Patents Assigned to Pusan National University Industry-University Cooperation Foundation
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Publication number: 20220368098Abstract: A measurement device includes: an optical gain unit for generating and amplifying light; a transmission optical band variation unit for selecting a specific optical frequency band from the light generated by the optical gain unit, and varying the selected specific optical frequency band to transmit light; a resonant optical frequency variation unit for performing a frequency variation so that multiple resonant optical frequency orders within the specific optical frequency band vary over a variation range narrower than intervals between the respective orders; resonance induction units forming an optical resonance unit which includes the optical gain unit, the transmission optical band variation unit, and the resonant optical frequency variation unit and causes selective oscillation of light having a specific resonant optical frequency within a specific transmission optical band; and a control signal unit for varying each of the transmission optical band variation unit and the resonant optical frequency variatiType: ApplicationFiled: October 29, 2020Publication date: November 17, 2022Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Changseok KIM, Hansol JANG, Jeongwon KIM, Dawoon JEONG
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Patent number: 11494375Abstract: Disclosed are a method and apparatus for analyzing a cause of a product defect. The apparatus includes a pre-processing unit configured to receive process data and perform pre-processing for analyzing a cause of a product defect, a search unit configured to search for a primary defect cause-conditional sentence to represent a primary defect cause through solution encoding and decoding and solution fitness calculation for a plurality of candidate solutions in order to search for a conditional sentence using the pre-processed process data and to output the primary defect cause-conditional sentence, and a post-processing unit configured to receive the primary defect cause-conditional sentence, remove a redundant conditional sentence, and output the final defect cause-conditional sentence.Type: GrantFiled: February 16, 2021Date of Patent: November 8, 2022Assignee: Pusan National University Industry-University Cooperation FoundationInventors: Kwang-Ryel Ryu, Taekwang Kim
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Publication number: 20220351399Abstract: Disclosed is an apparatus for generating a depth map using a monocular image. The apparatus includes: a deep convolution neural network (DCNN) optimized based on an encoder and decoder architecture. The encoder extracts one or more features from the monocular image according to the number of provided feature layers, and the decoder calculates displacements of mismatched pixels from the features extracted from different feature layers, and generates the depth map for the monocular image.Type: ApplicationFiled: June 4, 2021Publication date: November 3, 2022Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventor: Won Joo HWANG
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Patent number: 11482396Abstract: An ion source head may include a reaction chamber and a coil. The reaction chamber may be configured to provide an ionization space. The reaction chamber may be divided into a lower region, a central region and an upper region. The coil may be configured to be wound on an outer surface of the reaction chamber. The coil may include a first coil, a second coil and a third coil. The first coil may be spirally wound on an outer surface of the lower region of the reaction chamber. The second coil may be wound on the central region of the reaction chamber. The third coil may be spirally wound on an outer surface of the upper region of the reaction chamber. The second coil may be connected between the first coil and the third coil. The second coil may have a winding direction obliquely to a winding direction of the first and third coils.Type: GrantFiled: March 24, 2021Date of Patent: October 25, 2022Assignees: SK hynix Inc., Pusan National University Industry-University Cooperation FoundationInventors: Jong Jin Hwang, Ho Jun Lee
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Publication number: 20220326095Abstract: Disclosed is a temperature measurement system including: a light source unit for receiving excitation light; a target material on which the temperature-sensitive film is attached in order to emit the received excitation light into emission light; a phosphorescence detector for extracting the emission light into a phosphorescence decay signal; and a temperature extraction unit for extracting temperature of the target material using the phosphorescence decay signal.Type: ApplicationFiled: March 18, 2021Publication date: October 13, 2022Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Kyung Chun KIM, Chang Sik HA, TAO CAI, YONGZHU YAN
