Patents by Inventor Ji-Hoon Cho

Ji-Hoon Cho 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: 20200357333
    Abstract: Provided are a light-emitting diode (LED) display device and a method of operating the LED display device determining whether a line flicker will occur based on a level of an input image signal, obtaining an LED line scan order corresponding to the level of the input image signal and brightness according to the input image signal based on the determining, and driving at least one LED line based on the LED line scan order. An LED line scan order may be adjusted according to a level of an input/output image signal in an LED display device so as to reduce occurrence of a line flicker phenomenon in all levels of the input/output image signal.
    Type: Application
    Filed: July 29, 2020
    Publication date: November 12, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ji-yong PARK, Sang-kyun IM, Young-hoon CHO, Hye-rin CHOI
  • Publication number: 20200358604
    Abstract: An apparatus for sharing data according to one embodiment includes a first combined data generator configured to generate first combined data by combining target data to be shared and a random bit string, a data encryptor configured to generate a ciphertext for the first combined data, a key encryptor configured to generate one or more ciphertexts for a decryption key of the ciphertext for the first combined data using one or more public keys, a second combined data generator configured to generate second combined data by combining the ciphertext for the first combined data, the one or more ciphertexts for the decryption key, and the random bit string, and a data discloser configured to disclose the second combined data to one or more entities to share the target data to be shared.
    Type: Application
    Filed: October 26, 2019
    Publication date: November 12, 2020
    Inventors: Kyu-Young CHOI, Hyo-Jin YOON, Min-Kang Song, Seo-Yeon Park, Ji-Hoon CHO
  • Patent number: 10818826
    Abstract: A manufacturing method of a light emitting diode apparatus is provided. This method includes forming a light emitting diode on the substrate, forming a light leakage preventing layer to surround the side surface of the light emitting diode, etching a region corresponding to the light emitting diode in the substrate, and bonding a wavelength converting material to a lower portion of the light emitting diode in the etched region, in which the wavelength converting material includes a semiconductor layer including a quantum well layer.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: October 27, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-hee Kang, Ji-Hoon Kang, Seong-woo Cho
  • Patent number: 10819138
    Abstract: A control method and/or an apparatus for an energy storage system having demand control and uninterrupted power supply (UPS) functions and an associated control system is provided. The control method for the energy storage system may include: an operation plan establishment step of predicting power to be consumed in a load, so as to estimate the capacity of energy (UPS capacity) which needs to be charged in the energy storage system in order to provide uninterrupted power supply when a power failure occurs, and the capacity of energy available for demand control; an energy storage system operation step of operating the energy storage system according to an operation plan established in the operation plan establishment step; and a step of re-establishing an operation plan according to an operation state of the energy storage system operated by the energy storage system operation step.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: October 27, 2020
    Assignee: KOREA ELECTRIC POWER CORPORATION
    Inventors: Sung-Min Cho, Ji-Hoon Im, Sung-Eun Lee
  • Publication number: 20200330822
    Abstract: The present invention addresses the technical problem of providing an ankle muscle resistance-training apparatus which induces an angle change of the ankle while the ankle is actively moving, and can improve strength of the ankle muscle by applying resistance force to the ankle movement. To this end, the ankle muscle resistance-training apparatus according to the present invention comprises: a support member; a first movement guiding shaft; an intermediate member; a second movement guiding shaft; a foot support; a first resistance force application part; and a second resistance force application part.
    Type: Application
    Filed: December 6, 2018
    Publication date: October 22, 2020
    Applicant: NATIONAL REHABILITATION CENTER
    Inventors: Hogene KIM, Sang Woo CHO, Ji Eun CHO, Joon Ho SHIN, Do Hoon KOO
  • Patent number: 10812260
    Abstract: An apparatus and method for performing operation being secure against side channel attack are provided. The apparatus and method generate values equal to values obtained through an exponentiation operation or a scalar multiplication operation of a point using values extracted from previously generated parameter candidate value sets and an operation secure against side-channel attack, thereby improving security against side-channel attack without degrading performance.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Kyu-Young Choi, Duk-Jae Moon, Hyo-Jin Yoon, Ji-Hoon Cho
  • Patent number: 10805634
    Abstract: A super-resolution processing method of a moving image is provided. The super-resolution processing method of a moving image includes sequentially inputting a plurality of input frames included in the video to any one of a recurrent neural network (RNN) for super-resolution processing and a convolutional neural network (CNN) for super-resolution processing, sequentially inputting a frame sequentially output from the any one of the RNN and the CNN to an additional one of the RNN and the CNN, and upscaling a resolution of the output frame by carrying out deconvolution with respect to a frame sequentially output from the additional one of the RNN and the CNN.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: October 13, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Parichay Kapoor, Ji-hun Oh, Kwang-hoon Son, Young-chul Cho, Yong-sup Park, Hyun-jung Kim
  • Publication number: 20200278085
    Abstract: A solid hydrogen storage device provides an improved heat-transfer efficiency by improving the contact properties between heat-exchange tubes and heat-transfer fins. The solid hydrogen storage device includes a heat-transfer fin including a plurality of tube through holes, a heating tube, and a cooling tube. The heating tube and the cooling tube respectively extend through the tube through holes, and the heating tube and the cooling tube have different coefficients of thermal expansion.
