Patents Assigned to POSTECH Academy-Industry Foundation
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Publication number: 20230385621Abstract: Disclosed are an apparatus for implementing hardware-based dropout for an artificial neural network using a selector element and a neural network circuit system using the same, and an apparatus for implementing hardware-based dropout for an artificial neural network using a selector element according to an exemplary embodiment of the present disclosure may include: a switch unit disposed on the bit line of a hardware-based artificial neural network, and provided to allow a target current which flows to the bit line to selectively flow to a predetermined neuron or ground node constituting the artificial neural network; and a driving unit which includes a selector element turned on or off according to a size relationship of an applied driving voltage and a threshold voltage, and controlling the switch unit.Type: ApplicationFiled: March 7, 2023Publication date: November 30, 2023Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Hyunsang HWANG, Dongmin KIM
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Patent number: 11814556Abstract: A coacervate including a catechol-substituted anionic polymer; an adhesive including same; and a method for producing the coacervate are described. More specifically, a coacervate formed by mixing a catechol derivative of a mussel adhesive protein and a catechol-substituted anionic polymer; an adhesive including the coacervate; and a method for producing a coacervate are described. The method includes a step of obtaining a catechol-substituted anionic polymer through catechol substitution of an anionic polymer, and a step of mixing the catechol-substituted anionic polymer and a catechol derivative of a mussel adhesive protein.Type: GrantFiled: July 10, 2018Date of Patent: November 14, 2023Assignees: POSCO CO., LTD, POSTECH ACADEMY-INDUSTRY FOUNDATION, NATURE GLUETECH CO., LTD.Inventors: Hyung Joon Cha, Hyo Jeong Kim, Bong-Hyuk Choi
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Patent number: 11795973Abstract: A deep learning-based cooling system temperature prediction apparatus has an artificial neural network modeled by connecting a plurality of artificial neural network submodels each including an input layer, a hidden layer, and an output layer is used. A pump flow speed, a cooling water flow rate, a battery inlet cooling water temperature, a motor inlet cooling water temperature, a radiator outlet cooling water temperature, a battery temperature, and a motor temperature are predicted by inputting at least one of a predetermined control variable, an environment variable, or a time variable to the plurality of artificial neural network submodels in accordance with a physical causality. A number of the plurality of artificial neural network submodels and the control variables or environment variables that are sequentially input to each submodel depend on divisional control and integral control of the cooling system.Type: GrantFiled: March 20, 2020Date of Patent: October 24, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Jae Woong Kim, Sang Shin Lee, So La Chung, Man Ju Oh, Young Jin Kim, Jong Hyun Park
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Patent number: 11785370Abstract: Proposed is a vibration sensor including: a substrate; a first electrode positioned on the substrate; a support positioned on the first electrode and including a cylindrical hollow hole; and a diaphragm including a thin film positioned on the support and a second electrode positioned on the thin film. According to the present disclosure, it is possible to manufacture a skin-attachable vibration sensor that is attached to a user's neck to detect vibration acceleration in user's neck skin, thus exhibiting a uniform and high sensitivity to a user's voice over the frequency range of the human voice. In addition, the sensor sensitively detects a user's voice through neck skin vibrations rather than through air, thus being free from the influence of external noise or wind, and can recognize the user's voice even in a situation where a user's mouth is covered.Type: GrantFiled: March 8, 2019Date of Patent: October 10, 2023Assignees: CENTER FOR ADVANCED SOFT ELECTRONICS, POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Kilwon Cho, Siyoung Lee, Yoonyoung Chung
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Patent number: 11748612Abstract: Provided is a neural processing device including a noise classifier configured to perform a preprocessing on input data to determine a noise characteristic of the input data, a network selector configured to select one of a plurality of neural networks based on the noise characteristic, and an operator configured to perform inference on the input data based on selected weights corresponding to the selected neural network.Type: GrantFiled: April 11, 2019Date of Patent: September 5, 2023Assignee: POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Youngjoo Lee, Sunggu Lee, Minho Ha, Younghoon Byun
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Patent number: 11730375Abstract: A photoacoustic, noninvasive, and continuous blood glucose measurement device includes: a diode laser for irradiating a living body with a pulsed laser signal having a specific wavelength; and an ultrasound transducer for measuring a photoacoustic signal in a form of ultrasonic waves generated by a reaction of the living body with the pulsed laser signal.Type: GrantFiled: August 4, 2020Date of Patent: August 22, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Eung Hwan Kim, Seul Ki Jeon, Nam Woong Hur, Jin Woo Baik, Jin Young Kim, Da Yoon Kang, Chul Hong Kim
