Patents by Inventor Yong Cheol Park

Yong Cheol Park 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: 11546128
    Abstract: Interface devices and systems that include interface devices are disclosed. In some implementations, a device includes a transceiver configured to transmit and receive data, a lane margining controller in communication with the transceiver and configured to control the transceiver to transmit, through a margin command, to an external device, a request for requesting a state of an elastic buffer of the external device, and control the transceiver to receive the state of the elastic buffer of from the external device, and a port setting controller adjust a clock frequency range of a spread spectrum clocking scheme based on the state of the elastic buffer.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: January 3, 2023
    Assignee: SK hynix Inc.
    Inventors: Yong Tae Jeon, Dae Sik Park, Jae Young Jang, Byung Cheol Kang, Seung Duk Cho
  • Publication number: 20220380668
    Abstract: An etchant composition includes: an inorganic acid compound at 9.0 wt % to 9.9 wt %; an inorganic salt compound at 5.0 wt % to 10.0 wt %; an organic acid compound at 35 wt % to 45 wt %; a lactate-based compound at 10 wt % to 20 wt %; a nitrogen cyclic compound containing oxygen at 0.1 wt % to 1.0 wt %; and a remaining amount of water such that a total weight of the etchant composition is 100 wt %, wherein the inorganic acid compound is an etchant composition having an acid dissociation constant (pKa) value of ?1.0 to ?3.0.
    Type: Application
    Filed: May 26, 2022
    Publication date: December 1, 2022
    Inventors: Jong Hee PARK, Hyoung Sik KIM, Sang Hyuk LEE, Yong Hoe KIM, Young Kwang KIM, Dong Ho KANG, Hyun-Cheol SHIN, Sung-Tae KIM, Dong Hun LEE, Min Hye LEE, Byung Su LEE, Ki Su JUNG
  • Patent number: 11489021
    Abstract: A color conversion substrate includes a base including a first light transmitting region and a light shielding region around the first light transmitting region; a first color filter on the base in the first light transmitting region; a first wavelength conversion pattern in a first microcavity on the first color filter including a first wavelength shifter; and a light shielding member on the base and in the light shielding region. The first microcavity includes an open side, and the light shielding member directly contacts the first wavelength conversion pattern at the open side of the first microcavity.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: November 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon Hyeung Cho, Yo Han Kim, Byoung Duk Lee, Yong Tack Kim, Jong Jin Park, Yun Ah Chung, Young Cheol Joo
  • Publication number: 20220338251
    Abstract: A method for sharing a multilink in a next-generation wireless LAN is disclosed. An operation method of a first communication node comprises the steps of: setting a transmission interval; communicating with a second communication node by using a first link and a second link in the transmission interval; sharing the transmission interval with a third communication node; and communicating with the second communication node by using the first link in the transmission interval.
    Type: Application
    Filed: September 16, 2020
    Publication date: October 20, 2022
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Sung Hyun HWANG, Kyu Min KANG, Jae Cheol PARK, Jin Hyung OH, Su Na CHOI, Yong Ho KIM, Yong Su GWAK
  • Patent number: 11475835
    Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor that controls an amount of current received from a first power supply voltage line connected via a second node to an organic light emitting diode in response to a voltage of a first node, a second transistor connected between a data line and the second node and that includes a first gate electrode connected to a first scan line, a light emitting line connected to a gate electrode of at least one light emitting transistor located in a current path between the first power supply voltage line and the organic light emitting diode, and a seventh transistor connected between one of at least one second gate electrode of the second transistor and the light emitting line. Accordingly, a threshold voltage of a switching transistor included in each of the plurality of pixels may be negatively shifted.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: October 18, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyo Jung Kim, Tae Young Kim, Yong Sung Park, Jong Woo Park, Mi Seon Seo, Keun Soo Lee, Ki Ju Im, Dae Youn Cho, Young Tae Choi, Hyun Cheol Hwang
  • Publication number: 20220322473
    Abstract: The present invention relates to a method for operating a first communication node in a wireless local area network (WLAN) supporting a multi-link operation, comprising the steps of: setting a first transmit window size of a first link for transmitting a plurality of frames to a second communication node; transmitting the plurality of frames through the first link; when the state of a channel detected through channel sensing in the second link is an idle state, setting a transmit opportunity (TXOP) in the channel; and when the transmit opportunity is set, performing an agreement with the second communication node on the size of a second transmit window for transmitting the plurality of frames. Therefore, it is possible to improve the performance of a communication system.