    Type: Application
    Filed: November 20, 2019
    Publication date: September 3, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ji Hye PARK, Kyung Moon LEE, Dong Hoon NAM, Young Jin CHO, Seung Hyeon CHOI, Yun Su LEE, Hoon Mo PARK
  • Patent number: 10743638
    Abstract: Provided is a beauty care pack including a release film and a beauty care sheet which is separably attached to the release film, wherein the beauty care sheet comprises: a support; a fiber layer which is laminated on the support and in which water-soluble polymers are formed in the form of a nanofiber web; a moisturizing layer which is laminated on the fiber layer and consists of the water-soluble polymers and moisturizing materials; and a beauty care layer which is laminated on the moisturizing layer and in which the water-soluble polymers and functional materials are formed in the form of a nanofiber web, such that active ingredients are absorbed into the skin while being dissolved by moisture.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: August 18, 2020
    Assignee: AMOLIFESCIENCE CO., LTD.
    Inventors: Chan Kim, Seung Hoon Lee, Kyu Won Baek, Song Hee Koo, Ji Hyun Lee, Jun Keun Cho, Yong Sik Jung, Hyun Soo Park
  • Patent number: 10749468
    Abstract: Certain aspects relate to a semiconductor die. The semiconductor die includes a voltage-controlled oscillator (VCO), wherein the VCO includes a resonant capacitor, and a resonant inductor coupled in parallel with the resonant capacitor. The resonant inductor includes a first elongated portion and a second elongated portion that are parallel with each other. The semiconductor die also includes a voltage supply line configured to route a supply voltage to the VCO, wherein the voltage supply line includes a first portion that runs parallel with the first and second elongated portions of the resonant inductor and is located between the first and second elongated portions of the resonant inductor.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: August 18, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Ji-Hoon Park, Yido Koo, Jeongsik Yang, Wei-Han Cho, Xiaoyu Wang
  • Patent number: 10741118
    Abstract: Provided are a light-emitting diode (LED) display device and a method of operating the LED display device determining whether a line flicker will occur based on a level of an input image signal, obtaining an LED line scan order corresponding to the level of the input image signal and brightness according to the input image signal based on the determining, and driving at least one LED line based on the LED line scan order. An LED line scan order may be adjusted according to a level of an input/output image signal in an LED display device so as to reduce occurrence of a line flicker phenomenon in all levels of the input/output image signal.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: August 11, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-yong Park, Sang-kyun Im, Young-hoon Cho, Hye-rin Choi
  • Patent number: 10721059
    Abstract: Disclosed are an apparatus and method for data encryption and an apparatus and method for data decryption. The data encryption apparatus includes a key exchanger configured to generate a session key using a key exchange protocol, a cipher key generator configured to generate at least one of a cipher key and a key table from the session key, and an encryptor configured to encrypt data with the at least one of the cipher key and the key table generated from the session key.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: July 21, 2020
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Kyu-Young Choi, Ji-Hoon Cho, Duk-Jae Moon
  • Patent number: 10708533
    Abstract: A display apparatus includes a signal receiver configured to receive an image signal having a plurality of gradations; a display configured to display an image based on the received image signal; a storage configured to store a plurality of calibration coefficients corresponding to more than two gradations from among the plurality of gradations to calibrate a uniformity of the image; and a controller configured to control the display to apply to the received image signal, a calibration coefficient corresponding to a gradation of the received image signal from among the plurality of gradations to display the image. With this, the uniformity of the image outputted from the display apparatus is exactly calibrated with respect to the plurality of gradations.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: July 7, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-hoon Cho, Ji-yong Park, Sang-kyun Im
  • Publication number: 20200193897
    Abstract: Provided a display apparatus including a display including a plurality of display modules, each display module of the plurality of display modules including a pixel driving circuit and at least one pixel including a red inorganic light emitting element, a green inorganic light emitting element, and a blue inorganic light emitting element, a signal receiver configured to receive an image signal having a plurality of grayscales, and a controller configured to divide the display into a plurality of regions, each region of the plurality of regions having a same area and including at least one display module among the plurality of display modules, calibrate the image signal to output uniform light from each of the plurality of regions, and control the pixel driving circuit to display an image based on the calibrated image signal.
