公开(公告)号：US10098145B2

公开(公告)日：2018-10-09

申请号：US15259756

申请日：2016-09-08

Applicant: Seoul National University of Technology Center for Industry Collaboration ,  LG ELECTRONICS INC.

Inventor： Jihoon Yun ,  Sanghyun Kim ,  Suhwook Kim

IPC: H04W4/00 ,  H04W74/00 ,  H04W48/10 ,  H04W74/02 ,  H04W84/12 ,  H04W48/12

Abstract: Provided are a method and a device for transmitting and receiving a traffic stream in a wireless local area network (WLAN) system. Specifically, the device broadcasts a beacon frame including allocation information on a contention-free period (CFP) and allocation information on a contention period (CP) to a station (STA) and transmits a downlink traffic stream to the STA or receives an uplink traffic stream from the STA, based on the allocation information on the CFP. The allocation information on the CFP indicates that the downlink traffic stream is transmitted without performing a clear channel assessment (CCA) during the CFP and indicates that the uplink traffic stream is received with performing a CCA during the CFP.

公开(公告)号：US09825702B2

公开(公告)日：2017-11-21

申请号：US14442396

申请日：2013-11-11

Applicant: Seoul National University of Technology Center for Industry Collaboration

Inventor： Jaesang Cha

IPC: H04B10/00 ,  H04B10/116 ,  G09G3/3208

CPC classification number: H04B10/116 ,  G09G3/3208 ,  G09G2370/18

Abstract: An OLED display capable of visible light communication and a visible light communication system having same are disclosed. The OLED display comprises an OLED display unit, a data memory unit, and an OLED control unit. The OLED display unit emits an image which is outwardly displayed and additional information which is included in the image. The data memory unit is storing image data corresponding to the image and additional data corresponding to the additional information. The OLED control unit controls the OLED display unit to display the image by using the image data provided by the data memory unit and controls the flicker of the image within a range which cannot be perceived by human eyes so that the additional information is included in the image by using the additional data provided by the data memory unit. As described above, the OLED display displays not only a general image but also additional information included in the image and thus can perform an image display function together with a reception function in visible light communication.

公开(公告)号：US20160277106A1

公开(公告)日：2016-09-22

申请号：US14442396

申请日：2013-11-11

Applicant: SEOUL NATIONAL UNIVERSITY OF TECHNOLOGY CENTER FOR INDUSTRY COLLABORATION

Inventor： Jaesang CHA

IPC: H04B10/116 ,  G09G3/3208

CPC classification number: H04B10/116 ,  G09G3/3208 ,  G09G2370/18

Abstract: An OLED display capable of visible light communication and a visible light communication system having same are disclosed. The OLED display comprises an OLED display unit, a data memory unit, and an OLED control unit. The OLED display unit emits an image which is outwardly displayed and additional information which is included in the image. The data memory unit is storing image data corresponding to the image and additional data corresponding to the additional information. The OLED control unit controls the OLED display unit to display the image by using the image data provided by the data memory unit and controls the flicker of the image within a range which cannot be perceived by human eyes so that the additional information is included in the image by using the additional data provided by the data memory unit. As described above, the OLED display displays not only a general image but also additional information included in the image and thus can perform an image display function together with a reception function in visible light communication.

Abstract translation: 公开了一种能够进行可见光通信的OLED显示器和具有其的可见光通信系统。 OLED显示器包括OLED显示单元，数据存储单元和OLED控制单元。 OLED显示单元发出向外显示的图像和包括在图像中的附加信息。 数据存储单元存储对应于图像的图像数据和对应于附加信息的附加数据。 OLED控制单元通过使用由数据存储单元提供的图像数据来控制OLED显示单元来显示图像，并且将图像的闪烁控制在人眼不能察觉的范围内，使得附加信息被包括在 通过使用由数据存储单元提供的附加数据的图像。 如上所述，OLED显示器不仅显示一般图像，而且显示包括在图像中的附加信息，并且因此可以在可见光通信中执行图像显示功能以及接收功能。

公开(公告)号：US08890658B2

公开(公告)日：2014-11-18

申请号：US13584967

申请日：2012-08-14

Applicant: Ji Hoon Bae ,  Chan Won Park ,  Hyung Chul Park ,  Jong Suk Chae ,  Cheol Sig Pyo

Inventor： Ji Hoon Bae ,  Chan Won Park ,  Hyung Chul Park ,  Jong Suk Chae ,  Cheol Sig Pyo

IPC: G06K7/01 ,  H04L1/00 ,  G06K19/07 ,  H04L25/49 ,  H04L27/34

CPC classification number: H04L1/0045 ,  G06K19/0717 ,  H04L1/0041 ,  H04L1/0057 ,  H04L25/4917 ,  H04L27/34

Abstract: An RFID system using an M pulse amplitude modulation (M-PAM) or M quadrature amplitude modulation (M-QAM) scheme using a plurality of load-modulators, a plurality of antennas, and a communication method thereof are provided. The RFID system includes: an RFID tag; and a reader device communicating with the RFID device, wherein the RFID tag includes: N load-modulators an N antennas communicating with the reader device in any one scheme of M-pulse amplitude modulation (M-PAM) and M-quadrature amplitude modulation (M-QAM) in which modulation of an M level is performed and operated corresponding to the M level.

