Patents Assigned to Seoul National University
  • Method and apparatus with data processing
    Patent number: 11886985
    Abstract: A processor-implemented data processing method includes: generating compressed data of first matrix data based on information of a distance between valid elements included in the first matrix data; fetching second matrix data based on the compressed data; and generating output matrix data based on the compressed data and the second matrix data.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: January 30, 2024
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Yuhwan Ro, Byeongho Kim, Jaehyun Park, Jungho Ahn, Minbok Wi, Sunjung Lee, Eojin Lee, Wonkyung Jung, Jongwook Chung, Jaewan Choi
  • SMART SHIRTS FOR ASSISTING LUMBAR SPINE AND ITS CONTROL METHOD
    Publication number: 20240023647
    Abstract: Smart shirts for assisting lumbar spine according to an embodiment of the present disclosure includes a clothing body worn by a user; a sensor unit that includes a first sensor and a second sensor provided on a rear surface of the clothing body and disposed in a thoracic portion and a sacral portion, respectively, to measure a motion of the lumbar spine; a control unit that analyzes an operation state of the lumbar spine based on a measurement value of the sensor unit; and a band portion that is worn on the clothing body and surrounds the waist.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 25, 2024
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sun Gun CHUNG, Keewon KIM, Ju Chan KIM
  • X-RAY IMAGING DEVICE FOR MINIMALLY INVASIVE SURGERY
    Publication number: 20240023910
    Abstract: The present invention relates to an X-ray imaging device for minimally invasive surgery, the device including: a rod having a clamp module disposed at a first end of the rod and including a first clamp body, a second clamp body, and a clamp support; an X-ray emission module; an X-ray sensing module; and a manipulation module, in which the rod is inserted into the human body, X-rays are emitted from the X-ray emission module with the first end of the first clamp body and the first end of the second clamp body open with a lesion positioned therebetween in the human body, and the X-rays travel through the lesion and is then sensed by the X-ray sensing module.
    Type: Application
    Filed: October 5, 2023
    Publication date: January 25, 2024
    Applicants: Korea University Research and Business Foundation, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Hyun-Koo KIM, Jae-Sung LEE
  • LIQUID CRYSTAL POLARIZATION ANTENNA
    Publication number: 20240030618
    Abstract: Provided is a liquid crystal polarization antenna including a plurality of unit cells arranged two-dimensionally in a first direction and a second direction perpendicular to the first direction, and a conductive line configured to electrically connect to each other the unit cells arranged in the first direction of the plurality of unit cells.
    Type: Application
    Filed: July 18, 2023
    Publication date: January 25, 2024
    Applicant: Seoul National University R&DB Foundation
    Inventors: Jungsuek OH, Byeongju MOON
  • Intercellular proximity labeling using eGRASP
    Patent number: 11879895
    Abstract: The present disclosure relates to an intercellular proximity labeling technique. According to an embodiment of the present disclosure, intercellular proximities can be distinguished by cell types, in particular, synapses of nerve cells can be distinguished by types.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: January 23, 2024
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Bong-Kiun Kaang, Jun Hyeok Choi, Ji-il Kim, Dong Ii Choi, Su-Eon Sim
  • Method and apparatus with bit-serial data processing of a neural network
    Patent number: 11880768
    Abstract: A processor-implemented data processing method includes encoding a plurality of weights of a filter of a neural network using an inverted two's complement fixed-point format; generating weight data based on values of the encoded weights corresponding to same filter positions of a plurality of filters; and performing an operation on the weight data and input activation data using a bit-serial scheme to control when to perform an activation function with respect to the weight data and input activation data.
