Patents Assigned to GIST(Gwangju Institute of Science and Technology)
  • Publication number: 20220214596
    Abstract: Disclosed is an array antenna which is capable of shifting a phase of light. According to one aspect of the present exemplary embodiment, an optical phase shifting array antenna includes: a receiving unit configured to distribute input light to a plurality of antenna element waveguides; a phase shifting unit configured to shift a phase of light propagated to each antenna element waveguide by applying heat to each antenna element waveguide; an output unit including a plurality of antenna elements, and configured to output the light, which is propagated to each antenna element waveguide after a phase is varied in the phase shifting unit, to each antenna element; and a base part configured to seat the receiving unit, the phase shifting unit, and the output unit.
    Type: Application
    Filed: March 23, 2022
    Publication date: July 7, 2022
    Applicant: GIST(Gwangju Institute of Science and Technology)
    Inventor: Nan Ei YU
  • Publication number: 20220174083
    Abstract: Provided are a method and device for detecting malicious activity over an encrypted secure channel. The method includes (a) extracting at least one record from a plurality of packets each including a header and a payload and (b) determining whether the plurality of packets correspond to a malicious flow using feature information based on the at least one record.
    Type: Application
    Filed: November 19, 2021
    Publication date: June 2, 2022
    Applicant: GIST (Gwangju Institute of Science and Technology)
    Inventors: Hyuk LIM, Ji Won YANG
  • Publication number: 20220170922
    Abstract: The present invention relates to a multi-microorganism detection system, and more particularly, to a multi-microorganism detection system using a dielectrophoresis force. Provided is a rapid and accurate multi-microorganism detection system. Microorganisms are concentrated at a high throughput using DEP after synthesizing the microorganisms and fluorescent magnetic particles, and when a complex in which the fluorescent magnetic particles are bound to the microorganisms passes through a detection unit by moving only the microorganisms to the detection unit after separating the magnetic particles from the complex (i.e., the microorganisms to which the magnetic particles are bound) using a DEP force, a fluorescence signal of a specific wavelength band is generated according to the type of the fluorescent magnetic particle and the concentration of the microorganisms according to the type of microorganism is measured by measuring and analyzing the fluorescence signal.
    Type: Application
    Filed: August 16, 2021
    Publication date: June 2, 2022
    Applicant: GIST (Gwangju Institute of Science and Technology)
    Inventors: Sung YANG, Young Ran YUN, Taek Eon JEONG
  • Publication number: 20220155419
    Abstract: Provided is an optical phase array antenna including a coupling part configured to receive light from a laser generator, an optical distributor configured to distribute the light transmitted from the coupling part to a plurality of antenna element waveguides, a phase modulator configured to modulate a phase of the light transmitted through the plurality of antenna element waveguides, and a light outputter configured to output the light modulated by the phase modulator, the light outputter including the plurality of antenna element waveguides extending in one direction, wherein each of the plurality of antenna element waveguides includes a double grating antenna part in which a downward-curved portion curved downward from an upper surface and an upward-curved portion curved upward from a lower surface are repeatedly formed in the one direction.
    Type: Application
    Filed: October 15, 2021
    Publication date: May 19, 2022
    Applicant: GIST (Gwangju Institute of Science and Technology)
    Inventors: Nan Ei YU, Byeong Chan PARK
  • Patent number: 11301939
    Abstract: Purchase history data from one or more sources, such as communication servers, websites, and point of sale systems, is used to determine items that were purchased. Item data for the purchased items is used to determine the characteristics of the items. A user interface is generated that presents at least a portion of the item characteristics, which may include images of items that have been provided with a complementary background color to provide the user interface with a uniform appearance. User input may select a portion of the items for inclusion in a user interface that is accessible to other users. The user may be notified if another user purchases an item using the user interface or after viewing the user interface. The user interface may include links that enable a user to initiate a purchase or navigate to a website associated with an item or seller.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: April 12, 2022
    Assignee: GIST TECHNOLOGY INC.
