Patents by Inventor Kyoung-Min An

Kyoung-Min An 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: 11404955
    Abstract: A method for controlling a fault of a three phase four wire interlinking converter system according to one embodiment of the present disclosure comprises obtaining a first d-q-o coordinate plane based on an internal phase angle of output voltage produced from each phase of an inverter; converting the first d-q-o coordinate plane to a second d-q-o coordinate plane based on the o-axis configured differently from the first d-q-o coordinate plane; obtaining an output voltage vector for determining a fault location by performing d-q transform on the second d-q-o coordinate plane; determining occurrence of a fault and an area related to the fault based on the output voltage vector; and in the occurrence of the fault, allocating a zero voltage vector to the area related to the fault.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: August 2, 2022
    Assignee: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Chung Yuen Won, Kwang Su Na, Mi Na Kim, Bong Yeon Choi, Kyoung Min Kang, Hoon Lee, Chang Gyun An, Tae Gyu Kim, Jun Sin Yi
  • Patent number: 11405011
    Abstract: The present disclosure relates to a method and apparatus for selective communication between a tag and a reader using a filter. According to an embodiment of the present disclosure, a communication method between a tag and a reader using a filter performed by a reader includes generating a filter based on tag information of the tag to collect data, transmitting the generated filter to the tag, and receiving data from a tag that selected through a filtering operation of the transmitted filter.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: August 2, 2022
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Tae-Jin Lee, Kyoung Min Kim, Young Il Cho
  • Publication number: 20220216872
    Abstract: In a transistor turnoff system, a transistor control circuit is configured to adjust a control voltage at a transistor control output responsive to a comparison signal at a control input. The control voltage has a slew rate. A comparator has a comparator output and first and second comparator inputs. The first comparator input is coupled to the transistor control output. The comparator is configured to: provide the comparison signal at the comparator output based on a reference voltage at the second comparator input; and deactivate the transistor control circuit by changing a state of the comparison signal responsive to the control voltage falling below the reference voltage. A slew-rate compensator is configured to increase the reference voltage by a compensation voltage that compensates for a time delay of the comparator or the transistor control circuit. The compensation voltage is proportional to the slew rate.
    Type: Application
    Filed: March 21, 2022
    Publication date: July 7, 2022
    Inventors: Kyoung Min Lee, James M. Walden, Brian Linehan, Yang Zhang
  • Patent number: 11373960
    Abstract: An electronic component module includes: a substrate; an electronic element disposed on a first surface of the substrate; an encapsulant disposed on the first surface of the substrate and configured to seal the electronic element; a first pad disposed on an outermost region of a second surface of the substrate; a second pad disposed inward of the first pad on the second surface of the substrate, and positioned parallel to the first pad; and a shielding layer connected to the first pad, and at least partially surrounding a side surface of the encapsulant and a side surface of the substrate. The first and second pads are electrically connected by a connection pad.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: June 28, 2022
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Myung Lim Ryu, Kwang Ju Choi, Da Un Kim, Duck Whan Kim, Dong Hyeon Lee, Kyoung Min Kim, Ik Su Shin
  • Patent number: 11365400
    Abstract: Disclosed is a modified microorganism producing putrescine or ornithine, and a method for producing putrescine or ornithine using the same.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: June 21, 2022
    Assignee: CJ Cheiljedang Corporation
    Inventors: Su Jin Park, Young Lyeol Yang, Hye Won Um, Hong Xian Li, Kyoung Min Lee, Baek Seok Lee, Hyo Hyoung Lee, Hee Kyoung Jung
  • Patent number: 11342911
    Abstract: Gate driver bootstrap circuits and related methods are disclosed. An example gate driver stage includes a first terminal and a second terminal, the first terminal to be coupled to a capacitor, the capacitor and the second terminal to be coupled to a gate terminal of a power transistor, a gate driver coupled to the first terminal and the second terminal, and a bootstrap circuit coupled to the first terminal, the second terminal, and the gate driver, the bootstrap circuit including a control stage circuit having an output and a first transistor having a first gate terminal and a first current terminal, the first gate terminal coupled to the output, the first current terminal coupled to the first terminal.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: May 24, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Kyoung Min Lee, Satish Kumar Vemuri, James Michael Walden
  • Publication number: 20220139429
    Abstract: A sense amplifier includes a bit line sense amplifier including a first transistor and a second transistor spaced apart from each other in a first direction, a second conductive line configured to electrically connect the first transistor to the second transistor and extending in the first direction and a local sense amplifier configured to at least partially overlap the second conductive line and disposed between the first transistor and the second transistor.
