Patents by Inventor Jung-Hyun Nam

Jung-Hyun Nam 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: 12182262
    Abstract: A random number generator resistant to side-channel attacks. The random number generator includes an entropy unit generating random pulses, a random frequency clock generator generating random frequencies by receiving random pulses output from the entropy unit, and an MCU externally masking a specific operation or a specific instruction based on a random frequency received from the random frequency clock generator.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: December 31, 2024
    Assignee: EYL INC.
    Inventors: Bu Suk Jeong, Dae Hyun Nam, Seong Joon Cho, Jung Hyun Baik, Tae Jin Lim
  • Patent number: 12170272
    Abstract: A display device and a method of fabricating a display device. The display device includes a substrate including an emission area and a subarea adjacent to the emission area, a bank disposed in the emission area of the substrate, a height difference compensation pattern disposed in the subarea of the substrate, a first electrode and a second electrode that are disposed on the bank, the first electrode and the second electrode being spaced apart from each other, and a light-emitting element disposed in the emission area, between the first electrode and the second electrode.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: December 17, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Chan Lee, Jeong Hyun Lee, Hyun Kim, Jung Gun Nam, Jang Soon Park, Jeong Su Park, Sung Geun Bae, Myeong Hun Song, Da Sol Jeong, Won Hyeong Heo
  • Patent number: 12170729
    Abstract: A method and a system of providing a quantum random number based on a quantum entropy source. The method includes generating a quantum random number and providing the quantum random number to a device. The generating of the quantum random number based on the quantum entropy source includes determining, by a management unit, whether quantum random numbers stored in a storage are insufficient; generating a quantum random number based on the quantum entropy source using a quantum random number generator provided in a production unit in response to a determination that the quantum random numbers are insufficient; verifying, by a verification unit, the generated quantum random number based on NIST SP800-90B and SP800-22; and in response to quality of the generated quantum number satisfying a criterion, storing the verified quantum random number in the storage.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: December 17, 2024
    Assignee: EYL INC.
    Inventors: Bu Suk Jeong, Dae Hyun Nam, Jung Hyun Baik, Seong Joon Cho, Kang Won Suh
  • Patent number: 12118071
    Abstract: A pattern authentication method for preventing a smudge and a shoulder surfing attack. The pattern authentication method includes: a pattern registration step; and a pattern authentication step, in which the pattern registration step includes: a step of receiving a pattern from a user by an input unit of a pattern authentication device; a step of matching and storing a code value corresponding to the pattern input from the user by a matching unit; and a step of generating a user KDI (Key Derivation ID) by matching the code value to a quantum random number generated by a quantum random number generator by a KDI generator.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: October 15, 2024
    Assignee: EYL INC.
    Inventors: Jung Hyun Baik, Seong Joon Cho, Bu Suk Jeong, Dae Hyun Nam, Kang Won Suh
  • Publication number: 20240313214
    Abstract: It is related to a positive electrode active material for lithium secondary battery, comprising: a compound represented by Chemical Formula 1, wherein a molar content of lithium present in the structure of the positive electrode active material, measured through neutron diffraction analysis, is 1.01 to 1.15 for 1 mole of the positive electrode active material, a method of preparing it, and a lithium secondary battery including the same. Li1+a(NibM11-b)1-aO2??[Chemical Formula 1] In the Chemical Formula 1, 0<a<0.2, 0.8<b<1, M1 is at least one element selected from Co, Mn, Al, Mg, Ca, Ti, V, Cr, Zr, Nb, Mo, and W.
