Patents by Inventor Dong Hwang

Dong Hwang 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).

  • RECEIVER CIRCUIT AND SYSTEM USING THE SAME
    Publication number: 20170230018
    Abstract: A receiver circuit may be provided. The receiver circuit may include a first duty cycle adjuster configured to correct a duty cycle of a first output signal pair. The receiver circuit may include a second duty cycle adjuster configured to correct a duty cycle of a second output signal pair, based on the first output signal pair, after the first duty cycle adjuster performs a correction on the duty cycle of the first output signal pair.
    Type: Application
    Filed: May 3, 2016
    Publication date: August 10, 2017
    Inventor: Kyu Dong HWANG
  • Error detecting apparatus for gate driver, display apparatus having the same and method of detecting error of gate driver
    Patent number: 9672087
    Abstract: Exemplary embodiments of present invention relate to an error detecting apparatus for a gate driver improving a reliability of a display apparatus, a display apparatus having the error detecting apparatus, and a method of detecting an error of the gate driver using the error detecting apparatus. An exemplary embodiment discloses an error detecting apparatus including an error detecting part configured to receive a gate signal of a gate driver and determine whether a status of the gate driver is in a normal status or an error status based on the gate signal, a memory configured to store the status of the gate driver, and a signal outputting part configured to selectively output a clock signal and an error signal based on the status of the gate driver stored in the memory.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: June 6, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Jae Lee, Eui-Dong Hwang, Bon-Sung Koo, Jun-Dal Kim, Seung-Hwan Moon, Dong-Won Park
  • Display device and driving method thereof
    Patent number: 9666135
    Abstract: Provided is a display device, including: a plurality of pixels; a scan driver connected to a plurality of scanning lines connected to the plurality of pixels; and a gate signal generator configured to determine a level of a gate-on voltage according to ambient temperature and to supply the gate-on voltage to the scan driver, wherein the gate signal generator is further configured to apply a hysteresis characteristic to a thermistor voltage to vary according to the ambient temperature.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: May 30, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bon-Sung Koo, Jong Jae Lee, Eui-Dong Hwang, Jun Dal Kim, Yang Uk Nam
  • Interference alignment method and apparatus in wireless communication system
    Patent number: 9654987
    Abstract: An interference alignment method and apparatus in a wireless communication system are provided. A method of a serving Base Station (BS) for uplink interference alignment in a wireless communication system includes estimating a channel for at least one served Mobile Station (MS), estimating an interference channel for at least one neighboring MS, exchanging information about an interference channel with at least one neighboring BS, determining a precoding vector of each of the at least one served MS for configuring interference from all of the at least one neighboring MS as one spatial dimension, and transmitting the determined precoding vector to each of the at least one served MSs.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: May 16, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Duck-Dong Hwang
  • Interface circuit including buffer circuit for high speed communication, semiconductor apparatus and system including the same
    Patent number: 9590625
    Abstract: A buffer circuit may include an amplification unit and an active load unit. The amplification unit is electrically coupled to an output node and configured to sense and amplify first and second signals. The active load unit is configured to form a peak of a signal outputted from the output node when the signal transitions.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: March 7, 2017
    Assignee: SK hynix Inc.
    Inventor: Kyu Dong Hwang
  • Method and apparatus for opportunistic user scheduling of two-cell multiple user MIMO
    Patent number: 9504047
    Abstract: An apparatus and a method for opportunistic user scheduling of two-cell multiple user Multiple Input Multiple Output (MIMO) by a base station, the method comprising: broadcasting signals through random beams to users; and receiving Channel Quality Information (CQI) from best K user set. The CQI is calculated based on all possible combinations of transmit beamforming vectors.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: November 22, 2016
    Assignees: Samsung Electronics Co., Ltd, Purdue Research Foundation
    Inventors: Ki-Il Kim, Duck-Dong Hwang, Clerckx Bruno, Tae-Joon Kim, David J. Love
  • HIGH-VOLTAGE DC CIRCUIT BREAKER
    Publication number: 20160322178
    Abstract: The present invention relates to a high-voltage direct current (DC) circuit breaker which interrupts a fault current flowing in a power transmission or power distribution DC line when a fault occurs in the DC line.
