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    Method and system for simultaneously measuring surface normal vector and surface reflectance function in microscale
    461.
    发明授权
    Method and system for simultaneously measuring surface normal vector and surface reflectance function in microscale 有权

    公开(公告)号：US10281396B2

    公开(公告)日：2019-05-07

    申请号：US15427821

    申请日：2017-02-08

    Applicant: Korea Advanced Institute of Science and Technology

    Inventor： MinHyuk Kim ,  Giljoo Nam ,  Joo Ho Lee

    IPC: G01N21/55 ,  G02B21/26 ,  G02B21/06 ,  G01B11/24

    Abstract: Disclosed is a system for simultaneously measuring a surface normal vector and a surface reflection function in microscale. The system includes a light dome having a hemispherical-shaped structure and including LEDs to radiate light to an object placed therein; a macro lens installed camera arranged over the light dome to photograph the object through a hole formed at a center of the light dome under an environment in which a light is radiated from the light dome; an xyz micro-translation stage arranged under the light dome and configured to move in xyz-directions to adjust a focal distance between the macro lens installed camera and the object, and a measurement unit configured to control the light dome and the macro lens installed camera to obtain a microscale image, and configured to simultaneously measure a surface normal vector and a surface reflection function of the object based on the microscale image.

    HONEYNET METHOD, SYSTEM AND COMPUTER PROGRAM FOR MITIGATING LINK FLOODING ATTACKS OF SOFTWARE DEFINED NETWORK
    462.
    发明申请
    HONEYNET METHOD, SYSTEM AND COMPUTER PROGRAM FOR MITIGATING LINK FLOODING ATTACKS OF SOFTWARE DEFINED NETWORK 审中-公开

    公开(公告)号：US20190132360A1

    公开(公告)日：2019-05-02

    申请号：US16159297

    申请日：2018-10-12

    Applicant: Korea Advanced Institute of Science and Technology

    Inventor： Seungwon Shin ,  Jinwoo Kim

    IPC: H04L29/06

    Abstract: The present invention which relates to HoneyNet method, system, and computer program for mitigating link flooding attacks by exposing Honey Topology in SDN (Software Defined Networking) includes a Honey Node detecting unit configured to detect Honey Node Set of static metric and dynamic metric calculating from a SDN controller and OF (OpenFlow), a Honey Topology generating unit configured to arrange Honey Topology by applying probability model for the Honey Node Set, and an access determining unit configured to detect packet-in triggered to a Honey Node, and control transmission of packet to the Honey Topology from the Honey Node.

    Gas sensor and member using metal oxide semiconductor nanofibers including nanoparticle catalyst functionalized by bifunctional nano-catalyst included within apoferritin, and manufacturing method thereof
    463.
    发明授权
    Gas sensor and member using metal oxide semiconductor nanofibers including nanoparticle catalyst functionalized by bifunctional nano-catalyst included within apoferritin, and manufacturing method thereof 有权

    公开(公告)号：US10274467B2

    公开(公告)日：2019-04-30

    申请号：US14855975

    申请日：2015-09-16

    Applicant: Korea Advanced Institute of Science and Technology

    Inventor： Ii-Doo Kim ,  Sang-Joon Kim ,  Seon-Jin Choi

    IPC: G01N31/10 ,  D01D5/00 ,  D01F9/10 ,  B82Y30/00 ,  C04B35/622

    Abstract: The inventive concepts relate to a member for a gas sensor, a gas sensor using the same and a manufacturing method thereof, and more particularly, to a member for a gas sensor using a one-dimensional metal oxide nanofiber complex material containing hetero nanoparticle catalysts synthesized using apo-ferritins, a gas sensor using the same, and a manufacturing method thereof.According to embodiments of the inventive concepts, apo-ferritins containing hetero nanoparticle catalysts are mixed with an electrospinning solution, the mixture solution is electrospun to form complex nanofibers, and then a high-temperature thermal treatment process is performed to remove the apo-ferritins. Thus, the hetero nanoparticle catalysts are uniformly fastened to an inside and a surface of one-dimensional metal oxide nanofibers to form a member for a gas sensor. As a result, the member for a gas sensor has a high-sensitivity characteristic capable of sensing a very small amount of a gas and excellent selectivity capable of sensing various gases. In addition, a catalyst effect is maximized by the hetero nanoparticle catalysts uniformly distributed without aggregation. Furthermore, the member for a gas sensor and the gas sensor using the same can be mass-produced by a process method capable of effectively forming pores and of fastening high-performance catalysts.

