Patents by Inventor In Keun Woo

In Keun Woo 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).

  • Audio encoding apparatus and method, and audio decoding apparatus and method
    Patent number: 10783892
    Abstract: An audio encoding apparatus to encode an audio signal using lossless coding or lossy coding and an audio decoding apparatus to decode an encoded audio signal are disclosed. An audio encoding apparatus according to an exemplary embodiment may include an input signal type determination unit to determine a type of an input signal based on characteristics of the input signal, a residual signal generation unit to generate a residual signal based on an output signal from the input signal type determination unit, and a coding unit to perform lossless coding or lossy coding using the residual signal.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: September 22, 2020
    Assignees: Electronics and Telecommunications Research Institute, THE KOREA DEVELOPMENT BANK
    Inventors: Seung Kwon Beack, Tae Jin Lee, Jong Mo Sung, Kyeong Ok Kang, Keun Woo Choi
  • Display device
    Patent number: 10775666
    Abstract: An exemplary embodiment of the present inventive concept provides a display device including: a light unit configured to emit blue light; a color conversion panel disposed on the light unit; and a display panel disposed between the light unit and the color conversion panel to include a transistor. The color conversion panel includes: a substrate; a color conversion layer disposed between the substrate and the display panel to include a semiconductor nanocrystal; a transmission layer disposed between the substrate and the display panel; and a polarization layer disposed between the color conversion layer and the display panel and between the transmission layer and the display panel, and the display panel includes a blue light blocking film which overlaps the transistor, while the blue light blocking film includes a red color filter.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: September 15, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang-Il Kim, Yeo Geon Yoon, Keun Woo Park, Su Wan Woo, Kee-Bum Park, Do Yeong Park
  • Memory system capable of preventing read fail, including reading a second memory block through a dummy read operation, when an erase operation is performed to a first memory block, and operating method thereof
    Patent number: 10777285
    Abstract: A memory system includes: a memory device; and a non-erase block management device suitable for determining, when an erase operation is performed on a first memory block included in the memory device, whether to perform a read operation on a second word line of a second memory block, according to a location of a first word line, which is a target word line for a read operation on the second memory block, wherein the second word line includes a target word line for a dummy read operation.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: September 15, 2020
    Assignee: SK hynix Inc.
    Inventors: Won-Jin Jung, Keun-Woo Lee
  • BINAURAL RENDERING METHOD AND APPARATUS FOR DECODING MULTI CHANNEL AUDIO
    Publication number: 20200234718
    Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
    Type: Application
    Filed: April 6, 2020
    Publication date: July 23, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju LEE, Jeong Il SEO, Jae Hyoun YOO, Seung Kwon BEACK, Jong Mo SUNG, Tae Jin LEE, Kyeong Ok KANG, Jin Woong KIM, Tae Jin PARK, Dae Young JANG, Keun Woo CHOI
  • Color conversion panel and display device including the same
    Patent number: 10712606
    Abstract: An exemplary embodiment of present disclosure provides a color conversion panel including: a substrate; a plurality of light blocking layers disposed on the substrate; a color conversion layer disposed on the substrate between the plurality of the light blocking layers and including quantum dots; an optical filter layer covering the color conversion layer and the light blocking layers; and a hydrogen blocking layer disposed on one surface of the optical filter layer.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: July 14, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang-Il Kim, Keun Woo Park, Hoon Kang, Tae Jin Kong
  • CONTROLLER, MEMORY SYSTEM INCLUDING THE CONTROLLER, AND OPERATING METHOD OF THE MEMORY SYSTEM
    Publication number: 20200202952
    Abstract: A controller, for use in memory system, includes: a processor configured to control a read operation for a target memory area of a memory device in response to a read command received from a host; and an error correction circuit configured to perform an error correction operation on read data corresponding to the read operation, wherein the processor selects an optimum read voltage set among a plurality of read voltage sets in a read retry table, based on an erase write cycling (EW) number of the target memory area and a fail bit number of the read data.
    Type: Application
    Filed: July 12, 2019
    Publication date: June 25, 2020
    Inventors: Keun Woo LEE, Hye Lyoung LEE, Yun Sik CHOI
  • MEMORY CONTROLLER AND OPERATING METHOD THEREOF
    Publication number: 20200168272
    Abstract: A memory controller having an improved operation speed controls a memory device including a plurality of memory blocks. The memory controller includes: a remaining count determiner configured to determine a remaining count that is a number of program and erase operations to be additionally performed in the memory device based on a program/erase count received from the memory device, a retention period calculator configured to determine a retention period based on a power-off time and a power-on time of the memory device and a read voltage determiner configured to generate a changed read voltage table based on a default read voltage table and a coefficient determined according to the remaining count, and determine a read voltage to be used in the memory device according to the retention period among read voltages included in the changed read voltage table.