Abstract translation: 提供了使用使用多个负载调制器的M脉冲幅度调制（M-PAM）或M正交幅度调制（M-QAM）方案的RFID系统，多个天线及其通信方法。 RFID系统包括：RFID标签; 以及与所述RFID设备通信的读取器设备，其中所述RFID标签包括：N个负载调制器，N个天线与所述读取器设备以任何一种M脉冲幅度调制（M-PAM）和M-正交幅度调制（M- M-QAM），其中对应于M电平执行和操作M电平的调制。

公开(公告)号：US10014939B2

公开(公告)日：2018-07-03

申请号：US15032703

申请日：2014-10-28

Applicant: SEOUL NATIONAL UNIVERSITY OF TECHNOLOGY CENTER FOR INDUSTRY COLLABORATION

Inventor： Jae-Sang Cha

IPC: H04B10/00 ,  H04B10/116 ,  G01S5/16 ,  H04B10/50 ,  H04W4/02 ,  H04W64/00

CPC classification number: H04B10/116 ,  G01S5/16 ,  H04W4/029 ,  H04W64/00

Abstract: The present invention provides a smart device which can receive, by an image sensor of a camera, a visible light signal generated by a light-emitting source such as a lighting apparatus or a display, and which can transmit the visible light signal to another terminal and light-emitting source by an LED flash of the camera, thereby enabling transmission and reception of visible light communication by the camera, which is equipped as standard in the smart device, as well as enabling transmission and relay of data by connecting to RF communication such as WiFi, Bluetooth and UWB. Moreover, the present invention provides a system and a method for providing location-based services which measure an approximate current location of a user by an RF communication access point and measure the current location of the user in detail by receiving a visible light signal, which includes location information, from the light-emitting source, and thus can perform a high-precision indoor location recognition function linking visible light communication and RF communication and can provide guide image information, which comprises various additional information, on the basis of the location information of the user.

公开(公告)号：US20150112850A1

公开(公告)日：2015-04-23

申请号：US14521696

申请日：2014-10-23

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE ,  SEOUL NATIONAL UNIVERSITY OF TECHNOLOGY CENTER FOR INDUSTRY COLLABORATION

Inventor： Hyedong JUNG ,  Seung Eun LEE

IPC: G06Q40/04

CPC classification number: G06Q40/04

Abstract: Provided are an automatic financial product trading system and method for automatically trading a financial product when the financial product satisfies a preset trading condition. Through an automatic ordering accelerator using separate hardware or an automatic ordering accelerator installed in a network card, rather than a main processor of a computer system, information input and output through a network card is collected and a financial product is quickly automatically traded.

Abstract translation: 提供了一种自动金融产品交易系统和方法，用于在金融产品满足预设交易条件时自动交易金融产品。 通过自动排序加速器，使用单独的硬件或安装在网卡中的自动排序加速器，而不是计算机系统的主处理器，收集通过网卡输入和输出的信息，并迅速自动交易金融产品。

公开(公告)号：US20130275804A1

公开(公告)日：2013-10-17

申请号：US13729096

申请日：2012-12-28

Applicant: Seoul National University of Technology Center For Industry Collaboration

Inventor： Seung Eun Lee

IPC: G06F11/08

CPC classification number: G06F11/08 ,  H04L1/0014 ,  H04L49/109

Abstract: An NoC-based error correction apparatus capable of supporting a network interface that transmits a flit between Tx and Rx IP-elements includes: an encoder configured to receive a k-bit flit from the Tx IP-element and encodes the k-bit flit into n-bit data; and a decoder configured to receive the n-bit data, decode the n-bit data into the k-bit flit, and output the k-bit flit, the decoder having an error correction circuit for correcting an error in the n-bit data, wherein a t-bit adaptive error correction code having a variable error correction capability depending on the number of bits (n) of the received data is applied to the error correction circuit, the error correction capability is proportional to the number of bits (n) of the received data, and the t-bit error correction code has the number of bits proportional to the number of bits (n) of the received data.

