公开(公告)号：US10911136B2

公开(公告)日：2021-02-02

申请号：US16203394

申请日：2018-11-28

Applicant: Electronics and Telecommunications Research Institute ,  FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Byung Jang Jeong ,  Woo Jin Byun ,  Ji-Hoon Yun ,  Jae-Han Lim ,  Wisnu Murti

IPC: H04B7/22 ,  H04B7/0456 ,  H04L1/00 ,  H04B1/00 ,  H04B7/08

Abstract: Disclosed are a communication method and communication apparatus using an ambient backscatter communication. A transmission apparatus may include generating a plurality of bitsets by fragmenting data based on a predetermined bitset length, mapping the plurality of bitsets to a plurality of switching patterns based on a data size, and controlling a reflection of a background radio frequency (RF) signal based on a corresponding mapped switching pattern, a total number of the plurality of switching patterns may be determined based on the bitset length, and each of the plurality of switching patterns may have a different length.

公开(公告)号：US20200324856A1

公开(公告)日：2020-10-15

申请号：US16304120

申请日：2017-02-03

Applicant: CHUNG-ANG UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION ,  FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Jung Yup KIM ,  Dong Jun SHIN

IPC: B62M6/50 ,  B62J45/411 ,  B62K11/02 ,  B62M9/00

Abstract: According to one embodiment of the present invention, provided is a power assisted driving system comprising: a measurement part for measuring an operation state of a crank; a control part for determining a voltage or current necessary for power assistance on the basis of the measured value of the measurement part; a motor part, to which the voltage or current is applied, for providing driving power; and a power supply part for providing electric power to components other than itself.

公开(公告)号：US20200277681A1

公开(公告)日：2020-09-03

申请号：US16617559

申请日：2018-11-23

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION ,  FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Joonho LEE ,  Sangchul SHIM ,  Byoungchul HWANG ,  Taeun HONG ,  Sangin LEE

IPC: C21D9/00 ,  C21D8/06 ,  C21D6/00 ,  C22C38/12 ,  C22C38/04 ,  C22C38/02

Abstract: A steel bar having yield strength of 700 MPa class, excellent yield ratio, and excellent uniform elongation property is provided. The steel bar includes bainite and ferrite included in a center of the steel bar and bainite accounts for 20 to 80% by volume.

公开(公告)号：US20200162712A1

公开(公告)日：2020-05-21

申请号：US16515175

申请日：2019-07-18

Applicant: Foundation for Research and Business, Seoul National University of Science and Technology

Inventor： Ji Hoon YUN

IPC: H04N13/111 ,  H04N13/264 ,  H04N13/279 ,  H04N13/156 ,  H04N13/194

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.

公开(公告)号：US20200083814A1

公开(公告)日：2020-03-12

申请号：US16469692

申请日：2017-07-05

Applicant: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Se Wan CHOI

IPC: H02M3/335 ,  H02J7/02 ,  H02M7/06 ,  H02M1/42 ,  H02M1/14 ,  H02M1/44 ,  B60L53/22

Abstract: According to a single-stage interleaved software switching converter, power factor is controlled and battery charging and current are integrally controlled on the basis of a PFC circuit of a single-stage interleaving type so that efficiency of a charging device is enhanced and the cost is reduced. Further, it is possible to remove harmful electromagnetic radiation; enhance power density and durability by using a film-type capacitor instead of the conventional electrolytic capacitor; reduce switching loss by soft switching operation and to reduce the volume of a filter unit; design magnetizing current to be small by removing a low-frequency component of a transformer and to reduce the volume; and perform high-power charging according to the number of windings of the transformer.

