Abstract: A viewing angle expansion plate, which is a multi-pinhole mask, includes a plurality of cell areas; and a plurality of pinholes formed in the plurality of cell areas, wherein each cell area from among the plurality of cell areas corresponds to a respective pixel from among a plurality of pixels in a flat panel display. The flat panel display includes a light source configured to emit parallel light; a flat panel, on which the parallel light is incident, configured to provide a three-dimensional image; and the viewing angle expansion plate.
Type:
Grant
Filed:
September 23, 2019
Date of Patent:
February 27, 2024
Assignees:
SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Wontaek Seo, Yongkeun Park, Hoon Song, Jungkwuen An, Jongchan Park
Abstract: Various embodiments relate to a color palette for capturing a person's image for determination of a facial skin color, and a method and an apparatus using same. Various embodiments may provide a color palette, and a method and an apparatus using same, the color palette comprising: a central area which is provided to define a skin region in a facial image, and is empty or transparent; and a plurality of color areas which are provided to define a plurality of reference regions for use in determining a skin color of the skin region in the facial image, and arranged to surround the central area and disposed according to a rule determined on the basis of at least one color characteristic.
Type:
Grant
Filed:
September 26, 2019
Date of Patent:
February 27, 2024
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: An amplification apparatus includes an amplifier having an inverting terminal, and a non-inverting terminal connected to a reset voltage node, a first capacitor connected to the inverting terminal, an input voltage being applied to the first capacitor, a second capacitor connected to the inverting terminal and an output terminal of the amplifier, and a duty-cycled resistor, connected in parallel to the second capacitor, including a first resistor. The duty-cycled resistor is configured to connect the first resistor and the inverting terminal and to disconnect the first resistor and the reset voltage node during a first time interval included in a period to complete an on-and-off cycle of the duty-cycled resistor, and disconnect the first resistor and the inverting terminal and to connect the first resistor and the reset voltage node during a second time interval included in the period.
Type:
Grant
Filed:
April 13, 2021
Date of Patent:
February 27, 2024
Assignees:
Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
Inventors:
Wonseok Lee, Kent Edrian Lozada, Seung Tak Ryu, Sang Joon Kim
Abstract: Disclosed herein are an apparatus and method for training a deep neural network. An apparatus for training a deep neural network including N layers, each having multiple neurons, includes an error propagation processing unit configured to, when an error occurs in an N-th layer in response to initiation of training of the deep neural network, determine an error propagation value for an arbitrary layer based on the error occurring in the N-th layer and directly propagate the error propagation value to the arbitrary layer, a weight gradient update processing unit configured to update a forward weight for the arbitrary layer based on a feed-forward value input to the arbitrary layer and the error propagation value in response to the error propagation value, and a feed-forward processing unit configured to, when update of the forward weight is completed, perform a feed-forward operation in the arbitrary layer using the forward weight.
Type:
Grant
Filed:
August 10, 2020
Date of Patent:
February 27, 2024
Assignee:
Korea Advanced Institute of Science and Technology
Abstract: A covalent organic framework and a method of preparing the same are disclosed. The covalent organic framework is used to produce an electrode material and includes a repeating unit represented by the following chemical formula: In the formula, A1, A2, and A3 are the same or different, and are independently a monocyclic or polycyclic aromatic ring, and R1 and R2 are the same or different, and are independently selected from hydrogen, a functional group containing at least one nitrogen, phosphorus, or sulfur, an unsubstituted or substituted C1-C6 alkyl group, an unsubstituted or substituted C2-C6 alkenyl group, an unsubstituted or substituted C2-C6 alkynyl group, and an unsubstituted or substituted C1-C6 alkoxy group.
Type:
Grant
Filed:
December 10, 2021
Date of Patent:
February 20, 2024
Assignee:
Korea Advanced Institute of Science and Technology
Abstract: A gas sensor includes a first electrode disposed on a substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, and a sensitive member disposed on the substrate. The sensitive member contacts first and second electrodes and has a porous structure from a three-dimensional (3D) arrangement of shells including a gas-sensitive material. A thickness of the sensitive member is 5 ?m to 10 ?m, and a thickness of the shells is 10 nm to 40 nm.
