Patents by Inventor In-Yong Hwang

In-Yong 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).

  • Publication number: 20170034948
    Abstract: Disclosed embodiments relate to a cabinet for electric devices and, more particularly, to a cabinet for electric devices which is capable of regulating flow of air employed as a cooling medium to uniformly cool the interior of the cabinet. In some embodiments, the cabinet includes a plurality of device accommodation spaces for accommodating the electric devices in a stacking manner, a ventilation duct for discharging heat generated from the device accommodation spaces, a heat dissipation fan for discharging hot air from the ventilation duct, and a plurality of connection ducts for connecting the device accommodation spaces to the ventilation duct, wherein a flow rate and flow velocity of air passing through each of the connection ducts is adjusted by differentiating flow resistances in the connection ducts provided to the respective layers from each other.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 2, 2017
    Inventor: Soo-Yong HWANG
  • Patent number: 9534369
    Abstract: According to one aspect of the invention, an inlet of an underground reservoir having a multiple-stage structure includes: a flow portion, wherein water flowing in the flow portions; a drop portion transporting the water to a underground reservoir from the flow portion; and an inlet portion having a multiple-stage structure to generate a vortex in the water to be transported to the drop portion.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: January 3, 2017
    Assignee: Korea Institute of Construction Technology
    Inventors: Dong Sop Rhee, Gil Je Cho, Du Han Lee, Seung Yong Hwang, Myoung Hwan Kim
  • Publication number: 20160381715
    Abstract: A base station infers a random access failure rate depending on a random access collision of terminals performing random access and controls a random access opportunity of a terminal that fails the random access by using the random access failure rate of each terminal. Also, information for the controlled random access opportunity is transmitted to the terminal that fails the random access.
    Type: Application
    Filed: June 24, 2016
    Publication date: December 29, 2016
    Inventors: Changhee LEE, Taesoo KWON, Jae Heung KIM, Jung-Im KIM, Ok-Sun PARK, JaeSheung SHIN, Sung-Min OH, Hyun-yong HWANG
  • Publication number: 20160381713
    Abstract: Disclosed is a random access method and device. A terminal generates a random number for a random access, and compares the random number and a setting value. When the random number is included in the setting value, the terminal transmits a preamble for a random access to a base station and attempts a random access.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 29, 2016
    Inventor: Hyun-Yong HWANG
  • Publication number: 20160370652
    Abstract: A display apparatus includes plural light source units each including a light emitting device and a lens portion; a reflection sheet defining plural holes thereof and into which the light source units are respectively disposed; and a display panel on the reflection sheet. The lens portion defines: a body portion; and plural side protruding portions and respectively at opposing sides of the body portion in a first direction in a top plan view. The hole of the reflection sheet is defined by: an edge of a first hole; an edge of a second hole facing the first hole in a second direction crossing the first direction, the second hole larger than the first hole; and slanted edges connecting the first hole to the second hole. In a fixed state of the reflection sheet, a predetermined area of the reflection sheet adjacent to the slanted edges overlaps the side protruding portions.