    Inventors: Walter A. Haas, Shoaib Ghouse Mohideen Khan
  • Publication number: 20220084234
    Abstract: Provided are a method and electronic device for identifying a size of a measurement target object. The method includes imaging a reference object, which is a reference for identifying the size of the measurement target object, to acquire a reference object image, imaging the measurement target object to acquire a target object image, fusing the acquired reference object image and the acquired target object image, and inputting the fused reference object image and target object image to a first neural network model to acquire size information of the measurement target object from the first neural network model.
    Type: Application
    Filed: September 2, 2021
    Publication date: March 17, 2022
    Applicant: GIST(Gwangju Institute of Science and Technology)
    Inventors: Kyoobin LEE, Seunghyeok BACK, Sungho SHIN, Raeyoung KANG, Sangjun NOH
  • Publication number: 20220018807
    Abstract: The present disclosure relates to a microorganism detection apparatus using a dielectrophoresis (DEP) force.
    Type: Application
    Filed: July 20, 2021
    Publication date: January 20, 2022
    Applicant: GIST (Gwangju Institute of Science and Technology)
    Inventors: Sung YANG, Taek Eon JEONG, Jae Hyeon AHN, Yu Gyung JUNG
  • Publication number: 20210405042
    Abstract: Disclosed are a one-pot biosensor and an immunoassay method using the same. The one-pot biosensor includes a photocatalyst substrate deposited with metal nanoparticles; and a reaction pad which is disposed on an upper surface of the photocatalyst substrate and includes a first binding material-fluorescent material complex specifically binding to a molecule to be detected, and the immunoassay method using the same. The one-pot biosensor may detect a target by once solution injection and has a size enough to be portable. Accordingly, since the one-pot biosensor can detect the target by only once solution injection without a washing step, because of a sensor platform capable of being easily used by an individual other than a diagnostic expert, it is predicted to be positioned as a means capable of confirming the health condition of the individual without seeing the doctor, such as a pregnancy diagnostic kit which has been currently commercialized.
    Type: Application
    Filed: June 29, 2021
    Publication date: December 30, 2021
    Applicant: GIST (Gwangju Institute of Science and Technology)
    Inventors: Min Gon KIM, Ki Hyeun KIM, Eun Jung JO, Dong Gu HONG
  • Publication number: 20210350144
    Abstract: Provided is a mixed reality-based experience simulator including an imaging part including first and second cameras installed on an experience object to capture images of different viewpoints from the experience object, a display part worn by a participant and configured to display a mixed reality image of the experience object to the participant, and an image processing unit configured to provide the mixed reality image to the display part and configured to generate the mixed reality image such that images captured by the first and second cameras are included in the mixed reality image. The mixed reality-based experience simulator according to the present invention generates a mixed reality image on the basis of images captured by a plurality of cameras installed on an experience object and provides the generated mixed reality image to a participant so that a more realistic experience is provided.
    Type: Application
    Filed: September 9, 2020
    Publication date: November 11, 2021
    Applicant: GIST(Gwangju Institute of Science and Technology)
    Inventors: Seung Jun KIM, Gwang Bin KIM, Do Hyeon YEO, Ji Eun LEE
  • Patent number: 11132600
    Abstract: A method for generating a target network by performing neural architecture search using optimized search space is provided. The method includes steps of: a computing device (a) if a target data is inputted into the target network, allowing the target network to apply neural network operation to the target data, to generate an estimated search vector; and (b) allowing a loss layer to calculate architecture parameter losses by referring to the estimated search vector and a ground truth search vector, and to perform backpropagation by referring to the architecture parameter losses to update architecture parameter vectors for determining final layer operations among candidate layer operations included in an optimized layer type set corresponding to the optimized search space and wherein the final layer operations are to be performed by neural blocks, within cells of the target network, arranged according to an optimized cell template corresponding to the optimized search space.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: September 28, 2021
    Assignee: GIST(Gwangju Institute of Science and Technology)
    Inventors: Kunal Pratap Singh, Da Hyun Kim, Jong Hyun Choi
  • Publication number: 20210264240
    Abstract: A method for generating a target network by performing neural architecture search using optimized search space is provided. The method includes steps of: a computing device (a) if a target data is inputted into the target network, allowing the target network to apply neural network operation to the target data, to generate an estimated search vector; and (b) allowing a loss layer to calculate architecture parameter losses by referring to the estimated search vector and a ground truth search vector, and to perform backpropagation by referring to the architecture parameter losses to update architecture parameter vectors for determining final layer operations among candidate layer operations included in an optimized layer type set corresponding to the optimized search space and wherein the final layer operations are to be performed by neural blocks, within cells of the target network, arranged according to an optimized cell template corresponding to the optimized search space.
