Patents by Inventor Jin-Woo Choi

Jin-Woo 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: 11896353
    Abstract: An apparatus for estimating bio-information is provided. The apparatus for estimating bio-information according to an embodiment includes: an ultrasonic sensor configured to acquire a bio-signal from an object; and a processor configured to detect peaks from the bio-signal, and to determine false detection of a peak, among the detected peaks, by using at least one of a time interval between a current peak and an immediately preceding peak, amplitudes of the current peak and the immediately preceding peak, a shape of a waveform on a left region and a right region of the peak, and an occurrence position of the peak.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: February 13, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun Kwon, Jae Min Kang, Youn Ho Kim, Sang Kon Bae, Jin Woo Choi, Chang Mok Choi
  • Publication number: 20240047473
    Abstract: Provided is a stretchable display device. The stretchable display device according to one or more embodiments of the present disclosure includes a substrate including a first island pattern, a second island pattern, and a bridge pattern connecting the first island pattern and the second island pattern, a first pixel electrode above the first island pattern, and having an area that is greater than an area of the first island pattern, a second pixel electrode above the second island pattern, a display layer above the first pixel electrode and the second pixel electrode, and configured to display an image, and a common electrode above the display layer.
    Type: Application
    Filed: July 20, 2023
    Publication date: February 8, 2024
    Inventors: Jin Woo CHOI, Min Woo KIM, Sung Chan JO, Eun A YANG, Jong Ho HONG
  • Patent number: 11892136
    Abstract: A vehicle lamp forms a predetermined beam pattern using a plurality of lamp modules arranged in at least one direction. Each of the plurality of lamp modules includes a light source unit that generates light; an optical unit that is disposed in front of the light source unit and transmits the light from the light source unit so that at least a portion of the light incident to an incident surface of the optical unit is output through an exit surface thereof to form the predetermined beam pattern; and an optical path adjustment unit that guides the light generated from the light source unit to the optical unit by adjusting paths of the light. The exit surface of the optical unit of one of the plurality of lamp modules is disposed more forward than the exit surface of the optical unit of another one of the plurality of lamp modules.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: February 6, 2024
    Assignee: SL Corporation
    Inventors: Jun Woo Woo, Jin Ho Jo, Dong Hyun Go, Nak Jung Choi
  • Publication number: 20240038988
    Abstract: The present invention relates to a positive electrode active material having improved electrical characteristics by adjusting an aspect ratio gradient of primary particles included in a secondary particle. a positive electrode including the positive electrode active material, and a lithium secondary battery using the positive electrode.
    Type: Application
    Filed: October 16, 2023
    Publication date: February 1, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Moon Ho CHOI, Seung Woo CHOI, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Gwang Seok CHOE, Joong Ho BAE, Du Yeol KIM
  • Patent number: 11887786
    Abstract: A ceramic electronic component includes a body including a dielectric layer and an internal electrode; and an external electrode disposed on the body and connected to the internal electrode. The dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains. The grain boundary includes a secondary phase including Sn, a rare-earth element, and a first subcomponent. The rare-earth element includes at least one of Y, Dy, Ho, Er, Gd, Ce, Nd, Sm, Tb, Tm, La, Gd and Yb. The first subcomponent includes at least one of Si, Mg, and Al.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: January 30, 2024
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Woo Kim, Chang Hak Choi, Seok Hyun Yoon, Ki Yong Lee, Jong Myeong Jeon
  • Patent number: 11888226
    Abstract: Various embodiments relate to an electromagnetic wave absorber having a honeycomb sandwich structure, which is capable of absorbing broadband electromagnetic waves using electromagnetic properties of a metal-coated dielectric fiber, may comprise: at least two honeycomb core layers in each of which hexagonal units formed of a material comprising the metal-coated dielectric fiber are continuously arranged; and skin layers which are disposed on top surfaces and bottom surfaces of the at least two honeycomb core layers and each include a bottom layer, a top layer, and an intermediate layer. Various other embodiments are possible.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: January 30, 2024
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY
    Inventors: Young Woo Nam, Byeong Su Kwak, Jin Ho Choi, Jin Hwe Kweon
  • Patent number: 11888086
    Abstract: A manufacturing apparatus of a display device, includes: a first unit to transfer a plurality of light emitting elements on a growth substrate to a first film; a second unit to expand the first film; a third unit to retransfer the plurality of light emitting elements to a second film; a fourth unit to determine positions of the plurality of light emitting elements on the second film; a fifth unit to bin the light emitting elements on the second film, and determine an effective light source from among the light emitting elements; a sixth unit to form a plurality of pixels on a substrate, each pixel including a first bonding electrode; a seventh unit to remove the second film after transferring one light emitting element to the first bonding electrode of one pixel; and an eighth unit to form a second electrode on the one light emitting element.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: January 30, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Dae Ho Song, So Yeon Yoon, Joo Woan Cho
  • Publication number: 20240030054
    Abstract: A wafer-type sensor for wafer alignment includes a dummy wafer; a sensor module disposed in the dummy wafer, and a processor configured to control the sensor module to measure a distance between a side surface of the dummy wafer and a ring formed around a periphery of an electrostatic chuck based on the dummy wafer being mounted on the electrostatic chuck by a transfer robot.