    Type: Application
    Filed: December 24, 2014
    Publication date: November 3, 2016
    Inventors: Jung-Soo PARK, Se-Hee HAN, Hui-Dong HWANG
  • DIRECT CURRENT CIRCUIT BREAKER USING MAGNETIC FIELD
    Publication number: 20160322179
    Abstract: The present invention relates to a direct current (DC) circuit breaker using a magnetic field, for generating a magnetic flux in a direction vertical to the direction of an arc current generated in a main switch so as to increase resistance to the arc current and for continuously supplying a circulating current from a DC line so as to further increase the magnetic flux and thus continuously increase the resistance to the arc current, thereby extinguishing an arc.
    Type: Application
    Filed: December 24, 2014
    Publication date: November 3, 2016
    Inventors: Hui-Dong HWANG, Byung-Chol KIM, Jung-Soo PARK
  • BIDIRECTIONAL DIRECT CURRENT CIRCUIT BREAKER
    Publication number: 20160322177
    Abstract: The present invention relates to a bidirectional direct current (DC) circuit breaker for interrupting a fault current flowing through a DC line for power transmission or distribution in case a fault occurs at one side of the DC line.
    Type: Application
    Filed: December 24, 2014
    Publication date: November 3, 2016
    Inventors: Hui-Dong HWANG, Young-Hwan CHUNG, Nam-Kyung KIM
  • INTERFACE CIRCUIT INCLUDING BUFFER CIRCUIT FOR HIGH SPEED COMMUNICATION, SEMICONDUCTOR APPARATUS AND SYSTEM INCLUDING THE SAME
    Publication number: 20160254814
    Abstract: A buffer circuit may include an amplification unit and an active load unit. The amplification unit is electrically coupled to an output node and configured to sense and amplify first and second signals. The active load unit is configured to form a peak of a signal outputted from the output node when the signal transitions.
    Type: Application
    Filed: June 18, 2015
    Publication date: September 1, 2016
    Inventor: Kyu Dong HWANG
  • Antenna structure in wireless communication system and operation method thereof
    Patent number: 9407007
    Abstract: An antenna device in a wireless communication includes antenna wires of four sides which include three feeding points and have a loop structure and four main switches which are located among the antenna wires of the four sides, wherein the antenna device operates as a loop antenna when the antenna wires of the four sides are connected according to operations of the main switches and wherein the antenna device operates as dipole antennas when the antenna wires of the four sides are disconnected according to operations of the main switches.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 2, 2016
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Duck-Dong Hwang, Chul-Soon Park, In-Sang Song, Inn-Yeal Oh, Chae-Jun Lee
  • HIGH VOLTAGE DC CIRCUIT BREAKER
    Publication number: 20160204595
    Abstract: A high-voltage DC circuit breaker for breaking a current that flows in a DC line, including: a main switch, installed on the DC line, for breaking a current of the DC line by opening when a fault occurs on one side or a remaining side of the DC line; a nonlinear resistor connected in parallel with the main switch; an LC circuit that is connected in parallel with the main switch and includes a capacitor and a reactor, which are connected in series in order to generate LC resonance; a first bidirectional switching element, connected to the LC circuit in series, for switching a bidirectional current flow; and a second bidirectional switching element, connected in parallel with the LC circuit, for switching a current flow to induce LC resonance in both directions.
    Type: Application
    Filed: August 14, 2014
    Publication date: July 14, 2016
    Applicant: HYOSUNG CORPORATION
    Inventors: Jung-Soo PARK, Se-Hee HAN, Hui-dong HWANG
  • Method and apparatus for interference alignment in a wireless communication system
    Patent number: 9391730
    Abstract: The present invention relates to a method and apparatus for interference alignment in a wireless communication system.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: July 12, 2016
    Assignees: Samsung Electronics Co., Ltd., Purdue Research Foundation
    Inventors: Bruno Clerckx, Duck Dong Hwang, Chun Kin Au Yeung, David James Love, Tae Joon Kim
  • APPARATUS FOR CONTROLLING CAMBER AND METHOD FOR SAME
    Publication number: 20160038984
    Abstract: Provided is a camber control apparatus and method capable of reducing camber of a slab sizing press (SSP). The camber control apparatus and method may calculates a camber amount through an imaging process and differently set zeroing of anvils at a work side and a drive side, thereby reducing camber. Thus, the camber control apparatus and method can reduce quality defects such as telescope, twist, wave, and roll mark, increase the lifetime of equipment by reducing a variation in load applied to the equipment, and minimize a cost caused by an equipment accident.