    Type: Application
    Filed: September 2, 2021
    Publication date: May 5, 2022
    Inventors: Seok Jae LEE, Bok-Yeon WON, Kyoung Min KIM, Dong Geon KIM, Myeong Sik RYU, In Seok BAEK
  • Publication number: 20220129686
    Abstract: A computer includes a processor and a memory, the memory storing instructions executable by the processor to determine respective probabilities of a direction of a gaze of a vehicle occupant toward each of a plurality of points in an image, determine a gaze distance from a center of the image based on the probabilities, and, upon determining that the gaze distance exceeds a threshold, suppress manual control of at least one vehicle component.
    Type: Application
    Filed: October 22, 2020
    Publication date: April 28, 2022
    Applicant: Ford Global Technologies, LLC
    Inventors: Kyoung Min Lee, Parthasarathy Subburaj, Durga Priya Kumar, Tilak D
  • Publication number: 20220111772
    Abstract: The present disclosure relates to a reclining device for a seat, which can adjust a seatback at various angles through movement of a striker installed in a vehicle body. The reclining device for a seat includes a latch installed on a side of a seatback and configured to be rotated together with the seatback, and a striker module in which the latch is engaged with a striker installed in a vehicle body, where the striker moves in a certain section overlapping a rotation trajectory of the latch in a state where the latch is engaged and reclines the seatback together with the latch.
    Type: Application
    Filed: May 28, 2021
    Publication date: April 14, 2022
    Inventors: Suk Won Hong, Jong Seok Han, Jun Yong Kim, Sang Do Park, Sang Man Seo, Sung Hak Hong, Myung Soo Lee, In Chang Hwang, Kyoung Min Cho
  • Publication number: 20220089896
    Abstract: The present disclosure relates to a slip coating composition for glass run of a vehicle. More specifically, the present disclosure relates to a slip coating composition including: an olefin-based thermoplastic elastomer, polypropylene, and an ultra-high molecular weight polyethylene (UHMWPE) with a weight average molecular weight of 0.4×106 to 1×106 g/mol, and to a slip coating material formed of the composition, and according to the present disclosure, it is possible to improve a low friction coefficient, wear resistance, and color matching properties of the coating material.
    Type: Application
    Filed: January 20, 2021
    Publication date: March 24, 2022
    Inventors: SeokHyun Hong, Joon Chul Park, Sang Hyun Lee, Mi Yeong Jo, Sangkyun Ahn, Mu-Jung Lee, Kyoung-Min Hong, Young-Sic Kim
  • Publication number: 20220095380
    Abstract: Disclosed are a method and apparatus for random access using random beam-switching in a wireless network environment. The random access method using random beam-switching in a wireless network environment includes selecting a given preamble when receiving a synchronization signal block from a base station, transmitting, to the base station, a first message including the selected preamble by using a sequential beam-sweeping method, transmitting a third message for a connection request for uplink data transmission when receiving, from the base station, a second message responding to the transmitted first message, and completing a random access channel operation when receiving a fourth message responding to the transmitted third message.
