Patents by Inventor Sung Jin Yoo

Sung Jin Yoo 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: 20220204796
    Abstract: A method for manufacturing a display device comprises the steps of: spraying, on a target substrate having a first electrode and a second electrode formed thereon, an element ink comprising a first element solvent and light-emitting elements dispersed in the first element solvent; forming a second element solvent in which at least some bonds of the first element solvent are decomposed by irradiating light to the first element solvent and mounting the light-emitting elements on the first electrode and the second electrode; and removing the second element solvent.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 30, 2022
    Inventors: Jae Hoon JUNG, Hee Yeon YOO, Hye Jung HONG, Hyo Jin KO, Duk Ki KIM, Jun Bo SIM, Sung Chan JO, Jong Hyuk KANG, Keun Kyu SONG, Hyun Min CHO
  • Patent number: 11374177
    Abstract: Provided are a compound represented by the following Chemical Formulas and an organic light emitting device comprising the same.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: June 28, 2022
    Inventors: Kwang Ju Jung, Sung Soo Kim, Hyun Young Yoo, Jong Jin Ha, Seok Jong Lee, Chun Young Lee
  • Publication number: 20220196827
    Abstract: A method for calculating an altitude of a target through an apparatus for calculating an altitude of the target, which comprises a plurality of MIMO radar virtual antennas, may comprise: receiving electromagnetic waves reflected from the target through a pair of virtual antennas classified into an upper antenna and a lower antenna and alternately arranged in two columns linearly; obtaining range information and phase information of the target from the pair of virtual antennas by analyzing the electromagnetic waves; and calculating altitude information of the target from position information of the pair of virtual antennas, and the range information and the phase information.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 23, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hyung Ju KIM, Sung Jin YOO, Byung Jang JEONG, Woo Jin BYUN, In Kui CHO
  • Publication number: 20220163755
    Abstract: The present embodiment relates to a lens driving device including: a first movable element including a bobbin and a first coil; a second movable element including a housing and a first magnet; a base disposed below the housing; a board including a circuit member having a second coil; an upper elastic member; and a support member, wherein the bobbin includes a first stopper and a second stopper, which overlap the second movable element in an optical axis direction and are spaced apart from each other, the housing includes side parts and corner parts formed between the side parts, a first stopper is disposed on the side of the corner parts, the second stopper is disposed on the side of the side parts, and the distance between the first stopper and the second movable element in the optical axis direction is different from the distance between the second stopper and the second movable element in the optical axis direction.
    Type: Application
    Filed: February 14, 2022
    Publication date: May 26, 2022
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Sang Jun MIN, Tae Jin JUNG, Kyoung Ho YOO, Sung Guk LEE
  • Publication number: 20220147241
    Abstract: A controlling a portable device comprising a first touch screen and a second touch screen is provided. The method includes displaying first information related to a first application on the first touch screen and displaying second information related to the first application on the second touch screen; receiving a first user input moving to the first touch screen on the second touch screen; and replacing the first information and the second information with a third information and a fourth information related to the first application on the first touch screen and the second touch screen, in response to receiving the first user input, wherein each of the third information and the fourth information is displayed while being slidden in direction from the second touch screen to the first touch screen and the third information is displayed over a boundary between the first touch screen and the second screen during the sliding of the third information and the fourth information.
