Patents by Inventor Joon-Sung Park

Joon-Sung Park 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: 11669867
    Abstract: A mobile terminal including: a memory having a plurality of applications stored therein; an application management module configured to receive application information corresponding to the respective applications, and generate status information of the applications, corresponding to the application information; and a controller configured to determine execution history information of the applications through the status information provided from the application management module, wherein the application management module includes: an application information collection unit configured to collect cache data size information of the respective applications at preset time intervals; and a comparison unit configured to generate the status information of the applications by comparing the cache data size information of the applications, collected by the application information collection unit, to reference values corresponding to the respective applications.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: June 6, 2023
    Assignee: NHN Corporation
    Inventors: Daebeom Lee, Joon Sung Park, Joon Ho Lee, Donghun Kwon, Jun Sung Kim
  • Patent number: 11639860
    Abstract: This application relates to an absolute position detection device and detection method of a rotating body using a magnetic material. The device may include magnets coupled to a rotating body and configured to rotate together and having n pole pairs, wherein n is a natural number and (n+1) magnetic materials arranged adjacent to the magnets, spaced apart from each other by a predetermined interval, and configured to rotate together with the rotating body. The device may also include a first Hall sensor spaced apart from the magnets, installed to allow the magnetic materials to rotate in a space between the first Hall sensor and the magnets and configured to output a first signal based on the magnets when the magnetic materials approach the first Hall sensor. The device may further include a controller configured to measure an absolute position of the rotating body using the first signal.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: May 2, 2023
    Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Jun Hyuk Choi, Joon Sung Park, Jin Hong Kim, Byong Jo Hyon, Yong Su Noh, Dong Myoung Joo
  • Patent number: 11512980
    Abstract: This application relates to an absolute position detection device and detection method of a rotating body. In one aspect, the device includes first row magnets coupled to a rotating body to rotate together and having n pole pairs, and second row magnets coupled to the rotating body to rotate together and having (n+1) pole pairs. The device also includes a first Hall sensor installed adjacent to the first row magnets and configured to detect a change in magnetism according to rotation of the first row magnets. The device further includes a second Hall sensor installed adjacent to the second row magnets and configured to detect a change in magnetism according to rotation of the second row magnets. The device further includes a controller configured to measure an absolute position of the rotating body using signals output from the first and second Hall sensors.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: November 29, 2022
    Assignee: Korea Electronics Technology Institute
    Inventors: Jun Hyuk Choi, Joon Sung Park, Jin Hong Kim, Byong Jo Hyon, Yong Su Noh, Dong Myoung Joo
  • Publication number: 20220018684
    Abstract: This application relates to an absolute position detection device and detection method of a rotating body. In one aspect, the device includes first row magnets coupled to a rotating body to rotate together and having n pole pairs, and second row magnets coupled to the rotating body to rotate together and having (n+1) pole pairs. The device also includes a first Hall sensor installed adjacent to the first row magnets and configured to detect a change in magnetism according to rotation of the first row magnets. The device further includes a second Hall sensor installed adjacent to the second row magnets and configured to detect a change in magnetism according to rotation of the second row magnets. The device further includes a controller configured to measure an absolute position of the rotating body using signals output from the first and second Hall sensors.
    Type: Application
    Filed: December 29, 2020
    Publication date: January 20, 2022
    Inventors: Jun Hyuk CHOI, Joon Sung PARK, Jin Hong KIM, Byong Jo HYON, Yong Su NOH, Dong Myoung JOO
  • Publication number: 20220018685
    Abstract: This application relates to an absolute position detection device and detection method of a rotating body using a magnetic material. The device may include magnets coupled to a rotating body and configured to rotate together and having n pole pairs, wherein n is a natural number and (n+1) magnetic materials arranged adjacent to the magnets, spaced apart from each other by a predetermined interval, and configured to rotate together with the rotating body. The device may also include a first Hall sensor spaced apart from the magnets, installed to allow the magnetic materials to rotate in a space between the first Hall sensor and the magnets and configured to output a first signal based on the magnets when the magnetic materials approach the first Hall sensor. The device may further include a controller configured to measure an absolute position of the rotating body using the first signal.
    Type: Application
    Filed: December 29, 2020
    Publication date: January 20, 2022
    Inventors: Jun Hyuk CHOI, Joon Sung PARK, Jin Hong KIM, Byong Jo HYON, Yong Su NOH, Dong Myoung JOO
  • Patent number: 11193515
    Abstract: It is a technical object of the present invention to provide a boot clamping structure for a constant velocity joint that can securely fasten a clamp and a boot so that the clamp and the boot do not run against each other. To this end, the boot clamping structure for a constant velocity joint of the present invention is a boot clamping structure for a constant velocity joint for fastening both ends of a boot using a clamp, and includes a main pressing portion that is provided to be protruded in a first direction toward the boot on an inner circumferential surface of the clamp.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: December 7, 2021
    Assignee: ERAE AMS CO., LTD.