    Type: Application
    Filed: November 27, 2020
    Publication date: August 26, 2021
    Applicant: GIST(Gwangju Institute of Science and Technology)
    Inventors: Kunal Pratap SINGH, Da Hyun KIM, Jong Hyun CHOI
  • Publication number: 20210253437
    Abstract: A method for preparing a negative electrode active material for a lithium secondary battery according to one aspect of the present invention comprises the steps of: uniformly mixing silicon and metal oxide; and heating or ball-milling the mixture.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 19, 2021
    Applicant: GIST (Gwangju Institute of Science and Technology)
    Inventors: Heyong Jin KIM, Seok Ho SUH
  • Patent number: 11095398
    Abstract: A first electronic device according to various embodiments may select one of a plurality of representation matrices and one of a plurality of measurement matrices on the basis of a pattern and/or feature of data received from a sensor. The selection of the representation matrix and the measurement matrix may be performed on the basis of machine learning. Based on the selected representation matrix and measurement matrix, the first electronic device may adaptively compress at least a portion of the data. A second electronic device according to various embodiments may restore compressed data on the basis of the result of selecting the representation matrix and the measurement matrix. By dynamically selecting the representation matrix and the measurement matrix on the basis of machine learning, it is possible to reduce an error in the data restored by the second electronic device (e.g., a restoration error).
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: August 17, 2021
    Assignee: GIST (Gwangju Institute of Science and Technology)
    Inventors: Eui Seok Hwang, Jun Ho Song, Yong Gu Lee
  • Publication number: 20210247749
    Abstract: The present disclosure relates to a surface inspection method using a mold surface inspection device, and more specifically, to a surface inspection method using a mold surface inspection device including a setting part in which an inspection object is set, a light source part configured to irradiate the inspection object with irradiated light so that a reflective highlight is generated on a surface of the inspection object, an imaging part configured to image the surface of the inspection object so that a highlight region where a reflective highlight is generated is included, and an image processing part configured to process an image imaged in the imaging part to provide the image to a worker so that the worker determines whether defects are generated on the surface of the inspection object on the basis of the image.
    Type: Application
    Filed: September 30, 2020
    Publication date: August 12, 2021
    Applicant: GIST(Gwangju Institute of Science and Technology)
    Inventors: Sun Kyu LEE, Dae Gweon KOH, Han Ul KIM, Jin Hyuk HONG, Dinuka Ravimal Ranawaka Arachchige
  • Publication number: 20210237077
    Abstract: The present invention relates to an apparatus for a platelet function test using speckle decorrelation time analysis. An apparatus for a platelet function test according to an exemplary embodiment of the present invention may include: a laser unit for irradiating a blood sample including platelets with a laser; an image capturing unit for obtaining a speckle image of the blood sample irradiated with the laser; and a control unit for determining the speckle decorrelation time for platelets.
