Patents by Inventor Keechang Lee

Keechang 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: 20240067772
    Abstract: An epoxy compound having an aromatic ring represented by Formula 1 or Formula 2, a composition prepared from the epoxy compound, a semiconductor device prepared from the epoxy compound, an electronic device prepared from the epoxy compound, an article prepared from the epoxy compound, and a method of preparing the epoxy compound: E1-(M1)a1-(L1)b1-(M2)a2-L2-A1-L3-(M3)a3-(L4)b2-(M4)a4-E2??Formula 1 E3-(A2)c1-(L5)b3-(M5)a5-L6-(M6)a6-L7-(M7)a7-(L8)b4-(A3)c2-E4??Formula 2 In Formulae 1 and 2, M1, M2, M3, M4, M5, M6, M7, A1, A2, A3, L1, L2, L3, L4, L5, L6, L7, L8, E1, E2, E3, E4, a1, a2, a3, a4, a5, a6, a7, b1, b2, b3, b4, c1, and c2 are the same as defined in the detailed description.
    Type: Application
    Filed: October 24, 2023
    Publication date: February 29, 2024
    Inventors: Changho NOH, Insu LEE, Songwon HYUN, Yoonseok KO, Mijeong KIM, Keechang LEE, Sangsoo JEE
  • Patent number: 11827741
    Abstract: An epoxy compound having an aromatic ring represented by Formula 1 or Formula 2, a composition prepared from the epoxy compound, a semiconductor device prepared from the epoxy compound, an electronic device prepared from the epoxy compound, an article prepared from the epoxy compound, and a method of preparing the epoxy compound: E1-(M1)a1-(L1)b1-(M2)a2-L2-A1-L3-(M3)a3-(L4)b2-(M4)a4-E2??Formula 1 E3-(A2)c1-(L5)b3-(M5)a5-L6-(M6)a6-L7-(M7)a7-(L8)b4-(A3)c2-E4??Formula 2 In Formulae 1 and 2, M1, M2, M3, M4, M5, M6, M7, A1, A2, A3, L1, L2, L3, L4, L5, L6, L7, L8, E1, E2, E3, E4, a1, a2, a3, a4, a5, a6, a7, b1, b2, b3, b4, c1, and c2 are the same as defined in the detailed description.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: November 28, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Changho Noh, Insu Lee, Songwon Hyun, Yoonseok Ko, Mijeong Kim, Keechang Lee, Sangsoo Jee
  • Publication number: 20230236035
    Abstract: Provided are a content visualizing device and method that changes positions and shapes of route guidance content and driving related content based on a distance to an adjacent object, a current driving state, and an occurrence of a driving related event.
    Type: Application
    Filed: April 4, 2023
    Publication date: July 27, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: HeeSae LEE, KeeChang LEE
  • Patent number: 11650069
    Abstract: Provided are a content visualizing device and method that changes positions and shapes of route guidance content and driving related content based on a distance to an adjacent object, a current driving state, and an occurrence of a driving related event.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: May 16, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: HeeSae Lee, KeeChang Lee
  • Patent number: 11632536
    Abstract: A method for generating a three-dimensional (3D) lane model, the method including calculating a free space indicating a driving-allowed area based on a driving image captured from a vehicle camera, generating a dominant plane indicating plane information of a road based on either or both of depth information of the free space and a depth map corresponding to a front of the vehicle, and generating a 3D short-distance road model based on the dominant plane.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: April 18, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwiryong Jung, Young Hun Sung, KeeChang Lee, Kyungboo Jung
  • Patent number: 11415590
    Abstract: A processor-implemented posture determination method includes: estimating a rotational acceleration of a timepoint based on an angular velocity measured by a first sensor at the timepoint and a determined center of rotation of a previous timepoint; correcting an acceleration measured by a second sensor at the timepoint based on the rotational acceleration; and determining a center of rotation of the timepoint and a posture of the timepoint based on the corrected acceleration and an estimated posture of the timepoint.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: August 16, 2022
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB FOUNDATION
    Inventors: Hyun Cheol Jeon, Chan Gook Park, Keechang Lee, Jungmin Park, So Young Park