    Type: Application
    Filed: December 14, 2022
    Publication date: January 25, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung Hoon KO, Seung Woo Noh, Sang Yun Park, Jin Woo Choi, Youn Ho Kim
  • Patent number: 11881170
    Abstract: A light emitting display device is disclosed that includes an organic light emitting diode having an anode electrode connected to a first power line and a cathode electrode, a capacitor configured to store a data voltage and having a first electrode and a second electrode, and a driving transistor having a first electrode connected to the cathode electrode of the organic light emitting diode, a gate electrode connected to the first electrode of the capacitor, and a second electrode connected to the second electrode of the capacitor and a second power line. The driving transistor applies an initialization voltage to a node connected to the cathode electrode of the organic light emitting diode and the first electrode of the driving transistor.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: January 23, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sin Park, Sung Wook Choi, Jin Woo Lee
  • Patent number: 11881474
    Abstract: A display device includes pixels each of which includes a first pixel electrode; a first connection electrode disposed on the first pixel electrode; a second connection electrode spaced apart from the first pixel electrode; a second pixel electrode disposed on the second connection electrode; first light emitting elements disposed between the first pixel electrode and the first connection electrode; and second light emitting elements disposed between the second connection electrode and the second pixel electrode. The first connection electrode is electrically connected to the second connection electrode.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: January 23, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Woo Choi, Min Woo Kim, Dae Ho Song, Byung Choon Yang, Hyung Il Jeon
  • Patent number: 11877858
    Abstract: An apparatus for estimating bio-information according to an embodiment of the present disclosure includes a first sensor configured to obtain a fingerprint image of a finger of the user; a second sensor configured to measure a force or a pressure applied by the finger; and a processor configured to obtain, based on the fingerprint image, a first feature value related to pulse waves and a second feature value related to skin elasticity; obtain a third feature value based on the force or the pressure; and estimate the bio-information of the user based on the first feature value, the second feature value, and the third feature value.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: January 23, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Min Kang, Seung Woo Noh, Sang Yun Park, Jin Woo Choi
  • Patent number: 11882292
    Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: January 23, 2024
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Hae Chul Choi, Se Yoon Jeong, Sung-Chang Lim, Jin Soo Choi, Jin Woo Hong, Dong Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Gwang Hoon Park, Seung Ryong Kook, Sea-Nae Park, Kwang-Su Jeong
  • Publication number: 20240022715
    Abstract: Provided are an image encoding method and device. When carrying out image encoding for a block within a slice, at least one block in a restored block of the slice is set as a reference block. When this is done, the encoding parameters of the reference block are distinguished, and the block to be encoded is encoded adaptively based on the encoding parameters.
    Type: Application
    Filed: September 27, 2023
    Publication date: January 18, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung Chang LIM, Jong Ho KIM, Hae Chul CHOI, Hui Yong KIM, Ha Hyun LEE, Jin Ho LEE, Se Yoon JEONG, Suk Hee CHO, Jin Soo CHOI, Jin Woo HONG, Jin Woong KIM
  • Publication number: 20240017629
    Abstract: An embodiment is battery charging system including an external voltage conversion device including an input unit configured to receive a system AC voltage, an output unit configured to output a charging DC voltage, and a power factor correction circuit including a first switching circuit connected to the input unit, a second switching circuit connected to the output unit, and a transformer connected between the first switching circuit and the second switching circuit, and an electrified vehicle including a charging port configured to receive the charging DC voltage, a battery, a motor having a plurality of windings, an inverter connected to each of one-side ends of the plurality of windings, and a relay connected between the charging port and a neutral terminal for the plurality of windings, the electrified vehicle controlling the relay upon recharging of the battery.
