Patents Assigned to Advanced Institute of Science and Technology
  • Optical measurement device with universal metasurface and optical measuring method using the same
    Patent number: 12104948
    Abstract: An optical measurement device according to an aspect of the present disclosure includes a universal metasurface on which light is incident, a polarization sensor configured to measure a polarization state of light passing through the universal metasurface, and a controller configured to collect a quantitative differential interference contrast (QDIC) image for the x polarization of incident light that is collected by the polarization sensor, a QDIC image for y polarization, and a quantitative relative phase (QRP) image representing a relative phase difference between the x polarization and y polarization and configured to calculate intensity, a phase or polarization information of the incident light.
    Type: Grant
    Filed: August 10, 2023
    Date of Patent: October 1, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jonghwa Shin, Taeyong Chang, Joonkyo Jung
  • Method and apparatus for generating motion of object
    Patent number: 12106018
    Abstract: A method of simulating a motion of an object controlling another object based on an example motion or a previously generated motion of the object is disclosed. The method includes refining a motion of a first object based on a motion of the first object predicted based on a motion specification, and on a trajectory of a second object controlled by the first object, and simulating the motion of the first object and the trajectory of the second object based on a vector for controlling joints of the first object that is generated based on the refined motion.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: October 1, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Junyong Noh, Seokpyo Hong, Daseong Han, Kyungmin Cho, Sung Yong Shin
  • Method of fabricating nanostructures using macro pre-patterns
    Patent number: 12103844
    Abstract: A method of fabricating nanostructures using macro pre-patterns according to the present invention, which comprises either depositing a target material on a substrate having macro pre-patterns formed thereon, or applying a target material to a substrate and then forming macro pre-patterns on the substrate, and then depositing the target material on the side surface of the macro pre-patterns by an ion bombardment phenomenon occurring during etching, provides a three-dimensional nanostructures with high aspect ratio and uniformity can be fabricated by a simple process at low cost by using the ion bombardment phenomenon occurring during physical ion etching, thereby achieving the high performance of future nano-devices, such as nanosized electronic devices, optical devices, bio devices and energy devices.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: October 1, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hee-Tae Jung, Hwan-Jin Jeon, Woo-Bin Jung
  • LOW-POWER AI PROCESSING SYSTEM AND METHOD COMBINING ARTIFICIAL NEURAL NETWORK AND SPIKING NEURAL NETWORK
    Publication number: 20240320472
    Abstract: A low-power artificial intelligence (AI) processing system combining an artificial neural network (ANN) and a spiking neural network (SNN) includes an ANN including an artificial layer, an SNN configured to output an artificial layer of the ANN as the same operation result, a main controller configured to calculate an ANN computational cost and an SNN computational cost for each artificial layer, an operation domain selector configured to select an operation domain having a lower computational cost by comparing the ANN computational cost and the SNN computational cost, and an equivalent converter configured to form a combined neural network by converting the artificial layer of the ANN into a spiking layer of the SNN according to selection of an SNN operation domain of the operation domain selector. Therefore, there is no loss of accuracy when compared to the ANN.
    Type: Application
    Filed: March 22, 2024
    Publication date: September 26, 2024
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hoi Jun YOO, Seong Yon HONG
  • Method and apparatus for controlling power of hybrid vehicle considering driving environment
    Patent number: 12097840
    Abstract: A power control method and apparatus in consideration of a driving environment of a hybrid vehicle is provided. The method and apparatus for controlling a power of a hybrid vehicle enable real-time application while having adaptability to various driving environment. For a hybrid vehicle, the power control method and apparatus provide optimum fuel efficiency performance in any driving environment through power control considering the current driving environment in real time.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: September 24, 2024
    Assignee: KAIST (Korea Advanced Institute of Science and Technology)
    Inventors: Kyung Soo Kim, Kyung Hwan Choi, In Gwun Jang
  • STRETCHABLE ORGANIC LIGHT EMITTING DIODE AND MANUFACTURING METHOD THEREOF
    Publication number: 20240298476
    Abstract: Disclosed are a stretchable organic light emitting diode (OLED) and a manufacturing method thereof. The stretchable OLED may include a plurality of isolated regions configured to form an arrangement while protruding in a vertical direction; and a hidden light emitting region configured to interconnect the isolated regions and to expand and contract in the vertical direction.