    Type: Application
    Filed: January 19, 2022
    Publication date: May 12, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Joon-kyu SEO, Kyung-A KANG, Ji-Yeon KWAK, Hyun-Jin KIM, Hyun-Jung SONG, Sung-Sik YOO, Ju-Youn LEE, Dong-Seok RYU, Min-Kyu PARK
  • Patent number: 11198953
    Abstract: The present invention relates to an energy saving method for separating an unreacted monomer, by which an unreacted monomer may be easily recovered from a mixture solution including an unreacted monomer, and a separation system which is capable of performing the method.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: December 14, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jae Ik Lee, Sung Jin Yoo, Jeong Seok Lee, Mi Kyung Kim
  • Patent number: 11134444
    Abstract: Disclosed are a low-power communication method and a low-power communication apparatus in a communication system. A low-power station may comprise a processor; a memory storing at least one instruction executable by the processor; a receiver for receiving a WUR PPDU according to the at least one instruction; and a transceiver for transmitting and receiving a legacy PPDU according to the at least one instruction, and the at least one instruction may be configured to cause the receiver to receive a WUR wake-up frame from the access point in an on-duration within a WUR duty cycle period; when the WUR wake-up frame is received, cause the processor to transmit a first signal requesting wake-up to the transceiver; and when the first signal is received, cause the transceiver to transition from a sleep state to a wake-up state at a TWT configured between the access point and the low-power station.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: September 28, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Hyun Hwang, Kyu Min Kang, Sung Jin Yoo, Su Na Choi, Jae Cheol Park, Yong Ho Kim
  • 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
  • Publication number: 20210140072
    Abstract: The present invention relates to an energy saving method for separating an unreacted monomer, by which an unreacted monomer may be easily recovered from a mixture solution including an unreacted monomer, and a separation system which is capable of performing the method.
    Type: Application
    Filed: December 24, 2018
    Publication date: May 13, 2021
    Inventors: Jae Ik LEE, Sung Jin YOO, Jeong Seok LEE,, Mi Kyung KIM
  • Patent number: 10932294
    Abstract: The present invention relates to a method for transmitting uplink data in a spectrum sharing wireless communication system wherein, in order to enhance uplink transmission efficiency in an LTE-U service, clear channel assessment (CCA) is performed on a user terminal so as to consider the hidden node problem, and channel occupation based on an uplink signal of another terminal is considered, wherein applied are: a method for generating and transmitting a random backoff counter value at a base station so that all terminals can equally use a channel connection parameter needed for transmitting an uplink subframe in an unlicensed band; and a downlink controlling method for scheduling an uplink multi-subframe.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: February 23, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jung Sun Um, Sung Jin Yoo, Hoi Yoon Jung, Seung Keun Park
  • Patent number: 10856328
    Abstract: Disclosed is a method for communicating in a network supporting licensed and unlicensed bands. A terminal operation method comprises the steps of: detecting a control channel of a subframe #n transmitted from a base station; obtaining, from the control channel, a DCI for an uplink grant; executing channel sensing on the basis of channel connection-related information included in the DCI; and transmitting, to the base station, a subframe #(n+1) if the result of executing channel sensing is an idle state. Thus, the performance of the communication network may be improved.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: December 1, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Hoi Yoon Jung, Seung Keun Park, Sung Jin Yoo
  • Patent number: 10727979
    Abstract: Disclosed are operation methods of a communication node in a network supporting licensed and unlicensed bands. An operation method of a user equipment (UE) may comprises receiving, from a base station, a physical downlink control channel (PDCCH) including downlink control information (DCI) in a subframe n?1 of an unlicensed band; decoding the DCI using a common radio network temporary identifier (RNTI); and identifying the number of symbols of the subframe n?1 or a subframe n based on the decoded DCI. Therefore, a performance of the network can be enhanced.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: July 28, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Hoi Yoon Jung, Sung Jin Yoo, Seung Keun Park
  • Patent number: 10701752
    Abstract: The present invention relates to a device and method for allocating a coexistence resource in an unlicensed band. The device according to the present invention comprises: a frame configuration unit for configuring a subframe in which data and a reference signal for a channel in an unlicensed band are allocated, and allocating a part of the symbols of the subframe as a coexistence resource; a signal detection unit for detecting a signal of another LTE system or Wi-Fi system during a transmission idle period where the coexistence resource is allocated; and a transmission processing unit which, when the signal of another system is detected during the transmission idle period, does not occupy a resource for the next subframe, and when the occupation of the coexistence resource by the another system has ended, occupies the resource for the next subframe.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: June 30, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Kyu Min Kang, Seung Keun Park, Jae Cheol Park, Sung Jin Yoo, Dong Hun Lee, Hoi Yoon Jung, Su Na Choi, Sung Hyun Hwang
