Patents by Inventor Joon Choi

Joon Choi 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: 11843948
    Abstract: A method of a wearable device displaying icons is provided. The method includes displaying a plurality of circular icons comprising a first circular icon located in a center area of a touch display in a first size and a second circular icon located outside of the center area of the touch display in a second size smaller than the first size, and based on a direction of a touch input received on the touch display, moving the plurality of circular icons such that the first circular icon is moved to a first position located outside of the center area of the touch display and the second circular icon is moved from a second position located outside the center area of the touch display to the center area of the touch display and enlarged in size from the second size to the first size.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: December 12, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-kyu Seo, Young-joon Choi, Ji-yeon Kwak, Hyun-jin Kim, Yeo-jun Yoon
  • Publication number: 20230387069
    Abstract: The present invention relates to a laser reflow apparatus. More particularly, the present invention relates to a compression-type laser reflow apparatus with a vacuum chamber that enables mass processing by simultaneously pressuring and reflowing a plurality of electronic components by performing a laser reflow process by pressing with a light-transmitting pressing member and irradiating a laser beam inside the vacuum chamber, and that effectively prevents the generation of voids by fumes during soldering, so that the defect rate of the laser reflow process is greatly improved.
    Type: Application
    Filed: October 28, 2022
    Publication date: November 30, 2023
    Inventors: Jae Joon CHOI, Byung Roc KIM, Eun Sung CHOI, Hwan Soo YEO, Seung Hyun SEO
  • Publication number: 20230381900
    Abstract: The present invention relates to a turntable-type probe pin laser bonding apparatus wherein a pin gripper mounted on four surfaces automatically laser-bonds a probe pin to a probe card while continuously rotating pin grippers in a turntable method. More particularly, the present invention relates to a multi-axis gripper unit of a turntable type probe pin laser bonding apparatus that can continuously process the pickup, dipping, and laser bonding of probe pins while freely moving linearly or rotationally in multi-axis directions, for example, the X-axis, Y-axis, X?-axis, Y?-axis, and the gripper axis, with high precision in micrometer units by being applied to the laser bonding unit.
    Type: Application
    Filed: October 28, 2022
    Publication date: November 30, 2023
    Inventors: Jae Joon CHOI, Byung Roc KIM, Tae Kyu KIM, Dong Sik KIM, Jun Gi LEE, Sang Won LEE
  • Patent number: 11813688
    Abstract: Disclosed are a laser bonding apparatus and a laser bonding method capable of bonding an electronic component to a three-dimensional structure having a regular or irregular shape in a curved portion such as an automobile tail lamp or a headlamp. The laser bonding apparatus and method for a three-dimensional structure may prevent misalignment and poor bonding of the electronic component with respect to the three-dimensional structure.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: November 14, 2023
    Assignee: LASERSSEL CO., LTD.
    Inventors: Jae Joon Choi, Byung Rock Kim
  • Patent number: 11812267
    Abstract: A method of a wearable device displaying icons is provided. The method includes displaying a plurality of circular icons comprising a first circular icon located in a center area of a touch display in a first size and a second circular icon located outside of the center area of the touch display in a second size smaller than the first size, and based on a direction of a touch input received on the touch display, moving the plurality of circular icons such that the first circular icon is moved to a first position located outside of the center area of the touch display and the second circular icon is moved from a second position located outside the center area of the touch display to the center area of the touch display and enlarged in size from the second size to the first size.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: November 7, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-kyu Seo, Young-joon Choi, Ji-yeon Kwak, Hyun-jin Kim, Yeo-jun Yoon
  • Publication number: 20230326523
    Abstract: Operating a selector device that controls access of a signal to a memory element may comprise applying a main operating voltage pulse and a refresh voltage pulse to the selector device. The refresh voltage pulse and main operating voltage pulse have opposite polarities. A magnitude of the main operating voltage pulse is greater than or equal to a threshold voltage for turning on the selector device, and a maximum magnitude of the refresh voltage pulse is less than the threshold voltage. The refresh voltage pulse reduces a difference between the threshold voltage and a turn-off voltage of the selector device, and may be applied immediately before or immediately after the main operating voltage pulse. An electronic circuit may include the selector device and a driving circuit for apply the pulses. A nonvolatile memory may include the driving circuit and a plurality of nonvolatile memory elements each including a selector device.
    Type: Application
    Filed: March 22, 2023
    Publication date: October 12, 2023
    Inventors: Tae Jung HA, Soo Gil KIM, Jeong Hwan SONG, Byung Joon CHOI, Ha Young LEE
  • Publication number: 20230318679
    Abstract: Disclosed herein is a method for signal configuration. The method may include evenly dividing, by a signal-bit configuration block, data or information forming signal bits or a signal bitstring and transferring the same to N multiple channels; mapping, by a first spatial path configuration block, a coded bitstring, which is generated through coding and signal processing of the data or information forming the signal bits or the signal bitstring, to cells corresponding to M antennas; and configuring, by a frequency path configuration block, the transmission paths of the cells.
