Patents by Inventor Gwang Sik Park

Gwang Sik Park 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: 20240146959
    Abstract: Disclosed are an image encoding method using a skip mode and a device using the method. The image encoding method may comprise the steps of: judging whether there is residual block data of a prediction target block on the basis of predetermined data indicating whether residual block data has been encoded; and, if there is residual block data, restoring the prediction target block on the basis of the residual block data and an intra-screen predictive value of the prediction target block. Consequently, encoding and decoding efficiency can be increased by carrying out the encoding and decoding of screen residual data only for prediction target blocks where there is a need for a residual data block in accordance with screen similarity.
    Type: Application
    Filed: January 8, 2024
    Publication date: May 2, 2024
    Applicants: Electronics and Telecommunications Research Institute, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Gun BANG, Won Sik CHEONG, Gi Mun UM, Nam Ho HUR, Gwang Hoon PARK, Kyung Yong KIM
  • Publication number: 20230000343
    Abstract: An optical measurement apparatus includes a light source unit generating and outputting light, a polarized light generating unit generating polarized light from the light, an optical system generating a pupil image of a measurement target, using the polarized light, a self-interference generating unit generating multiple beams that are split from the pupil image, and a detecting unit detecting a self-interference image generated by interference of the multiple beams with each other.
    Type: Application
    Filed: January 27, 2022
    Publication date: January 5, 2023
    Inventors: Jin Yong KIM, Dae Hoon HAN, Wook Rae KIM, Myung Jun LEE, Gwang Sik PARK, Sung Ho JANG
  • Patent number: 10955360
    Abstract: Systems and methods related to a structured illumination (SI)-based inspection apparatus are described. The SI-based inspection apparatus may be capable of accurately inspecting an inspection object in real time with high resolution, while reducing the loss of light. Also described are an inspection method, and a semiconductor device fabrication method including the SI-based inspection method. The inspection apparatus may include a light source configured to generate and output a light beam, a phase shifting grating (PSG) configured to convert the light beam from the light source into the SI, a beam splitter configured to cause the SI to be incident on an inspection object and output a reflected beam from the inspection object, a stage capable of moving the inspection object and on which the inspection object is arranged, and a time-delayed integration (TDI) camera configured to capture images of the inspection object by detecting the reflected beam.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: March 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myung-jun Lee, Ken Ozawa, Wook-rae Kim, Gwang-sik Park, Ji-hoon Kang, Kwang-soo Kim
  • Publication number: 20200064276
    Abstract: Systems and methods related to a structured illumination (SI)-based inspection apparatus are described. The SI-based inspection apparatus may be capable of accurately inspecting an inspection object in real time with high resolution, while reducing the loss of light. Also described are an inspection method, and a semiconductor device fabrication method including the SI-based inspection method. The inspection apparatus may include a light source configured to generate and output a light beam, a phase shifting grating (PSG) configured to convert the light beam from the light source into the SI, a beam splitter configured to cause the SI to be incident on an inspection object and output a reflected beam from the inspection object, a stage capable of moving the inspection object and on which the inspection object is arranged, and a time-delayed integration (TDI) camera configured to capture images of the inspection object by detecting the reflected beam.
    Type: Application
    Filed: February 26, 2019
    Publication date: February 27, 2020
    Inventors: MYUNG-JUN LEE, Ken Ozawa, Wook-rae Kim, Gwang-Sik Park, Ji-hoon Kang, Kwang-Soo Kim
  • Patent number: 10082662
    Abstract: An ultra-high-speed 3D refractive index tomography and structured illumination microscopy system using a wavefront shaper and a method using the same are provided. A method of using an ultra-high-speed 3D refractive index tomography and structured illumination microscopy system that utilizes a wavefront shaper includes adjusting an irradiation angle of a plane wave incident on a sample by using the wavefront shaper, measuring a 2D optical field, which passes through the sample, based on the irradiation angle of the plane wave, and obtaining a 3D refractive index image from information of the measured 2D optical field by using an optical diffraction tomography or a filtered back projection algorithm.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: September 25, 2018
    Assignees: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, TOMOCUBE, INC.
    Inventors: YongKeun Park, Seungwoo Shin, Gwang Sik Park
  • Publication number: 20170357084
    Abstract: An ultra-high-speed 3D refractive index tomography and structured illumination microscopy system using a wavefront shaper and a method using the same are provided. A method of using an ultra-high-speed 3D refractive index tomography and structured illumination microscopy system that utilizes a wavefront shaper includes adjusting an irradiation angle of a plane wave incident on a sample by using the wavefront shaper, measuring a 2D optical field, which passes through the sample, based on the irradiation angle of the plane wave, and obtaining a 3D refractive index image from information of the measured 2D optical field by using an optical diffraction tomography or a filtered back projection algorithm.
    Type: Application
    Filed: August 22, 2016
    Publication date: December 14, 2017
    Inventors: YongKeun Park, Seungwoo Shin, Gwang Sik Park
  • Publication number: 20050031303
    Abstract: The present invention relates to a method for managing bookmark information and a method for reproducing content using the same. An optical disc device such as a DVD (Digital Versatile Disc) player stores start and end addresses of a predetermined region of a recording medium as bookmark information and also stores the bookmark information in linkage to identification information indicating an interval bookmark for region playback. Therefore, a user can conveniently reproduce a predetermined region of a desired recording medium.
    Type: Application
    Filed: May 7, 2004
    Publication date: February 10, 2005
    Inventor: Gwang Sik Park