Patents Assigned to Advanced Institute of Science and Technology
  • Method and device for transmitting and receiving signal by using multiple beams in wireless communication system
    Patent number: 10389023
    Abstract: A method for receiving a signal by using M multiple beams in a multi-antenna system including N antenna elements, is provided in and embodiment of the present application. The method includes setting, by M beams, a beam direction for the M beams and a modulation frequency for frequency modulation of a beam response and generating the M beams according to the beam direction and the modulation frequency set by the beams. M beam responses are generated for a receiving signal by using the generated M beams and the generated M beam responses are frequency modulated by using the modulation frequency set by the beams. The frequency-modulated M beam responses are band-pass filtered so as to separate the M beam responses and the separated M beam responses are respectively demodulated.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 20, 2019
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Sang-Hyouk Choi, Yong-Hoon Kim, Hee-Seong Yang, Joo-Hwan Chun
  • Apparatus and method for CT data reconstruction based on motion compensation
    Patent number: 10373350
    Abstract: Disclosed is an apparatus for computed tomography (CT) image data reconstruction based on motion compensation. The apparatus for computed tomography (CT) data reconstruction based on motion compensation, the apparatus including a storage configured to store projection radiographs and an image processor configured to obtain pairs of opposite projection radiographs from the projection radiographs, and compensate a movement of a radiography subject based on a correlation between the projection radiographs of each pair of opposite projection radiographs.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: August 6, 2019
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Jong chul Ye, Ja wook Gu, Tae Woo Kim, Sung Il Choi, Woong Bae
  • Production Method For And Use Of Polymer Thin-Film Culture Plat For Production Method For And Application Of Cell Sheet
    Publication number: 20190233788
    Abstract: The present invention provides a culture plate comprising a copolymer formed from a first monomer for forming a thin film having high surface free energy and a second monomer for forming a thin film having low surface free energy, a method for producing the culture plate, and a method for producing and transferring a cell aggregate in the form of a cell sheet by using the culture plate. The present invention has the effect of producing a cell aggregate in the form of a cell sheet through an easy and simple process in comparison with prior art.
    Type: Application
    Filed: July 5, 2017
    Publication date: August 1, 2019
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Sung Gap IM, Eun Jung LEE, Ji Eung BAEK, Young Hak CHO, Seung Jung YU, Go Ro CHOI
  • System and method for transferring content among devices
    Patent number: 10366264
    Abstract: A system and method for transferring content among multiple devices are disclosed. Herein, the system for transferring content may include a coupling controller configured to identify a user equipment in accordance with a content transfer request and to perform coupling with the identified user equipment, and a content transfer unit configured to transmit content to the user equipment or to receive content from the user equipment, when coupling is completed.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: July 30, 2019
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Sang Sik Kim, Joon Yeong Park, Sung Kwan Jung, Jun Seok Park, Yong Chul Shin, Yong Rok Kim, Hyo Ju Park
  • METHOD FOR INSPECTING BALL GRID ARRAY-TYPE SEMICONDUCTOR CHIP PACKAGE
    Publication number: 20190227001
    Abstract: Disclosed are a method, an apparatus, and a system for inspecting a ball grid array-type semiconductor chip package. A first embodiment of the present invention provides an apparatus for inspecting a semiconductor chip package, the apparatus comprising: a first image acquisition unit for acquiring a reference image using a three-dimensional image of a semiconductor chip serving as a reference, the reference image being obtained by removing a region of interest from the three-dimensional image; a second image acquisition unit for acquiring a two-dimensional image of a semiconductor chip to be inspected; and an image processing unit for deriving an image of a region of interest of the semiconductor chip to be inspected, from the difference between the reference image and the two-dimensional image.
    Type: Application
    Filed: October 18, 2017
    Publication date: July 25, 2019
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Seungryong Cho, Miran Park, Hoyeon Lee
  • Apparatus and method for controlling array antenna device in communication system
    Patent number: 10361765
    Abstract: One or more embodiments provide a method for controlling array antenna device in a base station (BS) in a communication system. The method includes determining whether to perform a calibration operation for BSs while operating in one of a normal mode and an interference control mode. The method also includes transiting from the one of the normal mode and the interference control mode to a calibration mode based on the determining result of whether to perform the calibration operation for the BSs. A reference antenna among antennas included in the array antenna device is used in all of the normal mode, the interference control mode, and the calibration mode.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: July 23, 2019
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Ji-Yun Seol, Hee-Seong Yang, Joo-Hwan Chun
  • METHOD FOR PROCESSING X-RAY COMPUTED TOMOGRAPHY IMAGE USING NEURAL NETWORK AND APPARATUS THEREFOR
    Publication number: 20190221011
    Abstract: A method for processing an X-ray computed tomography (CT) image using a neural network and an apparatus therefor are provided. An image reconstruction method includes receiving low-dose X-ray CT data, obtaining an initial reconstruction image for the received low-dose X-ray CT data using a predetermined analytic algorithm, and reconstructing a denoised final image using the obtained initial reconstruction image and a previously trained neural network.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 18, 2019
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Jong Chul Ye, Eun Hee Kang
  • SPATIO-COHESIVE SERVICE DISCOVERY AND DYNAMIC SERVICE HANDOVER FOR DISTRIBUTED IOT ENVIRONMENTS
    Publication number: 20190222655
    Abstract: Spatio-cohesive service discovery and handover methods for distributed IoT environments are disclosed. The spatio-cohesive service discovery and handover methods include discovering a set of IoT (internet of thing) resources for providing a set of services which is a set of functionalities necessary for a task in distributed IoT environments, wherein the discovering a set of IoT resources may discover the set of IoT resources through a spatio-cohesive method considering spatial distance between a user and a service and between two services.
