Abstract: An optical module package using a bidirectional polished silica optical waveguide is disclosed. An optical module package may include a planar optical waveguide that connects at least one aperture of each of the optical components and including inclined surfaces at both ends thereof to allow light, which exits from at least one aperture of any one optical component of the optical components to be subjected to optical coupling in a vertical direction through total reflection on an inclined surface corresponding to the at least one aperture of the any one optical component to cause the light to travel in a horizontal direction, and allows the light to be subjected to optical coupling to at least one aperture of a remaining optical component in the vertical direction through total reflection on the inclined surface corresponding to the at least one aperture of the remaining optical component.
Type:
Application
Filed:
March 2, 2022
Publication date:
July 27, 2023
Applicant:
Korea Advanced Institute of Science and Technology
Abstract: In a method of manufacturing a highly stretchable three-dimensional (3D) percolated conductive nano-network structure, a 3D nano-structured porous elastomer including patterns distributed in a periodic network is formed. A surface of the 3D nano-structured porous elastomer is changed to a hydrophilic state. A polymeric material is conformally adhered on the surface of the 3D nano-structured porous elastomer. The surface of the 3D nano-structured porous elastomer is wet by infiltrating a conductive solution in which a conductive material is dispersed. A 3D percolated conductive nano-network coupled with the 3D nano-structured porous elastomer is formed by evaporating a solvent of the conductive solution and removing the polymeric material.
Type:
Grant
Filed:
May 17, 2021
Date of Patent:
July 25, 2023
Assignee:
Korea Advanced Institute of Science and Technology
Abstract: According to the present specification, a method for inspecting a high-speed network packet payload by a terminal includes: a step of receiving L7 (Layer 7) policy related to containers from a user; a step of extracting string patterns to be inspected for each of the containers on the basis of the L7 policy through a pattern compiler; a step of creating a deterministic finite automaton (DFA) on the basis of the extracted string patterns through the pattern complier; and a step of converting a state transition table of the deterministic finite automaton into a match-action table through the pattern compiler and storing the match-action table in an eBPF (extended Berkeley Packet Filter) map for a payload inspection engine.
Type:
Application
Filed:
July 8, 2022
Publication date:
July 20, 2023
Applicants:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, S2W INC.
Inventors:
Seung Won SHIN, Myoung Sung YOU, Sang Duk SUH, Chang Hoon YOON, Yeon Keun KIM
Abstract: A switching regulator, system-on-chip including the switching regulator, and operating method of the switching regulator are provided. The switching regulator comprises a first inductor having a first end connected to a first node and a second end connected to an output terminal, a second inductor having a first end connected to a second node and a second end connected to the output terminal, a flying capacitor having a first end connected to the first node and a second end connected to the second node, and control circuitry configured to at each of first through fourth times control the first switch, the second switch, the third switch, the fourth switch, the fifth switch, the sixth switch, the seventh switch, and the eighth switch to cause the flying capacitor to store a voltage corresponding to a difference between currents flowing in the first inductor and the second inductor.
Type:
Application
Filed:
December 13, 2022
Publication date:
July 20, 2023
Applicants:
Samsung Electronics Co., Ltd., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Jeong Hyun CHO, Hyun Sik KIM, Hong Hyun BAE
Abstract: A dynamic routing method and apparatus for an Overhead Hoist Transport (OHT) system are disclosed. The present disclosure in some embodiments provides a dynamic routing method for an OHT system, including generating a Q table of records of at least one Q value which is a time for a vehicle to move through an edge between two adjacent nodes to a node other than the two adjacent nodes, measuring a transit time of the vehicle when assigned a destination node and passing a transit edge between a current node and next node, extracting target edges to be updated according to the transit time from a plurality of edges, and differentially updating Q values for the target edges according to distances to the transit edge partially based on the transit time, the Q values for the target edges being time values for the vehicle to move through the target edges to the destination node.
Type:
Grant
Filed:
April 27, 2021
Date of Patent:
July 18, 2023
Assignees:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, DAIM Research Co., Ltd.
Inventors:
Young Jae Jang, Illhoe Hwang, Sangpyo Hong
Abstract: Cooperative resource allocation method and apparatus for downlink simultaneous wireless information and power transfer are proposed. A cooperative resource allocation method for downlink simultaneous wireless information and power transfer network, which is implemented through a central processor, according to one example of embodiments, may be configured to include allocating subcarrier for wireless information transfer and power transfer; and allocating power for wireless information transfer with the allocated subcarrier and divided transfer power.
