Patents by Inventor Yong Seok Lee

Yong Seok 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).

  • Publication number: 20210318540
    Abstract: An optical device for realizing augmented reality comprises a lens comprising a first surface and side surfaces, a display device disposed on a first side surface among the side surfaces of the lens and displaying a first image in a first area and a second image in a second area, a first reflector disposed in the lens and reflecting the first image incident on the first side surface of the lens to the first surface, a second reflector disposed in the lens and reflecting the second image incident on the first side surface of the lens to the first surface, a first condenser disposed between the lens and the first area of the display device and focusing the first image on the first reflector, and a second condenser disposed between the lens and the second area of the display device and focusing the second image on the second reflector.
    Type: Application
    Filed: December 14, 2020
    Publication date: October 14, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyun Sup LEE, Yong Seok KIM, Jeong Woo PARK, Dong Chul SHIN, Gye Hwan LIM, Ju Hwa HA
  • Publication number: 20210319293
    Abstract: A neuromorphic device includes a synaptic array, including input lines extending in a first direction and receiving input signals independently from axon circuits connected thereto, bit lines extending in a second direction crossing the first direction and outputting output signals, cell strings that each include at least two resistive memristor elements and a string select transistor in series between an input line and a bit line, electrode pads stacked and spaced apart from each other between the input and bit lines and connected to the string select transistor and at least two resistive memristor elements, a decoder to apply a string selection signal or a word line selection signal to the electrode pads, and neuron circuits, each connected to one of the bit lines connected to one of the cell strings, summing the output signals, converting and outputting the summed signal when it is more than a predetermined threshold.
    Type: Application
    Filed: April 7, 2021
    Publication date: October 14, 2021
    Inventors: Kyung Hwan LEE, Yong Seok KIM, Hyun Cheol KIM, Satoru YAMADA, Sung Won YOO, Jae Ho HONG
  • Patent number: 11145820
    Abstract: An organic optoelectronic device and a display device including the same, the organic optoelectronic device including: an anode and a cathode facing each other; a light-emitting layer positioned between the anode and the cathode; a hole transport layer positioned between the anode and the light-emitting layer; an auxiliary hole transport layer positioned between the hole transport layer and the light-emitting layer; an electron transport layer positioned between the cathode and the light-emitting layer; and an auxiliary electron transport layer positioned between the electron transport layer and the light-emitting layer, wherein the auxiliary electron transport layer includes at least one kind of first compound represented by chemical formula 1, and the auxiliary hole transport layer includes at least one kind of second compound represented by a combination of a moiety represented by chemical formula 2, a moiety represented by chemical formula 3 and a moiety represented by chemical formula 4.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: October 12, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ho-Kuk Jung, Jae-Jin Oh, Dong-Wan Ryu, Su-Jin Han, Gi-Wook Kang, Eui-Su Kang, Youn-Hwan Kim, Hun Kim, Jae-Han Park, Yong-Tak Yang, Eun-Sun Yu, Han-Ill Lee, Woo-Seok Jeong
  • Patent number: 11144225
    Abstract: Embodiments of the present disclosure relate to a memory system, a memory controller, and a method of operating the same, and more particularly, to a memory system, a memory controller, and a method of operating the same, which calculate a read-attribute value, a write-attribute value, and a time-attribute value for a nonvolatile memory set and determine an operation mode of the nonvolatile memory set on the basis of at least one of the read-attribute value, the write-attribute value, and the time-attribute value, thereby enabling a host to predict whether or not a memory controller executes a background operation.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: October 12, 2021
    Assignee: SK hynix Inc.
    Inventors: Yong-Seok Oh, Hee-Chan Shin, Young-Ho Ahn, Do-Hyeong Lee, Jin-Yeong Kim
  • Patent number: 11137653
    Abstract: A display device includes a base, a semiconductor layer on the base and including source, drain and channel regions, a first insulating layer on the semiconductor layer, a gate line on the first insulating layer and overlapping the channel region, a second insulating layer on the gate line, a data line on the second insulating layer, a third insulating layer on the data line, a drain electrode disposed on the third insulating layer and in contact with the drain region through a contact hole in the first, second and third insulating layers, a first protective electrode on the drain electrode to overlap the drain electrode, a fourth insulating layer on the third insulating layer where the first protective electrode is formed, and a pixel electrode on the fourth insulating layer and in contact with the first protective electrode through a contact hole in the fourth insulating layer.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: October 5, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang Young Lee, Yong Seok Kim, Dong Chul Shin, Hyun Sup Lee, Gye Hwan Lim
  • Patent number: 11140646
    Abstract: Disclosed are a method and an apparatus for transmitting and receiving a synchronization signal in a communication system. According to an exemplary embodiment of the present disclosure, a method of transmitting a first synchronization signal, performed by a base station in the communication system, may comprise generating a base sequence; generating a modified sequence by inverting polarity of the base sequence; mapping the base sequence and the modified sequence to a first frequency region having a frequency higher than a center subcarrier and a second frequency region having a frequency lower the center subcarrier, so that the base sequence and the modified sequence are symmetric centering the center subcarrier located at a center frequency of a frequency domain of the synchronization signal; and transmitting the synchronization signal comprising the base sequence and the modified sequence to a terminal. Therefore, performance of the communication system can be improved.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: October 5, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kap Seok Chang, Young Jo Ko, Yong Sun Kim, Sang Ho Lee
  • Publication number: 20210303176
    Abstract: A memory system includes: a plurality of memory devices; a plurality of cores suitable for controlling the plurality of memory devices, respectively; and a controller including: a host interface layer for providing any one of the cores with a request of a host based on mapping between logical addresses and the cores, a remap manager for changing the mapping between the logical addresses and the cores in response to a trigger, a data swapper for swapping data between the plurality of memory devices based on the changed mapping, and a state manager for determining a state of the memory system depending on whether the data swapper is swapping the data or has completed swapping the data, and providing the remap manager with the trigger based on the state of the memory system and a difference in a degree of wear between the plurality of memory devices.