Type:
Grant
Filed:
August 16, 2021
Date of Patent:
February 20, 2024
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: A data generating method includes: an atomic model generating step of generating one or more three-dimensional atomic models corresponding to a nanomaterial to be measured; a three-dimensional data generating step of generating three-dimensional atomic level structure volume data corresponding to the nanomaterial to be measured based on the one or more three-dimensional atomic model; a tilt series generating step of generating a tilt series by simulating three-dimensional tomography for a plurality of different angles in a predetermined angle range for at least some of the three-dimensional atomic level structure volume data; and a three-dimensional atomic structure tomogram volume data generating step of generating a three-dimensional atomic structure tomogram volume data set by performing three-dimensional reconstruction on at least some of the three-dimensional atomic level structure volume data based on the tilt series.
Type:
Grant
Filed:
December 23, 2020
Date of Patent:
February 20, 2024
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: An electronic system for transmitting and receiving internal data through an optical channel. The electronic system may include a light emitter configured to generate a first optical signal, a first device configured to receive the first optical signal and including a transmitter configured to output a second optical signal representing a transmission value based on the first optical signal, a second device including a first receiver configured to receive the second optical signal from the first device and output a third optical signal by adjusting a light intensity of the second optical signal, and configured to read the transmission value based on the light intensity of the second optical signal, and a third device including a second receiver configured to receive the third optical signal from the second device, and configured to read the transmission value based on a light intensity of the third optical signal.
Type:
Application
Filed:
May 22, 2023
Publication date:
February 15, 2024
Applicants:
SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Hanyeoreum Bae, Myoungsoo Jung, Jie Zhang
Abstract: Provided is a method of framing a three dimensional (3D) target object for generation of a virtual camera layout. The method may include analyzing a reference video image to extract a framing rule for at least one reference object in the reference video image, generating a framing rule for at least one 3D target object using the framing rule for the at least one reference object in the reference video image, and using the framing rule for the at least one 3D target object for generation of a virtual camera layout.
Type:
Grant
Filed:
May 13, 2022
Date of Patent:
February 13, 2024
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Junyong Noh, Jung Eun Yoo, Kwanggyoon Seo, Sanghun Park, Jaedong Kim, Dawon Lee
Abstract: The present disclosure relates to a mutant microorganism in which a glycerol catabolic pathway and a 1,3-PDO biosynthetic pathway are introduced into a microorganism incapable of using glycerol as a carbon source, and a method of producing 1,3-PDO using the same. According to the present disclosure, it is possible to produce 1,3-PDO while growing a mutant microorganism having 1,3-PDO production ability by using the inexpensive raw material glycerol as a single carbon source. Thus, the present disclosure is useful for the economical production of 1,3-PDO.
Type:
Grant
Filed:
January 15, 2019
Date of Patent:
February 13, 2024
Assignees:
HANWHA SOLUTIONS CORPORATION, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Sang Yup Lee, Jae Sung Cho, Je Woong Kim, Yoo Sung Ko, Cindy Pricilia Surya Prabowo, Taehee Han, Euiduk Kim, Jae Won Choi, Changhee Cho, Jun Kyu Lee
Abstract: An ultrafast camera system includes a sensor head that injects an optical pulse train input from a pulsed laser onto a surface of a measurement target and outputs an optical signal reflected from the surface, and a timing detector that receives the optical signal whose time-of-flight is changed after passing through the sensor head and outputs an electrical signal corresponding to a timing error between the optical signal and a reference signal. Another ultrafast camera system includes a wavelength dispersion device to disperse an optical pulse train of a pulsed laser into a wavelength spectrum, a lens that vertically injects continuous wavelength signals dispersed into the wavelength spectrum onto a measurement line, and a timing detector that receives an optical signal including the continuous wavelength signals reflected from the measurement line, and outputs a timing error between the reference signal and the continuous wavelength signals as a signal intensity.
Type:
Grant
Filed:
May 28, 2021
Date of Patent:
February 13, 2024
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Jungwon Kim, Yongjin Na, Hyunsoo Kwak, Changmin Ahn
Abstract: An electronic device which includes processing circuitry configured to acquire training data corresponding to multiple antennas, the training data having a label and features, the label including a first channel value for a first time slot, and the features including a plurality of second channel values for a plurality of time slots before the first time slot, train a channel prediction model based on the training data to obtain a trained channel prediction model, and obtain a channel prediction value for a prediction time based on the trained channel prediction model.
Type:
Application
Filed:
May 11, 2023
Publication date:
February 8, 2024
Applicants:
Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
Abstract: An image processing device according to one embodiment estimates optical flow information, pixel by pixel, on the basis of a reference image and input images of consecutive frames, and estimates a term corresponding to temporal consistency between the frames of the input images. The image processing device determines a mesh on the basis of the term corresponding to temporal consistency and the optical flow information, and transforms the reference image on the basis of the mesh. The image processing device preforms image blending on the basis of the input image, the transformed reference image, and mask data.
