公开(公告)号：US09667341B2

公开(公告)日：2017-05-30

申请号：US14801147

申请日：2015-07-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Wook Youn ,  Je Soo Ko ,  Seung Woo Lee

IPC: G02F1/00 ,  H04B10/032 ,  H04J3/16 ,  H04J3/08

CPC classification number: H04B10/032 ,  H04J3/085 ,  H04J3/1652 ,  H04J2203/006

Abstract: An apparatus for protection switching in an optical transport network (OTN) includes: a working path interface module configured to check, via a working path for protection switching, connectivity of a first end node and a corresponding second end node; and a protecting path interface module configured to check connectivity of the first end node and the second node via a protection path for protection switching. Upon confirming the connectivity, the working path interface module and the protection path interface module exchange bandwidth resize (BWR) coordination information with each other and simultaneously output an ODUflex bandwidth control signal based on the exchanged BWR coordination information.

公开(公告)号：US20150055775A1

公开(公告)日：2015-02-26

申请号：US14063777

申请日：2013-10-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kang Il CHOI ,  Bhum Cheol Lee ,  Seung Woo Lee ,  Young Ho Park ,  Jung Hee Lee ,  Sang Min Lee

IPC: H04L9/30

CPC classification number: H04L9/0894

Abstract: An exemplary embodiment provides an image processing apparatus, including: a first detector configured to detect a privacy image from a first image when the first image is input; a protection processor configured to scramble the privacy image to a privacy protection image using a scrambling key when the privacy image is detected; and an encryption processor configured to create a second image in which the first image including the privacy protection image is encrypted using an encryption key.

Abstract translation: 一个示例性实施例提供一种图像处理装置，包括：第一检测器，被配置为当输入第一图像时从第一图像检测隐私图像; 保护处理器，被配置为当检测到隐私图像时，使用加扰密钥将隐私图像加密到隐私保护图像; 以及加密处理器，被配置为创建第二图像，其中使用加密密钥对包括所述隐私保护图像的所述第一图像进行加密。

公开(公告)号：US20140126371A1

公开(公告)日：2014-05-08

申请号：US14061862

申请日：2013-10-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kang Il Choi ,  Bhum Cheol Lee ,  Jung Hee Lee ,  Young Ho Park ,  Sang Min Lee ,  Seung Woo Lee

IPC: H04L12/851 ,  H04L12/931

CPC classification number: H04L47/24 ,  H04L47/20 ,  H04L49/70

Abstract: An exemplary embodiment of the present invention provides a flow switch, and an operating method thereof, and more particularly, to a flow switch for providing network virtualization, in which a quality of service (QoS) for a packet for each virtual machine is easily secured through flow information extracted from each of a plurality of packets when the plurality of packets generated by a plurality of virtual machines is input in a server virtualization environment, and an operating method thereof.

Abstract translation: 本发明的一个示例性实施例提供了一种流量开关及其操作方法，更具体地，涉及一种用于提供网络虚拟化的流量开关，其中用于每个虚拟机的分组的服务质量（QoS）容易地被保护 通过在服务器虚拟化环境中输入由多个虚拟机生成的多个分组时，从多个分组中的每一个提取的流信息及其操作方法。

公开(公告)号：US10904043B2

公开(公告)日：2021-01-26

申请号：US15931821

申请日：2020-05-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hun Sik Kang ,  Sang Rok Moon ,  Seung Woo Lee ,  In Ki Hwang ,  Sun Hyok Chang

IPC: H04L25/03 ,  H04L1/00 ,  H04L25/02 ,  H04L1/20

Abstract: An optical transmission method for processing a signal based on direct detection includes setting, by an equalizer, an adaptive equalization coefficient by performing an equalization process during a training symbol field section in a frame of a received signal, performing, by a channel estimator, channel estimation to perform an equalization process of a soft output maximum likelihood sequence equalizer (MLSE) during the training symbol field section, driving the soft output MLSE, and compensating for, by the soft output MLSE, distortion of the received signal during a data symbol field section in the frame on the basis of the adaptive equalization coefficient and an estimated result value of a channel, and recovering, by an error corrector which allows soft-decision processing to be performed, the received signal by performing error correction on the received signal in which the distortion is compensated for.

公开(公告)号：US09866314B2

公开(公告)日：2018-01-09

申请号：US15131424

申请日：2016-04-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Woo Lee

IPC: H04B10/00 ,  H04B10/032 ,  H04Q11/00 ,  H04L7/00

CPC classification number: H04B10/032 ,  H04J2203/006 ,  H04L7/0075 ,  H04Q11/00 ,  H04Q11/0005 ,  H04Q2011/0043

Abstract: Provided is a linear automatic protection switching (APS) apparatus and method that minimizes a data loss in an optical transport network (OTN) system, the apparatus and method that may maintain time synchronization by transmitting/receiving time synchronization signals between APS apparatuses of a working path and a redundant path, and transmitting/receiving time synchronization signals between local and remote APS apparatuses.