Patents by Inventor Byungchul An

Byungchul An 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: 11537154
    Abstract: A mobile device includes; a PCB including a first side and a second side, a PMIC generating power supply voltages and mounted on the second side of the PCB, a package substrate mounted on the first side of PCB using first interconnects, an IC mounted on the first side of the package substrate, LDO regulators mounted on the second side of the package substrate and disposed between the first interconnects, and high density capacitors disposed between each of the LDO regulators and the second side of the package substrate, wherein the PCB includes first electrical paths connecting the PMIC to the LDO regulators, and the package substrate includes second electrical paths connecting the LDO regulators to the IC.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: December 27, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoungmin Lee, Changsoo Kim, Byungchul Jeon, Junghun Heo, Junho Huh
  • Publication number: 20220406852
    Abstract: An electronic apparatus and a method of manufacturing the same are provided. The electronic apparatus includes: a substrate; a light source on the substrate; a color conversion layer on the light source; a UV-absorbing layer on the color conversion layer; and a color filter on the UV-absorbing layer.
    Type: Application
    Filed: May 12, 2022
    Publication date: December 22, 2022
    Inventors: Byungchul Kim, Jangwi Ryu, Jaemin Seong, Gakseok Lee, Inseok Song, Halim Ji
  • Publication number: 20220408141
    Abstract: In a general aspect, a system for media playback can include a first media playback device configured to receive a media stream from a media casting device over a data network, the first media playback device being a member of the media playback group and a second media playback device configured to receive the media stream, the second media playback device being a member of the media playback group. The first media playback device and the second media playback device can be collectively configured to designate one of the first media playback device and the second media playback device as a leader playback device of the media playback group. The playback device not designated as the leader playback device can be designated as a follower playback device of the media playback group. The first media playback device and the second media playback device can be further collectively configured to determine a clock offset between the leader playback device and the follower playback device.
    Type: Application
    Filed: August 19, 2022
    Publication date: December 22, 2022
    Inventors: Kenneth J. MacKay, Byungchul Kim, Tavis A. Maclellan, Richard F. Lyon, Chet N. Gnegy, Pascal T. Getreuer, Chien-Jung Kung, Tomer Shekel, Ryan M. Rifkin
  • Publication number: 20220382624
    Abstract: The present disclosure refers to apparatuses and methods for initializing electronic devices. An electronic device according to various embodiments includes a memory, and a processor operatively connected to the memory. The processor is configured to record, in the memory, software binaries received from an external device during a download mode. The processor is further configured to, when the download mode has ended, perform booting in a normal mode using a bootloader based on a determination indicating that a predetermined software binary is present among the software binaries recorded in the memory, and perform booting in a recovery mode using the bootloader based on the determination indicating that the predetermined software binary is absent from among the software binaries recorded in the memory.
    Type: Application
    Filed: August 10, 2022
    Publication date: December 1, 2022
    Applicant: Samsung Electronics Co., LTD.
    Inventors: Byungchul KIM, Kiseok KIM, Mingyu KIM, Jaemin OH, Sanghyun LEE
  • Publication number: 20220380643
    Abstract: An adhesive for an EUV mask includes an epoxy resin composition in an amount of 50 wt % to 80 wt % based on a total weight of the adhesive, the epoxy resin composition including an epoxy resin, a hardener, a toughening agent, a filler, and a curing accelerator, and an inorganic filler in an amount of 20 wt % to 50 wt % based on the total weight of the adhesive, the inorganic filler including one or more of aluminum hydroxide or calcium carbonate.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 1, 2022
    Applicant: FINE SEMITECH CORP.
    Inventors: Byungchul YOO, Byunghoon LEE, Myungjun KIM, Jikang KIM, Jeonghwan MIN, Kyoungchae SEO, Changyoung JEONG
  • Publication number: 20220384675
    Abstract: A method for repairing a display module and a display module repaired by the method are provided. The method for repairing a display module includes: detecting light-emitting diode (LED) missing positions on a target substrate; loading the target substrate onto a first stage; loading a transfer substrate onto a second stage; arranging the target substrate and the transfer substrate by operating the first stage and the second stage; and transferring a laser consecutively to the LED missing positions by moving the target substrate and the transfer substrate at a constant speed by operating the first stage and the second stage in a row direction or a column direction.
    Type: Application
    Filed: August 10, 2022
    Publication date: December 1, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byungchul KIM, Doyoung KWAG, Sangmoo PARK, Wonsik CHOI
  • Publication number: 20220375907
    Abstract: A method for manufacturing a display module includes the steps of: transferring LEDs of a substrate to a first relay substrate; transferring the LEDs of the first relay substrate to a second relay substrate in a primary stretch array such that a gap between adjacent LEDs on the second relay substrate is greater than a gap between adjacent LEDs on the first relay substrate in one direction from among a row direction and a column direction; and transferring the LEDs of the second relay substrate to a target substrate in a secondary stretch array such that a gap between adjacent LEDs on the target substrate is greater than a gap between adjacent LEDs on the second relay substrate in a remaining direction from among the row direction and the column direction.