Type:
Grant
Filed:
May 26, 2021
Date of Patent:
July 18, 2023
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: Disclosed decoding method of the intra prediction mode comprises the steps of: determining whether an intra prediction mode of a present prediction unit is the same as a first candidate intra prediction mode or as a second candidate intra prediction mode on the basis of 1-bit information; and determining, among said first candidate intra prediction mode and said second candidate intra prediction mode, which candidate intra prediction mode is the same as the intra prediction mode of said present prediction unit on the basis of additional 1-bit information, if the intra prediction mode of the present prediction unit is the same as at least either the first candidate intra prediction mode or the second candidate intra prediction mode, and decoding the intra prediction mode of the present prediction unit.
Type:
Grant
Filed:
December 2, 2021
Date of Patent:
July 18, 2023
Assignees:
Electronics and Telecommunications Research Institute, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Jong Ho Kim, Hui Yong Kim, Se Yoon Jeong, Sung Chang Lim, Ha Hyun Lee, Jin Ho Lee, Suk Hee Cho, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn, Mun Churl Kim, Bum Shik Lee
Abstract: Multiplexed fluorescent imaging which is essential for finding out how various biomolecules are spatially distributed in cells or tissues is disclosed. The present disclosure may obtain 10 or more different biomolecule images with one labeling and imaging by newly designing selection of fluorophores, detection spectral ranges, and signal unmixing algorithm. The present disclosure is a blind unmixing technology for unmixing an image without an emission spectrum of fluorophore, and in this technology, 4 pairs of fluorophores are used, and each pair consists of two fluorophores in which emission spectra are overlapped. Each pair of fluorophores is strongly excited by only one excitation laser. Two images with different detection spectral ranges are obtained for each pair, and two images are unmixed via mutual information minimization without fluorophore emission spectrum information. Two images also may be unmixed via Gram-Schmidt orthogonalization and fluorescence measurement based unmixing.
Type:
Grant
Filed:
December 23, 2020
Date of Patent:
July 18, 2023
Assignee:
Korea Advanced Institute of Science and Technology
Inventors:
Jae-Byum Chang, Young-Gyu Yoon, Junyoung Seo, Yeonbo Sim
Abstract: A computational storage supporting graph machine learning acceleration includes a solid state drive (SSD) configured to store a graph data set; and a field-programmable gate array (FPGA) configured to download, to a memory, a graph machine learning model programmed in a form of a data flow graph by a host, wherein a hardware logic built in the FPGA performs access to the SSD through a peripheral component interconnect-express (PCIe) switch.
Type:
Application
Filed:
January 9, 2023
Publication date:
July 13, 2023
Applicant:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: The present disclosure provides a polishing pad and a method of manufacturing a semiconductor device using the same. The method includes disposing a target layer on a semiconductor substrate and performing a chemical mechanical polishing process on the target layer using a polishing pad including a plurality of polishing protrusions facing the target layer. Each of the polishing protrusions includes a protruding portion and a surface layer at least partially covering the protruding portion, wherein the protruding portion is more elastic than the surface layer, and wherein the surface layer is harder than the protruding portion.
Type:
Application
Filed:
June 7, 2022
Publication date:
July 13, 2023
Applicant:
Korea Advanced Institute of Science and Technology
Inventors:
Sanha KIM, Ji Su KIM, Yeong Bong PARK, Hyun Jun RYU, Myung-Ki HONG, Byoung Ho KWON, Dong Geun KIM, Ji-Hun JEONG, Sukkyung KANG
Abstract: A virtual reality (VR) sickness assessment method according to an embodiment includes receiving virtual reality content, and quantitatively evaluating virtual reality sickness for the received virtual reality content using a neural network based on a pre-trained neural mismatch model. The evaluating of the virtual reality sickness may include predicting an expected visual signal for an input visual signal of the virtual reality content based on the neural mismatch model, extracting a neural mismatch feature between the predicted expected visual signal based on the neural mismatch model and an input visual signal for a corresponding frame of the virtual reality content corresponding to the expected visual signal, and evaluating a level of the virtual reality sickness based on the neural mismatch model and the extracted neural mismatch feature.
