Patents by Inventor Hyuk Chang

Hyuk Chang 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: 9729602
    Abstract: Technologies are generally described for a method for measuring a quality of an audio signal in a mobile device. In some examples, the mobile device includes a receiving unit configured to receive an audio signal transmitted from another device; an audio quality measuring unit configured to measure a quality of the received audio signal; and a transmission unit configured to transmit the measured quality of the audio signal to the another device.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: August 8, 2017
    Assignee: INHA-INDUSTRY PARTNERSHIP INSTITUTE
    Inventor: Joon-Hyuk Chang
  • Patent number: 9726982
    Abstract: A maskless exposure device including a light source configured to emit an exposure beam, a light modulation element configured to modulate the exposure beam according to an exposure pattern, a projection optical system configured to transfer a modulated exposure beam to a substrate as a beam spot array, a beam measurement part configured to measure a beam data of the beam spot array, and a compensating mask generator configured to generate a compensating mask by utilizing a measured data of the exposure beam for compensating cumulative illumination, wherein the compensating mask generator is configured to turn off left and right beams of a first selected spot beam selected by the beam data, and then to turn off a second selected spot beam.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: August 8, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hi-Kuk Lee, Jae-Young Jang, Jae-Hyuk Chang, Sang-Don Jang
  • Patent number: 9690204
    Abstract: A maskless exposure device includes an exposure head including a digital micro-mirror device, the digital micro-mirror device being configured to scan an exposure beam to a substrate by reflecting a source beam from an exposure source; and a system control part configured to control the digital micro-mirror device by utilizing a graphic data system file. The graphic data system file includes data for a source electrode, a drain electrode and a channel portion between the source electrode and the drain electrode in a plan view. The channel portion includes a first portion extending in a direction perpendicular to a scan direction of the exposure head. A width of the first portion of the channel portion is defined to be a multiple of a pulse event generation of the exposure beam.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: June 27, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hyun Lee, Hyun-Seok Kim, Jung-Chul Heo, Hi-Kuk Lee, Sang-Hyun Yun, Ki-Beom Lee, Chang-Hoon Kim, Jung-In Park, Kab-Jong Seo, Jun-Ho Sim, Jae-Hyuk Chang
  • Publication number: 20170165582
    Abstract: A fantasy sports game managing apparatus includes a data processing and operation processing units. The operation processing unit stores pieces of daily fantasy sports game participation information including a game event selected by each of a plurality of users, a type of contest, a roster created by a user, and whether to use a player card, obtains game integration information included in sports game information from the data processing unit, and calculates a fantasy point of a lineup included in the roster of each user. When a player card is used in creating a roster, the operation processing unit calculates an additional point corresponding to performance of an athlete corresponding to the used player card according to a skill set included in the used player card, and adds up the calculated fantasy point and the additional point to determine a ranking of a contest according to the added fantasy point.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 15, 2017
    Inventors: Young Hoon Kim, Yong-Hyuk Chang
  • Patent number: 9663314
    Abstract: A flexible and continuous substrates-conveying sheet has a plurality of to be processed substrates disposed on or in it. A nondestructive transferring unit includes a plurality of first transferring rolls and a plurality of second transferring rolls. The first transferring rolls make contact with a first surface of the substrates-conveying sheet where that surface can have electrostatically-induced charge formed thereon. Each of the first transferring rolls includes a first central portion charged with a positive electric charge and a first outer portion surrounding the first central portion. The second transferring rolls make contact with the first surface of the substrates-conveying sheet. The second transferring rolls are disposed alternately with the first transferring rolls. Each of the second transferring rolls includes a second central portion charged with a negative electric charge and a second outer portion surrounding the second central portion.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: May 30, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jae-Hyuk Chang
  • Patent number: 9645450
    Abstract: Exemplary embodiments of the invention relate to an alignment apparatus including a source unit providing an electromagnetic signal, a receiving unit detecting the provided electromagnetic signal, and a polarization element positioned between the source unit and the receiving unit and having a transmissive axis fixed in a predetermined direction. A substrate may be positioned between the source unit and the receiving unit, and may be formed with a polarizer including a plurality of metal lines with a minute linear pattern. The luminance or intensity of the electromagnetic signal may be detected by the receiving unit while rotating the substrate.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: May 9, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hyuk Chang, Hi Kuk Lee, Cha-Dong Kim, Sang Hyun Yun, Jung-In Park, Chang Hoon Kim, Ki Beom Lee