    Type: Application
    Filed: September 30, 2020
    Publication date: August 5, 2021
    Applicant: GIST(Gwangju Institute of Science and Technology)
    Inventors: Eui Heon CHUNG, Hee Jae JEON, Muhammad Mohsin QURESHI, Seung Yeob LEE
  • Patent number: 11080868
    Abstract: The present disclosure relates to a method and system for tracking an object of interest in real-time in a multi-camera environment capable of performing data communication without the occurrence of overlapping, and according to the present invention, an object of interest can be tracked in real-time on the basis of mutually captured image data even though capturing zones of a plurality of cameras capable of performing data communication according to the connection therebetween are not overlapped with each other.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: August 3, 2021
    Assignee: GIST(Gwangju Institute of Science and Technology)
    Inventors: Moon Gu Jeon, Hyung Uk Choi
  • Publication number: 20210152277
    Abstract: A first electronic device according to various embodiments may select one of a plurality of representation matrices and one of a plurality of measurement matrices on the basis of a pattern and/or feature of data received from a sensor. The selection of the representation matrix and the measurement matrix may be performed on the basis of machine learning. Based on the selected representation matrix and measurement matrix, the first electronic device may adaptively compress at least a portion of the data. A second electronic device according to various embodiments may restore compressed data on the basis of the result of selecting the representation matrix and the measurement matrix. By dynamically selecting the representation matrix and the measurement matrix on the basis of machine learning, it is possible to reduce an error in the data restored by the second electronic device (e.g., a restoration error).
    Type: Application
    Filed: April 28, 2020
    Publication date: May 20, 2021
    Applicant: GIST (Gwangju Institute of Science and Technology)
    Inventors: Eui Seok HWANG, Jun Ho SONG, Yong Gu LEE
  • Publication number: 20210146363
    Abstract: The present invention relates to a blood diagnostic device, which includes one or more blood input parts into which blood is injected, a deterministic lateral displacement separation part which communicates with the blood input part to form a blood flow path along which the blood flows and separates white blood cells from remaining blood components, a first microchannel which communicates with the deterministic lateral displacement separation part so that the white blood cells separated through the deterministic lateral displacement separation part flow therein, one or more second microchannels which communicate with the deterministic lateral displacement separation part so that the remaining blood components separated through the deterministic lateral displacement separation part flow therein, a first discharge part which communicates with the first microchannel so that the white blood cells flowing in the first microchannel are discharged therethrough, and a second discharge part which communicates with the
    Type: Application
    Filed: January 29, 2021
    Publication date: May 20, 2021
    Applicant: GIST(Gwangju Institute of Science and Technology)
    Inventors: Sung YANG, Ji Chul HYUN, Yu Gyung JUNG
  • Publication number: 20200175697
    Abstract: The present disclosure relates to a method and system for tracking an object of interest in real-time in a multi-camera environment capable of performing data communication without the occurrence of overlapping, and according to the present invention, an object of interest can be tracked in real-time on the basis of mutually captured image data even though capturing zones of a plurality of cameras capable of performing data communication according to the connection therebetween are not overlapped with each other.
    Type: Application
    Filed: January 23, 2018
    Publication date: June 4, 2020
    Applicant: GIST(Gwangju Institute of Science and Technology)
    Inventors: Moon Gu JEON, Hyung Uk CHOI
  • Publication number: 20190382702
    Abstract: The present disclosure relates to a herringbone-type fluid guiding unit and an apparatus for concentrating fluid using same. The herring-bone type fluid guiding unit includes: a front member formed on a flow path and formed so that the width between the left side and the right side widens from a front end part toward the back, with respect to the flow direction of a fluid; and a rear member extending from the front member toward the back, wherein the rear member is provided with a recessed part that is recessed to a specific depth from the rear edge toward the front or with a protruding part that protrudes toward the back.
    Type: Application
    Filed: July 24, 2019
    Publication date: December 19, 2019
    Applicant: GIST(Gwangju Institute of Science and Technology)
    Inventors: Sung Yang, Ji Chul Hyun