Patents by Inventor Seung Keun Park

Seung Keun 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: 11951890
    Abstract: Proposed are a seat side bolster apparatus and a control method thereof. The seat side bolster apparatus of the disclosure includes a driving unit, which is provided under a foam pad of a seat cushion, is moved upwards and downwards by operation of an actuator, and presses the foam pad upwards when moving upwards, and a covering bracket, which is connected to the driving unit so as to be moved upwards and downwards together with the driving unit and to which an end of a covering enveloping the foam pad of the seat cushion is fixed.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: April 9, 2024
    Assignee: HYUNDAI TRANSYS INCORPORATED
    Inventors: Jae Keun Park, Do Hyun Kim, Sung Hyun Jo, Seung Joon Lee, Jae Sang Lim
  • Patent number: 11945744
    Abstract: Disclosed are a method and apparatus for reusing wastewater. The method for reusing wastewater disclosed herein includes: generating a mixed wastewater by mixing multiple types of wastewater (S20); performing a first purification by passing the mixed wastewater through a flocculation-sedimentation unit (S40); performing a second purification by passing an effluent of the flocculation-sedimentation unit through a membrane bioreactor (MBR) (S60); performing a third purification by passing an effluent of the MBR through a reverse-osmosis membrane unit (S80); and reusing an effluent of the reverse-osmosis membrane unit as cooling water or industrial water (S100).
    Type: Grant
    Filed: April 14, 2023
    Date of Patent: April 2, 2024
    Assignees: SAMSUNG ENGINEERING CO., LTD., SAMSUNG ELECTRONICS CO., LTD
    Inventors: Seok Hwan Hong, Dae Soo Park, Seung Joon Chung, Yong Xun Jin, Jae Hyung Park, Jae Hoon Choi, Jae Dong Hwang, Jong Keun Yi, Su Hyoung Cho, Kyu Won Hwang, June Yurl Hur, Je Hun Kim, Ji Won Chun
  • Publication number: 20240085791
    Abstract: The colored photosensitive resin composition of the present invention maintains excellent resolution, visibility, and the like while it has excellent reflectance RSCI measured by the SCI (specular component included) method, reflectance RSCE measured by the SCE (specular component excluded) method, and the ratio between them (RSCE/RSCI), and has a uniform film thickness in an appropriate range. Thus, it can be formed into a multilayer cured film that simultaneously satisfies such physical properties as a high reflectance and a high light-shielding property. In addition, when a cured film is formed from the composition, it is possible to form a pattern on a multilayer film in a single development process. Thus, it can be advantageously used for a quantum dot display device.
    Type: Application
    Filed: November 14, 2023
    Publication date: March 14, 2024
    Inventors: Seung-Keun KIM, Kyung-Jae PARK
  • Patent number: 11911185
    Abstract: An apparatus for estimating bio-information may include: a bio-signal acquirer configured to acquire a bio-signal; and a processor configured to extract one or more first feature values from the bio-signal, determine a scale factor based on the first feature values, and to estimate bio-information based on the scale factor and the first feature values.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon Park, Ui Kun Kwon, Yunseo Ku, Seung Woo Noh, Seung Keun Yoon, Dae Geun Jang
  • Publication number: 20230420823
    Abstract: Provided is a mode stirring device. The mode stirring device includes a transmission antenna configured to output a wireless signal to measure wireless performance in an electromagnetic (EM) wave reverberation chamber, an antenna connection bar having one end coupled to a lower end of the transmission antenna, a crankshaft connected to another end of the antenna connection bar, and a motor configured to change a position of the transmission antenna by rotating the crankshaft.
    Type: Application
    Filed: February 9, 2023
    Publication date: December 28, 2023
    Inventors: Dong-Uk SIM, Sangil KWAK, Seung Keun PARK, Hyeyeon KWON
  • Publication number: 20230384360
    Abstract: Provided is a wireless channel reproduction device having a structure of an reverberation chamber. More specifically, the wireless channel reproduction device may minimize a measurement uncertainty by satisfying recommendations on spatial uniformity or field uniformity of a working volume and may be designed as an internal structure of an reverberation chamber including a plurality of mode agitators.