    Type: Application
    Filed: September 29, 2020
    Publication date: September 30, 2021
    Inventors: Hee Chan SHIN, Young Ho AHN, Yong Seok OH, Do Hyeong LEE, Jae Gwang LEE
  • Patent number: 11133477
    Abstract: The present application relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: September 28, 2021
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Yun-Ji Lee, Jun-Tae Mo, Yong-Geun Jung, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi, Joo-Dong Lee
  • Publication number: 20210297609
    Abstract: A camera for a vehicle includes: an imaging unit configured to image an exterior of the vehicle; and a controller configured to enlarge a region of interest of the imaging unit in response to a driving speed of the vehicle being higher than a reference speed, and reduce the region of interest of the imaging unit in response to the driving speed being lower than the reference speed.
    Type: Application
    Filed: October 21, 2020
    Publication date: September 23, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Hoon KIM, Joon Seok CHAE, Yun Tae LEE, Tae Kon KOO, Jae Chan LEE, Yong Woon PARK
  • Publication number: 20210294739
    Abstract: A memory system includes a first memory device including a plurality of first physical blocks; a second memory device including a plurality of second physical blocks; a first core suitable for managing a plurality of first super blocks that store data associated with a first logical address, the plurality of first super blocks being mapped to the plurality of first physical blocks; a second core suitable for managing a plurality of second super blocks that store data associated with a second logical address, the plurality of second super blocks being mapped to the plurality of second physical blocks; a global wear-leveling manager suitable for changing mapping between the first physical blocks, which are mapped to one among the first super blocks, and the second physical blocks, which are mapped to one among the second super blocks based on degrees of wear of the first and second super blocks.
    Type: Application
    Filed: September 11, 2020
    Publication date: September 23, 2021
    Inventors: Yong Seok OH, Youngho AHN, Joon Ho LEE, Chang Eun CHOI
  • Publication number: 20210287620
    Abstract: An embodiment is able to improve the pure-color brightness ratio by compensating for image data of a current pixel on the basis of a result of comparing image data of a current pixel with image data of a previous pixel.
    Type: Application
    Filed: March 5, 2021
    Publication date: September 16, 2021
    Inventors: Yong Hee KIM, Jung Eun BAEK, Jin Woo PARK, Ji Won LEE, Do Seok KIM, Young Gi KIM
  • Publication number: 20210287525
    Abstract: The present invention provides a method for learning latest data considering external influences in an early warning system, and the early warning system for same. The method for learning latest data considering external influences comprises the steps of: an early warning processing device categorizing device monitored variables according to external influences; and the early warning processing device differently applying a pattern learning method for each of the categorized monitored variables.
    Type: Application
    Filed: August 29, 2017
    Publication date: September 16, 2021
    Applicant: Korea Hydro & Nuclear Co., Ltd
    Inventors: Dae Woong KIM, Nam Woo CHOI, Bum Nyun KIM, Hyoung Kyun KIM, Ji In KIM, Ju Hyung KANG, Yong Hoon PARK, Gun Woong SHIN, Yang Seok KIM, Young Sheop PARK, Chi Yong PARK, Byoung Oh LEE, Jong Seog KIM
  • Patent number: 11121134
    Abstract: A semiconductor device includes a device isolation layer defining first and second active regions, a buried contact connected to the second active region, and first and second bit line structures disposed on the first and second active regions. Each of the first and second bit line structures comprises a bit line contact part and a bit line pass part. The bit line contact part is electrically connected to the first active region. The bit line pass part is disposed on the device isolation layer. A height of a lowest part of the buried contact is smaller than a height of a lowest part of the bit line pass part. The height of the lowest part of the buried contact is greater than a height of a lowest part of the bit line contact part. A lower end of the bit line pass part is buried in the second active region.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: September 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Ho Lee, Eun A Kim, Ki Seok Lee, Jay-Bok Choi, Keun Nam Kim, Yong Seok Ahn, Jin-Hwan Chun, Sang Yeon Han, Sung Hee Han, Seung Uk Han, Yoo Sang Hwang
  • Publication number: 20210278665
    Abstract: Disclosed is an electronic device. The electronic device includes: a display; a communicator comprising a circuitry, for obtaining, from an external device, an image captured by the external device and information about at least one among an acceleration and angular velocity of the external device, the acceleration and angular velocity being measured while capturing an image; and a processor for identifying a degree of movement of the external device per a preset unit time period based on the obtained information, and controlling the display to display the image with an adjusted field of view (FOV) based on the degree of movement.
