公开(公告)号：US12205323B2

公开(公告)日：2025-01-21

申请号：US17702258

申请日：2022-03-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Joon-Soo Kim ,  Kug-Jin Yun ,  Jun-Young Jeong ,  Suk-Ju Kang ,  Jung-Hee Kim ,  Woo-June Park

IPC: G06T7/73

Abstract: Disclosed herein are an apparatus for estimating a camera pose using multi-view images of a 2D array structure and a method using the same. The method performed by the apparatus includes acquiring multi-view images from a 2D array camera system, forming a 2D image link structure corresponding to the multi-view images in consideration of the geometric structure of the camera system, estimating an initial camera pose based on an adjacent image extracted from the 2D image link structure and a pair of corresponding feature points, and estimating a final camera pose by reconstructing a 3D structure based on the initial camera pose and performing correction so as to minimize a reprojection error of the reconstructed 3D structure.

公开(公告)号：US11959909B2

公开(公告)日：2024-04-16

申请号：US16426795

申请日：2019-05-30

Applicant: Sogang University Research Foundation

Inventor： Jeong-Woo Choi ,  Won Jun Lee ,  Jae Wook Shin

IPC: G01N33/50 ,  A61P25/00 ,  B01J19/00 ,  B01L3/00 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00 ,  C12M1/12 ,  C12M3/00

CPC classification number: G01N33/5058 ,  A61P25/00 ,  B01J19/0093 ,  B01L3/5027 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00 ,  C12M21/08 ,  C12M25/14

Abstract: The present disclosure provides a basal ganglia-on-a-chip for screening therapeutic agents for brain and nervous system diseases and a method for fabricating the same. The present invention provides a method for screening therapeutic agents for dopamine-dependent brain and nervous system diseases by using a basal ganglia-on-a-chip. When the basal ganglia-on-a-chip of the present invention is used in the effect evaluation of therapeutic agents for brain and nervous system diseases, the effect evaluation of therapeutic candidate substances can be economically and promptly carried out compared with an existing technique.

公开(公告)号：US20240010867A1

公开(公告)日：2024-01-11

申请号：US18358806

申请日：2023-07-25

Applicant: Samsung Display Co., LTD. ,  Sogang University Research Foundation

Inventor： Hyunjoon Oh ,  Kyungtae Kim ,  Boa Kim ,  Sanghoon Kim ,  Sangil Park ,  Heonjung Shin ,  Hyejin Oh ,  Jeoungsub Lee ,  Minhoon Choi ,  Taekyung Yang ,  Heewoo Rhee ,  Sungmin Cho

IPC: C09D175/04 ,  C09C1/44 ,  C09C1/36 ,  C09C3/12 ,  C08G18/10 ,  C09C1/04 ,  C09C1/40 ,  C09C1/30 ,  C08K9/08

CPC classification number: C09D175/04 ,  C09C1/44 ,  C09C1/3684 ,  C09C3/12 ,  C08G18/10 ,  C08K9/06 ,  C09C1/407 ,  C09C1/3072 ,  C09C1/3081 ,  C08K9/08 ,  C09C1/043

Abstract: Provided are a nanocomposite body, a method of manufacturing the nanocomposite body, and a nanocomposite film including the nanocomposite body. The nanocomposite body includes: inorganic particles; a polymer matrix; and grafting polymer chains each of which includes a polyol structure, wherein the inorganic particles and the polymer matrix are linked by the grafting polymer chains.

公开(公告)号：US20220378953A1

公开(公告)日：2022-12-01

申请号：US17885630

申请日：2022-08-11

Applicant: SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Seung-Yop LEE ,  Se-Yun JEONG ,  Han-Bok SEO ,  Eun Ae PARK ,  Won-Joong KIM

IPC: A61K49/22 ,  A61K49/00

Abstract: Proposed is to provide a size-varying bubble complex and a method of preparing the same. More specifically, the size-varying bubble complex and the method of preparing the same are proposed, wherein the bubble complex is capable of being repeatedly varied in size by changing phases of perfluorocarbon by external stimuli, by including a shell that encapsulates a core made of the perfluorocarbon and protects the core by expanding and contracting together when the core expands and contracts.

公开(公告)号：US11406950B2

公开(公告)日：2022-08-09

申请号：US16342973

申请日：2018-03-06

Applicant: SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Gihun Son ,  Jaewon Lee

IPC: B01F31/80 ,  B06B1/02 ,  B01F23/23 ,  B01F101/00

Abstract: Provided is a bubble volume control method and apparatus, and more particularly, to a bubble volume control method and apparatus for controlling the volume of a bubble by increasing or decreasing the volume of the bubble by emitting an ultrasonic wave having a resonance frequency corresponding to the size of the bubble located at the bottom of a container containing a liquid, such as water with bubbles composed of air, vapor, etc., toward the bubble by using an ultrasonic generator above the container, and maximizing a function of adjusting the volume of a bubble through a resonance effect by adjusting a liquid surface height of a liquid with the bubble according to a wavelength of an emitted ultrasonic wave.

