Patents by Inventor In Jun Choi

In Jun 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: 20230194620
    Abstract: An apparatus for diagnosing a state of a battery includes a profile obtaining unit configured to obtain a voltage profile of a battery for voltage and capacity of the battery, and a control unit configured to obtain a differential profile for the voltage and the capacity from the voltage profile, select a plurality of peaks included in a predetermined voltage section of the obtained differential profile, determine a first peak associated with a negative electrode and a second peak associated with a positive electrode among the plurality of selected peaks, compare the first peak and the second peak with a first reference peak and a second reference peak of a preset reference profile, respectively, and diagnose a state of the battery based on at least one of a efdifference between the first peak and the first reference peak or a efdifference between the second peak and the second reference peak.
    Type: Application
    Filed: April 27, 2021
    Publication date: June 22, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyun-Jun Choi, Dae-Soo Kim, Young-Deok Kim, Bo-Mi Lim
  • Publication number: 20230191942
    Abstract: A battery management system includes a sensor to sense voltage and current of a battery, memory to store over-potential management information including reference peak and reference peak voltage values, and a controller to command constant-current charging using a maximum allowable C-rate to a charging circuit when the reference peak value is equal to or larger than a threshold peak value, in response to a charge request, determine a differential capacity curve indicating a correlation between the voltage and differential capacity of the battery within a range based on the sensed voltage and current during the charging, determine main peak and main peak voltage values indicating differential capacity and voltage of a peak of the differential capacity curve, respectively. and update the reference peak and reference peak voltage values to equal the main peak and main peak voltage values, when the main peak value is less than the threshold peak value.
    Type: Application
    Filed: August 13, 2021
    Publication date: June 22, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: A-Ming Cha, Yoon-Jung Bae, Dae-Soo Kim, Bo-Mi Lim, Hyun-Jun Choi
  • Patent number: 11682436
    Abstract: A memory device in which reliability of a clock signal is improved is provided. The memory device comprises a data module including a clock signal generator configured to receive an internal clock signal from a buffer, and to generate a first internal clock signal, a second internal clock signal, a third internal clock signal, and a fourth internal clock signal having different phases, on the basis of the internal clock signal, and a first data signal generator configured to generate a first data signal on the basis of first data and the first internal clock signal, generate a second data signal on the basis of second data and the second internal clock signal, generate a third data signal on the basis of third data and the third internal clock signal, and generate a fourth data signal on the basis of fourth data and the fourth internal clock signal.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: June 20, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeok Jun Choi, Young Chul Cho, Seung Jin Park, Jae Woo Park, Young Don Choi, Jung Hwan Choi
  • Patent number: 11678740
    Abstract: A foldable frame includes first and second mounting assemblies pivotally coupled with each other at their proximal sides. The foldable frame also includes first, second and third leg assemblies, each having an upper member coupled with one or more of the first and second mounting assemblies and a base member abutting a ground when in use. The upper members of the first, second and third leg assemblies are substantially parallel to each other, with a distance between the upper members of the first and third leg assemblies different than a distance between the upper members of the second and third leg assemblies. As a result, when folded, the base members of the first, second and third leg assemblies are disposed side by side along a longitudinal direction of the foldable frame.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: June 20, 2023
    Assignee: Inno-Sports Co., Ltd.
    Inventor: Kwan Jun Choi
  • Patent number: 11681830
    Abstract: A method for determining whether or not a display panel is a duplicate is provided. The method includes: generating, by a code generator in an electronic module, a code, the electronic module including a plurality of electronic components; transmitting, by the code generator, the code to each of a first sequence generator in the electronic module and a second sequence generator in a display panel, the display panel being configured to be mounted to the electronic module; generating, by the first sequence generator, a first response value, and transmitting the first response value to a certification component in the electronic module; generating, by the second sequence generator, a second response value, and transmitting the second response value to the certification component; and comparing, by the certification component, the received first response value and the received second response value.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: June 20, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Moon Sang Hwang, Weon Jun Choe, Deok Jun Choi
  • Publication number: 20230187129
    Abstract: A coil component includes a molded portion having one surface and another surface opposing each other, and a wound coil disposed on the one surface of the molded portion and including an innermost turn, at least one intermediate turn, and an outermost turn disposed outwardly of a central portion of the one surface of the molded portion. A cover portion is disposed to face the one surface of the molded portion and to cover the wound coil, and first and second external electrodes are connected to the wound coil and arranged to be spaced apart from each other on the other surface of the molded portion. A thickness of one region of the cover portion disposed on the innermost turn is thicker than a thickness of another region of the cover portion disposed on the outermost turn.