  • Patent number: 10673576
    Abstract: An operating method of a communication node in a network supporting licensed and unlicensed bands is disclosed. An operation method of a base station comprises the steps of: transmitting a PDSCH to a UE in an unlicensed band; receiving an HARQ response to the PDSCH from the UE; and determining a size of a CW on the basis of a proportion of NACKs in HARQ responses. Therefore, a performance of a communication network can be improved.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: June 2, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Sung Jin Yoo, Hoi Yoon Jung, Seung Keun Park
  • Patent number: 10630440
    Abstract: A method and an apparatus for transmitting and receiving a signal in a communication network are disclosed. A method for operating UE supporting an unlicensed band comprises the steps of: receiving from a base station DMTC-related information including DMTC cycle and DMTC offset; checking DMTC section to which DRS is transmitted based on the DMTC-related information; and receiving from the base station the DRS using sub-frames apart from a sub-frame corresponding to the DRS cycle within the DMTC section. As a result, the performance of a communication network can be improved.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: April 21, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hoi Yoon Jung, Sung Jin Yoo, Jung Sun Um, Seung Keun Park
  • Patent number: 10595335
    Abstract: A scheduling method for a communication network supporting an unlicensed band is disclosed. An operation method of UE comprises the steps of: receiving, from a base station, an unlicensed band burst including a plurality of subframes in an unlicensed band; acquiring control information from the unlicensed band burst; and acquiring data from the unlicensed band burst on the basis of the control information. Therefore, the performance of the communication network can be improved.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: March 17, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hoi Yoon Jung, Jung Sun Um, Sung Jin Yoo, Seung Keun Park
  • Publication number: 20200064461
    Abstract: An operation method performed by an apparatus for detecting multiple targets may comprise transmitting first signals using Mt transmit antennas included in the apparatus; receiving the first signals reflected by the multiple targets through Mr receive antennas included in the apparatus; generating a first function for estimating a velocity and an azimuth of each of the multiple targets using the first signals and the reflected first signals; estimating a velocity and an azimuth that maximize a result of the first function as a velocity and an azimuth of a first target closest to the apparatus among the multiple targets; generating a second function by cancelling interference caused by the first target from the first function; and estimating a velocity and an azimuth that maximize a result of the second function as a velocity and an azimuth of a second target among the multiple targets.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 27, 2020
    Inventors: Sung Hyun HWANG, Woo Jin BYUN, Sung Jin YOO, Jae Hyun PARK
  • Publication number: 20200015165
    Abstract: Disclosed are a low-power communication method and a low-power communication apparatus in a communication system. A low-power station may comprise a processor; a memory storing at least one instruction executable by the processor; a receiver for receiving a WUR PPDU according to the at least one instruction; and a transceiver for transmitting and receiving a legacy PPDU according to the at least one instruction, and the at least one instruction may be configured to cause the receiver to receive a WUR wake-up frame from the access point in an on-duration within a WUR duty cycle period; when the WUR wake-up frame is received, cause the processor to transmit a first signal requesting wake-up to the transceiver; and when the first signal is received, cause the transceiver to transition from a sleep state to a wake-up state at a TWT configured between the access point and the low-power station.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 9, 2020
    Inventors: Sung Hyun HWANG, Kyu Min KANG, Sung Jin YOO, Su Na CHOI, Jae Cheol PARK, Yong Ho KIM
  • Patent number: 10431321
    Abstract: A transconductance test method implemented in a flash memory device detects memory cells with low transconductance and provides an output identifying memory cells, if any, having been classified as having a low transconductance (low gm). In some embodiments, the transconductance test method implements multi-step testing using a pair of gate bias levels for each test step. Accurate detection of memory cells with low transconductance can be realized.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: October 1, 2019
    Assignee: Integrated Silicon Solutions, (Cayman) Inc.
    Inventor: Sung Jin Yoo
  • Patent number: 10135594
    Abstract: Disclosed is a scheduling method for a communication network supporting an unlicensed band. An operation method of a user equipment (UE) may comprise obtaining a control channel from a partial subframe having a length of less than 1 millisecond in an unlicensed band; obtaining scheduling information from the control channel; and obtaining a data channel indicated by the scheduling information from the partial subframe. Therefore, performance of the communication network can be enhanced.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: November 20, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hoi Yoon Jung, Sung Jin Yoo, Jung Sun Um, Seung Keun Park