Patents by Inventor Seung-Jun Choi

Seung-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: 20250071256
    Abstract: The present invention relates to a controller of a camera module capable of simplifying a measurement system and reducing cost by having a frequency response measurement function. A controller of camera module according to an embodiment, in a driving mode, preprocesses an actuator position value signal sensed by a Hall sensor to output to a measurement equipment, a target position value, arithmetic processes a target position value, an actuator position value signal and a disturbance signal supplied from the measurement equipment to output an error value signal to the measurement equipment, and generates an actuator driving signal that compensates for the error value signal to drive an actuator.
    Type: Application
    Filed: December 29, 2022
    Publication date: February 27, 2025
    Applicants: LX SEMICON CO., LTD., LG INNOTEK CO., LTD.
    Inventors: Kyu Ho KIM, Seung Jun CHOI, Jin Kook YUN, Young Seop MOON, Eun Mi KIM
  • Publication number: 20240142182
    Abstract: A heat transfer fin according to an aspect of the present invention includes a fin main body having a plate shape, and a plurality of through-holes defined to pass through the fin main body and spaced apart from each other in a first direction that is a predetermined direction.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 2, 2024
    Applicant: KYUNGDONG NAVIEN CO., LTD.
    Inventors: Seung Jun CHOI, In Chul Jeong, Jun Gil Park
  • Patent number: 11870043
    Abstract: A wireless battery management system, a manager node for the same, and a channel operating method, which operate a channel so as to stably support wireless communication in the wireless battery management system, are provided. The wireless battery management system includes a manager node and a monitor node. The manager node establishes a first network being a short-range wireless network by using at least one of a first channel and a second channel, and when a second network using the same communication channel and modulation method as a communication channel and a modulation method of the first network is detected, changing the first channel to a third channel and changing the second channel to a fourth channel.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: January 9, 2024
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Yong Ju Seon, Heung Lyeol Lee, Seung Jun Choi, Deog Soo Kim, Hee Jin Lee, Jong Chan Kim
  • Patent number: 11800454
    Abstract: The present disclosure relates to a wireless battery management system which ensures stability when obtaining battery data through wireless communication. The battery management system includes a manager node operating a primary channel and a secondary channel based on wireless communication and obtaining battery data from a monitor node by using the primary channel or the secondary channel and a monitor node connected to a battery module to collect battery data including one or more of a current, a voltage, a temperature, and self-diagnosis data of the battery module, transmit the collected battery data to the manager node through the primary channel, and when the transmission of the battery data through the primary channel fails, transmit the battery data to the manager node through the secondary channel.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: October 24, 2023
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Ju Pyo Hong, Ki Suk Cho, Heung Lyeol Lee, Kyu Ho Kim, Seung Jun Choi, Deog Soo Kim, Yong Ju Seon, Hee Jin Lee, Young Ho Seo, Jong Chan Kim
  • Publication number: 20230311179
    Abstract: A perforation device is disclosed. The perforation device perforating a battery module includes a loading unit configured to convey and load the battery module in a longitudinal direction, a fixing unit configured to fix the battery module, and a perforation unit configured to approach the battery module and perforate the battery module. When the perforation unit approaches the battery module, the fixing unit contacts the battery module on an opposite side of the perforation unit with respect to the battery module and suppresses a movement of the battery module.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 5, 2023
    Inventors: Soo Yong JEON, Jeong Hee YOO, Seung Jun CHOI
  • 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
  • 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: 11474491
    Abstract: Disclosed are a communication method between a master controller and slave controllers, a slave controller for the communication method, and a battery management system using the communication method and the slave controller, in which the master controller receives safety information about battery cells through a plurality of channels even when each of a plurality of slave controllers includes only one micro controller unit, thereby minimizing the increase in the cost and enhancing the safety of the battery management system. The communication method includes performing bidirectional communication between a master controller and first to Nth (where N is an integer equal to or more than two) slave controllers through a first communication channel, and receiving, by the master controller, an indication signal through a second communication signal via the first to Nth slave controllers.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: October 18, 2022
    Assignees: SILICON WORKS CO., LTD., LG ENERGY SOLUTION, LTD.
    Inventors: Myoung Su Song, Jae Wan Kim, Jin Yong Jeon, Ki Suk Cho, Il Kwon Kim, Seung Jun Choi, Kyu Ho Kim, Kyoung Choon Min, Ki Young Lee, Won Gon Kim
  • Publication number: 20220240190
    Abstract: The present disclosure relates to a wireless battery management system which ensures stability when obtaining battery data through wireless communication. The battery management system includes a manager node operating a primary channel and a secondary channel based on wireless communication and obtaining battery data from a monitor node by using the primary channel or the secondary channel and a monitor node connected to a battery module to collect battery data including one or more of a current, a voltage, a temperature, and self-diagnosis data of the battery module, transmit the collected battery data to the manager node through the primary channel, and when the transmission of the battery data through the primary channel fails, transmit the battery data to the manager node through the secondary channel.