    Type: Application
    Filed: July 10, 2020
    Publication date: October 6, 2022
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC CORPORATION FOUNDATION
    Inventors: Sung Hyun HWANG, Kyu Min KANG, Jae Cheol PARK, Jin Hyung OH, Su Na CHOI, Yong Ho KIM, Yong Su GWAK
  • Publication number: 20220311590
    Abstract: Interface devices and systems that include interface devices are disclosed. In some implementations, a device includes a transceiver configured to transmit and receive data, a lane margining controller in communication with the transceiver and configured to control the transceiver to transmit, through a margin command, to an external device, a request for requesting a state of an elastic buffer of the external device, and control the transceiver to receive the state of the elastic buffer of from the external device, and a port setting controller adjust a clock frequency range of a spread spectrum clocking scheme based on the state of the elastic buffer.
    Type: Application
    Filed: June 14, 2022
    Publication date: September 29, 2022
    Inventors: Yong Tae JEON, Dae Sik PARK, Jae Young JANG, Byung Cheol KANG, Seung Duk CHO
  • Patent number: 11456422
    Abstract: The present disclosure relates to a novel compound having excellent hole injection capabilities and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which includes the compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and a service life.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: September 27, 2022
    Assignee: SOLUS ADVANCED MATERIALS CO., LTD.
    Inventors: Tae Hyung Kim, In Hyuk Lee, Yong Hwan Lee, Jin Yong Shin, Ho Cheol Park, Chang Jun Lee, Eun Jung Lee, Young Mi Beak
  • Publication number: 20220287121
    Abstract: The present invention relates to an operating method of a first communication node in a communication system, comprising the steps of: negotiating with a second communication node with respect to a parameter for multi-link transmission; determining, on the basis of the parameter, a plurality of links for performing the multi-link transmission, and the transmission method by which the multi-link transmission is performed; and transmitting, in the plurality of links, a data frame to the second communication node by means of the transmission method. Therefore, the communication node can efficiently set and change links.
    Type: Application
    Filed: July 10, 2020
    Publication date: September 8, 2022
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Sung Hyun HWANG, Kyu Min KANG, Jae Cheol PARK, Jin Hyung OH, Su Na CHOI, Yong Ho KIM, Han Seul HONG
  • Publication number: 20220250445
    Abstract: A vehicle air vent apparatus according to one embodiment of the present invention is an apparatus which guides air introduced from a vehicle air conditioner into a vehicle using a direct wind mode or indirect wind mode. The vehicle air vent apparatus includes a duct part including an entrance and an exit of an air passage communicating with the vehicle air conditioner, a cover part configured to selectively close the exit of the duct part, a vent part configured to adjust a wind direction of air introduced into the vehicle through the exit of the duct part and including a rack disposed under a body of the vent part and extending in a longitudinal front-rear direction of the vehicle, and a driving part configured to change a position of the cover part and a position of the vent part according to a preset logic.
    Type: Application
    Filed: May 17, 2021
    Publication date: August 11, 2022
    Inventors: Seung Cheol KIM, Chun Ha KIM, Yong Seok PARK
  • Publication number: 20220205110
    Abstract: An etchant composition of an embodiment may etch a multi-layered film of titanium/copper and may include about 5 wt % to about 20 wt % of persulfate, about 0.1 wt % to about 5 wt % of phosphoric acid or phosphate, about 0.01 wt % to about 2 wt % of a carbonyl ring compound, about 0.01 wt % to about 1 wt % of a 3-nitrogen ring compound, about 0.1 wt % to about 2 wt % of a 4-nitrogen ring compound, about 0.1 wt % to about 0.9 wt % of a fluorine compound, about 0.1 wt % to about 0.5 wt % of hydrogen about 1 wt % to about 3 wt % of a zwitterionic compound, and sulfate, water which is included in an amount that makes the total weight of the entire composition about 100 wt %.
    Type: Application
    Filed: December 30, 2021
    Publication date: June 30, 2022
    Inventors: BONG-KYUN KIM, CHANGWOO KWON, SEUNGBO SHIM, ILBAE AHN, SEOKJUN JANG, JINSUEK KIM, JI-HUN PARK, YONG-SU LEE, YANGIL JEON, GYU-PO KIM, SANG-WOO KIM, HYUN-CHEOL SHIN
  • Patent number: 10685205
    Abstract: An electronic device is provided. The electronic device includes an optical sensor, the optical sensor comprising a lighting device configured to emit light, a sensor layer including an array of sensors configured to detect first image information corresponding to an object from light reflected by the object, and a filter layer including openings configured to transmit the light reflected by the object, the filter layer disposed on the sensor layer, wherein the first image information is different from an image of the object identified with naked eyes. The electronic device may be diversified according to embodiments.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: June 16, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Eui Lee, Young-Min Seo, Young-Soo Lee, Yong-Cheol Park, Bong-Jae Rhee
  • Publication number: 20190102595
    Abstract: An electronic device is provided. The electronic device includes an optical sensor, the optical sensor comprising a lighting device configured to emit light, a sensor layer including an array of sensors configured to detect first image information corresponding to an object from light reflected by the object, and a filter layer including openings configured to transmit the light reflected by the object, the filter layer disposed on the sensor layer, wherein the first image information is different from an image of the object identified with naked eyes. The electronic device may be diversified according to embodiments.
