Patents by Inventor Joo-Hyung Lee

Joo-Hyung Lee 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: 10048431
    Abstract: Provided are a light guide member, a lighting apparatus including the light guide member, and a method of fabricating the light guide member. The light guide member comprises: a body, which is formed as a transparent plate, including a first surface and a second surface facing the first surface; and a plurality of dimple type optical controllers formed beneath at least one of the first surface and the second surface and having reflective surfaces that reflect light proceeding between the first and second surfaces of the body toward at least one of the first and second surfaces.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: August 14, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hong-seok Lee, Hoon Song, Jun-bo Yoon, Joo-hyung Lee
  • Patent number: 10021510
    Abstract: An electronic device is provided. The electronic device includes a first local area communication part configured to perform a first local area communication, a second local area communication part configured to perform a second local area communication at a lower power than the first local area communication part, and a control part configured to connect the first local area communication to other electronic devices by using the second local area communication part, wherein the second local area communication part may be configured to try a second local area communication with the other electronic devices after the connected first local area communication is disconnected.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: July 10, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Seon Hong, Veerabhadrappa Chilakanti, Jun-Sik Kwon, Joo-Hyung Lee, Eui-Bum Han
  • Publication number: 20180159778
    Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data rate beyond a 4G communication system such as LTE. In addition, the present disclosure relates to a TCP-based transmission control method and apparatus which can reduce a delay time while improving a transmission rate in a communication system. A method for TCP-based transmission control in a communication system according to an embodiment of the present disclosure comprises the steps of: determining a maximum target transmission rate for TCP control using maximum congestion windows (CWNDs) estimated at predetermined times; determining a minimum target round trip time (RTT) for the TCP control using minimum RTTs estimated at the predetermined times; and updating at least one of a congestion window (CWND) and a receive window (RWND) in an RTT time slot, using the maximum target transmission rate and the minimum target RTT.
    Type: Application
    Filed: June 8, 2016
    Publication date: June 7, 2018
    Inventors: Jin-Sung LEE, Kyunghan LEE, Jung-Shin PARK, Han-Na LIM, Joo-Hyung LEE, Hyung-Ho LEE
  • Patent number: 9966036
    Abstract: A plurality of data signals to be supplied to a first pixel and a second pixel formed by a first sub-pixel, two second sub-pixels, and two third sub-pixels on the display panel are rendered. Input data corresponding to a first sampling window with respect to the second sub-pixel of the first pixel among the input data applied to the stripe pattern is used to render a second data signal supplied to the second sub-pixel through filtering sampled input data for a color of the second sub-pixel. The first data signal to be supplied to the first sub-pixel is rendered through filtering of the input data of a second window unit for a color of the first sub-pixel with respect to the first sub-pixel of the first pixel among the sampled input data.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: May 8, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Geun-Young Jeong, Jong-Woong Park, Joo-Hyung Lee
  • Patent number: 9946416
    Abstract: Disclosed is a touch sensor device, including: a plurality of first sensing electrodes which includes a plurality of first linear electrodes extending in a first direction and a first connection electrode connecting the plurality of first linear electrodes to each other; and a plurality of second sensing electrodes which includes a plurality of second linear electrodes extending in a second direction perpendicular to the first direction and a second connection electrode connecting the plurality of second linear electrodes to each other, in which a disposition density of the plurality of first linear electrodes included in one first sensing electrode is gradually decreased from a center of the first sensing electrode to an outer side of the first sensing electrode.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 17, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon Sung Ahn, Hyoung Wook Jang, Seung Heui Jeong, Joo Hyung Lee
  • Publication number: 20180091577
    Abstract: The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services based on 5G communication technology and IoT-related technology (e.g. smart homes, smart buildings, smart cities, smart cars, connected cars, healthcare, digital education, retail business, services related to security and safety, etc.).
    Type: Application
    Filed: March 28, 2016
    Publication date: March 29, 2018
    Inventors: Jung-Shin Park, Joo-Hyung Lee, Ji-Cheol Lee, Han-Na Lim, Jin-Sung Lee, Hyung-Ho Lee
  • Publication number: 20180051392
    Abstract: Provided is a method of manufacturing high strength synthetic fibers, and high strength synthetic fibers manufactured using the same. More particularly, the method involves a localized heating process by raising the temperature of a molten spinning fiber to a temperature higher than that of a pack body during a short period of time with no degradation through a heating zone located in the immediate vicinity of capillary in the spinning nozzle, so as to effectively control the molecular entanglement structure in the molten polymer without reducing the molecular weight and thus to enhance the drawability of the as-spun fibers, thereby improving the mechanical properties of the as-spun fibers, such as strength, elongation, etc., using the existing processes of melt spinning and drawing and thus enabling a mass production of a high-performance fiber at low cost.