    Type: Application
    Filed: December 27, 2013
    Publication date: February 11, 2016
    Inventors: Jin-Dong Hwang, Hyeong-jin Kim, Yong-kook Park, Woo-Young Shin
  • Voltage generator and display device having the same
    Patent number: 9257099
    Abstract: A display device including a voltage generator is disclosed. The voltage generator includes an analog driving voltage generator to convert a source voltage from an external source to an analog driving voltage and to output the analog driving voltage through an output terminal, a capacitor connected between the output terminal and a ground voltage node, and a discharge circuit connected between the output terminal and the ground voltage node to discharge a current at the output terminal in response to a blank synchronization signal.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: February 9, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bon-Sung Koo, Jong Jae Lee, Eui-Dong Hwang
  • Thermoelectric material and method for manufacturing the same
    Patent number: 9123857
    Abstract: A thermoelectric material and a method for manufacturing the same are provided. The thermoelectric material includes a mixture of nano-thermoelectric crystal particles, micron-thermoelectric crystal particles and nano-metal particles.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: September 1, 2015
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsu-Shen Chu, Jenn-Dong Hwang, Chia-Chan Hsu, Tse-Hsiao Lee, Hong-Bin Wang
  • DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF
    Publication number: 20150212378
    Abstract: A display device and manufacturing method thereof. The display device includes a first substrate and a second substrate formed to face each other; a liquid crystal layer between the first and second substrates; a plurality of gate wirings and data wirings intersecting each other to form a plurality of pixel regions on the second substrate; and a first ground wiring formed on the first substrate configured to block a surge voltage from being applied to the pixel regions.
    Type: Application
    Filed: January 27, 2015
    Publication date: July 30, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eui-Dong HWANG, Jeong Ho BANG, Yong Hwan PARK
  • Multi-layer thermoelectric module and method for fabricating the same
    Patent number: 9048388
    Abstract: A multi-layer thermoelectric module and a fabricating method thereof are provided. The module includes two thermoelectric element sets and a metal electrode set, in which the thermoelectric element sets are corresponding to different operating temperature ranges. Each thermoelectric element set includes a thermoelectric unit, an interfacial adhesion layer, a diffusion barrier layer and a high melting-point metal layer. In the method, the thermoelectric unit, the interfacial adhesion layer, and the diffusion barrier layer are sequentially formed on the thermoelectric unit. Then, two high melting-point metal layers are formed respectively on the electrode layers of the metal electrode set.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: June 2, 2015
    Assignee: CHINA STEEL CORPORATION
    Inventors: Jing-Yi Huang, Huey-Lin Hsieh, Tung-Han Chuang, Jenn-Dong Hwang, Chao-Chi Jain
  • DISPLAY DEVICE AND DRIVING METHOD THEREOF
    Publication number: 20150115826
    Abstract: Provided is a display device, including: a plurality of pixels; a scan driver connected to a plurality of scanning lines connected to the plurality of pixels; and a gate signal generator configured to determine a level of a gate-on voltage according to ambient temperature and to supply the gate-on voltage to the scan driver, wherein the gate signal generator is further configured to apply a hysteresis characteristic to a thermistor voltage to vary according to the ambient temperature.
    Type: Application
    Filed: July 11, 2014
    Publication date: April 30, 2015
    Inventors: Bon-Sung KOO, Jong Jae LEE, Eui-Dong HWANG, Jun Dal KIM, Yang Uk NAM
  • ERROR DETECTING APPARATUS FOR GATE DRIVER, DISPLAY APPARATUS HAVING THE SAME AND METHOD OF DETECTING ERROR OF GATE DRIVER
    Publication number: 20150026506
    Abstract: Exemplary embodiments of present invention relate to an error detecting apparatus for a gate driver improving a reliability of a display apparatus, a display apparatus having the error detecting apparatus, and a method of detecting an error of the gate driver using the error detecting apparatus. An exemplary embodiment discloses an error detecting apparatus including an error detecting part configured to receive a gate signal of a gate driver and determine whether a status of the gate driver is in a normal status or an error status based on the gate signal, a memory configured to store the status of the gate driver, and a signal outputting part configured to selectively output a clock signal and an error signal based on the status of the gate driver stored in the memory.
    Type: Application
    Filed: July 15, 2014
    Publication date: January 22, 2015
    Inventors: Jong-Jae LEE, Eui-Dong HWANG, Bon-Sung KOO, Jun-Dal KIM, Seung-Hwan MOON, Dong-Won PARK