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Publication number: 20230254310Abstract: A user authentication method performed by an authentication management server constituting a block chain network with a target device may comprise receiving, from the target device, a transaction including authentication information of a user and a unique value of the target device; determining a token of the user stored in a smart contract based on the authentication information; and authenticating the user based on validity information of the token, ownership information of the token, and the transaction.Type: ApplicationFiled: January 3, 2023Publication date: August 10, 2023Applicant: POSTECH ACADEMY - INDUSTRY FOUNDATIONInventors: Chan Ik PARK, Jeong Hyeon MA
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Publication number: 20230223515Abstract: Porous carbon particles, and a positive electrode active material and a lithium secondary battery including the same. This may improve the energy density of the lithium secondary battery by applying a porous electrode containing micropores and mesopores and having a uniform size distribution and shape as a positive electrode material.Type: ApplicationFiled: March 16, 2023Publication date: July 13, 2023Applicants: LG ENERGY SOLUTION, LTD., POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Dongwook LEE, Changshin JO, Jinwoo LEE, Kwonnam SOHN, Doo Kyung YANG, Won-Gwang LIM
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Publication number: 20230204492Abstract: Disclosed herein is a transparent ultrasonic sensor-based ultrasonic optical composite imaging system including at least one light source and a transparent ultrasonic sensor coaxially aligned with light emitted from the light source and allowing the light emitted from the light source to be transmitted therethrough, wherein the transparent ultrasonic sensor is disposed between the light source and a subject.Type: ApplicationFiled: March 1, 2023Publication date: June 29, 2023Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Chulhong KIM, Hyung Ham KIM, Jeongwoo PARK, Byullee PARK, Moongyu HAN, Joongho AHN
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Publication number: 20230195803Abstract: The present disclosure relates to a GIS geographical information retrieval method using a dynamic k-nearest neighbor search algorithm in an obstacle environment, which has been devised to search for geographical information by using a dynamic k-nearest neighbor search algorithm in an obstacle environment. The GIS geographical information retrieval method using a dynamic k-nearest neighbor search algorithm in an obstacle environment has an effect in that it can optimize a search time by considering obstacles as a range of angles, not discrete objects, on the basis of a query point, using the shortest path characteristics at the same time, and assigning priority to neighbors based on the calculated range of angles.Type: ApplicationFiled: December 19, 2022Publication date: June 22, 2023Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Hee Kap AHN, Jae Hoon CHUNG, Hwi KIM, Tae Kang EOM, Seung Jun LEE
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Patent number: 11681899Abstract: A method of implementing a neural network in a neuromorphic apparatus having a memory and processing circuitry, where the method includes dividing, by the processing circuitry, the neural network into a plurality of sub-networks based on a size of a core of the memory to implement the neural network, initializing, by the processing circuitry, a hyper-parameter used in the sub-networks, and training, by the processing circuitry, the sub-networks by using the hyper-parameter.Type: GrantFiled: September 5, 2019Date of Patent: June 20, 2023Assignees: Samsong Electronics Co., Ltd., POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Sungho Kim, Yulhwa Kim, Hyungjun Kim, Jae-Joon Kim, Jinseok Kim
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Publication number: 20230186068Abstract: A weight confirmation method for analog synaptic devices of an artificial neural network includes: learning artificial neural network hardware based on artificial analog memory devices using an artificial neural network learning algorithm; after the learning of the artificial neural network hardware, reading a total weight of a pair of synaptic devices; comparing the total weight of the pair of synaptic devices with 0; applying weights to a positive synaptic device and a negative synaptic device of the pair of synaptic devices, respectively; and confirming the total weight of the pair of synaptic devices in accordance with the weight of the positive synaptic device and the weight of the negative synaptic device. A retention problem of analog synaptic devices is overcome and thus the artificial neural network may stably operate.Type: ApplicationFiled: April 12, 2022Publication date: June 15, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Ji-Sung Lee, Su-Jung Noh, Han-Saem Lee, Joon-Hyun Kwon, Hyun-Sang Hwang, Woo-Seok Choi
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Patent number: 11660312Abstract: The present invention relates to a Bifidobacterium bifidum inducing regulatory T cells (Treg), a polysaccharide derived from Bifidobacterium bifidum, and a probiotic strain producing a polysaccharide and, more particularly, a polysaccharide containing ?-1-6-glucan as an effective ingredient, a probiotic strain producing ?-1-6-glucan, a food comprising the polysaccharide or strain as an effective ingredient for alleviation of immune disease or inflammatory disease, a therapeutic agent comprising the polysaccharide or strain as an effective ingredient for alleviation of immune disease or inflammatory disease, a method for preparing induced regulatory T cells (iTreg) by treatment with the polysaccharide or strain, and a cell therapy product for prevention or treatment of immune disease or inflammatory disease, comprising the induced regulatory T cells prepared by the method.Type: GrantFiled: June 14, 2018Date of Patent: May 30, 2023Assignees: INSTITUTE FOR BASIC SCIENCE, POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Sin-Hyeog Im, Ravi Verma, Changhon Lee
