Patents by Inventor Jang Su Kim

Jang Su Kim 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: 20230148364
    Abstract: A current mirror circuit includes a first transistor configured to be supplied with a data current from a data driving circuit; a second transistor configured to drive a light emitting diode by mirroring the data current transferred to the first transistor; and a voltage compensation circuit disposed between one terminal of the first transistor and one terminal of the second transistor and configured to compensate for a difference between voltages of the one terminals of the first transistor and the second transistor.
    Type: Application
    Filed: October 5, 2022
    Publication date: May 11, 2023
    Inventors: Ji Hwan KIM, Sang Suk KIM, Jang Su KIM
  • Patent number: 11636802
    Abstract: An embodiment relates to a technique for driving an LED display. In a method of controlling grayscale of pixels dividedly by N subframes (N is a natural number of 2 or greater), a pulse width modulation (PWM) control value of each subframe may be calculated by a precalculator disposed at a front end of latches, thereby simplifying a circuit.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: April 25, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Jin Ho Choi, Jang Su Kim, Ji Hwan Kim
  • Patent number: 11610536
    Abstract: An embodiment relates to an LED driving technique. The embodiment provides a technique of measuring a forward voltage reaching time of a currently driven LED by comparing a forward voltage sensed in a previous scan line and an LED voltage sensed in a current scan line, and compensating an ON period of a pulse width modulation (PWM) signal by the measured forward voltage reaching time.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: March 21, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Ji Hwan Kim, Jang Su Kim
  • Publication number: 20230083076
    Abstract: The present disclosure provides a current mirror circuit including a first transistor configured to be supplied with a data current from a data driving circuit; a second transistor configured to drive a light emitting diode by mirroring the data current transferred to the first transistor; a capacitor disposed between the first transistor and the second transistor and configured to store a voltage of a gate terminal of the second transistor therein; and a first switch disposed between the first transistor and the second transistor and configured to adjust an input current of the gate terminal of the second transistor.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 16, 2023
    Inventors: Ji Hwan KIM, Sang Suk KIM, Jang Su KIM
  • Patent number: 11488521
    Abstract: When the frequency of a driving clock used to drive a pixel in a display device reaches a target frequency, some of delay circuits are disabled, thereby reducing power consumption for generating the driving clock.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: November 1, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jin Ho Choi, Jang Su Kim, Tae Geun Kim
  • Patent number: 11486344
    Abstract: An engine glow plug disconnection detection method may include: increasing, by a controller, temperature of a plurality of glow plugs by performing a rapid temperature increase mode when an engine start signal of a vehicle is recognized by the controller; determining whether the glow plugs are disconnected and the number of disconnections using an engine start early-stage voltage of the vehicle and a voltage of the vehicle when the rapid temperature increase mode is performed, by the controller; recognizing, by the controller, cylinders of an engine with at least a disconnected glow plug upon determining that one or more glow plugs are disconnected: and storing, by the controller, a number of disconnected glow plugs and information related to corresponding cylinders.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: November 1, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jeong Sang Oh, Jin Ho Kim, Jang Su Kim
  • Patent number: 11423829
    Abstract: The present disclosure provides a technique for reducing power consumption of circuits generating clocks for driving LEDs.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: August 23, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jin Ho Choi, Jang Su Kim, Tae Geun Kim
  • Publication number: 20220189383
    Abstract: An embodiment relates to a technique for driving an LED display. In a method of controlling grayscale of pixels dividedly by N subframes (N is a natural number of 2 or greater), a pulse width modulation (PWM) control value of each subframe may be calculated by a precalculator disposed at a front end of latches, thereby simplifying a circuit.
    Type: Application
    Filed: December 8, 2021
    Publication date: June 16, 2022
    Inventors: Jin Ho Choi, Jang Su Kim, Ji Hwan Kim
  • Publication number: 20220130326
    Abstract: An embodiment relates to an LED driving technique. The embodiment provides a technique of measuring a forward voltage reaching time of a currently driven LED by comparing a forward voltage sensed in a previous scan line and an LED voltage sensed in a current scan line, and compensating an ON period of a pulse width modulation (PWM) signal by the measured forward voltage reaching time.
    Type: Application
    Filed: October 15, 2021
    Publication date: April 28, 2022
    Inventors: Ji Hwan Kim, Jang Su Kim
  • Publication number: 20220065213
    Abstract: An engine glow plug disconnection detection method may include: increasing, by a controller, temperature of a plurality of glow plugs by performing a rapid temperature increase mode when an engine start signal of a vehicle is recognized by the controller; determining whether the glow plugs are disconnected and the number of disconnections using an engine start early-stage voltage of the vehicle and a voltage of the vehicle when the rapid temperature increase mode is performed, by the controller; recognizing, by the controller, cylinders of an engine with at least a disconnected glow plug upon determining that one or more glow plugs are disconnected: and storing, by the controller, a number of disconnected glow plugs and information related to corresponding cylinders.
    Type: Application
    Filed: February 2, 2021
    Publication date: March 3, 2022
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jeong Sang OH, Jin Ho Kim, Jang Su Kim
  • Publication number: 20220028328
    Abstract: The present disclosure relates to an LED driving technology. According to the present disclosure, it is possible to increase the fineness of the gray scale without increasing a frequency of a clock by combining a plurality of driving current sources to generate a driving current supplied to one driving line.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 27, 2022
    Inventors: Ji Hwan Kim, Jin Ho Choi, Jang Su Kim
  • Publication number: 20210350742
    Abstract: When the frequency of a driving clock used to drive a pixel in a display device reaches a target frequency, some of delay circuits are disabled, thereby reducing power consumption for generating the driving clock.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 11, 2021
    Inventors: Jin Ho CHOI, Jang Su KIM, Tae Geun KIM
  • Publication number: 20210272512
    Abstract: The present disclosure provides a technique for reducing power consumption of circuits generating clocks for driving LEDs.