    Type: Application
    Filed: March 27, 2023
    Publication date: October 5, 2023
    Inventors: Jung-Sun UM, Sung-Ik PARK, Hoi-Yoon JUNG, Dong-Joon CHOI, Nam-Ho HUR
  • Publication number: 20230319565
    Abstract: A method of a wearable device displaying icons is provided. The method includes displaying a plurality of circular icons comprising a first circular icon located in a center area of a touch display in a first size and a second circular icon located outside of the center area of the touch display in a second size smaller than the first size, and based on a direction of a touch input received on the touch display, moving the plurality of icons such that the first circular icon is moved to a position located outside of the center area of the touch display and reduced in size from the first size to the second size and the second circular icon is moved to the center area of the touch display and enlarged in size from the second size to the first size.
    Type: Application
    Filed: June 2, 2023
    Publication date: October 5, 2023
    Inventors: Joon-kyu SEO, Young-joon CHOI, Ji-yeon KWAK, Hyun-jin KIM, Yeo-jun YOON
  • Patent number: 11764231
    Abstract: A display device includes: a substrate; a light blocking layer of a driving transistor and an active layer of a switching transistor on the substrate; a buffer layer on the light blocking layer, the buffer layer overlapping the light blocking layer; an active layer of the driving transistor on the buffer layer; a first gate insulating layer on the active layer of the driving transistor and the active layer of the switching transistor; and a first gate electrode on the first gate insulating layer and overlapping the active layer of the driving transistor and a second gate electrode overlapping the active layer of the switching transistor, wherein the light blocking layer and the active layer of the switching transistor are on a same layer.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: September 19, 2023
    Assignees: Samsung Display Co., Ltd., Industry-University Cooperation Foundation Hanyang University ERICA Campus
    Inventors: Joon Seok Park, Sae Roon Ter Oh, Jun Hyung Lim, Su Hyun Kim, Young Joon Choi
  • Publication number: 20230283333
    Abstract: Disclosed herein are an apparatus and method for channel bonding-based multi-antenna signal transmission in a broadcasting system. An apparatus for channel bonding-based multi-antenna signal transmission includes an input formatting unit for converting input data into a Physical Layer Pipe (PLP), a stream partitioning unit for partitioning the PLP into pieces of data to be transmitted to two or more channels, respectively, and two or more transmission units for transmitting the pieces of data resulting from partitioning to corresponding channels through multiple antennas.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hoi-Yoon JUNG, Sung-Ik PARK, Jae-Hyun SEO, Bo-Mi LIM, Dong-Joon CHOI, Nam-Ho HUR, Jeong-Chang KIM
  • Patent number: 11722355
    Abstract: Disclosed herein are an apparatus and method for transmitting and receiving a 4-layer layered-division multiplexing (LDM) signal. An apparatus for transmitting a 4-layer layered-division multiplexing signal includes a layered-division multiplexing modulation unit for generating a 3-layer layered-division multiplexing signal by performing layered-division multiplexing modulation on three layer signals and generating a 4-layer layered-division multiplexing signal by inserting a Pseudo-random Noise (PN) sequence into the 3-layer layered-division multiplexing signal, a pilot insertion unit for inserting a pilot into the 4-layer layered-division multiplexing signal, and a transmission unit for transmitting the 4-layer layered-division multiplexing signal.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: August 8, 2023
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae-Hwui Bae, Young-Su Kim, Dong-Joon Choi, Nam-Ho Hur
  • Patent number: 11711694
    Abstract: A method of a wearable device displaying icons is provided. The method includes displaying a plurality of circular icons comprising a first circular icon located in a center area of a touch display in a first size and a second circular icon located outside of the center area of the touch display in a second size smaller than the first size, and based on a direction of a touch input received on the touch display, moving the plurality of circular icons such that the first circular icon is moved to a first position located outside of the center area of the touch display and the second circular icon is moved from a second position located outside the center area of the touch display to the center area of the touch display and enlarged in size from the second size to the first size.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: July 25, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-kyu Seo, Young-joon Choi, Ji-yeon Kwak, Hyun-jin Kim, Yeo-jun Yoon
  • Patent number: 11699676
    Abstract: Provided is a multi-beam laser debonding apparatus for debonding an electronic component from a substrate, the apparatus including: a first laser module to emit a first laser beam to a predetermined range of a first substrate area including attachment positions of a debonding target electronic component and a neighboring electronic component to thereby heat a solder of the electronic components to reach a predetermined pre-heat temperature; and a second laser module to emit a second laser beam overlapping the first laser beam to a second substrate area smaller than the first substrate area, the second substrate area including the attachment position of the debonding target electronic component to thereby heat the solder of the debonding target electronic component to reach a debonding temperature at which the solder commences melting.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: July 11, 2023
    Assignee: LASERSSEL CO., LTD.