    Type: Application
    Filed: December 16, 2019
    Publication date: June 18, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji Yong PARK, Young-Hoon CHO, Sang Kyun IM
  • Publication number: 20200180686
    Abstract: A steering system of a vehicle is provided. The steering system adjusts the torsional rigidity of a torsion bar without limitation as to the configuration thereof and performs active control responding to the vehicle state by adjusting steering characteristics by controlling the torsional rigidity of the torsion bar based on the traveling condition, load state or driving mode of the vehicle. The steering system includes an MR assist device, which is coupled to an end portion of the torsion bar and adjusts the rotation and torsional rigidity of the torsion bar using an MR fluid as a working fluid.
    Type: Application
    Filed: June 21, 2019
    Publication date: June 11, 2020
    Inventors: Ji Hoon Lee, Jin Gyo Suh, Sung Han Cho, Seo An Lee
  • Publication number: 20200165312
    Abstract: Provided is a cosmetic composition for improving skin conditions including a fusion protein containing a skin penetration enhancing peptide, more particularly, a fusion protein in which PDGFa is bound to the skin penetration enhancing peptide, and a cosmetic composition for improving skin conditions, a functional cosmetic product for improving skin conditions, a cosmetic composition for preventing and treating alopecia, and a quasi-drug composition each including the fusion protein.
    Type: Application
    Filed: June 28, 2018
    Publication date: May 28, 2020
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Jin Hyun KIM, Jaeyoon KIM, Ho Song CHO, Ji Seon YOON, Sanghwa LEE, Nae Gyu KANG, Hyun Jong LEE, Seol Hoon LEE, Eugene HUR, Taeyoon KIM
  • Patent number: 10665152
    Abstract: A method of operating a light emitting diode (LED) display device is provided. The method includes determining idle time periods respectively corresponding to LED driving clock signals, based on a number of LED driving clock signals corresponding to one frame, controlling generation of the LED driving clock signals, based on the determined idle time periods, and driving an LED module in a unit of an LED line, based on the generated LED driving clock signals. As the LED display device automatically adjusts idle time periods of the LED driving clock signals, the occurrence of flicker in the LED display device may be reduced.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: May 26, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-hoon Cho, Ji-yong Park, Sang-kyun Im
  • Patent number: 10665890
    Abstract: The present invention provides a conductive material for a secondary battery, and a secondary battery containing the same, the conductive material comprising carbon nanotubes, having a secondary structure in which carbon nanotube units having a diameter of 20-150 nm are entangled, having a ratio of true density to bulk density (TD/BD) of 30-120, having a metal content of 50 ppm or less, and having both excellent dispersibility and high purity, thereby being capable of improving, by increasing the conductivity within an electrode, battery performance, particularly, battery performance at room temperature and low temperature when applied to a battery.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: May 26, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Yeon Kang, Jong Heon Seol, Ji Hee Woo, Ye Lin Kim, Dong Hyun Cho, Sang Hoon Choy
  • Publication number: 20200159484
    Abstract: A display device includes a signal receiver configured to receive an image signal; a display including a plurality of modules each including a plurality of light sources, and display an image based on the received image signal; and a controller configured to perform first uniformity calibration between light sources within each individual module with regard to the modules, and second uniformity calibration between the modules, wherein the controller controls the first uniformity calibration to be applied to the image signal received in the signal receiver based on a first coefficient determined for each of the light sources within each individual module, controls the second uniformity calibration to be applied to the image signal subjected to the first uniformity calibration based on a second coefficient determined for each of the modules, and controls a calibrated image to be displayed based on the image signal subjected to the second uniformity calibration.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-yong PARK, Min-jung KIM, Sang-kyun IM, Young-hoon CHO
  • Patent number: 10659224
    Abstract: An apparatus and method for performing operation being secure against side channel attack are provided. The apparatus and method generate values equal to values obtained through an exponentiation operation or a scalar multiplication operation of a point using values extracted from previously generated parameter candidate value sets and an operation secure against side-channel attack, thereby improving security against side-channel attack without degrading performance.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Kyu-Young Choi, Duk-Jae Moon, Hyo-Jin Yoon, Ji-Hoon Cho