Type:
Grant
Filed:
December 2, 2019
Date of Patent:
July 11, 2023
Assignee:
Korea Advanced Institute of Science and Technology
Abstract: A radio frequency (RF) weak magnetic field detection sensor includes a ferromagnetic core, a pickup coil disposed to surround the ferromagnetic core, a substrate that includes an opening, a core pad connected to the ferromagnetic core and a coil pad connected to the pickup coil, and an insulating tube interposed between the ferromagnetic core and the pickup coil. The insulating tube includes a bobbin around which the pickup coil is wound, and a core hole formed to pass through the bobbin and configured to accommodate the ferromagnetic core.
Type:
Grant
Filed:
March 2, 2021
Date of Patent:
July 11, 2023
Assignees:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Jang Yeol Kim, In Kui Cho, Hyunjoon Lee, Sang-Won Kim, Seong-Min Kim, Jung Ick Moon, Woo Cheon Park, Je Hoon Yun, Jaewoo Lee, Ho Jin Lee, Dong Won Jang, Kibeom Kim, Seungyoung Ahn
Abstract: Disclosed are an image processing method and device using a line-wise operation. The image processing device, according to one embodiment, comprises: a receiver for receiving an image; a first convolution operator for generating a feature map by performing a convolution operation on the basis of the image; and a compressor for compressing the feature map into units of at least one line; and a decompressor for reconstructing the feature map compressed into units of lines.
Type:
Application
Filed:
December 26, 2022
Publication date:
July 6, 2023
Applicant:
Korea Advanced Institute of Science and Technology
Inventors:
Mun Churl KIM, Yong Woo KIM, Jae Seok CHOI
Abstract: Proposed are an optimal operation method of a high-frequency dithering technique for compensating for interference noise in an analog optical transmission-based mobile fronthaul network, and a transmitter using same. An interference noise compensation method using high-frequency phase dithering performed in an analog optical transmission-based mobile fronthaul network may include the steps in which: a frequency-multiplexed wireless signal is converted in an optical transmitter to an intensity-modulated optical signal; and the phase of the optical signal intensity-modulated in the optical transmitter is dithered with an Orthogonal Frequency-Division Multiplexing (OFDM) signal.
Type:
Application
Filed:
March 3, 2020
Publication date:
July 6, 2023
Applicant:
Korea Advanced Institute of Science and Technology
Inventors:
Yun Chur CHUNG, Byunggon KIM, Sunghyun BAE, Minsik KIM
Abstract: Provided is a triboelectricity-based energy harvesting material including a first carbon composite layer, a second carbon composite layer, a first charge layer and a second charge layer applied onto the first carbon composite layer and the second carbon composite layer, respectively, and a spacer that is provided between the first charge layer and the second charge layer and maintains a predetermined interval between the first charge layer and the second charge layer, wherein the spacer is provided only in a partial region of the first charge layer and the second charge layer, and accordingly, the first charge layer and the second charge layer come into contact with each other according to deformation of the material in a region in which the spacer is not provided so as to generate triboelectricity.
Type:
Grant
Filed:
January 20, 2022
Date of Patent:
July 4, 2023
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Seong Su Kim, Hyunsoo Hong, Muhammad Salmam Sarfraz, Wonvin Kim
Abstract: An exemplary embodiment relates to improving a driving speed of a shape-memory-alloy applied as an artificial muscle, and to improving heat conduction and thermal convection by growing copper nanowires on the surface of the shape-memory-alloy to improve a natural cooling rate and a driving speed of the shape-memory-alloy.
Type:
Grant
Filed:
May 17, 2022
Date of Patent:
July 4, 2023
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: A phase shifting device may include a plurality of metal layers and a plurality of first dielectric layers, a metal layer of the plurality of metal layers and a first dielectric layer of the plurality of first dielectric layers being alternately stacked in a first direction, and a second dielectric layer disposed on a side surface of the stacked structure in a second direction, wherein the first dielectric layer includes a first material having a first dielectric constant and the second dielectric layer includes a second material having a second dielectric constant, and wherein the second dielectric constant is greater than the first dielectric constant.
Type:
Grant
Filed:
November 4, 2021
Date of Patent:
July 4, 2023
Assignees:
SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Jeongyub Lee, Reehyang Kim, Jonghwa Shin, Kiyeon Yang, Yongsung Kim, Jaekwan Kim, Changseung Lee, Narae Han
Abstract: The present invention provides a method of manufacturing an animal model of non-alcoholic liver disease by using correlation among metabolic dysregulations through AKT regulation by Hippo signaling, and an animal model prepared by the method above, and a screening method of a therapeutic agent by using the animal model.
Type:
Grant
Filed:
June 18, 2019
Date of Patent:
July 4, 2023
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY