Patents by Inventor Nam Woo CHOI

Nam Woo 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).

  • Publication number: 20210067794
    Abstract: The present invention relates to an image encoding/decoding method and device. The image decoding method according to the present invention comprises the steps of: decoding a prediction mode index; determining whether the prediction mode index indicates function-based intra prediction; inducing a parameter(s) for generating a function, when the prediction mode index indicates the function-based intra prediction; generating the function on the basis of the induced parameter(s); and performing intra prediction by using the generated function.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 4, 2021
    Inventors: Seung Hyun CHO, Jung Won KANG, Hyun Suk KO, Sung Chang LIM, Jin Ho mes LEE, Ha Hyun LEE, Dong San JUN, Hui Yong KIM, Byeung Woo JEON, Nam Uk KIM, Seung Su JEON, Jin Soo CHOI
  • Patent number: 10939218
    Abstract: A method for detecting wrong positioning of an earphone, and an electronic device and storage medium therefor are provided. The electronic device includes a speaker positioned on surface of a housing; and at least one processor configured to determine a positioning state of an earphone detachably connectable to the electronic device based on a difference between a first audio signal received through at least one microphone positioned in a first body of the earphone and a second audio signal received through at least one microphone positioned in a second body of the earphone.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: March 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gun-Woo Lee, Jung-Yeol An, Jong-Mo Kum, Gang-Youl Kim, Byeong-Jun Kim, Jae-Hyun Kim, Nam-Il Lee, Jun-Soo Lee, Chul-Min Choi
  • Patent number: 10869049
    Abstract: The present invention relates to an image encoding/decoding method and device. The image decoding method according to the present invention comprises the steps of: decoding a prediction mode index; determining whether the prediction mode index indicates function-based intra prediction; inducing a parameter (s) for generating a function, when the prediction mode index indicates the function-based intra prediction; generating the function on the basis of the induced parameter (s); and performing intra prediction by using the generated function.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: December 15, 2020
    Assignee: RESEARCH & BUSINESS FOUNDATION SUNGYUNWAN UNIVERSITY
    Inventors: Seung Hyun Cho, Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Jin Ho mes Lee, Ha Hyun Lee, Dong San Jun, Hui Yong Kim, Byeung Woo Jeon, Nam Uk Kim, Seung Su Jeon, Jin Soo Choi
  • Publication number: 20200344471
    Abstract: According to the present invention, there is provided a method of decoding a video signal, the method including: determining an intra prediction mode of a current block; applying a filter to a first reference sample adjacent to the current block; obtaining a first prediction sample of the current block on the basis of the intra prediction mode and a second reference sample obtained by applying the filter; and obtaining a second prediction sample of the current block using the first prediction sample and the first reference sample.
    Type: Application
    Filed: July 14, 2020
    Publication date: October 29, 2020
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Yung-Lyul LEE, Nam Uk KIM, Jun Woo CHOI
  • Patent number: 10818045
    Abstract: Various embodiments of this disclosure provide a medical imaging apparatus and a method of processing a medical image. The medical imaging apparatus includes a data obtainer configured to obtain raw data generated by performing a tomography scan on an object. The medical imaging apparatus also includes a processor configured to obtain, from the raw data, a plurality of pieces of monochromatic image data respectively corresponding to a plurality of energy levels. The processor is also configured to receive an external input that sets a combination of weights respectively applied to the plurality of pieces of monochromatic image data. The processor is also configured to generate a synthetic image by applying the combination of the weights to the plurality of pieces of monochromatic image data. The medical imaging apparatus also includes a display configured to display the generated synthetic image.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: October 27, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-kook Cho, Eung-jun Youn, Nam-woo Kim, Chang-lae Lee, Yu-na Choi
  • Publication number: 20200303040
    Abstract: Disclosed is a method of providing biological data. The method includes the following steps performed by a data processing device: selecting a biological data set from a biological data pool; encrypting biological data included in the biological data set to produce encrypted biological data; transferring the encrypted biological data to a user; receiving a result of analysis on the encrypted biological data from the user; and transferring information on the encrypted biological data included in the result of the analysis to the user. The data processing device encrypts the biological data with a key determined according to a combination of biological data constituting the biological data set.
    Type: Application
    Filed: January 15, 2020
    Publication date: September 24, 2020
    Applicants: MACROGEN, INC., PSOMAGEN, INC.