    Type: Application
    Filed: November 11, 2022
    Publication date: January 18, 2024
    Inventors: Si Hun Yang, Jin Young Yang, In Yong Yeo, Jong Eun Byun, Sang Jin Kim, Dae Woo Lee, Min Seong Choi
  • Publication number: 20240022714
    Abstract: Provided are an image encoding method and device. When carrying out image encoding for a block within a slice, at least one block in a restored block of the slice is set as a reference block. When this is done, the encoding parameters of the reference block are distinguished, and the block to be encoded is encoded adaptively based on the encoding parameters.
    Type: Application
    Filed: September 27, 2023
    Publication date: January 18, 2024
    Inventors: Sung Chang LIM, Jong Ho KIM, Hae Chul CHOI, Hui Yong KIM, Ha Hyun LEE, Jin Ho LEE, Se Yoon JEONG, Suk Hee CHO, Jin Soo CHOI, Jin Woo HONG, Jin Woong KIM
  • Patent number: 11873372
    Abstract: Embodiments relate to a polyamide-imide film that maintains its mechanical properties at least at a certain level under the conditions of high temperatures and low temperatures and is excellent in transparency and folding characteristics, a process for preparing the same, and a cover window comprising the same. The polyamide-imide film comprises a polyamide-imide polymer and has an MOR value defined in Equation 1a of 75% or more.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: January 16, 2024
    Assignee: SK MICROWORKS CO., LTD.
    Inventors: Han Jun Kim, Sunhwan Kim, Dae Seong Oh, Jin Woo Lee, Sang Hun Choi, Jung Hee Ki, Dong Jin Lim
  • Patent number: 11872781
    Abstract: A method for repairing a damaged area of a stealth composite structure having a stealth function using a scarf patch includes the steps of diagnosing the damaged area; deriving a repair area including the diagnosed damaged area; processing the scarf patch according to the derived repair area; machining a patch hole according to the derived repair area to remove the damaged area; and coupling the scarf patch to the patch hole so that an inner wall of the patch hole and a side surface of the scarf patch face.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: January 16, 2024
    Assignees: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Young Woo Nam, Gi Won Jeong, Jin Hwe Kweon, Jin Ho Choi, Joon hyung Shin, Bo Seong Kwon, Jong Gwan Yook, Yeong Hoon Noh
  • Patent number: 11876413
    Abstract: The present disclosure in some embodiment provides a hybrid induction motor including dual stators. According to at least one embodiment, the present disclosure provides a hybrid induction motor including a hollow rotor including a single conductor bar which is annularly disposed and spaced apart from a rotation axis by a predetermined distance, an outer stator having an outer stator winding disposed in parallel with an outer circumferential surface of the hollow rotor, and an inner stator having an inner stator winding disposed in parallel with an inner circumferential surface of the hollow rotor.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: January 16, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Myung Seop Lim, Jae Hyun Kim, Sung Woo Hwang, Jin Cheol Park, Jin Ho Choi
  • Publication number: 20240014351
    Abstract: A display device may include: a substrate; and a pixel on the substrate, and including an emission area and a non-emission area. The pixel may include: a light emitting element in the emission area, the light emitting element including a first end and a second end; a first pixel electrode electrically connected to the first end of the light emitting element; a second pixel electrode electrically connected to the second end of the light emitting element; an organic transmission layer covering the first end and the second end of the light emitting element, organic transmission layer including a light diffusion particle; and a color conversion layer on the organic transmission layer, the color conversion layer including a color conversion particle to convert a first color of light emitted from the light emitting element to a second color of light.
    Type: Application
    Filed: June 13, 2023
    Publication date: January 11, 2024
    Inventors: Jin Woo LEE, Zu Seok OH, Jeong Hyun LEE, Kyung Ah CHOI, Kook Hyun CHOI
  • Publication number: 20240010803
    Abstract: The embodiments relate to a polyamide-based film that is excellent in solvent resistance and optical properties, to a process for preparing the same, and to a cover window and a display device comprising the same. The polyamide-based film comprises a polyamide-based polymer, wherein when the 3D surface roughness of a first side of the film is measured, the volume (natural volume) between the surface and a reference plane placed at the elevation of the highest peak parallel to the surface plane is 100 ?m3 to 2,800 ?m3.
    Type: Application
    Filed: June 19, 2023
    Publication date: January 11, 2024
    Inventors: Hak Soo LEE, Sang Hun CHOI, Jin Woo LEE