    Type: Application
    Filed: November 17, 2021
    Publication date: September 19, 2024
    Applicants: POSCO Holdings Inc., RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, POSCO CHEMICAL CO., LTD
    Inventors: Inchul PARK, Hyungsub KIM, Sang Hyuk LEE, Jung Hoon SONG, Junghoon KIM, Sang Cheol NAM, Kwon Young CHOI, Ohmin KWON, Seok Hyun SONG
  • Patent number: 12085743
    Abstract: The present invention relates to a polarizing plate, a liquid crystal panel and a display device, and more specifically to a polarizing plate including a polarizer, and a hard coating layer having a thickness of 10 ?m or less and a light-transmitting substrate which are positioned so as to face each other on the basis of the polarizer, and to a liquid crystal panel and a display device including the same.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: September 10, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Jung Hyun Seo, Kyun Il Rah, Young Gon Kim, Taek Geun Nam, Gae Sung Kim, Hyun Soo Lee, Keon Woo Kim
  • Patent number: 12058247
    Abstract: A method of providing a secure communication service using a secure communication device equipped with a quantum-random-number-based encryption chip. The method includes: in response to a first user terminal executing a secure communication device service app for secure communication and inputting a personal information number (PIN) or pattern, performing device authentication between a first user secure communication device and the first user terminal and then performing remote authentication between the first user terminal and a management server; in response to user authentication being completed, generating a quantum secret key a by a quantum encryption chip of the first user secure communication device and transmitting a quantum public key A to a second user secure communication device; and creating, by the first user secure communication device, a speech secure communication channel for communication with the second user secure communication device by inducing and storing the quantum encryption key.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: August 6, 2024
    Assignee: EYL INC.
    Inventors: Bu Suk Jeong, Dae Hyun Nam, Jung Hyun Baik, Seong Joon Cho, Kang Won Suh
  • Patent number: 11594898
    Abstract: An apparatus and method for preventing overcharge of a secondary battery that prevents the overcharge of a Starting Lighting Ignition (SLI) battery, which can be applied to both a regulated system with a voltage regulator and an unregulated system without a voltage regulator, by regulating the voltage applied to the cell assembly.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: February 28, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jung-Hyun Nam, Jeong-Wook Kim, Wong-Ki Yoon, Suk-Hoon Lee
  • Patent number: 11437837
    Abstract: The present invention relates to a voltage recognition system of a starting battery and a method of recognizing an off state of an external system using the same, and more particularly, to a driving system of a starting battery and a method of recognizing an off state of an external system using the same, which make it possible to start an engine next time by recognizing the off state of the external system in an overvoltage state according to whether there occurs a difference between values of voltages measured by two ADCs having different positions of ground GND without requiring a current sensor.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: September 6, 2022
    Assignee: LG Energy Solution, Ltd.
    Inventors: Sung Ju Hong, Jeong Wook Kim, Jung Hyun Nam
  • Patent number: 11212474
    Abstract: The present disclosure provides a bidirectional TDI line image sensor. The bidirectional TDI line image sensor according to one embodiment of the present invention comprises: a pixel unit, which has N line sensors having M CCDs arranged in a line and being arranged in a scan direction, moves, in the scan direction, charges accumulated in the respective columns of the line sensors, and accumulates the same; and an output unit for parallelly receiving as inputs the charges accumulated in the pixel unit from the respective columns, performing analog-to-digital conversion on and storing the charges, and then sequentially outputting same.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: December 28, 2021
    Assignee: VIEWORKS Co., LTD.
    Inventors: Jung Hyun Nam, Kyoung Ryoul Seo
  • Publication number: 20200395779
    Abstract: An apparatus and method for preventing overcharge of a secondary battery that prevents the overcharge of a Starting Lighting Ignition (SLI) battery, which can be applied to both a regulated system with a voltage regulator and an unregulated system without a voltage regulator, by regulating the voltage applied to the cell assembly.
    Type: Application
    Filed: September 27, 2019
    Publication date: December 17, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jung-Hyun NAM, Jeong-Wook KIM, Wong-Ki YOON, Suk-Hoon LEE
  • Publication number: 20200343759
    Abstract: The present invention relates to a voltage recognition system of a starting battery and a method of recognizing an off state of an external system using the same, and more particularly, to a driving system of a starting battery and a method of recognizing an off state of an external system using the same, which make it possible to start an engine next time by recognizing the off state of the external system in an overvoltage state according to whether there occurs a difference between values of voltages measured by two ADCs having different positions of ground GND without requiring a current sensor.