    Type: Application
    Filed: February 22, 2016
    Publication date: December 22, 2016
    Inventors: Seong-yong HWANG, Byung-seo YOON, Yong-hwi KIM, Minjeong KIM, Hyunjin MAENG, Kisoo PARK, Soonick JANG
  • Patent number: 9511321
    Abstract: The present invention relates to an adsorption-type air drying system, of which the object is to simplify the flow paths of the system, reduce the number of the components such as a valve intricately controlled according to the state of operation, and decrease the cost for constructing the system. Furthermore, the object of the present invention is to provide an adsorption-type air drying system which may be used under various pressure conditions, and smoothly operated regardless of the pressure change of the system by way of a structure compensating for the pressure loss generated during non-purge operation.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: December 6, 2016
    Inventor: Chul Yong Hwang
  • Patent number: 9507177
    Abstract: A backlight assembly and a display including the same are disclosed. In one aspect, the backlight assembly includes a light source unit, a light guide plate including a light incident surface and a light facing surface formed on opposing ends thereof. The light incident surface receiving light irradiated from the light source surface. The backlight assembly also includes a first reflective member placed on the light facing surface and including a plurality of first color patterns facing the light facing surface.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: November 29, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Won Lee, Seong Yong Hwang, Da Woon Kim
  • Patent number: 9503036
    Abstract: A power amplifier having a stack structure, including: a first driver stage that receives a power voltage from a power supply and receives and amplifies an input signal; a second driver stage that has a power input terminal connected with a ground terminal of the first driver stage and receiving a virtual power voltage and an input terminal connected with an output terminal of the first driver stage, and receives and amplifies an output signal from the first driver stage; and a power stage that receives the power voltage from the power supply, has an input terminal connected with an output terminal of the second driver stage, and receives and amplifies an output signal from the second driver stage.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: November 22, 2016
    Assignee: SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARK
    Inventors: Ho Yong Hwang, Chang Kun Park
  • Patent number: 9491759
    Abstract: A method and a device for assigning connection identifiers for a device-to-device communication are provided. The method includes checking unused connection identifiers among all entire connection identifiers that can be used for the device-to-device communication, determining a certain number of candidate connection identifiers to be used for the device-to-device communication with the peer user equipment among the unused connection identifiers, transmitting first information relating to data characteristics of a connection to be generated with the peer user equipment to the peer user equipment, and receiving second information relating to at least one connection identifier selected in consideration of the data characteristics based on the first information from the peer user equipment. The second information indicates that at least one connection identifier mapped to respectively different time resource regions is assigned to the connection.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: November 8, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Pil-Yong Hwang
  • Patent number: 9482899
    Abstract: Provided is a backlight unit including a printed circuit board, a light-emitting diode package, a diffusion plate, and a reflection sheet. The light-emitting diode package including a light-emitting part configured to generate a first light. The diffusion plate includes a first diffusion pattern provided on a first region corresponding to the light-emitting diode package and a second diffusion pattern provided on a second region to have a transmittance higher than that of the first diffusion pattern. The reflection sheet includes an absorption pigment configured to absorb a fraction of the first light with a specific wavelength and converting the first light to a second light, and the reflection sheet is configured to reflect the second light toward the first diffusion pattern. The backlight unit can have improved color coordinate uniformity.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: November 1, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang-Woo Lee, JoongHyun Kim, Sung-Kyu Shim, Seong-Yong Hwang, Dawoon Kim
  • Publication number: 20160307389
    Abstract: The purpose of the present invention is to provide a medium processing apparatus capable of efficiently processing a medium by shortening the length of a check returning path by spatially separately forming spaces for storing checks and banknotes in the medium processing apparatus.
    Type: Application
    Filed: November 19, 2014
    Publication date: October 20, 2016
    Inventors: Jae Hoon KWAK, Chang Ho PARK, Jin Hwan CHA, Jin Yong HWANG
  • Publication number: 20160291408
    Abstract: A display device includes a display panel which displays an image, a backlight unit which generates light and emits the light toward the display panel, a supporting member which supports edge parts of the display panel, and an accommodation member defining an accommodation space in which the backlight unit and the supporting member are disposed. In the accommodation space, the backlight unit includes a light source which generates the light, and a side-emitting lens which covers the light source and through which the light generated by the light source is emitted. In the accommodation space, the supporting member defines a plurality of stepped parts, where the plurality of stepped parts extended toward the light source has a light reflecting characteristic.
    Type: Application
    Filed: September 15, 2015
    Publication date: October 6, 2016
    Inventors: Byung-seo YOON, Sanghoon LEE, Seong-yong HWANG
  • Publication number: 20160293814
    Abstract: Provided is a LED light source package comprising a circuit board, a light source seated on an upper portion of the circuit board, and a lens structure arranged on the upper portion of the circuit board via the light source. A surface that faces the light source in the lens structure includes a first inclined surface that projects toward the light source as going to a center portion of the lens structure.
    Type: Application
    Filed: June 13, 2016
    Publication date: October 6, 2016
    Inventors: Byung Seo YOON, Seong Yong HWANG, Kyung Min KIM, Young Min PARK
  • Publication number: 20160223868
    Abstract: A display device includes an optical member, a display panel disposed on the optical member, and a plurality of light emitting units disposed under the optical member, the optical member comprising, a diffusion layer, and a reflectivity control layer which is disposed under the diffusion layer and reflects a light provided from the light emitting units, including a first base material, reflective materials dispersed in the first base material, a plurality of first portions corresponding to the plurality of light emitting units, and a second portion disposed adjacent to the first portions, where each of the plurality of first portions comprises a greater amount of the reflective materials than the second portion, when a first portion and a second portion represent a unit area having a predetermined size.