公开(公告)号：US20200072830A1

公开(公告)日：2020-03-05

申请号：US16216306

申请日：2018-12-11

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE ,  FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Tae Geol LEE ,  Hee Kyung NA ,  Jung Sub WI ,  Jong G. OK

IPC: G01N33/543 ,  G01N21/552

Abstract: Provided is a nanoplasmonic sensor and a kit for biomolecule analysis, and a method of analyzing a biomolecule using the same. The method includes: providing the nanoplasmonic sensor including a dielectric grating extending in one direction, and a metal structure disposed to cover an upper surface and a side surface of the dielectric grating and have at least one bent portion; immobilizing a first probe molecule on a surface of the metal structure; hybridizing an analyte with the first probe molecule by introducing the analyte having a base sequence complementary to the first probe molecule; binding a second probe molecule that is hybridized with the first probe molecule to the analyte; binding an enzyme to the second probe molecule; introducing a substrate that reacts with the enzyme to produce a precipitate by an enzymatic reaction; and measuring localized surface plasmon resonance in the metal structure.

公开(公告)号：US20250124342A1

公开(公告)日：2025-04-17

申请号：US18529584

申请日：2023-12-05

Applicant: Foundation for Research and Business, Seoul National University of Science and Technology

Inventor： Seung Eun LEE ,  Jeong Eun KIM ,  Young Woo JEONG

IPC: G06N20/00

Abstract: Provided is a federated learning method and system using shared learning data. The federated learning method includes determining shared learning data to be provided to federated learning devices, learning each of artificial intelligence (AI) models by each of the federated learning devices using the shared learning data and unique learning data of each of the federated learning devices, and determining a final model by a final model determination server based on a learning result of the AI models.

公开(公告)号：US20240354484A1

公开(公告)日：2024-10-24

申请号：US18537878

申请日：2023-12-13

Applicant: Foundation for Research and Business, Seoul National University of Science and Technology

Inventor： Jae Won NAM ,  Jin Won HYUN

IPC: G06F30/398

CPC classification number: G06F30/398 ,  G06F2111/06

Abstract: Disclosed herein are integrated circuit design system and method including: a genetic algorithm model unit configured to form a first parent generation using a performance simulation result for an arbitrary integrated circuit design point, form a child generation from the first parent generation using a genetic algorithm, form a surrounding design point based on the first parent generation as a mutant generation, and then select N points with the highest performance among the first parent generation, the child generation, and the mutant generation as a second parent generation; a comparison unit configured to compare a design range of the second parent generation and a preset reference range; and a regression model unit configured to train a regression model using the design range of the second parent generation when a design range of the second parent generation is narrower than or equal to the preset reference range.

公开(公告)号：US20240182769A1

公开(公告)日：2024-06-06

申请号：US18285507

申请日：2021-10-29

Applicant: Foundation for Research and Business, Seoul National University of Science and Technology

Inventor： Hyung Jun KOO ,  Ji Hye KIM ,  Akyildiz KUBRA

IPC: C09K5/14 ,  C08J5/18 ,  C08K3/08 ,  C09K5/10

CPC classification number: C09K5/14 ,  C08J5/18 ,  C08K3/08 ,  C09K5/10 ,  C08J2383/04 ,  C08K2003/085 ,  C08K2201/001 ,  C08K2201/005 ,  C08K2201/011 ,  C08K2201/014

Abstract: The present disclosure relates to a heat sink paste, a heat sink film and manufacturing methods therefor. The heat sink paste according to an embodiment of the present disclosure includes an elastic polymer resin and conductive particles dispersed in the elastic polymer resin, wherein the conductive particles include solid metal particles and liquid metal particles.

公开(公告)号：US11875490B2

公开(公告)日：2024-01-16

申请号：US17558969

申请日：2021-12-22

Applicant: Foundation for Research and Business, Seoul National University of Science and Technology

Inventor： Yeejin Lee ,  Byeongkeun Kang ,  Seongyeop Yang ,  Taeha Kim

IPC: G06T5/50 ,  G06T7/30 ,  G06V10/40

CPC classification number: G06T5/50 ,  G06T7/30 ,  G06V10/40 ,  G06T2207/20084 ,  G06T2207/20221

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.