    Type: Application
    Filed: August 3, 2022
    Publication date: November 24, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wonsik CHOI, Doyoung KWAG, Byungchul KIM, Sangmoo PARK
  • Publication number: 20220330463
    Abstract: An electronic device including a substrate on which an electronic component is mounted according to various embodiments may include: a first electromagnetic interference (EMI) shield configured to shield the electronic component included in a first region of the substrate; and a second EMI shield supported by at least a part of the first EMI shield and configured to shield the electronic component included in a second region of the substrate.
    Type: Application
    Filed: August 10, 2021
    Publication date: October 13, 2022
    Inventors: Hojong KIM, Changhwan JIN, Jonghun CHOI, Byungchul LEE, Jaeyoung HUH, Hyunchul HONG, Jaeuk RYU
  • Patent number: 11467652
    Abstract: A system on chip (SoC) includes a first core and a second core, first and second power gating switches, and a first power switch. The first power gating switch is arranged between the first core and a first power rail that receives a first voltage, and is selectively turned on in response to a first power gating signal. The second power gating switch is arranged between the second core and a second power rail that receives a second voltage, and is selectively turned on in response to a second power gating signal. The first power switch is arranged between the first power rail and the second power rail, and is selectively turned on in response to a first power control signal to connect the first power gating switch or the second power gating switch both the first power rail and the second power rail.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: October 11, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byungchul Jeon, Jae Min Kim, Hyunseok Kim, Junho Huh
  • Patent number: 11466378
    Abstract: Electroplating apparatus and electroplating method using the same. Provided is an electroplating apparatus. The electroplating apparatus includes a plating bath and a stage configured to support a substrate loaded into the plating bath to be disposed in a horizontal direction. The electroplating apparatus further includes a plurality of cathodes disposed on both sides of the substrate and an anode configured to be movable above the substrate. The electroplating apparatus also includes a plurality of spray nozzles disposed on at least one side of the anode and configured to spray a plating solution. The electroplating apparatus further includes a shield which is disposed on both sides of the anode and whose one end is more adjacent to the substrate than the anode.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: October 11, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Gotae Kim, ByeongSun Yoo, ByungChul Ahn, WooChan Kim, JuYoung Jeong, SangCheol Moon, Wook Kim, Changjun Choi
  • Patent number: 11467148
    Abstract: A method for identifying radio signal transmission characteristics in a wireless communication system and an apparatus therefor are provided. The method may include identifying a signal transmission site, identifying a signal reception site, finding an area where a tree is present between the signal transmission site and the signal reception site, checking characteristics of the crown of the tree and characteristics of the trunk of the tree, and examining transmission characteristics of a radio signal sent from the signal transmission site to the signal reception site on the basis of the characteristics of the crown and the trunk. The method and apparatus relate to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for internet of things (IoT), and may be applied to intelligent services based on the 5G communication and the IoT-related technologies.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: October 11, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jungmin Park, Byungchul Kim, Youngju Lee, Dongkyu Choi, Junghwan Choi, Seungku Han
  • Patent number: 11463762
    Abstract: In a general aspect, a system for media playback can include a first media playback device configured to receive a media stream from a media casting device over a data network, the first media playback device being a member of the media playback group and a second media playback device configured to receive the media stream, the second media playback device being a member of the media playback group. The first media playback device and the second media playback device can be collectively configured to designate one of the first media playback device and the second media playback device as a leader playback device of the media playback group. The playback device not designated as the leader playback device can be designated as a follower playback device of the media playback group. The first media playback device and the second media playback device can be further collectively configured to determine a clock offset between the leader playback device and the follower playback device.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: October 4, 2022
    Assignee: Google LLC
    Inventors: Kenneth J. MacKay, Byungchul Kim, Tavis A. Maclellan, Richard F. Lyon, Chet N. Gnegy, Pascal T. Getreuer, Chien-Jung Kung, Tomer Shekel, Ryan M. Rifkin
  • Patent number: 11450652
    Abstract: A micro LED transferring method is provided. The transferring method includes selectively applying a color conversion material to a mono-color substrate, the mono-color substrate including first micro LEDs in a first color; obtaining a multi-color substrate based on a result of the applying, the multi-color substrate including the first micro LEDs in the first color and second micro LEDs in a second color different from the first color; and irradiating a laser beam toward the multi-color substrate to transfer the first micro LEDs and the second micro LEDs to a target substrate.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: September 20, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doyoung Kwag, Byungchul Kim, Sangmoo Park, Minsub Oh
  • Publication number: 20220283962
    Abstract: A storage controller includes a command manager and a direct memory access (DMA) engine. The command manager receives a first submission queue doorbell from an external device, fetches a first command including a first latency from the external device in response to the first submission queue doorbell, and determines a first timing to write a first completion into the external device based on the first latency, the first completion indicating that the first command is completely processed. The DMA engine receives a request signal requesting processing of the first command from the command manager, transfer data, which the first command requests, based on a DMA transfer in response to the request signal, and outputs a complete signal, which indicates that the first command is completely processed, to the command manager.