    Type: Application
    Filed: April 13, 2016
    Publication date: August 4, 2016
    Inventors: Juhwa HA, Seong-Yong HWANG, Dohun KIM, Young-Min PARK, Yongkyu KANG, Byung-Seo YOON, Juyoun SON
  • Publication number: 20160189960
    Abstract: Provided is a method of manufacturing a nanowire array using induced growth, in which a nitride inorganic nanowire is grown from a nitride seed by forming the nitride seed on a sapphire or silicon substrate, forming an organic nanowire pattern and a dielectric nanotunnel using the nanowire pattern as a template on the nitride seed, and using the nanotunnel as an induced growth mask.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 30, 2016
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Jun Hyuk PARK, Jong Kyu KIM, Sun Yong HWANG
  • Patent number: 9379297
    Abstract: Provided is a LED light source package comprising a circuit board, a light source seated on an upper portion of the circuit board, and a lens structure arranged on the upper portion of the circuit board via the light source. A surface that faces the light source in the lens structure includes a first inclined surface that projects toward the light source as going to a center portion of the lens structure.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: June 28, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung Seo Yoon, Seong Yong Hwang, Kyung Min Kim, Young Min Park
  • Publication number: 20160146408
    Abstract: A manufacturing method of a display apparatus includes providing a backlight unit under a display panel to provide a light to the display panel. The providing of the backlight unit includes disposing a light source on a substrate to emit the light, disposing a mask above the light source, which includes a first opening and a second opening greater than the first opening disposed under the first opening, and providing a transparent resin including a wavelength converting material on the light source through the first and second openings to form a wavelength converting member. A width in a cross section of the wavelength converting member along a direction substantially vertical to the substrate becomes smaller as a distance from the substrate becomes greater.
    Type: Application
    Filed: June 24, 2015
    Publication date: May 26, 2016
    Inventors: Eui Jeong KANG, Seong-Yong HWANG, Hyuk-Hwan KIM, Young-keun LEE
  • Patent number: 9347651
    Abstract: A display device includes an optical member, a display panel disposed on the optical member, and a plurality of light emitting units disposed under the optical member, the optical member comprising, a diffusion layer, and a reflectivity control layer which is disposed under the diffusion layer and reflects a light provided from the light emitting units, including a first base material, reflective materials dispersed in the first base material, a plurality of first portions corresponding to the plurality of light emitting units, and a second portion disposed adjacent to the first portions, where each of the plurality of first portions comprises a greater amount of the reflective materials than the second portion, when a first portion and a second portion represent a unit area having a predetermined size.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: May 24, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Juhwa Ha, Seong-Yong Hwang, Dohun Kim, Young-Min Park, Yongkyu Kang, Byung-Seo Yoon, Juyoun Son
  • Publication number: 20160127243
    Abstract: Methods for flow control in a network are disclosed. In a dual connectivity network environment where a master base station and a secondary base station exist, an operation method of a master base station may comprise transmitting a data frame including a plurality of data packets to a secondary base station; receiving, from the secondary base station, a delivery status frame requesting retransmission of error data packet among the plurality of data packets; and retransmitting the error data packet indicated by the delivery status frame to the secondary base station. Therefore, network performance can be enhanced.
    Type: Application
    Filed: November 3, 2015
    Publication date: May 5, 2016
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyun Yong HWANG, Ae Soon PARK, Kyoung Seok LEE
  • Patent number: 9310546
    Abstract: A backlight unit includes a light source which generates light, a light guide plate which guides the light substantially in an upward direction, a first frame member which holds the light source and diffuses the light traveling substantially in the upward direction between the light source and the light guide plate, a second frame member which holds the light guide plate, a third frame member which holds the light guide plate, a reflective plate disposed under the light guide plate and which reflect the light leaked downwardly from the light guide plate substantially to the upward direction, and an optical sheet disposed on the light guide plate and the first to third frame members and which diffuses the light provided from the first frame member and the light guide plate and condenses the light substantially in the upward direction.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: April 12, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dohun Kim, Jiwon Lee, Seong-Yong Hwang, Hyun-Hwa Song, Sangheon Ye, Sang Hoon Lee