    Type: Application
    Filed: November 1, 2017
    Publication date: September 9, 2021
    Inventors: Hyun-seok JEON, Min-soo KOO, Yong-woo LEE
  • Patent number: 11114634
    Abstract: A photodiode according to example embodiments includes an anode, a cathode, and an intrinsic layer between the anode and the cathode. The intrinsic layer includes a P-type semiconductor and an N-type semiconductor, and composition ratios of the P-type semiconductor and the N-type semiconductor vary within the intrinsic layer depending on a distance of the intrinsic layer from one of the anode and the cathode.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: September 7, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Bae Park, Kyu Sik Kim, Yong Wan Jin, Kwang Hee Lee, Dong-Seok Leem, Seon-Jeong Lim
  • Patent number: 11107860
    Abstract: An organic image sensor may be configured to obtain a color signal associated with a particular wavelength spectrum of light absorbed by the organic image sensor may omit a color filter. The organic image sensor may include an organic photoelectric conversion layer including a first material and a second material. The first material may absorb a first wavelength spectrum of light, and the second material may absorb a second wavelength spectrum of light. The organic photoelectric conversion layer may include stacked upper and lower layers, and the respective material compositions of the lower and upper layers may be first and second mixtures of the first and second materials. A ratio of the first material to the second material in the first mixture may be greater than 1/1, and a ratio of the first material to the second material in the second mixture may be less than 1/1.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: August 31, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gae Hwang Lee, Kwang Hee Lee, Sung Young Yun, Dong-Seok Leem, Yong Wan Jin
  • Publication number: 20210265703
    Abstract: The present invention provides an electrode assembly in which a negative electrode coated with a negative electrode active material on a surface of a negative electrode collector, a separator, and a positive electrode coated with a positive electrode active material on a surface of a positive electrode collector are repeatedly laminated, the electrode assembly comprising: monocells in which the positive electrode, the separator, the negative electrode, and the separator are laminated, wherein at least two or more monocells are laminated, wherein, in any one of the monocells, an expansion part extending lengthily to one side is formed on the separators, and the expansion part of the separator surrounds the monocells laminated to be disposed at the outermost layers to fix the laminated monocells.
    Type: Application
    Filed: July 22, 2019
    Publication date: August 26, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Yong Jun Kim, Hee Seok Jeong, Ki Won Sung, Eun Ju Lee
  • Publication number: 20210264521
    Abstract: Provided is an asset allocation service providing method of a service providing device, the method including the steps of: acquiring user analysis information from user input information inputted to a user terminal; determining asset setting information corresponding to the user analysis information; applying the asset setting information to an asset allocation engine based on model information pre-stored to create initial portfolio information; providing the initial portfolio information to the user terminal and acquiring user customized information corresponding to the initial portfolio information from the user terminal; and providing real-time simulation information using a user customized asset allocation model determined based on the user customized information to the user terminal.
    Type: Application
    Filed: June 27, 2019
    Publication date: August 26, 2021
    Inventors: Sang Geun LEE, Yong Seok CHOI
  • Publication number: 20210234191
    Abstract: Embodiments of the present invention provide a lithium secondary battery including anode active material layers which have a multi-layered structure and include carbon-based active materials having different contents from each other, thereby improving mechanical stability and battery performance.
    Type: Application
    Filed: January 28, 2021
    Publication date: July 29, 2021
    Inventors: Yong Seok Lee, Jung Hwan Kim, Sang Won Bae, Ji Hee Bae, Myung Ro Lee, Jae Yun Min
  • Patent number: 11048110
    Abstract: A curved liquid crystal display device includes: a curved liquid crystal panel including a first flat section and a second flat section in a longitudinal direction and a curved section between the first and second flat sections; a curved backlight unit which is disposed under the curved liquid crystal panel and includes a glass light guide plate having first and second flat sections and a curved section; a curved guide panel which surrounds edges of the curved liquid crystal panel and the curved backlight unit and includes first and second flat sections and a curved section; and a curved glass cover bottom which is disposed at a back surface of the curved backlight unit and includes first and second flat sections and a curved section, wherein the curved guide panel and the curved glass cover bottom are outermost structures of the curved liquid crystal display device.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 29, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Yong-Seok Lee, Min-Jin Lee, Ju-Sang Rhim