    Type: Application
    Filed: October 24, 2023
    Publication date: September 5, 2024
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Seunghyup Yoo, Donggyun Lee, Hanul Moon, Taehyun Kim, Subon Kim
  • Strong laser scanner matching method and apparatus considering movement of ground robot
    Patent number: 12080071
    Abstract: Robust laser scanner matching method and device considering a movement of a ground robot are disclosed. A scan matching method according to an embodiment of the inventive concept includes receiving two point clouds, sequentially inspecting height values until a point is within a specific height range to search for correspondence points between the two point clouds, and performing scan matching between the two point clouds based on the search result of the correspondence points.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: September 3, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hyeon Myeong, Hyungjin Kim, Seungwon Song
  • DIELECTROPHORESIS-BASED DYNAMIC SERS NANOELEMENT FOR CLASSIFICATION AND ANALYSIS OF METABOLITES
    Publication number: 20240288402
    Abstract: Provided is a dielectrophoresis-based dynamic Surface-Enhanced Raman Spectroscopy (SERS) nanoelement for the classification and analysis of metabolites. A method for analyzing metabolites using a dielectrophoresis-based dynamic SERS nanoelement according to an embodiment of the present invention may comprise the steps of: preparing a dynamic SERS nanoelement in which a surface region is formed as an array; applying voltage to the dynamic SERS nanoelement; and classifying the metabolites of an analysis subject according to region by controlling the polarity of the dynamic SERS nanoelement according to the voltage applied.
    Type: Application
    Filed: November 17, 2022
    Publication date: August 29, 2024
    Applicants: Korea Advanced Institute of Science and Technology, Samsung Life Public Welfare Foundation
    Inventors: Yeonsik Jung, Minjae Ku, Seunghee Cho, Hyungjoon Park, Minjoon Kim, Min Young Lee
  • Pre-concentrator with aligned three-dimensional porous structure and method of manufacturing the same
    Patent number: 12070736
    Abstract: The disclosed pre-concentrator comprises: a base substrate having a trench; a metal layer conformally disposed along the inner surface of the trench; and a three-dimensional porous nanostructure disposed on the metal layer in the trench and having aligned pores connected to each other in three dimensions. The pre-concentrator can improve the concentration performance of a sample and the thermal desorption efficiency of a concentrated sample.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: August 27, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Seokwoo Jeon, Donghwi Cho, Junyong Park
  • METHOD AND APPARATUS FOR ACCELERATING GNN PRE-PROCESSING
    Publication number: 20240281645
    Abstract: Provided is an apparatus for accelerating graph neural network (GNN) pre-processing, the apparatus including a conversion unit configured to convert an original graph in a coordinate list (COO) format into a graph in a compressed sparse row (CSR) format, a sub-graph generation unit configured to generate a sub-graph with a reduced degree of the graph in the CSR format, and an embedding table generation unit configured to generate an embedding table corresponding to the sub-graph.
    Type: Application
    Filed: August 16, 2023
    Publication date: August 22, 2024
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Myoungsoo JUNG, Seungkwan Kang, Donghyun Gouk, Miryeong Kwon, Hyunkyu Choi, Junhyeok Jang
  • Semiconductor device performing a multiplication and accumulation operation
    Patent number: 12062411
    Abstract: A semiconductor device includes a cell block and a data block. The cell block includes an operation circuit having a first capacitor and a second capacitor and an input circuit configured to couple the first capacitor and the second capacitor to a bit line according to differential voltages provided via word lines and corresponding to a first data. The data block includes a capacitor array having a variable capacitance corresponding to a value of a second data; and a coupling switch configured to couple the bit line and the data block. The cell block and the data block may be used to perform a Multiply and Accumulate (MAC) operation.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: August 13, 2024
    Assignees: SK hynix Inc., Korea Advanced Institute of Science and Technology
    Inventors: Minki Jeong, Wanyeong Jung
  • Micro-separator having stationary phase with three dimensional nano-structure and method for manufacturing the same
    Patent number: 12055528
    Abstract: A disclosed micro-separator for gas chromatography includes a base substrate having a trench, a channel column disposed in the trench, and a cover member combined with the base substrate and covering the channel column. The channel column includes a stationary phase having pores ordered and three-dimensionally connected to each other.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: August 6, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Seokwoo Jeon, Youngsuk Shim, Donghwi Cho, Jade Nadine Ang
  • METHOD AND DEVICE WITH FEDERATED LEARNING OF NEURAL NETWORK WEIGHTS
    Publication number: 20240256895
    Abstract: A method and device with federated learning of neural network models are disclosed. A method includes: receiving weights of respective clients, wherein each weight has a respectively corresponding precision that is initially an inherent precision; using a dequantizer to change the weights such that the precisions thereof are changed from the inherent precisions to a same reference precision; determining masks respectively corresponding to the weights based on the inherent precisions; based on the masks, determining an integrated weight by merging the weights having the reference precision; and quantizing the integrated weight to generate quantized weights having the inherent precisions, respectively, and transmitting the quantized weights to the clients.