公开(公告)号：US11257488B2

公开(公告)日：2022-02-22

申请号：US16299586

申请日：2019-03-12

Applicant: SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Hyung Min Park ,  Seo Young Lee

IPC: G10L21/0208 ,  G10L15/20 ,  G10L15/22 ,  G01S3/80 ,  G10L21/0364 ,  G10L25/84

Abstract: Provided is a source localization in an apparatus for performing a source localization, a target sound source enhancement or speech recognition. The source localization method using input signals input from a plurality of microphones, comprising steps of: (a) obtaining a log likelihood function or an auxiliary function under the assumption that a target source signal mixed with noises satisfies a CGMM model; (b) obtaining an equation for estimating parameter values of the log likelihood function or the auxiliary function so that a value of the log likelihood function or the auxiliary function is maximized recursively in each time frame; (c) estimating a covariance matrix recursively in each time frame; and (d) estimating a steering vector recursively by using the estimated covariance matrix, wherein the steering vector of the target sound source is estimated from the input signals.

公开(公告)号：US11246560B2

公开(公告)日：2022-02-15

申请号：US16338610

申请日：2017-08-09

Applicant: SAMSUNG MEDISON CO., LTD. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Kang Sik Kim ,  Tae-kyong Song ,  Ji Won Park

IPC: A61B8/06 ,  A61B8/14 ,  A61B8/00 ,  A61B8/08 ,  A61B5/026

Abstract: Provided are an ultrasound probe, an ultrasound imaging apparatus, an ultrasound imaging system including the ultrasound imaging apparatus, and a method of controlling the ultrasound imaging apparatus. In accordance with one aspect, the ultrasound probe includes a transducer configured to receive an echo ultrasound signal by emitting a plane wave at least three times at different emission angles or at emission angles which are dependent on each other; and a probe controller configured to obtain an ultrasound image by determining a Doppler shift frequency from the received echo ultrasound signal and calculating at least one of a speed of an object and a speed of the object in each of directions on the basis of the determined Doppler shift frequency and either the different emission angles or the dependent emission angles.

公开(公告)号：US20210288070A1

公开(公告)日：2021-09-16

申请号：US17203352

申请日：2021-03-16

Applicant: SK hynix Inc. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Woo Young CHOI

IPC: H01L27/11582 ,  H01L29/40 ,  H01L29/423 ,  H01L29/51 ,  H01L21/28 ,  H01L21/3105

Abstract: A 3-dimensional flash memory device and methods of fabricating and driving the same are provided. The device includes: a channel layer extending over a substrate in a first direction perpendicular to a surface of the substrate; an information storing layer extending along a sidewall of the channel layer in the first direction; control gates each surrounding, the channel layer, with the information storing layer between the channel layer and the control gates; an insulating layer being between the control gates in the first direction and separating the control gates from each other; a fixed charge region disposed at an interface of the insulating layer and the information storing layer or in a portion of the information storing layer between the control gates in the first direction; and a doped region induced by the fixed charge region and disposed at a surface of the channel layer facing the fixed charge region.

公开(公告)号：US20210081400A1

公开(公告)日：2021-03-18

申请号：US16954024

申请日：2018-12-13

Applicant: SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Soo Yong PARK ,  Dong Young LEE

IPC: G06F16/23 ,  G06F16/22 ,  H04L9/06

Abstract: The present disclosure relates to a search technology using a data structure for supporting multi-search in a blockchain-based IoT environment, and a method for providing a search function for blockchain includes receiving block data via a network, verifying transactions included in the received block data, and adding the block data as a node to an index tree of multidimensional index structures based on information about each transaction in the transaction verification.

公开(公告)号：US10895798B2

公开(公告)日：2021-01-19

申请号：US16121392

申请日：2018-09-04

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Young Kim ,  Kanghee Won ,  Himchan Park ,  Jinwook Burm ,  Hoon Song ,  Hongseok Lee

IPC: G02F1/29 ,  G03H1/00

Abstract: A beam deflector, a holographic display device including the beam deflector, and a method of driving the beam deflector are provided. The beam deflector includes first electrodes spaced apart from each other on a first substrate, second electrodes spaced apart from each other on a second substrate, a liquid crystal layer between the first substrate and the second substrate, and a controller configured to cause active prisms to be formed in the liquid crystal layer and to form a floating zone by turning off a voltage of at least one of the first electrode and the second electrode disposed between adjacent ones of the active prisms.