    Type: Application
    Filed: March 10, 2023
    Publication date: November 30, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dong-Uk SIM, Sangil KWAK, Seung Keun PARK, Hyeyeon KWON
  • Patent number: 11722907
    Abstract: Provided is a method and apparatus for determining an operating condition for frequency coexistence and an operating condition determining method includes a method of calculating and transferring an inference-free available frequency and an output level to an existing radio station that operates and needs to be protected or a method of calculating a channel access parameter for sharing a frequency with a heterogeneous device, a network, or a system.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: August 8, 2023
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jung Sun Um, Bong-Su Kim, Igor Kim, Seung Keun Park
  • Patent number: 11696222
    Abstract: A method and a device for searching for an access point in a wireless LAN are disclosed. An operating method of a station comprising a PCR and a WUR comprises the steps of: allowing the WUR operating in a wake up state to receive a WUR beacon frame from an access point; shifting an operating state of the PCR from a sleep state to the wake up state, when the WUR beacon frame is received; and allowing the PCR operating in the wake up state to communicate with the access point. Therefore, the performance of a communication system can be improved.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: July 4, 2023
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Hyun Hwang, Igor Kim, Seung Keun Park
  • Publication number: 20230199788
    Abstract: Disclosed herein is a method for transmitting, by a terminal, a sounding reference signal (SRS). The terminal receives a grant for uplink multiple subframes from a base station. The terminal determines a first subframe for an SRS transmission of the terminal among the uplink multiple subframes on the basis of SRS transmission position information received from the base station. Further, the terminal transmits the SRS in the first subframe.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 22, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun UM, Hoiyoon JUNG, Seung Keun PARK, Sungjin YOO
  • Patent number: 11589381
    Abstract: Disclosed herein is a method for transmitting, by a terminal, a sounding reference signal (SRS). The terminal receives a grant for uplink multiple subframes from a base station. The terminal determines a first subframe for an SRS transmission of the terminal among the uplink multiple subframes on the basis of SRS transmission position information received from the base station. Further, the terminal transmits the SRS in the first subframe.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: February 21, 2023
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Hoiyoon Jung, Seung Keun Park, Sungjin Yoo
  • Patent number: 11553426
    Abstract: Disclosed is a method for operating a communication node supporting a low power mode in a wireless LAN. A method for operating a station, which includes a PCR and a WURx, comprises the steps of: allowing the WURx, which operates in a wake-up state, to receive a wake-up packet from an access point; transitioning an operating state of the PCR from a sleep state to the wake-up state when the wake-up packet is received; allowing the PCR, which operates in the wake-up state, to receive a data frame from an access point; and allowing the PCR to transmit, to the access point, a response to the data frame.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: January 10, 2023
    Assignees: Electronics and Telecommunications Research Institute, Korea National University of Transportation Industry-Academic Cooperation Foundation
    Inventors: Yong Ho Kim, Sung Hyun Hwang, Igor Kim, Seung Keun Park
  • Patent number: 11510214
    Abstract: A method of generating shared information includes determining an attenuation effect on transmission power of a new radio station due to a reception mask of an existing radio station, calculating an interference effect of the existing radio station due to the new radio station using the attenuation effect, determining a protection domain of the existing radio station according to the interference effect, and generating shared information to be used by the new radio station based on the protection domain, wherein the protection domain is a domain in which a frequency available to the new radio station is restricted.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: November 22, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Bong-Su Kim, Igor Kim, Seung Keun Park
  • Publication number: 20210360420
    Abstract: Provided is a method and apparatus for determining an operating condition for frequency coexistence and an operating condition determining method includes a method of calculating and transferring an inference-free available frequency and an output level to an existing radio station that operates and needs to be protected or a method of calculating a channel access parameter for sharing a frequency with a heterogeneous device, a network, or a system.