  • Publication number: 20220185947
    Abstract: An epoxy compound having an aromatic ring represented by Formula 1 or Formula 2, a composition prepared from the epoxy compound, a semiconductor device prepared from the epoxy compound, an electronic device prepared from the epoxy compound, an article prepared from the epoxy compound, and a method of preparing the epoxy compound: E1-(M1)a1-(L1)b1-(M2)a2-L2-A1-L3-(M3)a3-(L4)b2-(M4)a4-E2??Formula 1 E3-(A2)c1-(L5)b3-(M5)a5-L6-(M6)a6-L7-(M7)a7-(L8)b4-(A3)c2-E4??Formula 2 In Formulae 1 and 2, M1, M2, M3, M4, M5, M6, M7, A1, A2, A3, L1, L2, L3, L4, L5, L6, L7, L8, E1, E2, E3, E4, a1, a2, a3, a4, a5, a6, a7, b1, b2, b3, b4, c1, and c2 are the same as defined in the detailed description.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 16, 2022
    Inventors: Changho Noh, Insu Lee, Songwon Hyun, Yoonseok Ko, Mijeong Kim, Keechang Lee, Sangsoo Jee
  • Patent number: 11301970
    Abstract: An image processing method acquires an image, restores a saturated region in which a pixel in the image has a first reference value based on a first illuminance component of the image, enhances a dark region in which a value of a pixel in the image is less than a second reference value based on the restored saturated region and the first illuminance component, and outputs a dark region-enhanced image.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: April 12, 2022
    Assignees: Samsung Electronics Co., Ltd., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Hwiryong Jung, Moon Gi Kang, Seung Hoon Jee, Min Sub Kim, Wooshik Kim, Hyewon Moon, Keechang Lee, Sunghoon Hong
  • Publication number: 20220034921
    Abstract: A method of searching for a synthesis condition includes: designating N+1 vertices separated from each other, each having an experimental condition corresponding to a designated location in an N-dimensional space including N axes, each corresponding to a different experimental variable; performing a reflection operation for moving the first vertex determined based on experimental values corresponding to the vertices to an opposite side of an N?1 dimensional simplex based on a center point of the N?1 dimensional simplex corresponding to remaining N vertices; performing a projection operation for moving again the first vertex back to a location where a movement path of the first vertex and a predetermined boundary of the N-dimensional space cross each other when the first vertex is moved outside the predetermined boundary; and determining, as the synthesis condition, an experimental condition of a final vertex determined based on experimental values corresponding to vertices after the projection operation.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 3, 2022
    Inventors: Keechang Lee, Yoonseok Ko, Sangsoo Jee
  • Patent number: 11204253
    Abstract: A method and apparatus for displaying a virtual route estimates a position of a vehicle based on sensing data received asynchronously from sensors, and outputs a three-dimensional (3D) virtual route generated by registering a driving environment model corresponding to a driving environment of the vehicle and the position of the vehicle in map information.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: December 21, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyungboo Jung, Nahyup Kang, KeeChang Lee, Sunghoon Hong
  • Patent number: 11200746
    Abstract: A display method includes displaying, in a virtual environment, an object to which a light source is set. The method further includes illuminating an area around the object based on the light source.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: December 14, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: KeeChang Lee, Minsu Ahn, Inwoo Ha, Seungin Park, Hyong Euk Lee, Heesae Lee
  • Publication number: 20210058608
    Abstract: A method for generating a three-dimensional (3D) lane model, the method including calculating a free space indicating a driving-allowed area based on a driving image captured from a vehicle camera, generating a dominant plane indicating plane information of a road based on either or both of depth information of the free space and a depth map corresponding to a front of the vehicle, and generating a 3D short-distance road model based on the dominant plane.