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Patent number: 11651224Abstract: A method formats a weight matrix in a current layer included in a neural network. The method includes calculating a row length for each row of the weight matrix based on a number of elements each of which has non-zero value; storing rearrangement information including result of sorting rows in the order of row lengths; performing a row transformation or the row transformation and a column transformation on the weight matrix using the rearrangement information; distributing rows of a transformed weight matrix to a plurality of processing elements (PEs); and generating formatted data including one or more group data each including values and column information being processed in each of the PEs.Type: GrantFiled: March 22, 2019Date of Patent: May 16, 2023Assignees: SK hynix Inc., POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Junki Park, Jae-Joon Kim
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Patent number: 11648524Abstract: The present invention relates to a method for controlling an ultrafast chemical reaction using a microfluidic reactor, and more specifically, the present invention relates to a method for controlling an ultrafast chemical reaction such as the Fries rearrangement reaction and the like by using a microfluidic reactor by the 3D metal printing technique.Type: GrantFiled: July 28, 2021Date of Patent: May 16, 2023Assignees: POSTECH ACADEMY-INDUSTRY FOUNDATION, VERSITECH LIMITEDInventors: Dong Pyo Kim, Ji Tae Kim, Hyune Jea Lee
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Patent number: 11637380Abstract: The present disclosure provides technology that proposes an ultra-high frequency band (mmWave band) vertical polarization antenna having a new structure applicable to a slim planar structure (e.g., a terminal).Type: GrantFiled: January 16, 2019Date of Patent: April 25, 2023Assignees: SK TELECOM CO., LTD., POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Hee Chang Seong, Joon Young Shin, Sung Yong Kang, Won Bin Hong, Jun Ho Park
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Patent number: 11631842Abstract: Porous carbon particles, and a positive electrode active material and a lithium secondary battery including the same. This may improve the energy density of the lithium secondary battery by applying a porous electrode containing micropores and mesopores and having a uniform size distribution and shape as a positive electrode material.Type: GrantFiled: May 16, 2022Date of Patent: April 18, 2023Assignees: LG ENERGY SOLUTION, LTD., POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Dongwook Lee, Changshin Jo, Jinwoo Lee, Kwonnam Sohn, Doo Kyung Yang, Won-Gwang Lim
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Publication number: 20230113417Abstract: The present invention relates to a method for mass-producing a target protein in a plant and, more specifically, to a method for producing high levels of protein in plant leaf cells, in which an expression cassette construct for high expression of a target gene and an expression cassette construct for high expression of p38 as a gene silencing suppressor, are prepared, a binary vector for transient expression in plant cells, having the construct together, is then prepared, and the binary vector is then subjected to agrobacterium-mediated transformation by using a single agrobacterium culture.Type: ApplicationFiled: February 1, 2021Publication date: April 13, 2023Applicants: POSTECH ACADEMY-INDUSTRY FOUNDATION, BioApplications Inc.Inventors: In Hwan HWANG, Hyang Ju KANG, Jun Ho LEE, Shijian SONG, Selvan Thangarasu MUTHAMIL
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Publication number: 20230096841Abstract: An upconversion nanoparticle includes at least one host selected from LiYF4, NaY, NaYF4, NaGdF4, and CaF3, at least one sensitizer selected from Sm3+, Nd3+, Dy3+, Ho3+, and Yb3+ doped in the at least one host, and at least one activator selected from Er3+, Ho3+, Tm3+, and Eu3+ doped in the at least one host. The upconversion nanoparticle is designed using a calculation from first principles to absorb light in the near-infrared wavelength range whose stability is ensured. Further, a hyaluronic acid-upconversion nanoparticle conjugate, in which the upconversion nanoparticle as described above is bonded to hyaluronic acid, is provided to be used in various internal sites with a hyaluronic acid receptor, particularly enables targeting, and increases an internal retention period and biocompatibility thereof.Type: ApplicationFiled: November 15, 2022Publication date: March 30, 2023Applicants: POSCO, POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Sei Kwang HAHN, Seulgi HAN, Hyun Woo LEE, Kyoo KIM
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Patent number: 11611766Abstract: A method and an apparatus for performing a Superposition Coded Modulation (SCM) scheme in a broadcasting or communication system including a controller are provided. The method includes controlling an SCM coefficient by the controller. The SCM coefficient is controlled according to a channel capacity of each layer of one or more layers in which information included in a signal is encoded.Type: GrantFiled: June 4, 2021Date of Patent: March 21, 2023Assignees: Samsung Electronics Co., Ltd., Postech Academy-Industry FoundationInventors: Seho Myung, Kyung-Joong Kim, Kyeong-Cheol Yang