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Patent number: 11433368Abstract: A method for producing a catalyst for a fuel cell comprising: a) injecting carbon particles into a fluidized bed reactor; b) evacuating the fluidized bed reactor to form a base pressure; c) introducing a catalytic metal precursor together with a carrier gas into the fluidized bed reactor to contact the catalytic metal precursor with the carbon particles; d d) purging a purge gas into the fluidized bed reactor; e) introducing a reaction gas into the fluidized bed reactor to attach the catalytic metal precursor to the carbon particles; and f) purging a purge gas into the fluidized bed reactor, wherein, the catalytic metal is attached to the carbon particles in a form of nano-sized spot.Type: GrantFiled: November 11, 2019Date of Patent: September 6, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Woong Pyo Hong, Se Hun Kwon, Woo Jae Lee
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Patent number: 11438927Abstract: Disclosed is a device for resolving high-speed competition and distributing multi-channels in consideration of large-scale access based on LoRaWAN that enables efficient and stable communication through limited channel resources in a large-scale wireless transmission environment through a wireless communication wide area network. The device includes a terminal node competition unit for receiving a synchronization beacon and transmitting an access request signal to a base station, and performing an aptive contention window algorithm and enabling a terminal node to enter a transmitter according to a feedback packet (FBP) competition result when the FBP is received from the base station; and a terminal node transmitter for selecting a channel according to queuing rules and checking data transmission queue (DTQ) order, transmitting data when the DTQ order is a transmission turn, standing by FBP reception, and determining whether a contention resolution interval is ended to perform a DTQ reassignment process.Type: GrantFiled: February 10, 2021Date of Patent: September 6, 2022Assignee: Pusan National University Industry-University Cooperation FoundationInventors: Jongdeok Kim, Junhwan Huh, Changhong Lee, Jaemin Lee, Donghyun Kim
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Patent number: 11429785Abstract: Disclosed is a system for generating test documents for context-sensitive spelling error correction. The system includes: an input unit inputting an error-free document for generating an error document; an error target word segment test unit checking possibility of an error in a word segment by sequentially examining word segments of the entire sentences in the document input through the input unit and searching for a candidate word appearing at the corresponding position together with surrounding context; an error word candidate selection unit selecting error word candidates among candidate words found at the corresponding position by considering edit distances to a correct word and keyboard typographical errors; and an error word determination and presentation unit calculating probabilities of an error word candidate and its surrounding context and determining an error word of the highest priority as a final error word.Type: GrantFiled: May 21, 2021Date of Patent: August 30, 2022Assignee: Pusan National University Industry-University Cooperation FoundationInventors: Hyukchul Kwon, Jung-Hun Lee
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Patent number: 11431622Abstract: Disclosed is a device for increasing reliability of downlink traffic to mobility devices in an RPL environment that can increase reliability of downlink traffic by dual path generation and redundant packet retransmission for the mobile device in an environment where mobility exists. The moving device includes a directed acyclic graph (DAG) rank value acquisition unit for receiving a destination oriented directed acyclic graph information object (DIO) of parent devices to obtain a DAG rank value of each parent device; a parent device selection unit for selecting prefer parents and alternate parents based on a DAG rank of the parent device; and a destination advertisement object (DAO) signal processing unit for transmitting a DAO to a sync device when the prefer parents and the alternate parents are determined.Type: GrantFiled: February 17, 2021Date of Patent: August 30, 2022Assignee: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Sanghwa Chung, Jeongbae Park
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Publication number: 20220268742Abstract: A cover unit includes: a body to which an ultrasound generator adapted to generate ultrasound is coupled; first slits disposed at a lower portion of the body in the form of multiple rings having different radii and spaced apart from each other, the first slits having a first width; second slits depressed from an upper surface of the body to communicate with the first slits and having a second width smaller than the first width; third slits depressed from the upper surface of the body and each disposed between adjacent second slits, the third slits having a third width smaller than the first width; a bottom formed under the first slits; a first sidewall formed between adjacent first slits; and a second sidewall formed between the second slit and the third slit.Type: ApplicationFiled: May 11, 2022Publication date: August 25, 2022Applicants: CENTER FOR ADVANCED META-MATERIALS, PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Jun Hyuk KWAK, Kyung Jun SONG, Jong Jin PARK, Hak Joo LEE
