Patents by Inventor Hyun-Jun Choi

Hyun-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).

  • Patent number: 12295073
    Abstract: The present disclosure is to implement a technique (scheme) of guaranteeing the mobility of an application server that enables a user equipment (UE) to seamlessly use a data service in real time even when the application server is changed.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: May 6, 2025
    Assignee: SK TELECOM CO., LTD.
    Inventors: Dong Jin Lee, Seong Jun Lee, Hyun Jun Choi
  • Publication number: 20250071537
    Abstract: A server according to an embodiment can collect mobility data of user terminals and group the user terminals into clusters based on the similarity the similarity of the mobility data. The server applies identification information of the clusters to which the grouped user terminals belong and previous movement paths of the grouped user terminals to a neural network-based prediction model, thus making it possible to train a prediction model to predict a base station serving moving locations of the user terminals belonging to each cluster.
    Type: Application
    Filed: November 8, 2024
    Publication date: February 27, 2025
    Inventors: Bokkeun KIM, Hyun Seung CHOO, Joong Gunn PARK, Hyun Jun CHOI, Dong Jin LEE
  • Publication number: 20250071731
    Abstract: In a method for operating data analysis devices, including first data analysis devices distributed in a network and a centralized second data analysis device, according to an embodiment, the first data analysis devices collects mobility data of a user terminal from mobility management devices in the network, the second data analysis device preprocesses the mobility data, the second data analysis device applies the preprocessed mobility data to a prediction model based on a neural network and trains the prediction model to predict base stations serving a target location to which the user terminal is predicted to move by the prediction model, and the trained prediction model and identification information about the user terminal can be transferred to the first data analysis devices.
    Type: Application
    Filed: November 8, 2024
    Publication date: February 27, 2025
    Inventors: Bokkeun KIM, Hyun Seung CHOO, Dong Jin LEE, Hyun Jun CHOI, Joong Gunn PARK
  • Patent number: 12206271
    Abstract: A battery charge and discharge control device according to an embodiment of the present disclosure includes a state-of-charge (SOC) measurer measuring a SOC of a battery and a charge and discharge controller controlling a charging speed of the battery in response to the SOC of the battery being included in a preset SOC section, and the preset SOC section has change in resistance or a change in potential due to ions inserted into a material constituting the battery equal to or greater than a reference value.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: January 21, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Young Deok Kim, Dae Soo Kim, Hyun Jun Choi
  • Publication number: 20240402259
    Abstract: Disclosed is 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.
    Type: Application
    Filed: August 13, 2024
    Publication date: December 5, 2024
    Inventors: Soon-Ju Choi, Dae-Soo Kim, Young-Deok Kim, Su-Won Jee, Hyun-Jun Choi
  • Publication number: 20240377472
    Abstract: A secondary battery diagnosing technology capable of effectively diagnosing a state of a secondary battery using a charge and discharge signal of the secondary battery, including a memory unit configured to store a positive electrode reference profile and a negative electrode reference profile for charge or discharge of a reference battery, a voltage measuring unit configured to measure a voltage of a target battery during a charge or discharge process, and a processor configured to generate a charge and discharge measurement profile based on the voltage, compare a simulation profile obtained from the positive electrode reference profile and the negative electrode reference profile with the generated charge and discharge measurement profile, and determine a positive electrode adjustment profile and a negative electrode adjustment profile so that an error between the simulation profile and the charge and discharge measurement profile is within a predetermined level.
    Type: Application
    Filed: July 23, 2024
    Publication date: November 14, 2024
    Inventors: Soon-Ju CHOI, Dae-Soo Kim, Young-Deok Kim, Su-Won Jee, Hyun-Jun Choi
  • Patent number: 12085623
    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: Grant
    Filed: December 3, 2021
    Date of Patent: September 10, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Soon-Ju Choi, Dae-Soo Kim, Young-Deok Kim, Su-Won Jee, Hyun-Jun Choi
  • Patent number: 12066496
    Abstract: A secondary battery diagnosing technology capable of effectively diagnosing a state of a secondary battery using a charge and discharge signal of the secondary battery, including a memory unit configured to store a positive electrode reference profile and a negative electrode reference profile for charge or discharge of a reference battery, a voltage measuring unit configured to measure a voltage of a target battery during a charge or discharge process, and a processor configured to generate a charge and discharge measurement profile based on the voltage, compare a simulation profile obtained from the positive electrode reference profile and the negative electrode reference profile with the generated charge and discharge measurement profile, and determine a positive electrode adjustment profile and a negative electrode adjustment profile so that an error between the simulation profile and the charge and discharge measurement profile is within a predetermined level.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: August 20, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Soon-Ju Choi, Dae-Soo Kim, Young-Deok Kim, Su-Won Jee, Hyun-Jun Choi
  • Patent number: 12044744
    Abstract: An apparatus and method for diagnosing a state of a battery in various aspects based on a differential profile respectively obtained in a situation where the battery is charged and discharged. Since the state of the battery is diagnosed by considering both the first differential profile related to the charging of the battery and the second differential profile related to the discharging of the battery, there is an advantage of diagnosing the state of the battery more accurately.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: July 23, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Hyun-Jun Choi, Young-Deok Kim, Dae-Soo Kim, Su-Won Jee
  • Patent number: 12025671
    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: Grant
    Filed: July 30, 2021
    Date of Patent: July 2, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Hyun-Jun Choi, Dae-Soo Kim, Young-Deok Kim, Su-Won Jee
  • Publication number: 20230413210
    Abstract: The present disclosure suggests a scheme of uniformly embodying the functions of all equipment (RAN, core) including an RAN in addition to the core of 5G as NFs via realization of a detailed technique that evolves the function of RAN equipment to a 5G architecture and embodies the same as an NF.
