Patents by Inventor Gil Choi

Gil 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).

  • Publication number: 20250143592
    Abstract: The present disclosure relates to a method of extracting spatiotemporal features of electrocardiogram (ECG) and photoplethysmography (PPG) signals corresponding to each other using a neural network and of estimating blood pressure on the basis of the spatiotemporal features. The method includes: generating a target signal of a plurality of channels by respectively combining ECG signals and PPG signals corresponding to each other; extracting a first feature composed of a plurality of channels by inputting the target signal of a plurality of channels into a 1D convolution layer; generating a channel-wise weight vector by compressing the first feature; computing a second feature composed of a plurality of channels by applying the channel-wise weight vector to the first feature; extracting a third feature by inputting the second feature into a CNN model; and determining systolic and diastolic blood pressures by inputting the third feature into an LSTM model.
    Type: Application
    Filed: July 8, 2024
    Publication date: May 8, 2025
    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, CHOSUN UNIVERSITY
    Inventors: Jae Hyo JUNG, Geng Jia ZHANG, Dae Gil CHOI
  • Publication number: 20250127040
    Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure or by comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to produce an organic electroluminescent device having improved luminous efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.
    Type: Application
    Filed: October 24, 2024
    Publication date: April 17, 2025
    Inventors: Su-Hyun LEE, Kyung-Hoon CHOI, So-Young JUNG, Chi-Sik KIM, Soo-Yong LEE, Sang-Hee CHO, Young-Jun CHO, Young-Gil KIM, Bitnari KIM, Young-Jae KIM, Hyo-Nim SHIN
  • Publication number: 20250125437
    Abstract: A battery module according to an embodiment of the present invention may include: a battery cell having formed thereon cell tabs; a heat sink arranged on one side of the battery cell to discharge heat generated from the battery cell to the outside; bus bars connected with the cell tabs; a bus bar frame which supports the bus bars; a cooling plate arranged apart from the bus bar frame and connected to the heat sink to enable heat transfer; and a phase change member which is arranged between the cooling plate and the bus bars to transfer, to the cooling plate, heat generated at the connection sites between the bus bars and the cell tabs and which includes a phase change material that changes phase by absorbing the heat generated at the connection sites between the bus bars and the cell tabs.
    Type: Application
    Filed: December 20, 2024
    Publication date: April 17, 2025
    Applicant: INZICONTROLS CO., LTD.
    Inventors: Jung Min KIM, Soo Gil Kim, Hyoung Min Choi, Seung Yong Yoo
  • Publication number: 20250100425
    Abstract: Automated swivel seat and control method thereof are provided. Automated swivel seat comprising a base part fixed to a lower frame of the vehicle and comprising a first through hole formed in a central part thereof, a seat support part fixed to a lower side of a seat frame and configured to rotate on the base part, a swivel structure disposed between the base part and the seat support part and comprising an upper swivel plate coupled to the seat support part and a lower coupling plate coupled to the base part, a first gear coupled to one side of the upper swivel plate, a second gear engage with the first gear, a motor part configured to provide power to the second gear, a sensor part configured to generate gear measurement values comprising a rotation direction and a rotation angle of the seat support part.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 27, 2025
    Inventors: Jae Yel Song, Hai Tai Choi, Chae Sung Song, Se Gil Shin, Sang Ho Lee, Man Gi Lee, Yong Choi
  • Patent number: 12262477
    Abstract: A reprint apparatus may include: a defect checking unit configured to check a defective portion in a solder resist layer of a circuit board; a material filling unit positioned above the circuit board to fill the defective portion with a filling material; and a curing unit configured to cure the material filled in the defective portion. The defect checking unit may be configured to calculate a volume of the defective portion, and the material filling unit may be configured to calculate a discharge amount of the filling material based on the calculated volume of the defective portion, and then discharge the filling material by the discharge amount.
    Type: Grant
    Filed: February 17, 2023
    Date of Patent: March 25, 2025
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Do Jae Yoo, Yong Gil Namgung, Jong Hoon Shin, Sang Soon Choi, Young Chul An
  • Patent number: 12260909
    Abstract: Operating a selector device that controls access of a signal to a memory element may comprise applying a main operating voltage pulse and a refresh voltage pulse to the selector device. The refresh voltage pulse and main operating voltage pulse have opposite polarities. A magnitude of the main operating voltage pulse is greater than or equal to a threshold voltage for turning on the selector device, and a maximum magnitude of the refresh voltage pulse is less than the threshold voltage. The refresh voltage pulse reduces a difference between the threshold voltage and a turn-off voltage of the selector device, and may be applied immediately before or immediately after the main operating voltage pulse. An electronic circuit may include the selector device and a driving circuit for apply the pulses. A nonvolatile memory may include the driving circuit and a plurality of nonvolatile memory elements each including a selector device.