    Type: Application
    Filed: July 16, 2019
    Publication date: May 28, 2020
    Inventors: You Min JI, Keun Woo LEE
  • Binaural rendering method and apparatus for decoding multi channel audio
    Patent number: 10614820
    Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 7, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju Lee, Jeong Il Seo, Jae Hyoun Yoo, Seung Kwon Beack, Jong Mo Sung, Tae Jin Lee, Kyeong Ok Kang, Jin Woong Kim, Tae Jin Park, Dae Young Jang, Keun Woo Choi
  • METHOD AND SYSTEM FOR PROVIDING QUIZ TOGETHER WITH ADVERTISEMENT IN INSTANT MESSAGE SERVICE (IMS) CHAT ROOM
    Publication number: 20200044998
    Abstract: A method, system, and quiz server for providing a quiz and an advertisement simultaneously in an IMS chat is provided. The method includes creating a chat room from a mobile terminal while inviting a pre-registered quizbot as a chat participant, displaying a quiz and an advertisement within the chat room on the mobile terminal in the form of a chat message composed by the quizbot, and displaying, within the chat room, an answer of a certain chat participant with respect to the quiz, and inputting a result of determination of whether the answer is correct into the chat room by using the quizbot, displaying, within the chat room, the answer of the certain chat participant with respect to the quiz, and inputting a result of determination of whether the answer is correct into the chat room by using the quizbot.
    Type: Application
    Filed: September 29, 2017
    Publication date: February 6, 2020
    Inventors: Chang Sub JEON, Keun Woo LEE
  • Liquid crystal display device
    Patent number: 10551666
    Abstract: A liquid crystal display (“LCD”) device includes: a first substrate having a first area that allows an image to be transmitted therethrough and a second area that blocks an image; a second substrate opposite to the first substrate; a liquid crystal layer between the first substrate and the second substrate; and a polarizing layer on the second substrate. The polarizing layer may include first polarizing patterns and second polarizing patterns, wherein, in a planar view, the first polarizing patterns overlap with the first area and the second polarizing patterns overlap with the second area.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: February 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keun Woo Park, Jang Il Kim, Yeo Geon Yoon
  • BACKLIGHT UNIT AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20200012030
    Abstract: Disclosed herein is a backlight unit, the backlight unit comprises a light guide plate; a wavelength conversion layer disposed above the light guide plate; and a reflective polarizing layer disposed above the wavelength conversion layer and comprising a patterned polarizer, wherein the wavelength conversion layer and the reflective polarizing layer are integrally formed as one piece.
    Type: Application
    Filed: December 7, 2018
    Publication date: January 9, 2020
    Inventors: Keun Woo PARK, Min Su KIM, Hong Beom LEE, Tae Woo LIM
  • ENCODING/DECODING APPARATUS FOR PROCESSING CHANNEL SIGNAL AND METHOD THEREFOR
    Publication number: 20190304474
    Abstract: An encoding/decoding apparatus and method for controlling a channel signal is disclosed, wherein the encoding apparatus may include an encoder to encode an object signal, a channel signal, and rendering information for the channel signal, and a bit stream generator to generate, as a bit stream, the encoded object signal, the encoded channel signal, and the encoded rendering information for the channel signal.
    Type: Application
    Filed: June 20, 2019
    Publication date: October 3, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jeong ll SEO, Seung Kwon BEACK, Dae Young JANG, Kyeong Ok KANG, Tae Jin PARK, Yong Ju LEE, Keun Woo CHOI, Jin Woong KIM
  • MEMORY SYSTEM AND OPERATING METHOD OF THE SAME
    Publication number: 20190267103
    Abstract: A memory system includes: a memory device; and a non-erase block management device suitable for determining, when an erase operation is performed on a first memory block included in the memory device, whether to perform a read operation on a second word line of a second memory block, according to a location of a first word line, which is a target word line for a read operation on the second memory block, wherein the second word line includes a target word line for a dummy read operation.
    Type: Application
    Filed: September 4, 2018
    Publication date: August 29, 2019
    Inventors: Won-Jin JUNG, Keun-Woo LEE
  • AUDIO ENCODING APPARATUS AND METHOD, AND AUDIO DECODING APPARATUS AND METHOD
    Publication number: 20190259399
    Abstract: An audio encoding apparatus to encode an audio signal using lossless coding or lossy coding and an audio decoding apparatus to decode an encoded audio signal are disclosed. An audio encoding apparatus according to an exemplary embodiment may include an input signal type determination unit to determine a type of an input signal based on characteristics of the input signal, a residual signal generation unit to generate a residual signal based on an output signal from the input signal type determination unit, and a coding unit to perform lossless coding or lossy coding using the residual signal.