    Type: Application
    Filed: September 25, 2019
    Publication date: October 29, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Sung Ju HONG, Jeong Wook KIM, Jung Hyun NAM
  • Publication number: 20200068154
    Abstract: The present disclosure provides a bidirectional TDI line image sensor. The bidirectional TDI line image sensor according to one embodiment of the present invention comprises: a pixel unit, which has N line sensors having M CCDs arranged in a line and being arranged in a scan direction, moves, in the scan direction, charges accumulated in the respective columns of the line sensors, and accumulates the same; and an output unit for parallelly receiving as inputs the charges accumulated in the pixel unit from the respective columns, performing analog-to-digital conversion on and storing the charges, and then sequentially outputting same.
    Type: Application
    Filed: May 14, 2015
    Publication date: February 27, 2020
    Inventors: Jung Hyun NAM, Kyoung Ryoul SEO
  • Patent number: 10541401
    Abstract: A separator for a rechargeable lithium battery includes a substrate, an organic layer positioned on at least one side of the substrate and including an organic material and an inorganic layer positioned on at least one side of the substrate and including an inorganic material, wherein the organic material includes two or more kinds of organic particles having different particle sizes from each other.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: January 21, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Eon-Mi Lee, Jong-Hwan Park, Jung-Hyun Nam, Yeon-Joo Choi, Hoon Seok, Ae-Hui Goh
  • Patent number: 10529972
    Abstract: A separator for a rechargeable lithium battery includes a substrate; an organic layer on at least one side of the substrate and including an organic material; and an inorganic layer on at least one side of the substrate and including an inorganic material, where the organic material includes two or more organic particles having respective melting points that are different from each other. A rechargeable lithium battery includes the separator.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: January 7, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hoon Seok, Jong-Hwan Park, Jung-Hyun Nam, Eon-Mi Lee, Yeon-Joo Choi, Ae-Hui Goh
  • Publication number: 20190341656
    Abstract: A negative electrode for a rechargeable lithium battery, the negative electrode including: a current collector; a negative active material layer on the current collector; and a coating layer directly contacting the negative active material layer, the coating layer including an organic material and an inorganic material, is disclosed. A rechargeable lithium battery including the same is also disclosed.
    Type: Application
    Filed: July 11, 2019
    Publication date: November 7, 2019
    Inventors: Jung-Hyun Nam, Jong-Hwan Park, Yeon-Joo Choi, Eon-Mi Lee, Hoon Seok
  • Patent number: 10461377
    Abstract: The present invention provides an apparatus and method for controlling the charging capacity of a battery to minimize battery damage, thereby enabling the battery to be used for a longer time. More specifically, the present invention provides a device and method for extending a battery life by reducing battery damage by controlling the charging capacity of the battery according to a temperature.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: October 29, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Jung Hyun Nam, Kyu Seong Lee, Bum Choi
  • Patent number: 10381690
    Abstract: A negative electrode for a rechargeable lithium battery, the negative electrode including: a current collector; a negative active material layer on the current collector; and a coating layer directly contacting the negative active material layer, the coating layer including an organic material and an inorganic material, is disclosed. A rechargeable lithium battery including the same is also disclosed.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: August 13, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jung-Hyun Nam, Jong-Hwan Park, Yeon-Joo Choi, Eon-Mi Lee, Hoon Seok
  • Patent number: 10015418
    Abstract: The present invention provides a TDI line image sensor. The TDI line image sensor according to the present invention is characterized by comprising: a pixel unit, which has N line sensors having M CCDs arranged in a line and being arranged horizontally to a scan direction, horizontally moves charges accumulated in the respective columns of the line sensors, and accumulates same; and an output unit for parallelly receiving as inputs the charges accumulated in the pixel unit from the respective columns, performing analog-to-digital conversion on and storing the charges, and then sequentially outputting same.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: July 3, 2018
    Assignee: VIEWORKS CO., LTD.
    Inventors: Jung Hyun Nam, Kyoung Ryoul Seo
  • Publication number: 20180175461
    Abstract: The present invention provides an apparatus and method for controlling the charging capacity of a battery to minimize battery damage, thereby enabling the battery to be used for a longer time. More specifically, the present invention provides a device and method for extending a battery life by reducing battery damage by controlling the charging capacity of the battery according to a temperature.
    Type: Application
    Filed: August 4, 2016
    Publication date: June 21, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun NAM, Kyu Seong LEE, Bum CHOI