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).

  • Publication number: 20250227461
    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: March 28, 2025
    Publication date: July 10, 2025
    Inventors: Dong Jin LEE, Seong Jun LEE, Hyun Jun CHOI
  • Publication number: 20250208221
    Abstract: A battery management apparatus according to one embodiment of the present disclosure includes a storage unit configured to store battery information including a voltage and current, and a control unit configured to calculate a capacity ratio of a battery for each of a plurality of voltage ranges based on the battery information, to compare the calculated capacity ratio for each of the plurality of voltage ranges with a preset reference capacity ratio, and to determine a state of the battery based on a comparison result.
    Type: Application
    Filed: December 20, 2024
    Publication date: June 26, 2025
    Inventors: Hyun-Jun CHOI, Dae-Soo KIM, Young-Deok KIM
  • Publication number: 20250208229
    Abstract: A battery diagnostic apparatus includes: a data acquisition unit configured to acquire capacity-voltage relationship data of a battery cell; and a processor configured to generate a voltage profile and a differential voltage profile of the battery based on the capacity-voltage relationship data. The processor is configured to extract a first interest profile from the voltage profile based on a characteristic point of the differential voltage profile, determine a characteristic slope associated with the first interest profile, and diagnose a degradation state of the battery cell based on the characteristic slope.
    Type: Application
    Filed: December 23, 2024
    Publication date: June 26, 2025
    Inventors: Tae-Hyeon KIM, Young-Deok KIM, Ji-Yeon KIM, Hyun-jun CHOI
  • Publication number: 20250201946
    Abstract: Disclosed is a battery diagnosing apparatus and a battery diagnosing method. The battery diagnosing apparatus includes a data obtaining unit configured to obtain a first profile representing a capacity-voltage relationship of a battery cell containing an active material with a multi-phase characteristic, and a processor configured to generate a plurality of comparison profiles based on a plurality of electrode profiles included in an electrode profile map. The processor is configured to select, as a second profile, one comparison profile from the plurality of comparison profiles by comparing each of the plurality of comparison profiles with the first profile, and determine at least one diagnostic factor representing a degradation state of the battery cell based on the second profile.
    Type: Application
    Filed: May 10, 2024
    Publication date: June 19, 2025
    Inventors: Hyun-Jun CHOI, Young-Deok KIM, Tae-Hyeon KIM
  • Publication number: 20250158014
    Abstract: An electrode plate for a secondary battery includes: a substrate that is a film-shaped or thin metal foil; an active material layer on at least one side of the substrate; an uncoated portion on one side along the longitudinal direction of the substrate and having no active material layer formed therein; and an auxiliary uncoated portion on the other side along the longitudinal direction of the substrate and having no active material layer formed therein.
    Type: Application
    Filed: April 19, 2024
    Publication date: May 15, 2025
    Inventors: Joong Yong PARK, Jea Woan LEE, Hyun Jun CHOI
  • 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: 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
  • 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
  • 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