    Inventors: Jae-Joon Choi, Nam-Seong Kim, Byung-Roc Kim, Jong-Jae Yoo, Boo-Seong Park
  • Publication number: 20230199267
    Abstract: An adaptive multi-view streaming processing method and apparatus for a multi-view stream is disclosed. Specifically, disclosed herein is a method and apparatus for adaptively processing or transmitting adaptive streaming by reflecting network states and changes in transmission environments in a multi-view streaming service environment where several or more multiple videos are simultaneously transmitted at an arbitrary moment. An adaptive streaming processing method for a multi-view stream may comprise selecting and downloading an i-th segment of a main view stream with a first quality level, inferring a size of an i-th segment of downloadable neighboring view streams based on a download time and transfer rate of the i-th segment of the main view stream, and selecting a second quality level corresponding to the inferred size of the i-th segment of the neighboring view streams and downloading the i-th segment of the neighboring view streams based on the selected second quality level.
    Type: Application
    Filed: August 25, 2022
    Publication date: June 22, 2023
    Inventors: Eun Hee HYUN, Kwan Woong RYU, Je Won LEE, Joon Young JUNG, Dong Joon CHOI
  • Publication number: 20230187267
    Abstract: Provided is a semiconductor device and a method of manufacturing the same and, more particularly, to a semiconductor device and a method of manufacturing the same, seeking to reduce or prevent transmission of noise between adjacent devices and improve isolation characteristics by forming a second isolation region into an upper region (e.g., a pre-DTI region) and a lower region (e.g., a DTI region) relatively deep in the substrate.
    Type: Application
    Filed: November 15, 2022
    Publication date: June 15, 2023
    Inventors: Sang Il HWANG, Dae Il KIM, Sung Hoon LEE, Min Woo KIM, Young Joon CHOI
  • Patent number: 11675393
    Abstract: A display device according to an embodiment includes a display panel and a protection layer that is disposed on the display panel, wherein the protection layer includes: a first protection layer; a metal layer that overlaps the first protection layer and includes a hole; and an adhesive layer disposed between the first protection layer and the metal layer. The adhesive layer includes a first area disposed between the first protection layer and the metal layer, and a second area and a third area that are disposed in the hole, wherein a peeling strength of the second area and a peeling strength of the third area are different from each other.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: June 13, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ye Jin Kim, Seul-Gi Kim, Cheol Geun An, Eui Yun Jang, Won Joon Choi
  • Patent number: 11675854
    Abstract: An example operation may include one or more of receiving from a user node, by a blockchain processor node, a document access request containing a document ID, acquiring, by the blockchain processor node, from a blockchain ledger an encrypted URL of the document and a source hash of the document based on the document ID, verifying, by the blockchain processor node, a document received from a document owner's node storage based on a decrypted URL of the document and, in response to the verification, transmitting the document received from the document owner's node storage to the user node.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: June 13, 2023
    Assignee: International Business Machines Corporation
    Inventors: Yedendra Shrinivasan, Krishna Chaitanya Ratakonda, Rak-Joon Choi
  • Patent number: 11668666
    Abstract: The present invention relates to a method for early detection of carbonization during the drying of an organic material. The method of the present invention measures temperature variation per unit time of exhaust gas containing water (H2O), carbon monoxide (CO), or carbon dioxide (CO2), which are to be generated by the pyrolysis of an organic material, and the concentration of carbon monoxide/carbon dioxide of the exhaust gas, so as to determine the occurrence of carbonization therethrough, thereby enabling early detection of carbonization within a dryer.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: June 6, 2023
    Inventors: Yong Joon Choi, Won Chan Park, Kyung Hyun Song
  • Patent number: 11668347
    Abstract: A rotation induction device for a vehicle includes: an upper case formed of a synthetic resin material, and having a piston rod passing therethrough; a lower case formed of a synthetic resin material and disposed under the upper case, wherein the piston rod passes through the lower case; a center plate formed of a synthetic resin material, disposed between the upper case and the lower case such that the piston rod passes through the center plate, and configured to induce the rotation of either one or both of the upper case and the lower case; and an inflow prevention part formed on either one or both of the upper case and the lower case, and configured to block an inflow of foreign matter through the piston rod.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: June 6, 2023
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Jun Mo Kang, Byung Joon Choi
  • Patent number: 11649854
    Abstract: A rotation induction device for a vehicle includes: an upper case having a piston rod disposed therethrough; a lower case disposed adjacent to the upper case and having the piston rod disposed therethrough; a center plate disposed between the upper case and the lower case such that the piston rod passes through the center plate, to induce rotation of one or both of the upper case and the lower case; and a friction restraint part formed on one or both of the upper case and the lower case, to restrain friction with the center plate.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: May 16, 2023
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Jun Mo Kang, Byung Joon Choi