    Type: Application
    Filed: November 9, 2018
    Publication date: July 18, 2019
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: In-Young KO, Kyeongdeok BAEK
  • Differential Colpitts voltage-controlled oscillator
    Patent number: 10355643
    Abstract: A differential Colpitts voltage-controlled oscillator according to example embodiments includes a feedback circuit constituting a Colpitts oscillator structure, a negative resistance circuit including a first negative resistance transistor and a second negative resistance transistor cross-coupled to each other and connected to the feedback circuit, a resonance circuit including a first inductor and a variable capacitor connected to both ends of the first inductor to generate differential output signals base on outputs of the feedback circuit, and a phase noise reduction circuit coupled to the feedback circuit to remove phase noise.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: July 16, 2019
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Chul-Soon Park, Dong-Min Kang
  • Scheduling method and apparatus of wireless communication system
    Patent number: 10356799
    Abstract: A method and an apparatus for effectively determining a terminal which will transmit or receive packets in a packet-based wireless network are provided. The scheduling method of a base station of a wireless communication system includes determining a first status variable for an increment of whole network utility to data amount allocated to at least one terminal and a second status variable for an increment of the whole network utility to a scheduling chance allocated to the terminal, determining a scheduling metric based on the first and second status variables, and scheduling the at least one terminal based on the scheduling metric.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: July 16, 2019
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Yohan Kim, Song Chong, Eunyong Kim, Joseph Jeon, Okyoung Choi, Changsik Lee
  • Apparatus and method for processing bio optical signal using spread spectrum
    Patent number: 10345243
    Abstract: Disclosed is an apparatus and method for processing a bio optical signal based on a spread spectrum scheme including a demodulator configured to collect a bio optical signal generated in response to an incident beam modulated based on a spreading code being scattered from a target analyte, and remove a noise from the bio optical signal by demodulating the bio optical signal based on the spreading code, wherein the bio optical signal has a correlation with the modulated incident beam.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: July 9, 2019
    Assignees: Electronics and Telecommunications Research Institute, Korea Advanced Institute of Science and Technology
    Inventors: Won Kyoung Lee, Ki-Hun Jeong, Moonseong Park
  • Method for multicast transmission based on asynchronous request in wireless communication system and apparatus for the same
    Patent number: 10349228
    Abstract: A method for transmitting downlink data from a BS in a wireless communication system is disclosed. The method comprises receiving a first request signal of the downlink data from a first UE at a first timing point; transmitting packet of the downlink data to the first UE by using a unicast scheme until a multicast preparation time period passes from the first timing point; receiving a second request signal of the downlink data from a second UE at a second timing point after the first timing point; transmitting packet of the downlink data to the second UE by using the unicast scheme until the multicast preparation time period passes from the second timing point; and transmitting packet of the downlink data to a multicast group, which includes the first UE and the second UE, by using a multicast scheme when the multicast preparation time period passes.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: July 9, 2019
    Assignees: LG Electronics Inc., Research Business Foundation Sungkyunkwan Univ., Korea Advanced Institute of Science and Technology
    Inventors: Wan Choi, Bi Hong, Kyungrak Son, Dongin Kim, Hanbyul Seo
  • HIGHLY STRETCHABLE THREE-DIMENSIONAL PERCOLATED CONDUCTIVE NANO-NETWORK STRUCTURE, METHOD OF MANUFACTURING THE SAME, STRAIN SENSOR INCLUDING THE SAME AND WEARABLE DEVICE INCLUDING THE SAME
    Publication number: 20190202689
    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: Application
    Filed: December 12, 2016
    Publication date: July 4, 2019
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Seok-woo Jeon, Dong-hwi Cho
  • Method and apparatus for processing random access in wireless communication system
    Patent number: 10342048
    Abstract: The present disclosure relates to a 5G communication system or a pre-5G communication system for supporting higher data transmission rate compared to beyond 4G communication system such as LTE. A terminal, according to various embodiments of the present disclosure, comprises: a reception unit for receiving pilot signals; a processor for measuring reception strength of the pilot signals, determining beam-based random access participation on the basis of the measured reception strength, and controlling for an attempt for a beam-based random access if a random access is beam-based random access participation and an attempt for normal random access if not; and a transmission unit for transmitting a random access signal on the basis of the random access attempt.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: July 2, 2019
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Sunheui Ryoo, Sung-Jin Park, Nam-I Kim, Dong-Ho Cho
  • Intermediate semiconductor device having an aliphatic polycarbonate layer
    Patent number: 10340388