    Inventors: Jung Su Noh, Joon Sung Park
  • Patent number: 10790750
    Abstract: The present disclosure provides an isolated DC-DC converter and a driving method thereof. The isolated DC-DC converter includes: a switching unit connected to terminals of a power supply, comprising three pairs of switches connected in parallel, and configured to switch on and off the three pairs of switches; a transformer unit comprising a first through third transformers, each having a primary winding connected to the switching unit and a secondary winding that are wound in a predetermined turns ratio and transforming a voltage applied to the primary winding according to the turns ratio; a post-processing unit connected to the secondary winding of each of the first through third transformers and configured to rectify and filter a voltage induced in the secondary winding to generate and output an output voltage; and a control unit connected to the switching unit and configured to control switching operation of the switching unit by providing the switching unit with carriers and reference voltages.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: September 29, 2020
    Assignee: Korea Electronics Technology Institute
    Inventors: Jin-Hong Kim, Joon-Sung Park, Jun-Hyuk Choi, Byong-Jo Hyon, Yong-Su Noh
  • Publication number: 20200284278
    Abstract: It is a technical object of the present invention to provide a boot clamping structure for a constant velocity joint that can securely fasten a clamp and a boot so that the clamp and the boot do not run against each other. To this end, the boot clamping structure for a constant velocity joint of the present invention is a boot clamping structure for a constant velocity joint for fastening both ends of a boot using a clamp, and includes a main pressing portion that is provided to be protruded in a first direction toward the boot on an inner circumferential surface of the clamp.
    Type: Application
    Filed: September 13, 2018
    Publication date: September 10, 2020
    Applicant: ERAE AMS CO., LTD.
    Inventors: Jung Su NOH, Joon Sung PARK
  • Patent number: 10646547
    Abstract: A polypeptide having chemokine activity mediated by binding to C-C chemokine receptor type 3 (CCR3) comprising SEQ ID NO: 1 and uses thereof are described.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: May 12, 2020
    Assignee: MEDICINAL BIOCONVERGENCE RESEARCH CENTER
    Inventors: Sunghoon Kim, Min Chul Park, Byung Woo Han, Joon-Sung Park
  • Publication number: 20190220901
    Abstract: A mobile terminal including: a memory having a plurality of applications stored therein; an application management module configured to receive application information corresponding to the respective applications, and generate status information of the applications, corresponding to the application information; and a controller configured to determine execution history information of the applications through the status information provided from the application management module, wherein the application management module includes: an application information collection unit configured to collect cache data size information of the respective applications at preset time intervals; and a comparison unit configured to generate the status information of the applications by comparing the cache data size information of the applications, collected by the application information collection unit, to reference values corresponding to the respective applications.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 18, 2019
    Inventors: Daebeom LEE, Joon Sung PARK, Joon Ho LEE, Donghun KWON, Jun Sung KIM
  • Publication number: 20190068060
    Abstract: The present disclosure provides an isolated DC-DC converter and a driving method thereof. The isolated DC-DC converter includes: a switching unit connected to terminals of a power supply, comprising three pairs of switches connected in parallel, and configured to switch on and off the three pairs of switches; a transformer unit comprising a first through third transformers, each having a primary winding connected to the switching unit and a secondary winding that are wound in a predetermined turns ratio and transforming a voltage applied to the primary winding according to the turns ratio; a post-processing unit connected to the secondary winding of each of the first through third transformers and configured to rectify and filter a voltage induced in the secondary winding to generate and output an output voltage; and a control unit connected to the switching unit and configured to control switching operation of the switching unit by providing the switching unit with carriers and reference voltages.
    Type: Application
    Filed: August 30, 2018
    Publication date: February 28, 2019
    Applicant: Korea Electronics Technology Institute
    Inventors: Jin-Hong KIM, Joon-Sung PARK, Jun-Hyuk CHOI, Byong-Jo HYON
  • Publication number: 20180221448
    Abstract: The present invention relates to a novel polypeptide having chemokine activity and, more specifically, to a polypeptide composed of the amino acid sequence represented by SEQ ID NO: 1 and a use thereof. The polypeptide of the present invention is composed of SEQ ID NO: 1 and exhibits chemokine activity through the binding with CCR3, and thus, the polypeptide has a high utilization effect for various purposes, such as immunoregulation, and diagnosis, treatment, and medicine development for CCR3-mediated diseases or disease symptoms.