    Type: Application
    Filed: November 6, 2020
    Publication date: February 25, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hwiryong JUNG, Young Hun SUNG, KeeChang LEE, Kyungboo JUNG
  • Patent number: 10900793
    Abstract: A vehicle path guiding method includes: generating, based on location information of a vehicle determined using first sensor data, vehicle path information to guide the vehicle to a path along which the vehicle is to be driven; determining a driving lane in which the vehicle is travelling based on an ambient image of the vehicle; correcting the generated vehicle path information based on a location of the determined driving lane; and displaying the corrected vehicle path information.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: January 26, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyungboo Jung, Young Hun Sung, KeeChang Lee, Won-Hee Lee, Hwi-Ryong Jung
  • Publication number: 20200400704
    Abstract: A processor-implemented posture determination method includes: estimating a rotational acceleration of a timepoint based on an angular velocity measured by a first sensor at the timepoint and a determined center of rotation of a previous timepoint; correcting an acceleration measured by a second sensor at the timepoint based on the rotational acceleration; and determining a center of rotation of the timepoint and a posture of the timepoint based on the corrected acceleration and an estimated posture of the timepoint.
    Type: Application
    Filed: December 9, 2019
    Publication date: December 24, 2020
    Applicants: Samsung Electronics Co., Ltd., SNU R&DB FOUNDATION
    Inventors: Hyun Cheol JEON, Chan Gook PARK, Keechang LEE, Jungmin PARK, So Young PARK
  • Patent number: 10863166
    Abstract: A method for generating a three-dimensional (3D) lane model, the method including calculating a free space indicating a driving-allowed area based on a driving image captured from a vehicle camera, generating a dominant plane indicating plane information of a road based on either or both of depth information of the free space and a depth map corresponding to a front of the vehicle, and generating a 3D short-distance road model based on the dominant plane.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 8, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwiryong Jung, Young Hun Sung, KeeChang Lee, Kyungboo Jung
  • Publication number: 20200349684
    Abstract: An image processing method acquires an image, restores a saturated region in which a pixel in the image has a first reference value based on a first illuminance component of the image, enhances a dark region in which a value of a pixel in the image is less than a second reference value based on the restored saturated region and the first illuminance component, and outputs a dark region-enhanced image.
    Type: Application
    Filed: August 23, 2019
    Publication date: November 5, 2020
    Applicants: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Hwiryong JUNG, Moon Gi KANG, Seung Hoon JEE, Min Sub KIM, Wooshik KIM, Hyewon MOON, Keechang LEE, Sunghoon HONG
  • Publication number: 20200333159
    Abstract: A method and apparatus for displaying a virtual route estimates a position of a vehicle based on sensing data received asynchronously from sensors, and outputs a three-dimensional (3D) virtual route generated by registering a driving environment model corresponding to a driving environment of the vehicle and the position of the vehicle in map information.
    Type: Application
    Filed: June 24, 2020
    Publication date: October 22, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyungboo JUNG, Nahyup KANG, KeeChang LEE, Sunghoon HONG
  • Patent number: 10810745
    Abstract: A processor-implemented learning method for an image segmentation includes training first duplicate layers, as duplications of trained first layers of a pre-trained model, so that a second feature extracted from a target image by the trained first duplicate layers is matched to a first feature extracted from a training image by the trained first layers; regularizing the trained first duplicate layers so that a similarity between the first feature and a third feature extracted from the training image by the regularized first duplicate layers meets a threshold; and training second duplicate layers, as duplications of trained second layers of the pre-trained model, to be configured to segment the target image based on the regularized first duplicate layers, the trained second layer being configured to segment the training image.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: October 20, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nahyup Kang, KeeChang Lee, Inwoo Ha
  • Patent number: 10755004
    Abstract: A method of modeling an object includes defining a state transition probability and a state of each of a plurality of particles forming the object; changing a state of a particle defined to be in a first state among the plurality of particles to a second state; applying a movement model to a particle defined to be in the second state among the plurality of particles; and changing a state of the particle defined to be in the second state to the first state based on the state transition probability.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: August 25, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Donghoon Sagong, Nahyup Kang, Minjung Son, KeeChang Lee, Hyong Euk Lee, Heesae Lee
  • Patent number: 10740626
    Abstract: A method and apparatus for identifying a driving lane extracts a road marking from an input image, generate a multi-virtual lane using the road marking and a segmentation image obtained by segmenting the input image into objects included in the input image based on a semantic unit, and identifies a driving lane of a vehicle based on a relative location of the driving lane in the multi-virtual lane.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: August 11, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nahyup Kang, KeeChang Lee, Inwoo Ha