    Type: Application
    Filed: May 6, 2019
    Publication date: August 22, 2019
    Applicants: Electronics and Telecommunications Research Institute, THE KOREA DEVELOPMENT BANK
    Inventors: Seung Kwon BEACK, Tae Jin LEE, Jong Mo SUNG, Kyeong Ok KANG, Keun Woo CHOI
  • Scheme for supporting wireless transmission taking into account QoS of USB application data
    Patent number: 10382223
    Abstract: Provided is a method and apparatus for wirelessly transmitting Universal Serial Bus (USB) application data by using an Enhanced Distributed Channel Access (EDCA) scheme that uses one or more Access Channels (ACs) having different priorities. The method includes receiving one or more USB application data from an USB application, dynamically assigning an AC through which the USB application data is to be transmitted, and transmitting the USB application data through the assigned AC.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: August 13, 2019
    Assignees: Samsung Electronics Co., Ltd, Ajou University Industry-Academic Cooperation Foundation
    Inventors: Jun-Hyung Kim, Young-Bae Ko, Jong-Hyo Lee, Keun-Woo Lim, Woo-Sung Jung, Joo-Yeol Lee
  • WIRING SUBSTRATE, DISPLAY DEVICE INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE WIRING SUBSTRATE
    Publication number: 20190235330
    Abstract: A wiring substrate, a display device including a wiring substrate, and a method of manufacturing a wiring substrate are provided. The display device comprises: a wiring substrate; a color conversion substrate on the wiring substrate and comprises a color conversion pattern having a wavelength shifter; and a backlight unit which is spaced apart from the color conversion substrate with the wiring substrate interposed between the backlight unit and the color conversion substrate. The wiring substrate comprises: a first base; a thin film transistor on the first base and comprising a gate electrode, an active pattern on the gate electrode, and a drain electrode and a source electrode on the active pattern and spaced apart from each other; and a wavelength-selective reflector which is disposed on the first base and stacked each other with the thin film transistor.
    Type: Application
    Filed: July 25, 2018
    Publication date: August 1, 2019
    Inventors: Keun Woo Park, Dong Il Son, Yeo Geon Yoon
  • Liquid crystal display and method for manufacturing the same
    Patent number: 10330983
    Abstract: A method for manufacturing a liquid crystal display, and the display formed thereby, the method including forming a first display panel including a thin film transistor and a pixel electrode connected to the thin film transistor, the thin film transistor including an auxiliary electrode, a semiconductor layer disposed on the auxiliary electrode, and a gate electrode disposed on the semiconductor layer, forming a second display panel including a common electrode, forming a liquid crystal layer including a plurality of liquid crystal molecules on the first display panel or the second display panel, bonding the first display panel and the second display panel, applying different voltages to the pixel electrode and the common electrode, and irradiating ultraviolet rays in the liquid crystal layer, to initially align the liquid crystal molecules.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: June 25, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang-II Kim, Keun Woo Park, Jong Hak Hwang
  • Encoding/decoding apparatus for processing channel signal and method therefor
    Patent number: 10332532
    Abstract: An encoding/decoding apparatus and method for controlling a channel signal is disclosed, wherein the encoding apparatus may include an encoder to encode an object signal, a channel signal, and rendering information for the channel signal, and a bit stream generator to generate, as a bit stream, the encoded object signal, the encoded channel signal, and the encoded rendering information for the channel signal.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: June 25, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jeong Il Seo, Seung Kwon Beack, Dae Young Jang, Kyeong Ok Kang, Tae Jin Park, Yong Ju Lee, Keun Woo Choi, Jin Woong Kim
  • Audio encoding apparatus and method, and audio decoding apparatus and method
    Patent number: 10332526
    Abstract: An audio encoding apparatus to encode an audio signal using lossless coding or lossy coding and an audio decoding apparatus to decode an encoded audio signal are disclosed. An audio encoding apparatus according to an exemplary embodiment may include an input signal type determination unit to determine a type of an input signal based on characteristics of the input signal, a residual signal generation unit to generate a residual signal based on an output signal from the input signal type determination unit, and a coding unit to perform lossless coding or lossy coding using the residual signal.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: June 25, 2019
    Assignees: Electronics and Telecommunications Research Institute, THE KOREA DEVELOPMENT BANK
    Inventors: Seung Kwon Beack, Tae Jin Lee, Jong Mo Sung, Kyeong Ok Kang, Keun Woo Choi
  • BINAURAL RENDERING METHOD AND APPARATUS FOR DECODING MULTI CHANNEL AUDIO
    Publication number: 20190147894
    Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 16, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju LEE, Jeong Il SEO, Jae Hyoun YOO, Seung Kwon BEACK, Jong Mo SUNG, Tae Jin LEE, Kyeong Ok KANG, Jin Woong KIM, Tae Jin PARK, Dae Young JANG, Keun Woo CHOI