Type:
Grant
Filed:
February 21, 2019
Date of Patent:
February 6, 2024
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Junyong Noh, Hanui Lee, Bumki Kim, Gukho Kim, Julie Alfonsine E. Lelong, Mohammad Reza Karimi Dastjerdi, Allen Kim, Jiwon Lee
Abstract: Proposed are an ultra-low jitter low-power phase-locked loop using a power-gating injection-locked frequency multiplier-based phase detector (PG-ILFM PD) and an operating method thereof. The proposed PG-ILFM PD includes a replica voltage controlled oscillator (R-VCO) configured to cut off the power supply of the R-VCO repeatedly based on a reference signal SREF and a fundamental sampling phase detector (FSPD) configured to receive an output signal SILFM of the R-VCO as a reference signal for sampling and detect a phase error of a main voltage controlled oscillator (M-VCO).
Type:
Grant
Filed:
April 13, 2022
Date of Patent:
February 6, 2024
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Jaehyouk Choi, Suneui Park, Seyeon Yoo, Seojin Choi, Jooeun Bang
Abstract: The present invention relates to a device for converting a frequency of an electromagnetic wave and, more specifically, to a device for converting an original frequency of an electromagnetic wave into a frequency corresponding to a resonator mode by using a time-varying Fabry-Perot resonator including a time-varying reflective surface of which reflectivity changes with time.
Type:
Application
Filed:
December 7, 2021
Publication date:
February 1, 2024
Applicants:
Korea Advanced Institute of Science And Technology, Center for Advanced Meta-Materials
Inventors:
Bumki MIN, Kang Hee LEE, Seojoo LEE, Soojeong BAEK
Abstract: A SOI wafer is formed by forming a hole array on a surface of a wafer including a semiconductor material, forming a membrane-cavity structure by annealing process on the wafer, forming a buried oxide layer on an inside of the cavity and an outer oxide layer on an outside of the membrane, and forming a device layer by removing the outer oxide layer.
Type:
Application
Filed:
July 17, 2023
Publication date:
February 1, 2024
Applicant:
Korea Advanced Institute of Science and Technology
Abstract: The present disclosure relates to a method for providing information for determining lung tumor through inhalation of a fluorescent contrast agent, more particularly to a method of inhaling a small amount of Indocyanine green. The present disclosure does not have the problem of the existing intravenous injection that the administered fluorescent contrast agent is distributed throughout the body. In addition, when comparing the cancer detection efficiency of inhalation administration and intravenous injection, the inhaled fluorescent contrast agent exhibits remarkably higher cancer detection effect than the intravenously injected fluorescent contrast agent.
Type:
Grant
Filed:
September 5, 2019
Date of Patent:
January 30, 2024
Assignees:
Korea University Research and Business Foundation, Korea Advanced Institute Of Science And Technology
Inventors:
Hyun Koo Kim, Yuhua Quan, Byeong-Hyeon Choi, Ji-Yun Rho, Ji Ho Park, Ji Young Lim, Chan Hee Oh, Daeho Jung
Abstract: A method of assisting object registration in a smart home system including a plurality of objects is disclosed. The disclosed method may include allowing a user to select an object from among a plurality of objects, capturing a plurality of pointing gestures by allowing the user to perform the plurality of pointing gestures at the selected object, configuring a pointing ray using each of the plurality of captured pointing gestures, estimating a position of a nearest point extending from the plurality of pointing rays, and registering the estimated position of the nearest point as a position of the selected object.
Type:
Grant
Filed:
June 24, 2022
Date of Patent:
January 30, 2024
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Junyong Noh, Hyunggoog Seo, Jaedong Kim, Kwanggyoon Seo, Bumki Kim
Abstract: The present invention relates to an injector, a combustor comprising same, and a gas turbine comprising same. The injector comprises: an injector body; and a slit portion formed through the injector body in a reference direction, wherein the slit portion comprises: a first slit portion having a shape extending along the circumferential direction of a virtual reference circle having a virtual reference axis extending in the reference direction as a center thereof; and a second slit portion having a shape extending in the radial direction of the reference circle.
Type:
Application
Filed:
August 30, 2022
Publication date:
January 25, 2024
Applicant:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY