transmission apparatus for a vehicle may include a first input shaft directly connected to a motor/generator, a second and third input shafts coaxial and selectively connectable to the first input shaft, a torque mediating shaft coaxial with the first input shaft, an intermediate shaft and output shaft disposed in parallel with the first input shaft, a first shifting section receiving torque from the third input shaft and outputting a modified torque to the torque mediating shaft, a second shifting section including first planetary gear set, shifting torque of the first input shaft to output the shifted torque to the torque mediating shaft, and selectively stopping the torque mediating shaft, and a third shifting section including second planetary gear set, forming an output torque in combination of torques from the first and second shifting sections and the second input shaft, and outputting the output torque to the output shaft.
    Type: Application
    Filed: November 26, 2018
    Publication date: February 27, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Cheol Ho Jang, Woochurl Son, Sun Sung Kwon, Seong Wook Hwang, Kijong Park, Yong Uk Shin, Seongwook Ji, Ki Tae Kim, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, llhan Yoo, Juhyeon Park, Minho Chae, Dongwoo Kim, Hye Jin Lim, Soonki Eo, Ki Dong Kim, Woo Jin Chang, Yong Sug Choi, Young Chan Gweon
  • Publication number: 20200063830
    Abstract: A power transmission apparatus configured for a vehicle may include a first input shaft fixedly connected to a motor/generator, a second input shaft selectively connectable to the first input shaft, a third input shaft selectively connectable to the first input shaft, a torque mediating shaft externally disposed with the first input shaft, an intermediate shaft, an idle shaft, an output shaft, a first shifting section selectively receiving a torque from the third input shaft, shifting the received torque and outputting the shifted torque, a second shifting section shifting a torque from the first input shaft to the torque mediating shaft, or stopping a rotation of the torque mediating shaft, and a third shifting section selectively receiving a torques from the first and second shifting sections and a torque from the second input and outputting shifted torque to the output shaft.
    Type: Application
    Filed: November 28, 2018
    Publication date: February 27, 2020
    Applicants: Hyndai Motor Company, Kia Motors Corporation
    Inventors: Cheol Ho JANG, Ki Dong KIM, Seong Wook HWANG, Kijong PARK, Yong Uk SHIN, Seongwook JI, Ki Tae KIM, Chon Ok KIM, Wonmin CHO, Hyun Sik KWON, IIhan YOO, Juhyeon PARK, Minho CHAE, Dongwoo KIM, Hye Jin LIM, Soonki EO, Yong Sug CHOI, Sun Sung KWON