    Type: Application
    Filed: September 20, 2021
    Publication date: March 24, 2022
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Tae Jin LEE, Jun Woo WON, Kyoung Min KIM
  • Patent number: 11283448
    Abstract: One example includes a circuit that includes a transistor control circuit having an input and an output adapted to be coupled to the output of the transistor control circuit and can provide a slew-rate compensation voltage proportional to a slew-rate of a control voltage of the transistor. A reference voltage source can be coupled to the slew-rate compensator to provide a reference voltage at the output of the reference voltage source, the slew-rate compensator configured to add the slew-rate compensation voltage to the reference voltage to provide an adjusted reference voltage at the output of the slew rate compensator. A reference comparator having a first input, a second input and an output is coupled to the input of the transistor control circuit. The first input can be coupled to the control terminal of the transistor, and the second input can be coupled to the output of the slew-rate compensator.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: March 22, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Kyoung Min Lee, James Michael Walden, Brian Jude Linehan, Yang Zhang
  • Patent number: 11280837
    Abstract: A method for detecting failure of a battery cell due to an unknown discharge current, including connecting a detector in series between the battery cell and a power supply for supplying a charging power, determining whether the charging of the battery cell progresses by the charging power in excess of a predetermined battery cell specific charging reference time, measuring a current value of the battery cell in real time if the charging of the battery cell progresses in excess of the battery cell specific charging reference time, determining whether the current value of the battery cell measured in real time exceeds a predetermined battery cell specific failure determination reference current range value, and determining a state of the battery cell as a failure state if the current value of the battery cell exceeds the predetermined battery cell specific failure determination reference current range value.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: March 22, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Jin Sam Koo, Kwang Soo Jeon, Jun Hyuk Pack, Dong Hyun Lee, Kyoung Min Kwon, Jong Hwa Lee
  • Patent number: 11268074
    Abstract: Disclosed is a modified microorganism producing putrescine or ornithine, and a method for producing putrescine or ornithine using the same.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: March 8, 2022
    Assignee: CJ Cheiljedang Corporation
    Inventors: Su Jin Park, Young Lyeol Yang, Hye Won Um, Hong Xian Li, Kyoung Min Lee, Baek Seok Lee, Hyo Hyoung Lee, Hee Kyoung Jung
  • Publication number: 20220069184
    Abstract: Disclosed is a semiconductor light emitting device comprising at least one semiconductor light emitting chip, with each chip including a plurality of electrodes; a plurality of pads arranged at a designated distance from the plurality of electrodes on a plane, respectively; electrical connections provided on the same plane as the plurality of pads for electrically connecting the electrodes and the pads, respectively; and an encapsulation member for covering the at least one semiconductor light emitting chip.
    Type: Application
    Filed: January 31, 2020
    Publication date: March 3, 2022
    Inventors: Kyoung Min KIM, Gye Oul JEONG, Eun Hyun PARK
  • Publication number: 20220045599
    Abstract: A method for controlling a fault of a three phase four wire interlinking converter system according to one embodiment of the present disclosure comprises obtaining a first d-q-o coordinate plane based on an internal phase angle of output voltage produced from each phase of an inverter; converting the first d-q-o coordinate plane to a second d-q-o coordinate plane based on the o-axis configured differently from the first d-q-o coordinate plane; obtaining an output voltage vector for determining a fault location by performing d-q transform on the second d-q-o coordinate plane; determining occurrence of a fault and an area related to the fault based on the output voltage vector; and in the occurrence of the fault, allocating a zero voltage vector to the area related to the fault.
    Type: Application
    Filed: June 21, 2021
    Publication date: February 10, 2022
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Chung Yuen WON, Kwang Su NA, Mi Na KIM, Bong Yeon CHOI, Kyoung Min KANG, Hoon LEE, Chang Gyun AN, Tae Gyu KIM, Jun Sin YI
  • Patent number: D947380
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: March 29, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY HOSPITAL
    Inventors: Chong Bum Chang, Kyoung Min Lee
  • Patent number: D947381
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: March 29, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY HOSPITAL
    Inventors: Chong Bum Chang, Kyoung Min Lee
  • Patent number: D947382
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: March 29, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY HOSPITAL
    Inventors: Chong Bum Chang, Kyoung Min Lee
  • Patent number: D947383
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: March 29, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY HOSPITAL
    Inventors: Chong Bum Chang, Kyoung Min Lee