    Type: Application
    Filed: July 18, 2018
    Publication date: April 4, 2019
    Inventors: Jin-Eui LEE, Young-Min SEO, Young-Soo LEE, Yong-Cheol PARK, Bong-Jae RHEE
  • Patent number: 9887037
    Abstract: This specification provides a method for deciding a communication protocol between a wireless power transmitter and a wireless power receiver. To this end, a method for deciding a communication protocol by the wireless power receiver for data transmission or reception with the wireless power transmitter includes transmitting first communication protocol information indicating communication protocols supportable by the wireless power receiver itself to the wireless power transmitter, and deciding a communication protocol for the data transmission or data reception based on second communication protocol information, which indicates communication protocols selected based on the first communication protocol information, when the second communication protocol information is received from the wireless power transmitter.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: February 6, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyunbeom Lee, Jaesung Lee, Yong-Cheol Park, Jeongkyo Seo
  • Patent number: 8628944
    Abstract: Disclosed is a method for producing ethanol from xylose using a recombinant Saccharomyces cerevisiae strain transformed to express a xylose reductase that uses NADH as a cofactor and a xylitol dehydrogenase that uses NAD+ as a cofactor, which are coupled with each other. The method provides an increase in ethanol yield and production efficiency, as compared to a control group, and enables production of ethanol at higher yield and high production efficiency by further eliminating acetaldehyde dehydrogenase which mediates production of acetic acid (by-product).
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: January 14, 2014
    Assignee: SNU R&DB Foundation
    Inventors: Jin-Ho Seo, Yong-Cheol Park
  • Publication number: 20130288595
    Abstract: This specification provides a method for deciding a communication protocol between a wireless power transmitter and a wireless power receiver. To this end, a method for deciding a communication protocol by the wireless power receiver for data transmission or reception with the wireless power transmitter includes transmitting first communication protocol information indicating communication protocols supportable by the wireless power receiver itself to the wireless power transmitter, and deciding a communication protocol for the data transmission or data reception based on second communication protocol information, which indicates communication protocols selected based on the first communication protocol information, when the second communication protocol information is received from the wireless power transmitter.
    Type: Application
    Filed: October 11, 2012
    Publication date: October 31, 2013
    Applicant: LG Electronics Inc.
    Inventors: Hyunbeom Lee, Jaesung Lee, Yong-Cheol Park, Jeongkyo Seo
  • Publication number: 20120329104
    Abstract: A modified microorganism having enhanced xylose utilization, an expression vector for constructing the modified microorganism, and a method of producing a chemical using the same are disclosed.
    Type: Application
    Filed: June 27, 2012
    Publication date: December 27, 2012
    Applicants: SEOUL UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Young KIM, Hyun Min KOO, Young kyoung PARK, Jae Chan PARK, Sung Min PARK, Jin Ho SEO, Yong Cheol PARK
  • Patent number: 8341456
    Abstract: An apparatus of recording data on a recording medium includes an optical recording device and a microcomputer. The recording medium has a lead-in area, a lead-out area, and a data zone, where the data zone has a user data area and a spare area. When the microcomputer receives a command for physically overwriting first data in a first area within the user data area and determines that the first area is included in a pre-recorded area, it controls the recording device to record the first data in a first replacement area instead and to record a first entry in a TDMA, where the first entry specifies the locations of the first area and the first replacement area.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: December 25, 2012
    Assignee: LG Electronics, Inc.
    Inventor: Yong Cheol Park
  • Patent number: 8296529
    Abstract: A write-once optical disc and a method and apparatus for recording management information on the disc are provided. The method includes recording an opened SRR information on a recording medium, and removing an identification of a certain SRR from the opened SRR information once the certain SRR is closed. The opened SRR information carries an identification of any opened SRR, and the number of opened SRRs allowed is at most a predetermined number.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: October 23, 2012
    Assignee: LG Electronics Inc.
    Inventor: Yong Cheol Park
  • Patent number: 8223607
    Abstract: The present invention provides an overwrite method of a write-once optical disc and apparatus thereof, by which a logical overwrite is enabled by varying an overwrite system according to a recording mode to enhance efficiency of disc use. The present invention includes the step of performing a replacement recording on a data area within the optical disc with overwrite-requested data in a specific recording-completed area within the optical disc in a sequential recording mode (SRM) wherein a logical overwrite is executed to maintain continuity of a user data area by the replacement recording. And, the present invention includes the step of performing a replacement recording on a spare area within the optical disc with overwrite-requested data in a specific recording-completed area within the optical disc in a random recording mode (RRM) wherein a size of the spare area for allocation is determined on disc initialization for the replacement recording.
    Type: Grant
    Filed: July 5, 2004
    Date of Patent: July 17, 2012
    Assignee: LG Electronics Inc.
    Inventor: Yong Cheol Park