    Type: Application
    Filed: May 24, 2022
    Publication date: September 8, 2022
    Applicant: SUMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangmuk HWANG, Jaegeun Park, Hojun Shim, Byungchul Yoo
  • Patent number: 11437541
    Abstract: A method of manufacturing a micro light emitting diode (LED) display and a transfer apparatus are provided. The method of manufacturing a micro LED display includes: identifying a repairing micro LED, from among a plurality of second micro LEDs, on a second substrate based on a first position of a defective micro LED, from among a plurality of first micro LEDs, on a first substrate; removing the defective micro LED from the first substrate; matching the first position on the first substrate from which the defective micro LED has been removed to a second position of the repairing micro LED on the second substrate; and transferring the repairing micro LED from the second position on the second substrate to the first position on the first substrate from which the defective micro LED has been removed, by using a laser transfer method.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: September 6, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangmoo Park, Doyoung Kwag, Byungchul Kim, Minsub Oh
  • Patent number: 11393880
    Abstract: A display device including a base layer including a thin film transistor, a pixel definition layer including an opening, first to third organic light emitting elements each including a first electrode, a second electrode, and a light emitting layer therebetween, an encapsulation member including a first inorganic layer covering the organic light emitting elements, a second inorganic layer disposed thereon, a first color conversion pattern disposed between the inorganic layers and overlapping the first organic light emitting element, and a second color conversion pattern disposed between the inorganic layers and overlapping the second organic light emitting element, and first and second color filter patterns having different colors from each other and overlapping the first and second color conversion patterns, respectively, in which colors of light emitted from the first and second color conversion patterns are substantially the same as colors of the first and second color filter patterns, respectively.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: July 19, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Soon Jang, Keunchan Oh, Sun-kyu Joo, Byungchul Kim, Inok Kim, Inseok Song, Gakseok Lee
  • Patent number: 11387384
    Abstract: A light-emitting diode (LED) transferring method is provided. The LED transferring method includes disposing a transfer substrate, on which a plurality of LEDs of different colors are sequentially arranged in at least one row or at least one column, between a target substrate and a laser oscillator, and simultaneously transferring the plurality of LEDs from the transfer substrate to predetermined points of the target substrate by radiating a laser beam toward the target substrate from the laser oscillator.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: July 12, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangmoo Park, Minsub Oh, Doyoung Kwag, Byungchul Kim, Eunhye Kim, Dongyeob Lee, Yoonsuk Lee
  • Publication number: 20220199679
    Abstract: A semiconductor light emitting device is provided. The semiconductor light emitting device includes a plurality of light emitting structures, each of which includes a first surface and a second surface, a plurality of embossed portions provided on the first surface; a partition wall structure provided on the first surface of the plurality of light emitting structures and including a plurality of partition walls which define a plurality of pixel spaces; and a fluorescent layer provided in the plurality of pixel spaces. A bottom surface of the partition wall structure contacts the plurality of embossed portions.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 23, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kiwon PARK, Geunwoo KO, Inho KIM, Sungwook LEE, Jonghyun LEE, Byungchul CHOI
  • Patent number: 11366770
    Abstract: A method of operating a storage controller that communicates with a host including a submission queue and a completion queue is provided. The operating method includes receiving a submission queue doorbell from the host, fetching a first command including a latency from the submission queue of the host in response to the received submission queue doorbell, processing the fetched first command, and writing a first completion, which indicates that the first command is completely processed, into the completion queue of the host at a timing based on the latency.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: June 21, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangmuk Hwang, Jaegeun Park, Hojun Shim, Byungchul Yoo
  • Publication number: 20220185101
    Abstract: A purge system of a fuel vapor includes a sensor sensing an operation of a refueling button, a fuel tank isolation valve provided on a vapor line connecting a fuel tank and a canister, an active purge pump provided on a purge line connecting the canister and an intake system, and a controller opening the fuel tank isolation valve and operating the active purge pump if the operation of the refueling button is recognized by the sensor to trap the fuel vapor generated from the fuel tank into the purge line.
    Type: Application
    Filed: May 11, 2021
    Publication date: June 16, 2022
    Inventor: Byungchul Ko