    Type: Application
    Filed: February 7, 2023
    Publication date: June 15, 2023
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byung Soo Kang, Byeong Cheol Moon, Tae Jun Choi, Ju Hwan Yang
  • Publication number: 20230175121
    Abstract: A method for growing a nitride film in accordance with an exemplary embodiment includes charging a substrate into a growth space, and growing a nitride film on the substrate, wherein the growing of a nitride film may include reacting a first reaction gas with a source raw material to supply a generated gas to the growth space, supplying a second reaction gas to the growth space, and supplying an oxygen-containing gas and a hydrogen-containing gas to the growth space. Accordingly, according to exemplary embodiments, even when a nitride film is formed thin, it is possible to planarize the upper surface of the nitride film. Accordingly, it is possible to reduce process time required to grow or form the nitride film until the upper surface thereof is planarized, and thus, there is an effect of improving the production rate.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 8, 2023
    Inventors: Hae Yong LEE, Young Jun CHOI, Hae Gon OH
  • Publication number: 20230179861
    Abstract: An embodiment discloses an apparatus for controlling a camera module, including a parameter generation unit configured to generate a parameter entity group, calculate a fitness value of the parameter entity group based on a step response characteristic of an output signal, and generate an offspring entity by applying weight-gain elitism to a parameter entity having the smallest fitness value among parameter entities included in the parameter entity group, and a controller configured to generate a control signal by multiplying an error signal by a parameter.
    Type: Application
    Filed: June 2, 2022
    Publication date: June 8, 2023
    Applicant: LX Semicon Co., Ltd
    Inventors: Seung Jun CHOI, Kyu Ho KIM, Tae Gwan KIM, Su Gyeong PARK
  • Publication number: 20230170624
    Abstract: The present invention relates to a mechanical meta-material based electromagnetic wave absorber, wherein a shape of the electromagnetic wave absorber is any one of a kelvin-foam, an octet-truss, a body-centered cubic lattice, a simple cubic triply minimal surface (SC-TPMS), and a cubic cellular core (CCC) and a honeycomb, a dielectric loss of the electromagnetic wave absorber is controlled by changing a strut diameter of a unit cell including at least one of carbon black, carbon nanotube, carbon fiber and graphene constituting the electromagnetic wave absorber.
    Type: Application
    Filed: May 30, 2022
    Publication date: June 1, 2023
    Inventors: Jin-Woo PARK, Jung-Kun SONG, Eun-Kyung JUN, Ki-Soo LEE, Jae-Ho CHOI, Da-Hyun LIM, Won-Jun CHOI
  • Patent number: 11663968
    Abstract: A display device includes a display panel, an input sensor disposed on the display panel, a panel driving circuit which drives the display panel and generates a first driving voltage, and a readout circuit which controls the input sensor. The readout circuit receives the first driving voltage from the panel driving circuit and outputs transmit signals to control the input sensor.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: May 30, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ara Jo, Woo-Chul Kim, Inbok Song, Kanghee Lee, Deok Jun Choi
  • Publication number: 20230160970
    Abstract: A battery diagnosing technology capable of effectively diagnosing a state of a secondary battery using a charge and discharge signal extracted from the secondary battery, including memory to store a positive electrode reference profile and a negative electrode reference profile for charge or discharge of a reference battery, a voltage sensor to measure a voltage of a target battery during a charge or discharge process, and a processor to generate a plurality of charge and discharge measurement profiles based on voltages measured at a plurality of different time points, compare each of the generated charge and discharge measurement profiles with a simulation profile obtained from the positive and negative electrode reference profiles, and determine positive and negative electrode adjustment profiles for each of the generated charge and discharge measurement profiles so that an error between each charge and discharge measurement profile and the simulation profile is within a predetermined level.
    Type: Application
    Filed: December 3, 2021
    Publication date: May 25, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Soon-Ju Choi, Dae-Soo Kim, Young-Deok Kim, Su-Won Jee, Hyun-Jun Choi
  • Patent number: 11657022
    Abstract: An operating method of a host includes receiving a request for secure deletion of a first file stored in a storage system, providing an invalidation command to the storage system for invalidating data of the first file, providing an erase command to the storage system for erasing invalidated data included in the storage system, and performing a deletion operation, which is executable on an operating system of the host, on the first file which is deleted by the erase command.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: May 23, 2023
    Inventors: Jin-hwan Park, Chan-sol Kim, Myung-jin Jung, Ji-soo Kim, Kyung-ho Kim, Pil-sung Kang, Bong-jun Choi, Chae-won Yu, So-jeong Lee
  • Patent number: 11658351
    Abstract: Disclosed are a wireless battery management system, a node for wireless communication, and a method of assigning slot, which respectively assign dedicated slots having different time intervals to monitor nodes to support smooth and stable communication between the monitor nodes and a manager node. The wireless battery management system includes a manager node checking number of monitor nodes joining in a short-range wireless network for battery management, dividing a transmission slot, assigned for data transmission, by the number of monitor nodes to generate a plurality of dedicated slots, and respectively assigning the plurality of dedicated slots to the monitor nodes and a monitor node collecting battery data and transmitting the collected battery data to the manager node during an assigned dedicated slot.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: May 23, 2023
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Seung Jun Choi, Heung Lyeol Lee, Ju Pyo Hong, Deog Soo Kim, Young Ho Seo
  • Patent number: 11648594
    Abstract: A wafer cleaning apparatus is provided. The wafer cleaning apparatus includes comprising a chamber configured to be loaded with a wafer, a nozzle on the wafer and configured to provide liquid chemicals on an upper surface of the wafer, a housing under the wafer, a laser module configured to irradiate laser on the wafer, a transparent window disposed between the wafer and the laser module, and a controller configured to control on/off of the laser module, wherein the controller is configured to control repetition of turning the laser module on and off, and retain temperature of the wafer within a temperature range, and a ratio of time when the laser module is on in one cycle including on/off of the laser module is 30% to 50%.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: May 16, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Min Shin, Hun Jae Jang, Seok Hoon Kim, Young-Hoo Kim, In Gi Kim, Tae-Hong Kim, Kun Tack Lee, Ji Hoon Cha, Yong Jun Choi
  • Publication number: 20230146645
    Abstract: An image sensor is provided. The image sensor includes a substrate including a plurality of unit pixels, each of unit pixels includes a photoelectric conversion element; a first trench formed in the substrate in a lattice shape to isolate the plurality of unit pixels; a plurality of first capacitor structures extended along a sidewall of the first trench in the first trench, including a first electrode, a second electrode, and a first dielectric layer between the first electrode and the second electrode; and a first capacitor isolation pattern at a lattice point of the first trench to isolate the plurality of first capacitor structures.