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Publication number: 20220266300Abstract: Disclosed is an ultrasonic wave transmission structure which is provided on a path of ultrasonic waves to amplify incident ultrasonic waves. The ultrasonic wave transmission structure includes: multiple rings each provided with a body portion having a different radius from other body portions and spaced apart from another body portion adjacent thereto and a slit disposed between adjacent body portions; and a membrane disposed in the multiple rings, wherein the mass of the membrane is adjusted to vary a resonant frequency in multiple sub-membrane regions.Type: ApplicationFiled: May 11, 2022Publication date: August 25, 2022Applicants: CENTER FOR ADVANCED META-MATERIALS, PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Jong Jin PARK, Jun Hyuk KWAK, Kyung Jun SONG, Hak Joo LEE
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Publication number: 20220249096Abstract: A control method of an automatic compression circular anastomosis device, includes: correcting a zero point when an operation switch provided in a handle unit is turned on, by a control unit; controlling a motor to compress a tissue in a direction reaching a minimum distance at which a distance between a top surface of an anastomosis unit and a bottom surface of an anvil is minimized, by the control unit; measuring a real-time pressure applied to the tissue and a real-time distance between the top surface of the anastomosis unit and the bottom surface of the anvil in real-time, by the control unit; and controlling, when the real-time pressure and the real-time distance reach a set pressure and a set distance Dr stored in advance, the anastomosis unit to cut unnecessary parts of the tissue and anastomose the tissue with a plurality of staples, by the control unit.Type: ApplicationFiled: January 31, 2022Publication date: August 11, 2022Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Gyung Mo SON, Kwang Ryul BAEK, Sang Ho PARK, Jin Seok KIM
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Patent number: 11387535Abstract: A 3D stacked parallel-parallel power combiner includes first and second parallel power combining transformers and a first parallel power combiner. The first parallel power combining transformer includes first and second primary windings receiving first and second input signals, and a first secondary winding coupled to the first and second primary windings and providing a first output signal based on the first and second input signals. The second parallel power combining transformer includes third and fourth primary windings receiving third and fourth input signals, and a second secondary winding coupled to the third and fourth primary windings and providing a second output signal based on the third and fourth input signals. The first parallel power combiner is connected to output terminals of the first and second parallel power combining transformers and provides a third output signal by combining the first and second output signals.Type: GrantFiled: March 2, 2021Date of Patent: July 12, 2022Assignees: SAMSUNG ELECTRONICS CO., LTD., PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Ockgoo Lee, Hyunjin Ahn, Sanghoon Sim
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Publication number: 20220207692Abstract: A storage device of the inventive concept may include at least one processor. The at least one processor may be configured to acquire a surface scan image in an image tile format of a set size, bind a set number of image tiles in one segment, and store a plurality of segments as files, respectively, instead of storing the image tiles without modification.Type: ApplicationFiled: May 25, 2021Publication date: June 30, 2022Applicant: Pusan National University Industry-University Cooperation FoundationInventors: Sungyong AHN, Junseok YANG
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Publication number: 20220210057Abstract: Disclosed is a device for increasing reliability of downlink traffic to mobility devices in an RPL environment that can increase reliability of downlink traffic by dual path generation and redundant packet retransmission for the mobile device in an environment where mobility exists. The moving device includes a directed acyclic graph (DAG) rank value acquisition unit for receiving a destination oriented directed acyclic graph information object (DIO) of parent devices to obtain a DAG rank value of each parent device; a parent device selection unit for selecting prefer parents and alternate parents based on a DAG rank of the parent device; and a destination advertisement object (DAO) signal processing unit for transmitting a DAO to a sync device when the prefer parents and the alternate parents are determined.Type: ApplicationFiled: February 17, 2021Publication date: June 30, 2022Applicant: Pusan National University Industry-University Cooperation FoundationInventors: Sanghwa CHUNG, Jeongbae PARK