    Type: Application
    Filed: April 19, 2022
    Publication date: July 28, 2022
    Inventors: Ju Pyo HONG, Ki Suk CHO, Heung Lyeol LEE, Kyu Ho KIM, Seung Jun CHOI, Deog Soo KIM, Yong Ju SEON, Hee Jin LEE, Young Ho SEO, Jong Chan KIM
  • Patent number: 11337156
    Abstract: The present disclosure relates to a wireless battery management system which ensures stability when obtaining battery data through wireless communication. The battery management system includes a manager node operating a primary channel and a secondary channel based on wireless communication and obtaining battery data from a monitor node by using the primary channel or the secondary channel and a monitor node connected to a battery module to collect battery data including one or more of a current, a voltage, a temperature, and self-diagnosis data of the battery module, transmit the collected battery data to the manager node through the primary channel, and when the transmission of the battery data through the primary channel fails, transmit the battery data to the manager node through the secondary channel.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: May 17, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Ju Pyo Hong, Ki Suk Cho, Heung Lyeol Lee, Kyu Ho Kim, Seung Jun Choi, Deog Soo Kim, Yong Ju Seon, Hee Jin Lee, Young Ho Seo, Jong Chan Kim
  • Publication number: 20210109492
    Abstract: Disclosed are a communication method between a master controller and slave controllers, a slave controller for the communication method, and a battery management system using the communication method and the slave controller, in which the master controller receives safety information about battery cells through a plurality of channels even when each of a plurality of slave controllers includes only one micro controller unit, thereby minimizing the increase in the cost and enhancing the safety of the battery management system. The communication method includes performing bidirectional communication between a master controller and first to Nth (where N is an integer equal to or more than two) slave controllers through a first communication channel, and receiving, by the master controller, an indication signal through a second communication signal via the first to Nth slave controllers.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Inventors: Myoung Su Song, Jae Wan Kim, Jin Yong Jeon, Ki Suk Cho, Il Kwon Kim, Seung Jun Choi, Kyu Ho Kim, Kyoung Choon Min, Ki Young Lee, Won Gon Kim
  • Publication number: 20210066763
    Abstract: A wireless battery management system, a manager node for the same, and a channel operating method, which operate a channel so as to stably support wireless communication in the wireless battery management system, are provided. The wireless battery management system includes a manager node and a monitor node. The manager node establishes a first network being a short-range wireless network by using at least one of a first channel and a second channel, and when a second network using the same communication channel and modulation method as a communication channel and a modulation method of the first network is detected, changing the first channel to a third channel and changing the second channel to a fourth channel.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 4, 2021
    Inventors: Yong Ju SEON, Heung Lyeol LEE, Seung Jun CHOI, Deog Soo KIM, Hee Jin LEE, Jong Chan KIM
  • Publication number: 20210043983
    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: Application
    Filed: July 31, 2020
    Publication date: February 11, 2021
    Inventors: Seung Jun CHOI, Heung Lyeol LEE, Ju Pyo HONG, Deog Soo KIM, Young Ho SEO
  • Patent number: 10915080
    Abstract: Disclosed are a communication method between a master controller and slave controllers, a slave controller for the communication method, and a battery management system using the communication method and the slave controller, in which the master controller receives safety information about battery cells through a plurality of channels even when each of a plurality of slave controllers includes only one micro controller unit, thereby minimizing the increase in the cost and enhancing the safety of the battery management system. The communication method includes performing bidirectional communication between a master controller and first to Nth (where N is an integer equal to or more than two) slave controllers through a first communication channel, and receiving, by the master controller, an indication signal through a second communication signal via the first to Nth slave controllers.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: February 9, 2021
    Assignees: SILICON WORKS CO., LTD., LG CHEM, LTD.