    Type: Application
    Filed: October 7, 2021
    Publication date: December 21, 2023
    Inventors: Dong Jin LEE, Seong Jun LEE, Hyun Jun CHOI
  • Publication number: 20230333174
    Abstract: An apparatus and method for diagnosing a state of a battery in various aspects based on a differential profile respectively obtained in a situation where the battery is charged and discharged. Since the state of the battery is diagnosed by considering both the first differential profile related to the charging of the battery and the second differential profile related to the discharging of the battery, there is an advantage of diagnosing the state of the battery more accurately.
    Type: Application
    Filed: April 29, 2021
    Publication date: October 19, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyun-Jun Choi, Young-Deok Kim, Dae-Soo Kim, Su-Won Jee
  • Publication number: 20230290997
    Abstract: Provided is a casing for a lithium metal secondary battery including: a battery casing material; at least one releasable capsule attached at least partially or totally to the inner surface of the casing material to cover the inner surface of the casing material; and a release solution supported in the releasable capsule, wherein the releasable capsule includes a capsule coating film and a capsule inner space surrounded with the capsule coating film, the release solution is supported in the capsule inner space, and the release solution includes a release agent and a solvent. A lithium metal secondary battery including the casing and a method for manufacturing the same are also provided. It is possible to increase releasability of the negative electrode in a lithium metal secondary battery and to improve nail safety by using the releasable capsule according to the present disclosure.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 14, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Hyun-Woong YUN, Jong-Keon YOON, Hyun-Jun CHOI
  • Publication number: 20230269575
    Abstract: The present disclosure is to implement a technique (scheme) of guaranteeing the mobility of an application server that enables a user equipment (UE) to seamlessly use a data service in real time even when the application server is changed.
    Type: Application
    Filed: June 29, 2021
    Publication date: August 24, 2023
    Inventors: Dong Jin LEE, Seong Jun LEE, Hyun Jun CHOI
  • Publication number: 20230236262
    Abstract: A secondary battery diagnosing technology capable of effectively diagnosing a state of a secondary battery using a charge and discharge signal of the secondary battery, including a memory unit configured to store a positive electrode reference profile and a negative electrode reference profile for charge or discharge of a reference battery, a voltage measuring unit configured to measure a voltage of a target battery during a charge or discharge process, and a processor configured to generate a charge and discharge measurement profile based on the voltage, compare a simulation profile obtained from the positive electrode reference profile and the negative electrode reference profile with the generated charge and discharge measurement profile, and determine a positive electrode adjustment profile and a negative electrode adjustment profile so that an error between the simulation profile and the charge and discharge measurement profile is within a predetermined level.
    Type: Application
    Filed: December 3, 2021
    Publication date: July 27, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Soon-Ju Choi, Dae-Soo Kim, Young-Deok Kim, Su-Won Jee, Hyun-Jun Choi
  • Patent number: 11695151
    Abstract: Provided is a casing for a lithium metal secondary battery including: a battery casing material; at least one releasable capsule attached at least partially or totally to the inner surface of the casing material to cover the inner surface of the casing material; and a release solution supported in the releasable capsule, wherein the releasable capsule includes a capsule coating film and a capsule inner space surrounded with the capsule coating film, the release solution is supported in the capsule inner space, and the release solution includes a release agent and a solvent. A lithium metal secondary battery including the casing and a method for manufacturing the same are also provided. It is possible to increase releasability of the negative electrode in a lithium metal secondary battery and to improve nail safety by using the releasable capsule according to the present disclosure.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: July 4, 2023
    Assignee: LG Energy Solution, Ltd.
    Inventors: Hyun-Woong Yun, Jong-Keon Yoon, Hyun-Jun Choi
  • 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
  • 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: 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
  • 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