    Type: Application
    Filed: March 9, 2016
    Publication date: February 22, 2018
    Inventors: Wan Gyu HAHM, In Woo NAM, Seung Jin LEE, Do Kun KIM, Ki Sub LIM, Joo Hyung LEE, Gyu Dong LEE, Yeong Og CHOI, Byeong Jin YEANG
  • Publication number: 20180026899
    Abstract: Methods and apparatuses for controlling transmission control protocol (TCP) send buffers in communication systems are provided. The method includes identifying a current round-trip time (RTT) value and a minimum RTT value in the TCP and adjusting a size of the send buffer based on at least one of a current operation, the current RTT value, and the minimum RTT value in a congestion control scheme according to the TCP.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 25, 2018
    Applicant: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
    Inventors: Jin-Sung LEE, Young-Bin IM, Sangtae HA, Sang-Jun MOON, Jung-Shin PARK, Ji-Cheol LEE, Joo-Hyung LEE
  • Publication number: 20180026898
    Abstract: The present disclosure relates to a 5G or a pre-5G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. A method for controlling TCP congestion in a communication system provided in the present disclosure comprises the steps of: determining the maximum transmission rate of a network, while increasing the size of a congestion window at a predetermined time interval; determining a threshold transmission rate which is determined by a preset ratio with regard to the determined maximum transmission rate; and adjusting the size of the congestion window such that the current transmission rate is not less than the threshold transmission rate and the delay time is no longer than the maximum allowable delay time.
    Type: Application
    Filed: January 28, 2016
    Publication date: January 25, 2018
    Inventors: Jin-Sung Lee, Kyunghan Lee, Jung-Shin Park, Han-Na Lim, Joo-Hyung Lee
  • Patent number: 9875693
    Abstract: A data driver includes a data signal converter to convert image data to a data signal, an output buffer to output the data signal to a data line, a first cascode circuit connected to the output buffer and including a plurality of transistors, a first noise attenuator connected to a first node between the output buffer and the first cascode circuit, and to attenuate a first current noise, a second cascode circuit connected to the output buffer and including a plurality of transistors, a second noise attenuator connected a second node between the output buffer and the second cascode circuit, and to attenuate a second current noise, a current integrator to generate an integrated voltage by integrating a first current flowing through the first cascode circuit and a second current flowing through the second cascade circuit, and an analog-digital converter (ADC) to convert the integrated voltage to a digital signal.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: January 23, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Oh-Jo Kwon, Ji-Woong Kim, Choong-Sun Shin, Joo-Hyung Lee, Jun-Suk Bang, Gyu-Hyeong Cho
  • Publication number: 20180019152
    Abstract: An adhesive tape sticking apparatus includes a chamber includes a lower chamber and an upper chamber. The lower chamber includes a first inner space and the upper chamber includes a second inner space. An adhesive tape sheet is positioned between the upper chamber and the lower chamber. A substrate support is movable upward and downward within the lower chamber and is configured to support a substrate. A differential pressure generator is configured to generate a differential pressure between the first inner space and the second inner space. A tape support plate positioned between a first sidewall of the lower chamber and a circumferential edge of the substrate. The tape support plate is configured to contact at least a portion of the adhesive tape sheet when the adhesive tape sheet bends downward toward the first inner space when the differential pressure is generated between the first and second inner spaces.
    Type: Application
    Filed: February 27, 2017
    Publication date: January 18, 2018
    Inventors: YOUNG-MIN KIM, JOO-HYUNG LEE, HAE-GU LEE
  • Publication number: 20170353849
    Abstract: The present disclosure relates to a 5G or a pre-5G communication system to be provided in order to support a higher data transmission rate than a 4G communication system such as LTE. The present invention provides a method for receiving, by a terminal, a mobile end service in a communication system, the method including: a step of ascertaining whether there exists a continuously available service among services which have been provided from a serving base station, on the basis of a list of supported services received from a target base station; and in the case that there exists a continuously available service, a step of transmitting a service area update request to the target base station via a connection layer if the continuously available service supports a mobile end service.