    Type: Application
    Filed: August 15, 2022
    Publication date: May 11, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyuk Soon CHOI, Sang-Su PARK, Hee Sung SHIM, Dae Kun AHN, Min-Jun CHOI
  • Patent number: 11646072
    Abstract: An electronic device includes an intelligent refresh control circuit generating an intelligent refresh pulse with a pulse that has a generation period that is adjusted based on the number of generations of an auto refresh signal during an intelligent refresh operation, and an internal refresh signal generation circuit outputting one of a self-refresh pulse including a pulse that is periodically generated by an enable signal during a self-refresh operation and the intelligent refresh pulse as an internal refresh signal.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: May 9, 2023
    Assignee: SK hynix Inc.
    Inventors: Hyun Seung Kim, Ho Uk Song, Tae Kyun Shin, Min Jun Choi, Duck Hwa Hong
  • Publication number: 20230133183
    Abstract: A table includes a tabletop and a leg assembly to support the tabletop. The leg assembly comprises first and second supports movably connected to the tabletop. The first support includes a first bar and the second support includes a second bar. The first and second bars are pivotally connected to the first bar. The leg assembly also includes a mechanism for adjusting a height of the leg assembly. The mechanism includes a first coupling piece disposed at the first bar and a second coupling piece pivotally connected to the second bar. One of the first and second coupling pieces includes multiple positioning slots. The other of the first and second coupling pieces is selectively engageable with any one of the positioning slots. Engagement with different positioning slots changes an angle between the first and second bars and consequently changes the height of the leg assembly.
    Type: Application
    Filed: August 17, 2022
    Publication date: May 4, 2023
    Inventor: Kwan Jun Choi
  • Publication number: 20230119100
    Abstract: An overvoltage characteristics evaluation apparatus for a battery includes a sensing unit to measure a current and a voltage of the battery, and a control unit to determine a measured capacity history and a measured voltage history of the battery during a discharge event executed subsequent to polarization-inducing pretreatment for the battery. The control unit determines a first measured voltage curve indicating a correlation between the measured capacity history and the measured voltage history, and a second measured voltage curve indicating a correlation between a depth of discharge history obtained by normalizing the measured capacity history to a total discharge capacity of the measured capacity history and the measured voltage history. The control unit determines a differential voltage curve by differentiating the measured voltage history.
    Type: Application
    Filed: July 30, 2021
    Publication date: April 20, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyun-Jun Choi, Dae-Soo Kim, Young-Deok Kim, Su-Won Jee
  • Patent number: 11631599
    Abstract: An apparatus is provided. The apparatus includes a spinner configured to hold a wafer, a nozzle configured to supply a liquid chemical onto an upper surface of the wafer, and a laser module configured to heat the wafer by radiating a laser beam to a lower surface of the wafer while the nozzle supplies the liquid chemical onto the upper surface of the wafer.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: April 18, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji Hoon Cha, Jinwoo Lee, Seok Hoon Kim, In Gi Kim, Seung Min Shin, Yong Jun Choi
  • Publication number: 20230114041
    Abstract: A switch apparatus, includes: a base module including a base case, and a moving magnet movably mounted in the base case; and a manipulation module including a manipulation case, and a first magnet fixedly mounted in the manipulation case, wherein the moving magnet moves between a hold position and a releasable position, the hold position refers to a position in which the manipulation module is held onto the base module as an attractive force acts between the moving magnet and the first magnet, and the releasable position refers to a position in which the manipulation module is releasable from the base module as a repulsive force acts between the moving magnet and the first magnet.
    Type: Application
    Filed: June 21, 2022
    Publication date: April 13, 2023
    Applicants: Hyundai Motor Company, Kia Corporation, NOVATECH Co., Ltd., ALPS ELECTRIC KOREA CO., LTD.
    Inventors: Sang Hoon Shin, Hoo Sang Lee, Jong Hyun Choi, Dae Woo Park, Youn Tak Kim, Nam I Jo, Choon Teak Oh, Hong Jun Choi, Kon Hee Chang, Woo Joo Ahn