    Type: Application
    Filed: February 25, 2021
    Publication date: September 2, 2021
    Inventors: Jin Ho CHOI, Jang Su KIM, Tae Geun KIM
  • Patent number: 10186875
    Abstract: The present invention relates to a coil type unit for wireless power transmission, a wireless power transmission device, an electronic device, and a manufacturing method of a coil type unit for wireless power transmission. A coil type unit for wireless power transmission according to the present invention includes a coil pattern having a wiring pattern shape; a magnetic portion having the coil pattern attached to one surface thereof and a conductive pattern formed thereon; an insulating adhesive portion interposed between the magnetic portion having the conductive pattern formed thereon and the coil pattern to bond the magnetic portion and the coil pattern to each other while insulating the coil pattern and the conductive pattern from each other; and a conductive via for electrically connecting both ends of the coil pattern and the conductive pattern.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: January 22, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seung Wook Park, No Il Park, Doo Sung Jung, Jang Su Kim, Chang Bae Lee
  • Patent number: 9761371
    Abstract: The present invention relates to a coil type unit for wireless power transmission, a wireless power transmission device, an electronic device, and a manufacturing method of a coil type unit for wireless power transmission. A coil type unit for wireless power transmission according to the present invention includes a coil pattern in the form of a wiring pattern; a magnetic portion having the coil pattern attached to one surface thereof; and an adhesive portion interposed between the magnetic portion and the coil pattern to bond the magnetic portion and the coil pattern, wherein the magnetic portion is formed by laminating one or more conductive sheets with one or more magnetic sheets and integrally firing the laminated sheets, and the magnetic portion has conductive holes in the position, where both ends of the coil pattern are disposed, to electrically connect the both ends of the coil pattern and the conductive sheet.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: September 12, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: No Il Park, Jang Su Kim, Doo Sung Jung, Seung Wook Park
  • Patent number: 9610978
    Abstract: A method of assembling a sub-frame of a vehicle with the front side member of the vehicle includes integrally forming a supporting end of a mounting nut that protrudes in a radial direction in a center of an external circumference of the mounting nut, forming a through hole in a lower surface of the front side member, forming a seat as a groove in an internal surface of the through hole, inserting a lower end of the mounting nut into the through hole so that the supporting end is supported by a circumference of the through hole, settling a head of the mounting nut in the seat, and welding the supporting end and the head along the circumference of the through hole and a side of the seat to assemble the sub-frame to the front side member.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: April 4, 2017
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTOR COMPANY, SHIN YOUNG CO., LTD., SUNGWOO HITECH CO., LTD., MS AUTOTECH CO., LTD.
    Inventors: Dae Seung Kim, Chang Wook Park, Heui Won Yang, Log Won Do, Sang Hoon Chae, Jang-Su Kim, Sang-Lae Lee, Mun Yong Lee, Daeho Yang, Sungyong Park, Dae Keun Kim
  • Patent number: 9502173
    Abstract: There is provided a shield part including: a magnetic laminate formed by laminating a plurality of magnetic layers and having a first surface and a second surface; a coil pattern formed on the first surface; and a first lead part formed at an end portion of a central portion of the coil pattern and a second lead part formed outside of the coil pattern, wherein a portion of the second surface is removed to form a recess, the first lead part is electrically connected to the second lead part by a conductive material disposed in the recess and a first via formed in the magnetic laminate in a lamination direction, and the second lead part is electrically connected to the first lead part by the conductive material disposed in the recess and a second via formed in the magnetic laminate in the lamination direction.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: November 22, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seung Wook Park, No Il Park, Doo Sung Jung, Jang Su Kim, Chang Bae Lee
  • Publication number: 20160055964
    Abstract: A common mode filter and a manufacturing method thereof are disclosed.
    Type: Application
    Filed: March 19, 2015
    Publication date: February 25, 2016
    Inventors: Seung-Wook PARK, Won-Chul SIM, Jang-Su KIM, Jae-Kul LEE
  • Publication number: 20150111164
    Abstract: Disclosed herein are a ceramic substrate, a firing setter, and a manufacturing method of a ceramic substrate using the same. According to the present invention, there is provided a ceramic substrate including: a first substrate concave-convex part formed on a lower surface thereof and having a first substrate roughness; and a second substrate concave-convex part formed on an upper surface thereof and having a second substrate roughness.
    Type: Application
    Filed: March 6, 2014
    Publication date: April 23, 2015
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seung Wook Park, Jang Su Kim, No Il Park, Doo Sung Jung
  • Publication number: 20150076919
    Abstract: The present invention relates to a coil type unit for wireless power transmission, a wireless power transmission device, an electronic device, and a manufacturing method of a coil type unit for wireless power transmission. A coil type unit for wireless power transmission according to the present invention includes a coil pattern having a wiring pattern shape; a magnetic portion having the coil pattern attached to one surface thereof and a conductive pattern formed thereon; an insulating adhesive portion interposed between the magnetic portion having the conductive pattern formed thereon and the coil pattern to bond the magnetic portion and the coil pattern to each other while insulating the coil pattern and the conductive pattern from each other; and a conductive via for electrically connecting both ends of the coil pattern and the conductive pattern.
    Type: Application
    Filed: August 18, 2014
    Publication date: March 19, 2015
    Inventors: Seung Wook PARK, No Il Park, Doo Sung Jung, Jang Su Kim, Chang Bae Lee