    Abstract: It is an object of the invention to provide a thin film transistor and a method for producing the same, which will easily achieve self-aligned formation of a source/drain region without through processes under a vacuum or a low pressure or with no use of expensive equipment.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: July 2, 2019
    Assignees: Japan Advanced Institute of Science and Technology, Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Satoshi Inoue, Tatsuya Shimoda, Nobutaka Fujimoto, Kiyoshi Nishioka, Shuichi Karashima
  • Apparatus and method for controlling uplink data retransmission
    Patent number: 10334524
    Abstract: A 5th Generation (5G) or pre-5G communication system for supporting a higher data rate than a 4G communication system such as Long Term Evolution (LTE) is provided. A method of an evolved Node B (eNB) can include detecting a collision caused by first data received from a first terminal in a time resource for contention-based uplink data transmission and second data received from a second terminal in the time resource, determining a first delay value in first data retransmission using a dedicated scheduling scheme, and determining a second delay value in the first data retransmission using a contention-based uplink data transmission scheme, determining a scheme for retransmitting the first data based on the first delay value and the second delay value, and transmitting information indicating the determined scheme to the first terminal.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: June 25, 2019
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Jung-Min Moon, Minhoe Kim, Dong Seok Roh, Dong-Ho Cho
  • Workstation, medical imaging apparatus having the same and method for controlling thereof
    Patent number: 10321886
    Abstract: Disclosed herein are workstation, medical imaging apparatus having the same and method for controlling thereof. The medical imaging apparatus includes an X-ray source configured to irradiate X-rays; an X-ray detector configured to obtain raw data by detecting X-rays irradiated from the X-ray source; and an image processor configured to determine a motion parameter to represent motion of at least one of an object, the X-ray source, and the X-ray detector from a medical image reconstructed based on the obtained raw data, and reconstruct a motion-compensated medical image of the object based on a virtual trajectory of the X-ray source generated based on the determined motion parameter.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: June 18, 2019
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Ji Young Choi, Jong Beom Ra, Seok Hwan Jang, Seung Eon Kim, Duhgoon Lee
  • Method and system for layout optimization of secondary coil for wireless power transfer
    Patent number: 10325718
    Abstract: Disclosed is a method for optimizing a layout of a secondary coil for a wireless power transfer. The method includes reconstructing a secondary coil based on a fixed grid, corresponding to a design domain, to set a relative turn of each fixed grid and obtaining at least one or more of an electromagnetic measure and a physical measure of the secondary coil to optimize a layout of the secondary coil; applying an effective turn to the optimized layout of the secondary coil to perform post-processing; and deriving a layout of a physical coil about the secondary coil. The effective turn corresponds to a difference between the relative turns existing at a same position.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: June 18, 2019
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: In Gwun Jang, Seung Beop Lee
  • INDUCTOR LAYOUT HAVING IMPROVED ISOLATION THROUGH BLOCKING OF COUPLING BETWEEN INDUCTORS, AND INTEGRATED CIRCUIT DEVICE USING SAME
    Publication number: 20190180931
    Abstract: Disclosed are an inductor layout and an integrated circuit device with improved isolation between inductors through shielding magnetic coupling between the inductors. first and second inductor coils are horizontally spaced apart from each other. A conductor loop is disposed in parallel above the first inductor coil and shields magnetic coupling between the first and second inductor coils in the manner that a part of magnetic flux of a first time-varying magnetic field generated by the second inductor coil is cancelled by magnetic flux of a second magnetic field generated by an induction current that flows in the conductor loop magnetically interlinked with the first time-varying magnetic field. The inductor layout can be applied to an RFIC device to reduce magnetic coupling between inductors of a power amplifier and an oscillator. Improved performance of the device and a very small RFIC can be achieved.
    Type: Application
    Filed: February 23, 2017
    Publication date: June 13, 2019
    Applicants: Korea Advanced Institute of Science and Technology, Research & Business Foundation Sungkyunkwan University
    Inventors: Hyung-joun Yoo, Sang-sun Yoo, Kang-yoon Lee
  • VR CONTENT SICKNESS EVALUATING APPARATUS USING DEEP LEARNING ANALYSIS OF MOTION MISMATCH AND METHOD THEREOF
    Publication number: 20190180448
    Abstract: A VR content sickness evaluating apparatus using a deep learning analysis of a motion mismatch and a method thereof are provided. The VR content sickness evaluating apparatus analyzes a motion mismatch phenomenon between visual recognition information and posture recognition information, which occurs when a user views VR content, using deep learning and predicts and evaluates a degree of VR sickness from a difference between motion features.
    Type: Application
    Filed: January 29, 2018
    Publication date: June 13, 2019
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: YongMan Ro, Hak Gu Kim