    Inventors: JOSHUA SUNGWOO YANG, JAEKYUNG CHON, IK JUNG CHOI, HYUN MIN PARK, JIEUN PARK, JEONGSUN SEO, CHANGHOON KIM, HAN SOL SEO, JIWON SHIN, IN HEE HWANG, SEON HYE SIM, CHANG WOO CHO, NAM HEE KIM, HYE EUN LEE, KYUIN HWANG
  • Patent number: 10757406
    Abstract: According to the present invention, there is provided a method of decoding a video signal, the method including: determining an intra prediction mode of a current block; applying a filter to a first reference sample adjacent to the current block; obtaining a first prediction sample of the current block on the basis of the intra prediction mode and a second reference sample obtained by applying the filter; and obtaining a second prediction sample of the current block using the first prediction sample and the first reference sample.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: August 25, 2020
    Assignee: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Yung-Lyul Lee, Nam Uk Kim, Jun Woo Choi
  • Publication number: 20200117048
    Abstract: Disclosed herein is a display apparatus. The display apparatus includes a backlight unit configured to emit light, a display panel positioned in front of the backlight unit; and an optical film positioned in front of the display panel, and the optical film includes a base layer, a first refractive layer positioned in front of the base layer, a second refractive layer positioned in front of the first refractive layer and having a lower refractive index than the first refractive layer, a third refractive layer positioned at the rear of the base layer, and a fourth refractive layer positioned at the rear of the third refractive layer and having a lower refractive index than the third refractive layer.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 16, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Jun JEONG, Sei Young Kang, Min Woo Kang, Nam Seok Roh, Kwan Sik Min, Jun Sung Choi
  • Publication number: 20200021828
    Abstract: The present invention relates to an image encoding/decoding method and device. The image decoding method according to the present invention comprises the steps of: decoding a prediction mode index; determining whether the prediction mode index indicates function-based intra prediction; inducing a parameter (s) for generating a function, when the prediction mode index indicates the function-based intra prediction; generating the function on the basis of the induced parameter (s); and performing intra prediction by using the generated function.
    Type: Application
    Filed: November 27, 2017
    Publication date: January 16, 2020
    Inventors: Seung Hyun CHO, Jung Won KANG, Hyun Suk KO, Sung Chang LIM, Jin Ho mes LEE, Ha Hyun LEE, Dong San JUN, Hui Yong KIM, Byeung Woo JEON, Nam Uk KIM, Seung Su JEON, Jin Soo CHOI
  • Publication number: 20190268594
    Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus, and more particularly, a method and apparatus for performing filtering in video encoding and decoding. An encoding apparatus may perform filtering on a target, and may generate filtering information indicating whether filtering has been performed on the target. Further, the encoding apparatus may generate a bitstream including filtering information. A decoding apparatus may determine, based on filtering information, whether to perform filtering on a target, and may perform filtering on the target. The decoding apparatus may receive filtering information from the encoding apparatus through a bitstream or may derive filtering information using additional information.
    Type: Application
    Filed: November 28, 2017
    Publication date: August 29, 2019
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
    Inventors: Sung-Chang LIM, Jung-Won KANG, Hyunsuk KO, Jin-Ho LEE, Ha-Hyun LEE, Dong-San JUN, Seung-Hyun CHO, Hui-Yong KIM, Yung-Lyul LEE, Jun-Woo CHOI, Jin-Soo CHOI, Nam-Uk KIM, Myung-Jun KIM
  • Publication number: 20190242744
    Abstract: The present invention provides an online diagnostic/prognostic system, for a rotation device, which does not require a diagnostic apparatus to be transferred and enables easy transmission of waveform data to a remote site. To this end, the present invention comprises: a vibration sensor mounted on a rotation device; a data analyzing unit connected to the vibration sensor and for extracting valid data, which is required for the diagnosis of the rotation device, from data obtained from the vibration sensor; and a diagnostic/prognostic server for diagnosing for abnormalities in the rotation device by means of comparing the valid data and prestored data. Therefore, the present invention does not require an apparatus for measuring vibrations to be transferred and enables transmission of waveform data to a remote cite, thereby enabling more efficient diagnosis for a rotation device and preventing abnormalities in the rotation device.
    Type: Application
    Filed: August 29, 2017
    Publication date: August 8, 2019
    Inventors: Yang Seok Kim, Dae Woong KIM, Bum Nyun KIM, Ji In KIM, Nam Woo CHOI, Jae Hun SHIN, Young Sheop PARK, Chi Yong PARK, Jong Seog KIM, Hyoung Kyun KIM, Byoung Oh LEE, Hee Seung CHANG, You Soo SHIN
  • Patent number: 10354165
    Abstract: An apparatus for detecting an afterimage candidate region includes: a comparison unit which compares gradation data of an n-th frame with integrated gradation data of an (n?1)-th frame and generates integrated gradation data of the n-th frame, where n is a natural number; a memory which provides the integrated gradation data of the (n?1)-th frame to the comparison unit and stores the integrated gradation data of the n-th frame; and an afterimage candidate region detection unit which detects an afterimage candidate region based on the integrated gradation data of the n-th frame, where each of the integrated gradation data of the n-th frame and the integrated gradation data of the (n?1)-th frame comprises a comparison region and a gradation region.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: July 16, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Jun Jang, Nam Gon Choi, Joon Chul Goh, Gi Geun Kim, Geun Jeong Park, Cheol Woo Park, Yun Ki Baek, Jeong Hun So, Dong Gyu Lee
  • Publication number: 20190214156
    Abstract: The present invention provides a method for enabling a large integrated monitoring screen for integrated monitoring of multiple reactors, and a large integrated monitoring screen system. The method for enabling the large integrated monitoring screen comprises the steps of: a screen generation managing device in a remote integrated monitoring center generating at least one of a status monitoring screen, an early warning screen, a diagnostic analysis screen, and a CCTV screen with respect to a plurality of reactors in a nuclear power plant; and transmitting a screen requested by an administrator to the large integrated monitoring screen through an integrated screen control device.