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Publication number: 20220210719Abstract: Disclosed are fast cell allocation scheduling device and method for a mobile node in a 6TiSCH network, in which when link quality of the mobile node is changed, a fixed path directed to a route node is allocated to establish a movement-route node fixed path minimizing a delay time between the mobile node and the route node.Type: ApplicationFiled: August 25, 2021Publication date: June 30, 2022Applicant: Pusan National University Industry-University Cooperation FoundationInventors: Sanghwa CHUNG, Minjae KIM
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Publication number: 20220206033Abstract: A method of manufacturing an optical fiber probe includes: stretching one end of the optical fiber in an axial direction thereof to form a first tapered portion in a first conical shape in which a diameter is gradually decreased toward a leading end of the optical fiber probe at a first ratio in an axial direction of the optical fiber probe to a point spaced a predetermined distance from a point fixed to a probe holder; and immersing and etching an end of the first tapered portion in an etching solution to form a second tapered portion formed in a second conical shape in which a diameter is gradually decreased at a second ratio greater than the first ratio in the axial direction from an end of the first tapered portion to form the leading end of the optical fiber probe.Type: ApplicationFiled: March 18, 2022Publication date: June 30, 2022Applicant: Pusan National University Industry-University Cooperation FoundationInventors: Byong-Jo YUN, Taeho KIM, Byeonggeon BAE, Taehwan AHN, Jaejun JEONG, Kyungdoo KIM
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Publication number: 20220199202Abstract: A method and apparatus for decompressing FASTQ data through character frequency-based sequence reordering implemented by a computer apparatus, the method including separating genome sequencing data into components of an identifier, a nucleotide sequence read, and prediction quality information; measuring character frequency for the entire data of each of the nucleotide sequence read and the prediction quality information; producing a score by applying the measured character frequency for the nucleotide sequence read and the prediction quality information; reordering the nucleotide sequence read and the prediction quality information based on a condition that is preset based on the score; and compressing at least one of information of the identifier, an identifier of the nucleotide sequence read, and an identifier of the prediction quality information through a compression program by including the reordered nucleotide sequence read and the reordered prediction quality information and generating compressed genoType: ApplicationFiled: November 28, 2021Publication date: June 23, 2022Applicant: Pusan National University Industry-University Cooperation FoundationInventors: Giltae SONG, Dohyeon LEE
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Publication number: 20220197244Abstract: Disclosed are a method and apparatus for analyzing a cause of a product defect. The apparatus includes a pre-processing unit configured to receive process data and perform pre-processing for analyzing a cause of a product defect, a search unit configured to search for a primary defect cause-conditional sentence to represent a primary defect cause through solution encoding and decoding and solution fitness calculation for a plurality of candidate solutions in order to search for a conditional sentence using the pre-processed process data and to output the primary defect cause-conditional sentence, and a post-processing unit configured to receive the primary defect cause-conditional sentence, remove a redundant conditional sentence, and output the final defect cause-conditional sentence.Type: ApplicationFiled: February 16, 2021Publication date: June 23, 2022Applicant: Pusan National University Industry-University Cooperation FoundationInventors: Kwang-Ryel Ryu, Taekwang Kim
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Patent number: 11368303Abstract: Disclosed are a system and method for calculating elliptic curve cryptography scalar multiplication using an FPGA (Field Programmable Gate Array), the system and method scheduling calculation, which is used in a Montgomery ladder Algorithm, and enabling efficient calculation through an improved modular arithmetic calculation method. The system for calculating elliptic curve cryptography (ECC) scalar multiplication using an FPGA includes: a scheduler implementing Montgomery ladder step calculation in a pipeline structure; a pipeline modular adder/subtractor implementing n-bit modular addition in a d-stage pipeline structure; and a modular multiplier implementing n-bit modular multiplication in a 10-stage pipeline structure up to maximum 256 bits.Type: GrantFiled: October 26, 2021Date of Patent: June 21, 2022Assignee: Pusan National University Industry-University Cooperation FoundationInventors: Howon Kim, Asep Muhamad Awaludin, Youngyeo Yun