Abstract translation: 一种能够支持在Tx和Rx IP元件之间传输闪存的网络接口的基于NoC的纠错装置包括：编码器，被配置为从Tx IP元件接收k比特片，并将k比特转换成 n位数据; 以及解码器，被配置为接收n位数据，将n比特数据解码为k比特轮转，并输出k比特轮换，解码器具有用于校正n比特数据中的错误的纠错电路 ，其中根据所接收数据的位数（n）具有可变纠错能力的t位自适应纠错码被应用于纠错电路，纠错能力与位数（n ），并且t位纠错码具有与接收数据的位数（n）成比例的比特数。

公开(公告)号：US10195840B2

公开(公告)日：2019-02-05

申请号：US15318319

申请日：2015-02-24

Applicant: Seoul National University of Technology Center for Industry Collaboration

Inventor： Sangjo Han

IPC: B29C67/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B29C64/124 ,  B29C64/106 ,  B29C64/241 ,  B29C64/379 ,  B29C64/245 ,  B29C64/277 ,  B29C64/286 ,  B29C64/264 ,  B29C64/129 ,  B29C64/393

Abstract: The present disclosure relates to a three-dimension printing apparatus using photocurable resin, the three-dimension printing apparatus capable of easily separating the cured photocurable resin from a bottom surface of an accommodating unit where the photocurable resin is accommodated by moving the accommodating unit in a spiral direction, and including the accommodating unit configured to receive light being emitted from a light source, and to provide space for the photocurable resin accommodated therein to be cured by the light; a moving unit configured to move cured photocurable resin in a direction distancing away from the light source, so that the photocurable resin accommodated in the accommodating unit is cured sequentially by the light; and a separation guiding unit mounted onto the accommodating unit, and configured to move at the same time as the accommodating unit along a spiral direction so that the cured photocurable resin is separated from an inner surface of the accommodating unit.

公开(公告)号：US20090238875A1

公开(公告)日：2009-09-24

申请号：US12083705

申请日：2006-08-28

Applicant: Insup Noh ,  Yongdoo Park ,  Kyuback Lee ,  Soonjung Hwang ,  Kyung Sun ,  Gunwoo Kim

Inventor： Insup Noh ,  Yongdoo Park ,  Kyuback Lee ,  Soonjung Hwang ,  Kyung Sun ,  Gunwoo Kim

IPC: A61K9/14 ,  C07H5/06

CPC classification number: C08B37/003 ,  C08B37/0072 ,  C08L5/08

Abstract: Disclosed are a chitosan-chitosan-polyethylene oxide hydrogel formed via covalent bonding between chitosan derivatives crosslinked with an acrylate or methacrylate functional group-containing substance and a thiol functional group-containing substance and hydrogel microbeads thereof; a hyaluronic acid-hyaluronic acid-polyethylene oxide hydrogel formed via covalent bonding between hyaluronic acid derivatives crosslinked with an acrylate or methacrylate functional group-containing substance and a thiol functional group-containing substance and hydrogel microbeads thereof; and a chitosan-hyaluronic acid-polyethylene oxide hydrogel formed via covalent bonding between a chitosan derivative crosslinked with a (meth)acrylate functional group-containing substance as well as a hyaluronic acid derivative crosslinked with a (meth) acrylate functional group-containing substance and a thiol functional group-containing substance and hydrogel microbeads thereof.

Abstract translation: 公开了通过与含丙烯酸酯或甲基丙烯酸酯官能团的物质和含硫醇官能团的物质和水凝胶微珠交联的壳聚糖衍生物之间的共价键而形成的壳聚糖 - 壳聚糖 - 聚环氧乙烷水凝胶; 通过与含丙烯酸酯或甲基丙烯酸酯官能团的物质交联的透明质酸衍生物与含硫醇官能团的物质和水凝胶微珠之间的共价键合形成的透明质酸 - 透明质酸 - 聚环氧乙烷水凝胶; 和通过与（甲基）丙烯酸酯官能团含有物质交联的壳聚糖衍生物和与（甲基）丙烯酸酯官能团物质交联的透明质酸衍生物之间的共价键而形成的壳聚糖 - 透明质酸 - 聚环氧乙烷水凝胶，以及 含硫醇官能团的物质及其水凝胶微珠。

公开(公告)号：US10295884B2

公开(公告)日：2019-05-21

申请号：US15322101

申请日：2014-12-04

Applicant: Seoul National University of Technology Center for Industry Collaboration

Inventor： Hyunsik Yoon

IPC: G02F1/29 ,  G02B27/22

Abstract: A display device is disclosed. The display panel may comprise a display panel including a pixel area and a light refraction element disposed on the display panel. The light refraction element may have a first face facing the display panel and a second face disposed at an opposite side of the first face. The light refraction element may comprise a light refraction pattern disposed at the first face and having a first slanting face and a second slanting face, and the light refraction pattern can refract light emerging from the display panel.