    Type: Application
    Filed: May 12, 2021
    Publication date: November 18, 2021
    Inventors: Jung Sun UM, Bong-Su KIM, Igor KIM, Seung Keun PARK
  • Patent number: 11172448
    Abstract: An operation method of a communication node for supporting a low power mode in a wireless LAN is disclosed. A method for operating an access point comprises: a step of transmitting a CTS frame to protect transmission of a wake-up packet, a step of transmitting the wake-up packet to wake up a station including PCR and WURx; and a step of transmitting a data frame to the station. Therefore, the performance of the communication system can be improved.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: November 9, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung Hyun Hwang, Seung Keun Park, Yong Ho Kim
  • Patent number: 11153818
    Abstract: Disclosed are a method and an apparatus for initial negotiation in a wireless LAN. An operating method of a station in a communication system comprises the steps of: generating a probe request frame including WUR capability information of the station which supports a WUR mode; transmitting the probe request frame; and receiving a probe response frame from an access point having received the probe request frame. Therefore, the performance of the communication system can be improved.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: October 19, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Hyun Hwang, Igor Kim, Seung Keun Park
  • Patent number: 11140690
    Abstract: A method for transmitting an uplink signal in an unlicensed band by a terminal is provided. The terminal receives first scheduling information that schedules one or more uplink subframes, from a base station in a first downlink subframe. The terminal receives second scheduling information that determines a transmission time point of the uplink signal, from the base station in a second downlink subframe after the first downlink subframe. The terminal transmits the uplink signal in a first uplink subframe corresponding to the transmission time point among the one or more uplink subframes.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 5, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Hoiyoon Jung, Sungjin Yoo, Seung Keun Park
  • Publication number: 20210274509
    Abstract: A method of generating shared information includes determining an attenuation effect on transmission power of a new radio station due to a reception mask of an existing radio station, calculating an interference effect of the existing radio station due to the new radio station using the attenuation effect, determining a protection domain of the existing radio station according to the interference effect, and generating shared information to be used by the new radio station based on the protection domain, wherein the protection domain is a domain in which a frequency available to the new radio station is restricted.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 2, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Bong-Su Kim, Igor Kim, Seung Keun Park
  • Publication number: 20210266825
    Abstract: A method and a device for searching for an access point in a wireless LAN are disclosed. An operating method of a station comprising a PCR and a WUR comprises the steps of: allowing the WUR operating in a wake up state to receive a WUR beacon frame from an access point; shifting an operating state of the PCR from a sleep state to the wake up state, when the WUR beacon frame is received; and allowing the PCR operating in the wake up state to communicate with the access point. Therefore, the performance of a communication system can be improved.
    Type: Application
    Filed: May 6, 2021
    Publication date: August 26, 2021
    Inventors: Sung Hyun HWANG, Igor KIM, Seung Keun PARK
  • Patent number: 11050506
    Abstract: An apparatus for analyzing a frequency use status may obtain a candidate radio network temporary identifier (RNTI) using downlink control information (DCI), estimate an active RNTI from the candidate RNTI, and analyze a frequency use status using the active RNTI.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: June 29, 2021
    Assignee: Electronics and Telecommunications Research institute
    Inventors: Jung Sun Um, Igor Kim, Seung Keun Park, Hyeyeon Kwon, Yunbae Kim, Young Hwan Lee
  • Patent number: 11044747
    Abstract: Disclosed is a method for scheduling an uplink transmission in a communication network. A terminal operation method comprises the steps of: detecting a control channel of a subframe #n transmitted from a base station; receiving an uplink grant from the control channel; and transmitting, to the base station, a plurality of subframes scheduled by the uplink grant. Thus, the performance of the communication network may be improved.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: June 22, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Hoi Yoon Jung, Seung Keun Park, Sung Jin Yoo