  • Patent number: 9594307
    Abstract: An exposure apparatus includes a light source, an illuminating member, a projecting member, a stage, an inspecting member, and an information processing member. The light source is configured to provide a light in accordance with a pulse event generation (PEG) representing a period of light radiation. The illuminating member is configured to change the light into point lights. The projecting member is configured to project the point lights according to a photoresist shape extending in various directions. The point lights are projected on the stage. The inspecting member is configured to inspect a photoresist pattern formed by the projected point lights. The information processing member is configured to analyze different photoresist patterns corresponding to different PEGs to select one PEG from the different PEGs. The one PEG being associated with a minimum error in the various directions.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: March 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Cha-Dong Kim, Hoon Kang, Chang-Hoon Kim, Sang-Hyun Yun, Jung-In Park, Woo-Yong Sung, Ki-Beom Lee, Hi-Kuk Lee, Jae-Hyuk Chang
  • Patent number: 9583775
    Abstract: A method of operating a fuel cell system which is controlled by an electronic device includes: transmitting a bit stream including a bit string which indicates identification information of the fuel cell system and a bit string which indicates status information of the fuel cell system to the electronic device through a serial communication line; receiving a bit stream including a bit string which indicates control information of the fuel cell system from the electronic device through the serial communication line; obtaining the control information of the fuel cell system from the received bit stream; and controlling power production of a fuel cell by controlling operations of peripheral devices of the fuel cell system based on the obtained control information of the fuel cell system.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: February 28, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-jae Kim, Hye-jung Cho, Jin-ho Kim, Hyuk Chang
  • Patent number: 9541716
    Abstract: Integrated circuit device packages including optical elements are provided. The integrated circuit device package may include an integrated circuit device and a conductive pad on a first surface of the integrated circuit device. The conductive pad may be electrically connected to the integrated circuit device and may be configured to transmit an electrical signal. The integrated circuit device package may also include an optical element in the integrated circuit device and the optical element may be configured to transmit an optical signal through a second surface of the integrated circuit device that is opposite the first surface of the integrated circuit device.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: January 10, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho-Chul Ji, Seung-Hyuk Chang
  • Patent number: 9536539
    Abstract: A nonlinear acoustic echo signal suppression system and method using a Volterra filter is disclosed. The nonlinear acoustic echo signal suppression system includes an acoustic echo signal estimator configured to estimate a nonlinear acoustic echo signal by using a Volterra filter in a frequency filter, and a near-end talker speech signal generator configured to generate a near-end talker speech signal, in which the nonlinear acoustic echo signal is suppressed, by using a gain function based on a statistical model.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: January 3, 2017
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Joon Hyuk Chang, Ji Hwan Park
  • Patent number: 9534801
    Abstract: A wall mount-type evaporative humidifier according to an embodiment of the present invention includes a main body mounted on a wall and having an air intake port and an air blower port formed therein, a ventilator disposed within the main body and configured to suck air into the air intake port and blow the air toward the air blower port, a water guide disposed within the main body and having a water channel formed therein, a water tank configured to contain water in order to supply the water to the water guide and seated in the water guide, and a humidification filter configured to absorb water of the water guide and to supply moisture to air flowing toward the ventilator and seated in the water guide. The present invention is advantageous in that it can realize a humidifying effect and a cooling effect at the same time, has the high utilization of space, and can control the humidity of the entire room rapidly and uniformly.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: January 3, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Yong Hyuk Choi, Chin Hyuk Chang, Dong Wook Kim, Jae Hun Jung, Arunesh Kr Singh, Yo Sang Jung
  • Patent number: 9535333
    Abstract: A maskless exposure device includes a plurality of exposure heads, each exposure head including a digital micro-mirror device configured to scan an exposure beam to a substrate, the exposure heads being disposed in staggered first and second rows, a plurality of reflecting members disposed on side surfaces of the exposure heads and having reflecting surfaces parallel with each other, a light emitting part configured to light to the reflecting members, and a light receiving part configured to receive light via the reflecting members.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: January 3, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kab-Jong Seo, Hi-Kuk Lee, Jae-Hyuk Chang, Ki-Beom Lee
  • Publication number: 20160372135
    Abstract: An apparatus for processing a speech signal is provided.