    Type: Application
    Filed: June 28, 2023
    Publication date: August 1, 2024
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea Advanced Institute of Science and Technology
    Inventors: Jonghoon YOON, Geon PARK, Jaehong YOON, Sung Ju HWANG, Wonyong JEONG
  • Stretchable transparency-adjusting film having an orientated heterogeneous interface, method for manufacturing the same and smart window having stretchable transparency-adjusting film
    Patent number: 12050314
    Abstract: A stretchable transparency-adjusting film includes an inner elastic part having a three-dimensional network shape and including a first elastomer, an inorganic thin film surrounding the inner elastic part, and an outer elastic part surrounding the inorganic thin film and including a second elastomer. A scattering unit defined by the inner elastic part, the inorganic thin film and the outer elastic part in a cross-section is orientated in an inclined direction to a vertical direction and a horizontal direction.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: July 30, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Seokwoo Jeon, Donghwi Cho, Sanghyeon Nam, Youngsuk Shim
  • TIME AVERAGED SIGNAL REDUCTION SCHEME USING FREQUENCY DITHERING FOR REAL-TIME STIMULATION ARTIFACT REMOVAL
    Publication number: 20240238595
    Abstract: The present disclosure relates to a technology for attenuating an average value of signals in a frequency dithering time domain, which may be used in a method of removing stimulus artifacts in real time. A dithering range of a stimulus frequency for generating a stimulus can be set, and the stimulus frequency can be controlled to be changed within the dithering range.
    Type: Application
    Filed: December 7, 2023
    Publication date: July 18, 2024
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Chul Kim, Geunchang Seong
  • Method and apparatus with neural network meta-training and class vector training
    Patent number: 12039449
    Abstract: A processor-implemented neural network method includes: extracting, by a feature extractor of a neural network, a plurality of training feature vectors corresponding to a plurality of training class data of each of a plurality of classes including a first class and a second class; determining, by a feature sample generator of the neural network, an additional feature vector of the second class based on a mean vector and a variation vector of the plurality of training feature vectors of each of the first class and the second class; and training a class vector of the second class included in a classifier of the neural network based on the additional feature vector and the plurality of training feature vectors of the second class.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: July 16, 2024
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Seong-Jin Park, Sung Ju Hwang, Seungju Han, Insoo Kim, Jiwon Baek, Jaejoon Han
  • Apparatus for polarization multiplexing and encoding in visible light communication system based on gold nanoparticle
    Patent number: 12040833
    Abstract: A method and an apparatus for polarization multiplexing and encoding in a visible light communication system based on a gold nanoparticle are provided. A method for encoding in a receiver using a polarizing characteristic in a visible light communication system based on a gold nanoparticle, which is performed by a computer device, includes splitting a receive signal into left circular polarization light and right circular polarization light by allowing the receive signal to pass through a linear polarizer and estimating a phase retardation difference, and detecting a transmit symbol by estimating the phase retardation difference.
    Type: Grant
    Filed: January 19, 2022
    Date of Patent: July 16, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Junil Choi, Geonho Han, Hyuckjin Choi, Beomsoo Ko
  • METHOD FOR SECURE NETWORK COMMUNICATION AND SYSTEM THEREOF
    Publication number: 20240236055
    Abstract: The present disclosure relates to a secure network communication method and a system therefor. The secure network communication method using a proxy connecting a client and a server according to an embodiment of the present disclosure may include: receiving, from the client, a session encryption key shared for generation of a secure channel between the client and the server; and when a packet encrypted with the session encryption key and transmitted from the client to the server is received, decrypting the encrypted packet with the session encryption key and analyzing the decrypted packet, or forwarding the encrypted packet to the server without change of an encrypted state.
    Type: Application
    Filed: November 7, 2023
    Publication date: July 11, 2024
    Applicants: SAMSUNG SDS CO., LTD., Korea Advanced Institute of Science and Technology
    Inventors: Kyu Young CHOI, Beumjin CHO, Yoonchan JHI, Hyojin YOON, Jihoon CHO, Kyoungsoo PARK, Junghan YOON, Duckwoo KIM, Seunghyun DO
  • SNUBBER CIRCUIT
    Publication number: 20240223073
    Abstract: Provided is a snubber circuit. The snubber circuit may include a first snubber diode connected to a first node connected to a DC-DC converter, a snubber capacitor connected between the first snubber diode and a second node connected to the DC-DC converter, a snubber voltage source connected to the first node, a snubber inductor connected to a third node between the first snubber diode and the snubber capacitor, and a second snubber diode connected between the snubber inductor and the snubber voltage source.
    Type: Application
    Filed: December 22, 2023
    Publication date: July 4, 2024
    Applicants: SEMES CO., LTD., Korea Advanced Institute Of Science And Technology
    Inventors: Aixian Zhang, Junghwan Lee, Jaehyun Kim, Jiho Lee, Gyuhyeong Cho
  • Method for GPS spoofing detection with GPS receivers leveraging inaccuracies of GPS spoofing devices and apparatus therefore
    Patent number: 12025713
    Abstract: A method for detecting a GPS spoofing attack using a difference between output values of a GPS receiver, which is generated due to inaccuracy of a GPS spoofer, and an apparatus therefor are provided. The method includes receiving a GPS signal; and determining the received GPS signal as a GPS satellite signal or a GPS spoofing signal using a learning model learned based on a difference between output values of a GPS receiver. The method further includes labeling and collecting dispersion degree data including a position, a speed, and a time output from the GPS receiver with whether the GPS signal is the GPS satellite signal or the GPS spoofing signal and modeling the learning model using the collected data.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: July 2, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Yongdae Kim, Juhwan Noh, Jaehoon Kim, Dohyun Kim, Song Min Kim