    Type: Grant
    Filed: March 1, 2023
    Date of Patent: January 23, 2024
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Seungwon Lee, Dongwoo Lee, Kiyoung Choi, Sungbum Kang
  • Host, operating method of host and storage system
    Patent number: 11880593
    Abstract: A host includes: an index tree storing an index including information for identifying a versioning key; and an index update buffer storing a write key included in data subject to a write request and the versioning key corresponding to the write key. When a preset update condition is satisfied, the host transfers the versioning key stored in the index update buffer to the index tree, and when the index update buffer requires recovery, the host designates a recovery section of memory of the storage device including data corresponding to the versioning key which has not been updated to the index tree, to be read by a plurality of threads, reads data included in the recovery section from the storage device through the plurality of threads, and inserts the read data into the index update buffer to recover the index update buffer.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: January 23, 2024
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jin-Soo Kim, Jaehoon Shim, Carl Duffy
  • Phase mixing circuit and multi-phase clock signal alignment circuit including the same
    Patent number: 11881860
    Abstract: A phase mixing circuit for a multi-phase signal includes a jitter cancellation circuit configured to mix phases of a signal input to a first node and a signal input to a second node to produce signals at a third node and a fourth node; and a delay adjustment circuit configured to adjust delays of the signals output from the third node and the fourth node to produce signals at a fifth node and a sixth node.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: January 23, 2024
    Assignees: SK hynix Inc., Seoul National University R&DB Foundation
    Inventors: Shin-Hyun Jeong, Yongun Jeong, Suhwan Kim
  • SERVER, OPERATING METHOD OF THE SAME, AND SYSTEM
    Publication number: 20240019567
    Abstract: An operating method of a server for calculating a position of a measurement target includes receiving first measurement information including a result of measuring the measurement target by a first electronic device, receiving second measurement information including a result of measuring the measurement target by a second electronic device, and calculating the position of the measurement target based on the first measurement information and the second measurement information.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 18, 2024
    Applicants: Samsung Electronics Co., Ltd., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Seong-Hwan HYUN, Seong-Cheol KIM, Jihye KIM
  • RESONANT CAVITY STRUCTURE INCLUDING WAVELENGTH CONVERSION MATERIAL
    Publication number: 20240021762
    Abstract: A resonant cavity structure includes an upper layer in which first dielectric layers and second dielectric layers having different refractive indices are alternately stacked, a lower layer in which the first dielectric layers and the second dielectric layers are alternately stacked, and a cavity formed between the upper layer and the lower layer, wherein the cavity includes a wavelength conversion material that absorbs light having a first wavelength and emits light having a second wavelength different from the first wavelength, the resonant cavity structure is designed so that resonance occurs in the cavity at the first wavelength, and is provided so that an excitation light of the first wavelength is incident from below the lower layer.
    Type: Application
    Filed: November 9, 2021
    Publication date: January 18, 2024
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Heon Su JEON, Tae Yun LEE
  • Nano printing device and Raman analysis apparatus using same
    Patent number: 11874203
    Abstract: A Raman spectroscopy apparatus using a nano printing device is provided to perform Raman spectroscopy on nanoscale nanostructures printed from the nano printing device. The Raman spectroscopy apparatus includes a laser light source configured to generate and emit a laser light to the nanostructures, and a Raman detector configured to collect spectroscopic information from the light scattered by the nanostructures.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: January 16, 2024
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Won Ho Jhe, Sang Min An, Chung Man Kim, Jong Geun Hwang
  • Single motor with dual inverters using voltage vector
    Patent number: 11876469
    Abstract: A motor driving apparatus which drives a motor including a plurality of windings corresponding to a plurality of phases, respectively, includes: a first inverter including a plurality of first switching elements and connected to a first end of each of the windings; a second inverter including a plurality of second switching elements and connected to a second end of each of the windings; and a controller obtaining a vector corresponding to a voltage command of the motor by combining switching vectors which cause difference between a common mode voltage of the first inverter and a common mode voltage of the second inverter to be zero and configured to control the plurality of first switching elements and the plurality of second switching elements in a pulse width modulation method based on the obtained vector.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: January 16, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Kang Ho Jeong, Sang Cheol Shin, Jung Ik Ha, Hyeon Gyu Choi, Jae Hoon Sim
  • Resettable gears and manufacturing method therefor
    Patent number: 11873548
    Abstract: Disclosed is a gear including a resettable metallic glass. The gear of the present disclosure includes, as a base material, a resettable metallic glass, wherein the resettable metallic glass includes at least one metal element selected from each of (a) the group consisting of Ti, Zr, and Hf and (b) the group consisting of Fe, Co, Ni, Cu, and Zn, and further includes at least one metal element to maximize the complexity in the thermodynamic enthalpy of mixing among constituent elements, thereby including multiple resetting cores in various atomic-scale cluster forms in an amorphous matrix, leading to a structure with maximized structural complexity.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: January 16, 2024