    Type: Grant
    Filed: March 22, 2023
    Date of Patent: March 25, 2025
    Assignees: SK hynix Inc., FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
    Inventors: Tae Jung Ha, Soo Gil Kim, Jeong Hwan Song, Byung Joon Choi, Ha Young Lee
  • Patent number: 12253688
    Abstract: A system for driving an actuator which is capable of providing constant resolution regardless of a type of an actuator according to an aspect of the present invention includes an actuator driving circuit configured to generate a driving current for an operating actuator and output the generated driving current to the operating actuator, a current sensing unit configured to sense a current of the operating actuator and generate a sensing signal, and a gain adjustment unit configured to calculate a gain on the basis of a first maximum driving current range of the operating actuator and a second maximum driving current range of a reference actuator and change the sensing signal on the basis of the gain. A signal generated based on the second sensing signal is input to the actuator driving circuit.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: March 18, 2025
    Assignee: LX Semicon Co., LTD
    Inventors: Dong Gil Jeong, Kyu Ho Kim, Ho Yul Choi, Chang In Park
  • Publication number: 20250084776
    Abstract: A device configured to detect a drop of oil pressure includes: a first gate configured to receive an acceleration measured by an acceleration sensor and to output a logical value indicating whether the acceleration falls within a range that is determined by a turning cam tracking diagnosis entry acceleration and a turning cam tracking diagnosis escape acceleration; a second gate configured to invert an output of the first gate; and a third gate configured select and output one of an output value of the second gate or a first value based on a first selection signal. The device is configured to perform a turning cam tracking diagnosis entry when the output value of the third gate is the first value, and the device is configured to not perform the turning cam tracking diagnosis entry when the output value of the third gate is a second value.
    Type: Application
    Filed: September 10, 2024
    Publication date: March 13, 2025
    Inventors: Kihyoung PARK, Jae Ik AHN, Jaekyoung JEONG, Jaekyun LEE, Hyang LEE, Seong Gil CHOI, Myung Rae CHO, Seongmin LEE
  • Publication number: 20250030097
    Abstract: A battery module includes a module housing accommodating a plurality of battery cells; a pair of high-voltage terminals provided on the front of the module housing; a pair of module lifting holes provided between the high-voltage terminals; a thermal barrier that wraps around part of the front of the module housing including the high-voltage terminals, with fastening holes penetrating through its upper surface; and a fastening member installed by penetrating through the module lifting hole and fastening hole to secure the thermal barrier to the module lifting hole.
    Type: Application
    Filed: September 25, 2023
    Publication date: January 23, 2025
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Dae Gil KIM, Jong Hwa CHOI, Chae Won LIM, Hyoung Suk LEE
  • Patent number: 12207537
    Abstract: An embodiment of the present inventive concept provides a display device including: a mother substrate on which a plurality of display modules are located; and a mother film located on a rear surface of the mother substrate, wherein the mother film may include a first layer, and a second layer disposed between the first layer and the mother substrate, the second layer has a thickness of from about 40 ?m to about 60 ?m, and a thickness of the first layer may be greater than that of the second layer.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: January 21, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Nyun Kim, Ki Chul Bae, Jong Gil Ryu, Seung Min Lee, Chang Yong Lee, Chul Kyu Choi, In Huh, Jong Hak Hwang
  • Publication number: 20250009309
    Abstract: The present invention relates to a method for estimating blood pressure from photoplethysmography (PPG) signals. The blood pressure estimation method using the CFR model according to an embodiment of the present invention is characterized in that it comprises the steps of extracting a plurality of blood flow characteristics from PPG signals for training, calculating systolic and diastolic blood pressures from ambulatory blood pressures for training, labeling the systolic and diastolic blood pressures with the plurality of blood flow characteristics to train a cascade forest regression model, and inputting the PPG signals of a target user into the trained cascade forest regression model to determine the systolic and diastolic blood pressures of the target user.
    Type: Application
    Filed: November 17, 2023
    Publication date: January 9, 2025
    Applicant: Industry-Academic Cooperation Foundation, Chosun University
    Inventors: Jae Hyo JUNG, Geng Jia ZHANG, Dae Gil CHOI
  • Patent number: 12166238
    Abstract: A secondary battery includes a Z stack electrode assembly including a separator bent in a Z shape and including a plurality of bent areas, a first electrode plate on a lower portion of each of the bent areas, and a second electrode plate on an upper portion of each of the bent areas, and an exterior portion configured to accommodate the Z stack electrode assembly, and an outermost end area of the separator is bent to be thermally fused to a bent area of the plurality of bent areas of the separator.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: December 10, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyu Gil Choi, Won Wook Cho
  • Publication number: 20240247222
    Abstract: The present invention relates to a microorganism culture production amount prediction system and method with improved accuracy in predicting the microorganism culture production amount using a metabolic model equation by calculating the predicted substrate concentration from the metabolic model equation, calculating the actually measure substrate concentration from the spectrum data of the culture solution, comparing the predicted substrate concentration with the actually measured substrate concentration, and updating the parameters of the metabolic model equation, in a method for predicting the culture concentration of microorganisms with known metabolic model equation governing the metabolic model.