    Type: Application
    Filed: July 13, 2016
    Publication date: August 9, 2018
    Inventors: Sunghoon KIM, Min Chul PARK, Byung Woo HAN, Joon-Sung PARK
  • Patent number: 9829392
    Abstract: The present disclosure relates to an apparatus and method for estimating a temperature of a motor using a Hall sensor. The method includes detecting, at a digital Hall sensor, a position of a rotor included in a motor and outputting an on signal in an operating period and an off signal in a release period according to a relative position of the rotor, calculating, at a temperature determining module, a difference between duration of the operating period and duration of the release period according to an output waveform of the digital Hall sensor, and then determining, at the temperature determining module, a temperature of the motor with reference to a temperature corresponding to the duration difference. Accordingly, it is possible to estimate the internal temperature of a motor without installing a temperature sensor in the motor, to maintain a small size of the motor, and to reduce production costs.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: November 28, 2017
    Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Joon Sung Park, Se Hyun Rhyu, In Soung Jung, Jun Hyuk Choi, Bon Gwan Gu, Jin Hong Kim
  • Patent number: 9634492
    Abstract: Provided are a power generation method and system of a power generator that can allow an output power of the power generator to be constant and cope with a case in which the velocity of a power generation source changes very quickly at a low lost. The power generation method includes determining a reference total power intended to be generated by a plurality of power generators, calculating a current command value through the reference total power and an instantaneous velocity sensed by each of the plurality of power generators, and regulating an output current of the power generator using the calculated current command value such that a total power output by the plurality of power generators is approximate to the reference total power.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: April 25, 2017
    Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Joon Sung Park, Jin Hong Kim, Jun Hyuk Choi, In Soung Jung
  • Publication number: 20150270715
    Abstract: Provided are a power generation method and system of a power generator that can allow an output power of the power generator to be constant and cope with a case in which the velocity of a power generation source changes very quickly at a low lost. The power generation method includes determining a reference total power intended to be generated by a plurality of power generators, calculating a current command value through the reference total power and an instantaneous velocity sensed by each of the plurality of power generators, and regulating an output current of the power generator using the calculated current command value such that a total power output by the plurality of power generators is approximate to the reference total power.
    Type: Application
    Filed: May 13, 2014
    Publication date: September 24, 2015
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Joon Sung Park, Jin Hong Kim, Jun Hyuk Choi, In Soung Jung
  • Patent number: 8947028
    Abstract: Disclosed are a method and system for detecting a fault of a parallel coil type permanent magnet motor. This method includes driving a parallel coil type motor on the basis of a pre-defined current reference value, detecting a phase current vector of the motor, and calculating a current compensation value for removing a negative sequence component of the motor on the basis of the phase current vector.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 3, 2015
    Assignee: Korea Electronics Technology Institute
    Inventors: Bon Gwan Gu, In Soung Jung, Jun Hyuk Choi, Joon Sung Park, Jin Hong Kim
  • Publication number: 20150022696
    Abstract: An electronic device including a camera module that operates intuitively and an operating method thereof are provided. In a method for operating an electronic device, a rotation event of a zoom ring is detected for a predetermined time. A zoom speed of a barrel is determined in response to the detected rotation event. A zoom-in function or a zoom-out function is performed with the determined zoom speed.
    Type: Application
    Filed: July 16, 2014
    Publication date: January 22, 2015
    Inventor: Joon-Sung Park
  • Publication number: 20140369385
    Abstract: The present disclosure relates to an apparatus and method for estimating a temperature of a motor using a Hall sensor. The method includes detecting, at a digital Hall sensor, a position of a rotor included in a motor and outputting an on signal in an operating period and an off signal in a release period according to a relative position of the rotor, calculating, at a temperature determining module, a difference between duration of the operating period and duration of the release period according to an output waveform of the digital Hall sensor, and then determining, at the temperature determining module, a temperature of the motor with reference to a temperature corresponding to the duration difference. Accordingly, it is possible to estimate the internal temperature of a motor without installing a temperature sensor in the motor, to maintain a small size of the motor, and to reduce production costs.
    Type: Application
    Filed: April 4, 2014
    Publication date: December 18, 2014
    Applicant: Korea Electronics Technology Institute
    Inventors: Joon Sung PARK, Se Hyun Rhyu, In Soung Jung, Jun Hyuk Choi, Bon Gwan Gu, Jin Hong Kim
  • Patent number: 8913353
    Abstract: A method and system for detecting a fault of a serial coil type permanent magnet motor includes driving the motor based on a predefined current reference value, detecting a phase current vector of the motor, and calculating a current compensation value for removing a negative sequence component of the motor based on the phase current vector. The current compensation value is provided to a negative sequence current controller for calculating a faulty phase and a degree of a fault of the motor using the output of the negative sequence current controller and a fault model to which induced magnetic flux variations in a specific slot of a specific faulty phase of the motor and other slots of the same phase as the specific phase are applied, and applying a current reference value to which the calculated faulty phase and degree of fault are applied.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: December 16, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Bon Gwan Gu, Jun Hyuk Choi, In Soung Jung, Joon Sung Park, Jin Hong Kim
  • Publication number: 20140159621
    Abstract: Disclosed are a method and system for detecting a fault of a parallel coil type permanent magnet motor. This method includes driving a parallel coil type motor on the basis of a pre-defined current reference value, detecting a phase current vector of the motor, and calculating a current compensation value for removing a negative sequence component of the motor on the basis of the phase current vector.
    Type: Application
    Filed: March 18, 2013
    Publication date: June 12, 2014
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Bon Gwan GU, In Soung Jung, Jun Hyuk Choi, Joon Sung Park, Jin Hong Kim