    Type: Application
    Filed: June 14, 2016
    Publication date: December 22, 2016
    Inventors: Kang-eun LEE, Joon-hyuk CHANG, Byeong-yong JEON, Hyeon-seong KIM, Tae-jun PARK, Kwang-sub SONG, Tae-hyun YOON, Seong-hyeon CHOE, Hyun-chul CHOI
  • Patent number: 9481535
    Abstract: A vacuum roll-to-roll device includes: a first chamber; a second chamber neighboring the first chamber; a shutter disposed between the first chamber and the second chamber; a sealing member attached to the shutter; and a roll-type substrate which moves from the first chamber to the second chamber through the sealing member. A thickness of a lateral side of the roll-type substrate decreases in a direction toward an edge thereof.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: November 1, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Mi Kim, Gug Rae Jo, Jae Hyuk Chang, Seung-Jun Lee, Seung-Min Lee, Dae-Young Lee, Ki-Beom Lee
  • Patent number: 9466843
    Abstract: An electrode catalyst for a fuel cell, a membrane electrode assembly including the electrode catalyst, and a fuel cell including the electrode catalyst. The electrode catalyst has excellent electrochemical activity compared to the currently commercially available Pt/C catalyst and is much cheaper than a catalyst using platinum. The electrode catalyst includes tungsten carbide having a specific surface area of about 10 to about 30 m2/g, and a metal catalyst comprising palladium (Pd) or palladium alloy.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: October 11, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Chan-ho Pak, Dae-jong Yoo, Hyuk Chang, Dong-jin Ham, Sueng-hoon Han, Gang-hong Bae, Jae-sung Lee
  • Patent number: 9436098
    Abstract: A maskless exposure device includes an exposure head including a digital micro-mirror device. The digital micro-mirror device is configured to transmit a source beam applied from an exposure source to a substrate. A system control part is configured to control the digital micro-mirror device by using a graphic data system file. The graphic data system file includes data for forming a source electrode, a drain electrode and a channel portion disposed between the source electrode and the drain electrode. The graphic system file includes data for forming the channel portion extending in a diagonal direction with respect to a scan direction of the exposure head.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: September 6, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung-Chul Heo, Hi-Kuk Lee, Jae-Hyuk Chang, Sang-Hyun Lee, Jung-In Park, Sang-Hyun Yun, Ki-Beom Lee, Hyun-Seok Kim, Kab-Jong Seo, Jun-Ho Sim, Byoung-Min Yun, Sang-Don Jang, Jae-Young Jang, Chang-Hoon Kim
  • Publication number: 20160209756
    Abstract: Embodiments of the present invention provide a roll-to-roll exposure system having a reference mark array and alignment scope units for precisely measuring the position and orientation of an object on a flexible multilayered circuit film. A roll-to-roll exposure system according to an exemplary embodiment of the present invention includes: a plurality of rolls configured to move a flexible multilayered circuit film having an object positioned thereon; alignment scope units positioned so as to be spaced apart from each other and proximate to the rolls; and at least one exposure unit positioned so as to be spaced proximate to the rolls and spaced apart from sides of the alignment scope units, in which one of the rolls has a reference mark array on its surface.
    Type: Application
    Filed: November 5, 2015
    Publication date: July 21, 2016
    Inventors: Jae Hyuk CHANG, Sang Hyun YUN, Ki Beom LEE, Hi Kuk LEE
  • Publication number: 20160202615
    Abstract: A maskless exposure device includes a plurality of exposure heads, each exposure head including a digital micro-mirror device configured to scan an exposure beam to a substrate, the exposure heads being disposed in staggered first and second rows, a plurality of reflecting members disposed on side surfaces of the exposure heads and having reflecting surfaces parallel with each other, a light emitting part configured to light to the reflecting members, and a light receiving part configured to receive light via the reflecting members.
    Type: Application
    Filed: August 26, 2015
    Publication date: July 14, 2016
    Inventors: KAB-JONG SEO, Hi-Kuk Lee, Jae-Hyuk Chang, Ki-Beom Lee
  • Publication number: 20160195764
    Abstract: A display apparatus includes first, second and third substrates, first and second liquid crystal layers, first and second polarizing elements and a phase retarding element. The first substrate includes a first electrode part. The first liquid crystal layer is disposed on the first substrate. The second substrate is disposed on the first liquid crystal layer and includes a color filter and a second electrode part on a first surface and a third electrode part on a second surface. The second liquid crystal layer is disposed on the second substrate. The third substrate is disposed on the second liquid crystal layer and includes a fourth electrode part on a first surface. The first polarizing element is disposed under the first liquid crystal layer. The second polarizing element is disposed over the first liquid crystal layer. The phase retarding element is disposed over the second liquid crystal layer.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 7, 2016
    Inventors: DAE-YOUNG LEE, GUG-RAE JO, JAE-HYUK CHANG, YOUN-GU LEE
  • Publication number: 20160195806
    Abstract: A photoresist composition including 5 wt % to 10 wt % of a binder resin, 5 wt % to 10 wt % of a photopolymerization monomer, 1 wt % to 5 wt % of a photopolymerization initiator comprising an oxime ester-based compound and activated by light in a wavelength range of 400 nm to 410 nm, 5 wt % to 10 wt % of a black coloring agent, and a residual amount of a solvent.
    Type: Application
    Filed: October 13, 2015
    Publication date: July 7, 2016
    Inventors: Ki Beom LEE, Hyun-Seok KIM, Hi Kuk LEE, Jae Hyuk CHANG