    Type: Application
    Filed: August 26, 2022
    Publication date: July 25, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Jae Gil CHOI, You Bin KWON, Young Soo SONG, Ye Hoon IM, Jun Won CHOI
  • Patent number: 12036781
    Abstract: An apparatus configured to manufacture a display device and a method of manufacturing a display device include a stage configured to place a process target object on an upper surface thereof; a bending head in contact with the process target object to bend the process target object; a distance measurement sensor installed above the stage to be movable in a horizontal direction; and a cylinder configured to adjust a vertical position of the bending head.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: July 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myung Gil Choi, Jung Min Lee, Min Ha Yun, Sang Moo Lee
  • Publication number: 20240199340
    Abstract: Embodiments of the inventive concept provide an article transfer apparatus and an article transfer method which can temporarily load a container, and which can vary its size according to necessity, so an interference with surrounding structures do not occur while varying the size. The inventive concept provides an article transfer apparatus at which an OHT transfers a container.
    Type: Application
    Filed: December 5, 2023
    Publication date: June 20, 2024
    Applicant: SEMES CO., LTD.
    Inventors: Do-Hyun KIM, Jung Gil CHOI, Sung Ho LEE
  • Publication number: 20240154123
    Abstract: Disclosed are a binder composition for an all-solid-state secondary battery, including a copolymer including a conjugated diene-based monomer, an aromatic vinyl-based monomer, and an ethylenically unsaturated acid monomer, a trithiocarbonate-based compound, a mercaptan-based compound, and a solvent, wherein a weight average molecular weight (Mw) of the copolymer is 50,000 to 200,000, and a molecular weight distribution (Mw/Mn) is 1 to 5, a method of preparing the same, a slurry composition for a cathode or a solid electrolyte including the same, and a secondary battery manufactured therefrom.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 9, 2024
    Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.
    Inventors: Jeong Geun KIM, Jae Kon SUH, In Oh SONG, Young Gil CHOI
  • Publication number: 20240155929
    Abstract: An apparatus for manufacturing a display device includes a plurality of working tables, a plurality of arm modules, and a rotator. The plurality of working tables are spaced apart from each other in a first direction and are configured to support a target board. The plurality of arm modules are arranged in the first direction and spaced apart from the plurality of working tables in a second direction intersecting the first direction. The rotator is connected to the plurality of arm modules and configured to rotate about a rotation axis extending in the first direction.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Inventors: Myung Gil CHOI, Jung Min LEE, Dong Woo KIM, Sang Moo LEE
  • Patent number: 11976386
    Abstract: A method of preparing a carbon fiber including: preparing a precursor fiber for preparing a carbon fiber; and stabilizing the precursor fiber. The stabilization of the precursor fiber includes a first stabilization phase, a second stabilization phase, a third stabilization phase, and a fourth stabilization phase, which are set at four different temperatures between a temperature at which heat starts to be generated from the stabilization reaction of the precursor fiber and a temperature at which the generation of heat is maximized. Ozone gas is input while at least one phase of the third stabilization phase and the fourth stabilization phase is carried out.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 7, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Jae Gil Choi, Ji Hye Shin, Joon Hee Cho, Su Jin Kim, Ki Hwan Kim, Il Ha Lee, Myung Su Jang
  • Publication number: 20240141148
    Abstract: Disclosed are a binder for a secondary battery anode including styrene-butadiene-based rubber with a core-shell structure and nitrile-butadiene-based rubber with a gel content of 15% or more, wherein a weight ratio of the styrene-butadiene-based rubber and the nitrile-butadiene-based rubber is 65:35 to 99:1, an anode mixture for a secondary battery, and an anode and a secondary battery including the same.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 2, 2024
    Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD
    Inventors: Jeong Geun KIM, Young Gil Choi, Yong Jun Lee
  • Publication number: 20240126831
    Abstract: A depth-wise convolution acceleration device using an MAC array processor structure according to the present invention may include a data output unit, which receives a data of each row of the image from the data buffer and inputs the data into convolution operation blocks while shifting the data N?1 times according to the kernel size (N×N) and a weight output unit, which receives the kernel data from the kernel buffer and sequentially inputs a weight value constituting the kernel data to each of the row convolution operation blocks, and inputs the weight delaying by N clocks if the row increases as N rows.
    Type: Application
    Filed: October 16, 2023
    Publication date: April 18, 2024
    Inventors: Hyo Seung LEE, Seen Suk KANG, Sang Gil CHOI, Seang Hoon KIM, Yong Wook KWON