    Inventors: Myoung Su Song, Jae Wan Kim, Jin Yong Jeon, Ki Suk Cho, Il Kwon Kim, Seung Jun Choi, Kyu Ho Kim, Kyoung Choon Min, Ki Young Lee, Won Gon Kim
  • Publication number: 20200396688
    Abstract: The present disclosure relates to a wireless battery management system which ensures stability when obtaining battery data through wireless communication. The battery management system includes a manager node operating a primary channel and a secondary channel based on wireless communication and obtaining battery data from a monitor node by using the primary channel or the secondary channel and a monitor node connected to a battery module to collect battery data including one or more of a current, a voltage, a temperature, and self-diagnosis data of the battery module, transmit the collected battery data to the manager node through the primary channel, and when the transmission of the battery data through the primary channel fails, transmit the battery data to the manager node through the secondary channel.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 17, 2020
    Inventors: Ju Pyo HONG, Ki Suk CHO, Heung Lyeol LEE, Kyu Ho KIM, Seung Jun CHOI, Deog Soo KIM, Yong Ju SEON, Hee Jin LEE, Young Ho SEO, Jong Chan KIM
  • Patent number: 10283778
    Abstract: A copper foil for a current collector of a lithium secondary battery has a crystalline structure, in which a ratio of the sum of texture coefficients of a (111) surface and a (200) surface to the total sum of texture coefficients of the (111), (200) and (220) surfaces is 60 to 85%, a ratio of the texture coefficient of the (111) surface to the total sum of texture coefficients of the (111), (200) and (220) is 18 to 38%, a ratio of the texture coefficient of the (200) surface thereto is 28 to 62%, and a ratio of the texture coefficient of the (220) surface thereto is 15 to 40%. The copper foil has surface roughness (Rz-JIS) of 2 mum or less, weight deviation of 3% or less, tensile strength of 30 to 40 kgf/mm2, elongation of 3 to 20%, and thickness of 1 to 35 mum.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: May 7, 2019
    Assignee: KCF TECHNOLOGIES CO., LTD.
    Inventors: Dae-Young Kim, Byoung-Kwang Lee, Seung-Jun Choi
  • Publication number: 20190129369
    Abstract: Disclosed are a communication method between a master controller and slave controllers, a slave controller for the communication method, and a battery management system using the communication method and the slave controller, in which the master controller receives safety information about battery cells through a plurality of channels even when each of a plurality of slave controllers includes only one micro controller unit, thereby minimizing the increase in the cost and enhancing the safety of the battery management system. The communication method includes performing bidirectional communication between a master controller and first to Nth (where N is an integer equal to or more than two) slave controllers through a first communication channel, and receiving, by the master controller, an indication signal through a second communication signal via the first to Nth slave controllers.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 2, 2019
    Inventors: Myoung Su SONG, Jae Wan KIM, Jin Yong JEON, Ki Suk CHO, Il Kwon KIM, Seung Jun CHOI, Kyu Ho KIM, Kyoung Choon MIN, Ki Young LEE, Won Gon KIM
  • Publication number: 20170005339
    Abstract: A copper foil for a current collector of a lithium secondary battery is configured such that a nodule cluster having an inter-nodule aspect ratio of 0.001 to 2 is provided at a matte side formed on one surface of the copper foil, in aspect of a crystal structure, a ratio of a texture coefficient of a (200) surface to a sum of texture coefficients of a (111) surface and the (200) surface is 30 to 80%, the copper foil has a water contact angle of 90 DEG or below, and impurity spots existing at the surface of the copper foil have a maximum diameter of 100 [mu]m or less, and a minimal spacing distance between the impurity spots is 1 cm or more.
    Type: Application
    Filed: September 16, 2016
    Publication date: January 5, 2017
    Inventors: Dae-Young KIM, Byoung-Kwang LEE, Seung-Jun CHOI
  • Publication number: 20160372756
    Abstract: A copper foil for a current collector of a lithium secondary battery has a crystalline structure, in which a ratio of the sum of texture coefficients of a (111) surface and a (200) surface to the total sum of texture coefficients of the (111), (200) and (220) surfaces is 60 to 85%, a ratio of the texture coefficient of the (111) surface to the total sum of texture coefficients of the (111), (200) and (220) is 18 to 38%, a ratio of the texture coefficient of the (200) surface thereto is 28 to 62%, and a ratio of the texture coefficient of the (220) surface thereto is 15 to 40%. The copper foil has surface roughness (Rz-JIS) of 2 mum or less, weight deviation of 3% or less, tensile strength of 30 to 40 kgf/mm2, elongation of 3 to 20%, and thickness of 1 to 35 mum.
    Type: Application
    Filed: September 2, 2016
    Publication date: December 22, 2016
    Inventors: Dae-Young KIM, Byoung-Kwang LEE, Seung-Jun CHOI
  • Patent number: 9457541
    Abstract: A copper foil for a current collector of a lithium secondary battery has a crystalline structure, in which a ratio of the sum of texture coefficients of a (111) surface and a (200) surface to the total sum of texture coefficients of the (111), (200) and (220) surfaces is 60 to 85%, a ratio of the texture coefficient of the (111) surface to the total sum of texture coefficients of the (111), (200) and (220) is 18 to 38%, a ratio of the texture coefficient of the (200) surface thereto is 28 to 62%, and a ratio of the texture coefficient of the (220) surface thereto is 15 to 40%. The copper foil has surface roughness (Rz-JIS) of 2 ?m or less, weight deviation of 3% or less, tensile strength of 30 to 40 kgf/mm2, elongation of 3 to 20%, and thickness of 1 to 35 ?m.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: October 4, 2016
    Assignee: LS MTRON LTD.
    Inventors: Dae-Young Kim, Byoung-Kwang Lee, Seung-Jun Choi