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Eun Soo Park, Geun Hee Yoo, Kook Noh Yoon, Ji Young Kim, Wook Ha Ryu
  • Method and apparatus for buffer management in cloud based virtual reality services
    Patent number: 11876947
    Abstract: Provided is a method for creating a virtual reality content, storing the virtual reality content in a transmission buffer, and after that, managing the transmission buffer. A server creates the virtual reality content based on user's motion information, stores the virtual reality content in the transmission buffer and is allowed to modify the virtual reality content stored in the transmission buffer based on subsequently received user's motion information, so that the most recent user's motion information can be appropriately reflected in the virtual reality content. It is possible to provide a more immersive virtual reality service.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: January 16, 2024
    Assignee: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventor: Ji Hoon Yun
  • Semiconductor device performing in-memory processing and operation method thereof
    Patent number: 11875840
    Abstract: A semiconductor device includes a cell circuit including a plurality of memory arrays, and a control circuit configured to control the cell circuit. A memory array of the plurality of memory arrays has a plurality of sub-arrays including a first sub-array and a second sub array, and an array connecting circuit configured to connect bit lines of the first sub-array to respective corresponding bit lines of the second sub-array according to a copy signal. The semiconductor device may further include a partial sum circuit configured to perform charge sharing between a plurality of bit lines of the first sub-array.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: January 16, 2024
    Assignees: SK hynix Inc., Seoul National University R&DB Foundation
    Inventors: Hae Rang Choi, Sungjoo Yoo
  • Method and apparatus for stitching images
    Patent number: 11875490
    Abstract: An image stitching method and apparatus are disclosed. The image stitching apparatus includes at least one processor and a memory. The processor may obtain a plurality of images at different viewpoints, estimate homographies of each of the plurality of images, generate an aligned image by aligning the plurality of images based on the homographies of each of the plurality of images, obtain a collective energy map by inputting the aligned image to a neural network, estimate a stitching line of the aligned image based on the collective energy map, and generate a stitched image by blending the aligned image based on the stitching line.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: January 16, 2024
    Assignee: Foundation for Research and Business, Seoul National University of Science and Technology
    Inventors: Yeejin Lee, Byeongkeun Kang, Seongyeop Yang, Taeha Kim
  • METHODS FOR FORMING COATING FILMS AND SUBSTRATE PROCESSING APPARATUS INCLUDING PARTS MANUFACTURED BY SUCH METHODS
    Publication number: 20240011146
    Abstract: Provided herein are methods of forming a coating film that include providing a coating source including an orthorhombic vernier phase rare-earth element oxyfluoride and a part in a vacuum chamber, and performing a physical vapor deposition (PVD) process to form the coating film the part, wherein the coating film includes the orthorhombic vernier phase rare-earth element oxyfluoride. Apparatus including parts having coating films comprising an orthorhombic vernier phase rare-earth element oxyfluoride are also provided.
    Type: Application
    Filed: June 5, 2023
    Publication date: January 11, 2024
    Applicant: Seoul National University R&DB Foundation
    Inventors: Seungjun LEE, Nongmoon HWANG
  • Apparatus and method with compressed neural network computation
    Patent number: 11868428
    Abstract: A neural network includes a drop layer configured to drops feature values. A method of computation using the neural network includes extracting feature data from input data using a first portion of a neural network, generating compressed representation data of the extracted feature data by dropping a feature value from the extracted feature data at a drop layer of the neural network based on a drop probability corresponding to the feature value, and indicating an inference result from the compressed representation data using a second portion of the neural network.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: January 9, 2024
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Seon Min Rhee, Jaekyeom Kim, Gunhee Kim, Minjung Kim, Dongyeon Woo, Seungju Han
  • System for detecting anomaly and method for setting threshold thereof
    Patent number: 11868199
    Abstract: The present disclosure relates to a system for detecting an anomaly and a method for setting a threshold thereof. The method includes setting a minimum true positive rate (TPR) and a differentiation slope based on a user input, creating a receiver operating characteristic (ROC) curve using anomaly data and normal data, estimating a true negative rate (TNR) from the ROC curve based on the minimum TPR and the differentiation slope, and estimating and setting the threshold based on the estimated TNR.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: January 9, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, SEOUL NATIONAL UNIVERSITY R&DS FOUNDATION
    Inventors: Ji Hoon Kim, Sung Soo Park, Chang Woo Chun, Song Eun Lee, Hyun Soo Cho, Jun Yeob Kim, Sang Goo Lee
  • Method and apparatus with homomorphic encryption
    Patent number: 11870889
    Abstract: A processor-implemented method with homomorphic encryption includes: receiving a first ciphertext corresponding to a first modulus; generating a second ciphertext corresponding to a second modulus by performing modulus raising on the first ciphertext; and performing bootstrapping by encoding the second ciphertext using a commutative property and an associative property of operations included in a rotation operation.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: January 9, 2024
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R & DB Foundation, Industry Academic Cooperation Foundation, Chosun University
    Inventors: Jong-Seon No, Yongwoo Lee, Young-Sik Kim