    METHOD AND SYSTEM FOR DIGITAL-ANALOG HYBRID BEAMFORMING IN MILLIMETER WAVE DOWNLINK CHANNEL
    464.
    发明申请
    METHOD AND SYSTEM FOR DIGITAL-ANALOG HYBRID BEAMFORMING IN MILLIMETER WAVE DOWNLINK CHANNEL 审中-公开

    公开(公告)号：US20190109629A1

    公开(公告)日：2019-04-11

    申请号：US16209439

    申请日：2018-12-04

    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Hyuncheol PARK ,  Girim KWON

    IPC: H04B7/06 ,  H04B7/08 ,  H04B7/0456 ,  H04B17/336

    Abstract: Disclosed is a method and system for digital-analog hybrid beamforming in a millimeter wave downlink channel. A hybrid beamforming method in a downlink channel with respect to at least one user terminal belonging to a transmission apparatus includes receiving feedback information from each of the at least one user terminal; selecting at least one user terminal for transmitting a transmission signal based on the received feedback information; performing digital beamforming with respect to the selected at least one user terminal; and performing analog beamforming with respect to the selected at least one user terminal based on a prestored codebook. The codebook includes a desired number of subsets calculated based on a number of transmit antennas and a number of radio frequency (RF) chains, and each of the subsets includes a number of beamforming vectors corresponding to the number of RF chains.

    SELF-GENERATION SENSOR DEVICE AND SELF-GENERATION SENSOR SYSTEM USING THE SAME
    466.
    发明申请
    SELF-GENERATION SENSOR DEVICE AND SELF-GENERATION SENSOR SYSTEM USING THE SAME 审中-公开

    公开(公告)号：US20190081223A1

    公开(公告)日：2019-03-14

    申请号：US16083460

    申请日：2018-03-13

    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY ,  TEGWAY CO., LTD.

    Inventor： Byung Jin CHO ,  Yongjun KIM ,  Choong Sun KIM ,  Kyoung Soo YI

    IPC: H01L35/04 ,  H01L35/24

    Abstract: A self-generation sensor device and a self-generation sensor system using the same are disclosed. According to one embodiment, the self-generation sensor device may include: a sensor unit; a communication unit configured to transmit data reflecting a sensed value of the sensor unit; and a thermal power generation module including a pair of main surfaces including a high-temperature surface thermally connected to the high-temperature object and a low-temperature surface which is a surface opposite to the high-temperature surface, a thermoelectric module including a plurality of thermoelectric elements disposed between the pair of main surfaces and producing the power by using a temperature difference between the both main surfaces due to the high-temperature object, and a support member filled in a space between the both main surfaces to support the thermoelectric elements, and a heat dissipation member connected to the low-temperature surface.

    Communication apparatus and method using random access procedure
    467.
    发明授权
    Communication apparatus and method using random access procedure 有权

    公开(公告)号：US10231196B2

    公开(公告)日：2019-03-12

    申请号：US15502857

    申请日：2016-02-23

    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Dan Keun Sung ,  Han Seung Jang ,  Su Min Kim

    IPC: H04W74/08 ,  H04W52/60 ,  H04W52/14 ,  H04L25/00 ,  H04J13/00 ,  H04W52/16

    Abstract: User equipment (UE) that includes a processor and that executes a random access procedure with a base station (E-UTRAN Node B (eNodeB), also known as Evolved Node B) is provided. The UE can at least temporarily be embodied by the processor. The UE may comprise: a determination unit for determining a message size that can be transmitted and that corresponds to a physical random access channel according to an assigned communication method with the base station; a calculation unit for configuring a message to correspond to the message size and for respectively calculating a preamble index and at least one message index from the message; and an encoder for providing respective encoding of the preamble index and the at least one message index, and transmitting the same to the base station.

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