Patents by Inventor Dong-Cheol Choi

Dong-Cheol Choi 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: 11994881
    Abstract: An identification method and an unmanned aerial vehicle (UAV) detection apparatus are provided. The identification method, as a method for preventing a collision that may occur in a process of detecting and identifying a plurality of UAVs flying in the air, detects a plurality of UAVs in the air and determines a legitimacy of flight of each of the plurality of UAVs using an identification information request message.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: May 28, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jinhyung Oh, Kyu-Min Kang, Jae Cheol Park, Dong Woo Lim, Su Na Choi, Sunghyun Hwang
  • Patent number: 11967044
    Abstract: Provided is a device for upscaling resolution based on a slice image, in which a low-resolution image is divided into a plurality of slice images so that a high-resolution image is generated. The device includes a convolution operation unit configured to convert a low-resolution input slice image into a high-resolution output slice image using a convolutional neural network. The convolutional neural network includes a cascading block configured to perform a convolution operation using a convolution filter having a predetermined size and a residual operation on an input feature map generated from the low-resolution input slice image to generate an output feature map, and an upscaling block configured to upscale the output feature map to generate the high-resolution output slice image.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: April 23, 2024
    Assignee: Silicon Works Co., Ltd.
    Inventors: Byung Cheol Song, Dong Yoon Choi, Ji Yun Park
  • Publication number: 20240087277
    Abstract: A control method of a fastening tool for fastening a component part includes photographing a fastening portion of the component part through a camera portion mounted on the fastening tool. The control method includes pre-processing that rotates an input image, which has been photographed by the camera portion, to match with representative model image. The control method includes estimating the fastening portion through an inference process through a convolutional neural network (CNN) algorithm-based image classification work on a video input image of a same fastening portion finished with the pre-processing work. The control method also includes setting a torque value that is matched with a recognized fastening portion when a probability value of the fastening portion in the inference process exceeds a predetermined reference ratio.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 14, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, INHA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Tae Mun Hwang, DongHa Jeong, Byung Cheol Song, Dong Yoon Choi
  • Patent number: 11474120
    Abstract: The present invention relates to a separable cassette for measuring glycated hemoglobin. It is easy to use the separable cassette for measuring glycated hemoglobin of the present invention since a reagent is sequentially leaked during the rotation thereof. In addition, there is no need to shake the reagent beforehand, as the reagent without residual reagent is fully discharged by the rotation. Therefore, the measurement result is accurate because an error between the amount of the reagent used and the amount of sample blood is small.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: October 18, 2022
    Assignee: GREEN CROSS MEDICAL SCIENCE
    Inventors: Hyu Jeong Kim, Hyong Soo Kim, Dong Han Kim, Eun Myung Shin, Jung Sub Shin, Soon Min Hong, Su Hyun Lee, Dong Cheol Choi
  • Patent number: 11226344
    Abstract: Disclosed is a measurement method for a glycated hemoglobin ratio. According to a measurement method for a glycated hemoglobin ratio of the present invention, reagents are easy and convenient to use because of their sequential leakage during the rotation of a cassette, are all discharged by the rotation with no remaining reagent, and are not mixed with each other. Therefore, measurement results are accurate, with fewer errors in the quantities of used reagents and sample blood.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: January 18, 2022
    Assignee: GREEN CROSS MEDICAL SCIENCE
    Inventors: Hyu Jeong Kim, Hyong Soo Kim, Dong Han Kim, Eun Myung Shin, Jung Sub Shin, Soon Min Hong, Su Hyun Lee, Dong Cheol Choi
  • Publication number: 20190242911
    Abstract: Disclosed is a measurement method for a glycated hemoglobin ratio. According to a measurement method for a glycated hemoglobin ratio of the present invention, reagents are easy and convenient to use because of their sequential leakage during the rotation of a cassette, are all discharged by the rotation with no remaining reagent, and are not mixed with each other. Therefore, measurement results are accurate, with fewer errors in the quantities of used reagents and sample blood.
    Type: Application
    Filed: November 4, 2016
    Publication date: August 8, 2019
    Applicant: GREEN CROSS MEDICAL SCIENCE
    Inventors: Hyu Jeong KIM, Hyong Soo KIM, Dong Han KIM, Eun Myung SHIN, Jung Sub SHIN, Soon Min HONG, Su Hyun LEE, Dong Cheol CHOI
  • Publication number: 20190234981
    Abstract: The present invention relates to a separable cassette for measuring glycated hemoglobin. It is easy to use the separable cassette for measuring glycated hemoglobin of the present invention since a reagent is sequentially leaked during the rotation thereof. In addition, there is no need to shake the reagent beforehand, as the reagent without residual reagent is fully discharged by the rotation. Therefore, the measurement result is accurate because an error between the amount of the reagent used and the amount of sample blood is small.
    Type: Application
    Filed: September 29, 2016
    Publication date: August 1, 2019
    Applicant: GREEN CROSS MEDICAL SCIENCE
    Inventors: Hyu Jeong KIM, Hyong Soo KIM, Dong Han KIM, Eun Myung SHIN, Jung Sub SHIN, Soon Min HONG, Su Hyun LEE, Dong Cheol CHOI
  • Patent number: 9494825
    Abstract: A condensing sheet includes a light output unit that has a plurality of lenses, and a light input unit that faces the light output unit and includes a light penetration unit and a light reflection unit. The light reflect ion unit has a structure including a recess sinking toward the light output unit and a reflector received in the recess.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: November 15, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Hang-Suk Choi, Hoon-Seon Lee, Pyung-Gun Jun, Won-Bong Kwak, Dong-Cheol Choi, Jin-Kyu Kim
  • Publication number: 20090323313
    Abstract: Disclosed is a condensing sheet, a method of manufacturing the condensing sheet, a backlight assembly including the condensing sheet, and a liquid crystal display including the backlight assembly. The condensing sheet includes a light output unit that has a plurality of lenses, and a light input unit that faces the light output unit and includes a light penetration unit and a light reflection unit. The light reflect ion unit has a structure including a recess sinking toward the light output unit and a reflector received in the recess.
    Type: Application
    Filed: September 6, 2007
    Publication date: December 31, 2009
    Inventors: Hang-Suk Choi, Hoon-Seon Lee, Pyung-Gun Jun, Won-Bong Kwak, Dong-Cheol Choi, Jin-Kyu Kim