    Type: Application
    Filed: August 29, 2017
    Publication date: July 11, 2019
    Inventors: Dae Woong KIM, Yang Seok KIM, Bum Nyun KIM, Young Sheop PARK, Chi Yong PARK, Jong Seog KIM, Hyoung Kyun KIM, Byoung Oh LEE, Ji In KIM, Nam Woo CHOI, Ji Soo RYU, Jeong Hag OH, Jung Hoon KIM
  • Publication number: 20190215516
    Abstract: The present invention relates to a method and apparatus for encoding and decoding a video image based on transform. The method for decoding a video includes: determining a transform mode of a current block; inverse-transforming residual data of the current block according to the transform mode of the current block; and rearranging the inverse-transformed residual data of the current block according to the transform mode of the current block, wherein the transform mode includes at least one of SDST (Shuffling Discrete Sine Transform), SDCT (Shuffling Discrete cosine Transform), DST (Discrete Sine Transform) or DCT (Discrete Cosine Transform).
    Type: Application
    Filed: June 23, 2017
    Publication date: July 11, 2019
    Applicants: Electronics and Telecommunications Research Institute, Industry Academy Cooperation Foundation of Sejong University
    Inventors: Sung Chang LIM, Jung Won KANG, Hyun Suk KO, Jin Ho LEE, Ha Hyun LEE, Dong San JUN, Seung Hyun CHO, Hui Yong KIM, Jin Soo CHOI, Yung Lyul LEE, Nam Uk KIM, Jun Woo CHOI
  • Publication number: 20190195249
    Abstract: Method for diagnosing a pneumatic control valve by using a positioner model includes: establishing relational expression for outputting valve stem displacement according to control pressure, the relational expression including parameters for the characteristics of a positioner, an actuator, and a valve, determining initial parameter value by adjusting the values of the parameters until the difference between a measured value for a normal operation of the pneumatic control valve and output value obtained by the relational expression is smaller than predetermined error limit, determining diagnostic parameter value by adjusting the values of the parameters until the difference between a measured value for a diagnostic operation of the pneumatic control valve and an output value obtained by the relational expression is smaller than a predetermined error limit, and comparing the initial parameter value and the diagnostic parameter value so as to determine whether the pneumatic control valve has abnormality.
    Type: Application
    Filed: August 30, 2017
    Publication date: June 27, 2019
    Inventors: Yang Seok KIM, Dae Woong KIM, Bum Nyun KIM, Young Sheop PARK, Chi Yong PARK, Jong Seog KIM, Hyoung Kyun KIM, Byoung Oh LEE, Ji In KIM, Nam Woo CHOI, Yong Hoon PARK, Hee Seung CHANG, You Soo SHIN
  • Publication number: 20190200012
    Abstract: According to the present invention, there is provided a method of decoding a video signal, the method including: determining an intra prediction mode of a current block; applying a filter to a first reference sample adjacent to the current block; obtaining a first prediction sample of the current block on the basis of the intra prediction mode and a second reference sample obtained by applying the filter; and obtaining a second prediction sample of the current block using the first prediction sample and the first reference sample.
    Type: Application
    Filed: March 27, 2017
    Publication date: June 27, 2019
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Yung-Lyul LEE, Nam Uk KIM, Jun Woo CHOI
  • Publication number: 20190188345
    Abstract: The present invention provides a method for diagnosing a rotation device by means of a rotor-bearing-foundation model, the method characterized by utilizing the characteristics of a simulation rotor system. To this end, the present invention comprises the steps of: simulating a rotation device as a rotor system; forming a mathematical model for the rotor system; estimating the state of the rotation device by means of the mathematical model and a vibration measurement value of the rotation device; and diagnosing for abnormalities in the rotation device from the changes in an estimated value. Therefore, since a rotation device is diagnosed for abnormalities by means of forming a mathematical model for a rotor system, the present invention enables more accurate diagnosis of the rotation device.
    Type: Application
    Filed: August 29, 2017
    Publication date: June 20, 2019
    Inventors: Yang Seok Kim, Dae Woong KIM, Bum Nyun KIM, Young Sheop PARK, Chi Yong PARK, Jong Seog KIM, Hyoung Kyun KIM, Byoung Oh LEE, Ji In KIM, Nam Woo CHOI, Ji Soo RYU, Hee Seung CHANG, You Soo SHIN
  • Publication number: 20190181345
    Abstract: A phase-transition optical isomer compound is described, a transparent EL display device including the phase-transition optical isomer compound and a method of fabricating the EL display device, where a phase of the phase-transition optical isomer compound is transited by light irradiation and a second electrode of the EL display device is selectively deposited without a masking process.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 13, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Jun-Sik HWANG, Nam KI, Chang-Woo CHUN, Eun-Ji SIM, Soo-Hyuk CHOI