    Type: Application
    Filed: December 17, 2015
    Publication date: December 7, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Han-Na LIM, Jung-Shin PARK, Joo-Hyung LEE, Jin-Sung LEE
  • Patent number: 9830033
    Abstract: A touch sensor includes a touch substrate including a touch sensing area and a non-sensing area outside the touch sensing area, touch electrodes disposed in the touch sensing area and configured to sense a touch, and touch wiring connected to the touch electrodes in the non-sensing area, in which the touch wiring includes a first wiring conductive layer, a second wiring conductive layer disposed on the first wiring conductive layer, and transparent layers disposed at first and second sides of the second wiring conductive layer and on the first wiring conductive layer.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: November 28, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung Ha Son, Jae Neung Kim, Yong-Hwan Ryu, Yun Jong Yeo, Joo Hyung Lee, Yu-Gwang Jeong
  • Publication number: 20170279725
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to various embodiments, a device of an intermediate node comprises: a receiving unit configured to receive a signal for determining a buffer threshold value of at least one terminal; and a control unit configured to determine a buffer threshold value of the terminal on the basis of the signal, and determine a size of data to be requested to at least one server according to the determined buffer threshold value of the terminal.
    Type: Application
    Filed: August 27, 2015
    Publication date: September 28, 2017
    Inventors: Jin-Sung Lee, Jung-Shin Park, Han-Na Lim, Beom-Sik Bae, Hyung-Ho Lee, Joo-Hyung Lee
  • Publication number: 20170278480
    Abstract: An electronic device and a method of operating the same are provided. The electronic device includes a base, a fixed head disposed on an upper portion of the base, a drive unit that is disposed in an inner space of the fixed head, a movable head that surrounds at least a portion of the fixed head and is arranged to be movable by being fixed to at least a portion of the drive unit, at least one sensor module that is disposed in at least a portion of the movable head, and at least one processor that detects an input by the sensor module and controls the drive unit to cause the movable head to move in a determined direction according to an input detection parameter. Other various embodiments may be made.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 28, 2017
    Inventors: Won-Kyu SUNG, Jangwoon KIM, Jaeho BAIK, Wonho SHIN, Byungchan LEE, Joo-Hyung LEE, Woohyeok JEONG, Dong-Il SON
  • Patent number: 9773455
    Abstract: An organic light emitting display device includes a plurality of pixels in a display area; a data driver configured to supply a data signal to the pixels; and a data converter configured to output a correction image data utilized in generation of the data signal, and the data converter is configured to generate a stress data corresponding to an input image data, to accumulate and store at least a portion of the stress data in a compressed state, and to generate the correction image data obtained by correcting the input image data according to the accumulated stress data.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: September 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gun-Hee Chung, Hyun-Seuk Yoo, Jun-Jin Kong, Hong-Rak Son, Madhusudan Singh, Jong-Woong Park, Joo-Hyung Lee
  • Publication number: 20170273126
    Abstract: The present disclosure relates to a 5G or pre-5G communication system that is provided so as to support higher data transmission rates after 4G communication systems such as LTE. In addition, the present disclosure relates to a method and an apparatus for configuring a disconnected TCP connection in a communication system, and a handover support method and apparatus therefor. The method for a TCP proxy configuring a TCP connection in a communication system according to the present disclosure comprises the steps of: configuring a tunnel for receiving/transmitting data with a base station; and according to a TCP connection request by a terminal, configuring a first TCP connection between the terminal and the TCP proxy, and configuring a second TCP connection between the TCP proxy and a service server of an IP network.
    Type: Application
    Filed: December 1, 2015
    Publication date: September 21, 2017
    Inventors: Han-Na Lim, Jung-Shin Park, Joo-Hyung Lee, Jin-Sung Lee, Hyung-Ho Lee
  • Patent number: 9696753
    Abstract: A touch panel with improved optical characteristics, thin-film characteristics, durability, and reliability is presented.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: July 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo Hyung Lee, Ja Seung Ku, Hyoung Wook Jang, Soon Sung Ahn
  • Patent number: 9697765
    Abstract: An organic light emitting display and a method for driving the organic light emitting display. The organic light emitting display includes a display unit, a data accumulator, and a data compensator. The display unit is configured to be driven by image data. The data accumulator is configured to compress and accumulate first data corresponding to a first portion of the image data for driving a first region of the display unit, identify a second region of the display unit from the first region by analyzing the accumulated first data, and compress and accumulate second data corresponding to a second portion of the image data for driving the second region with a compression ratio based on a size of the second region. The data compensator is configured to compensate the image data based on the accumulated first and second data.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: July 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gun-Hee Chung, Hyun-Seuk Yoo, Jong-Woong Park, Joo-Hyung Lee, Chang-Kyu Seol, Jun-Jin Kong, Hong-Rak Son
  • Patent number: D800140
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: October 17, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo-Hyung Lee, You-Jin Im, So-Ra Kim, Hye-Bin Park