Electronics and Telecommunications Research Institute

Intellectual Discovery Co., Ltd.

Geun Yong Kim

Hark Yoo

Sung Chang Kim

Dongsoo Lee

Dong Soo Lee

Mun Seob Lee

Young Suk Lee

Youngsuk Lee

Jong Deog Kim

Jae In Kim

Hee Do Kim

Young Sun Kim

Taek Kyu Lee

Jai Sang Koh

Kiwook Sohn

Hyung Geun Oh

Sim-Kwon Yoon

Myeong Ryeol Choi

Ryang Soo Kim

Byung Hee Son

Chor Won Kim

Seok Won Lee

Moon Kyun Oh

SoonJwa Hong

Sim Kwon Yoon

Byung-Hee Son

Kyu Cheol Jung

Suk Won Lee

Gi Ha Yoon

In Seog Seo

Yongseok Yoo

Disclosed is an adaptive deep learning inference system that adapts to changing network latency and executes deep learning model inference to ensure end-to-end data processing service latency when providing a deep learning inference service in a mobile edge computing (MEC) environment. An apparatus and method for providing a deep learning inference service performed in an MEC environment including a terminal device, a wireless access network, and an edge computing server are provided. The apparatus and method provide deep learning inference data having deterministic latency, which is fixed service latency, by adjusting service latency required to provide a deep learning inference result according to a change in latency of the wireless access network when at least one terminal device senses data and requests a deep learning inference service.

Adaptive deep learning inference apparatus and method in mobile edge computing

Provided are a system and method for providing a microservice-based device control interface. The system for providing a microservice-based device control interface includes a Docker registry server in which resources required for providing a device control interface are located and a gateway which receives and installs resources and provides a device control interface using a Docker-based microservice structure.

System and method for providing microservice-based device control interface

A terminal status monitoring apparatus connected to a terminal at an optical subscriber side in an optical network is provided. A signal transferring unit transfers a downlink optical signal to the terminal and receives, as a reflected optical signal, the downlink optical signal which is reflected at the terminal. A signal receiving unit measures an intensity of the reflected optical signal. A signal processing unit determines a connection status of a terminal device at the terminal by comparing an intensity of the downlink optical signal with the intensity of the reflected optical signal. A signal output unit outputs the connection status.

Apparatus and method for monitoring status of terminal

An indexing apparatus and method for search of security monitoring data are provided. The indexing apparatus includes a data collection unit and a data index generation unit. The data collection unit collects data, that is, a basis of search of monitoring information, from a database in which security monitoring data has been stored. The data index generation unit generates file structure-based data in which indices have assigned to multiple search elements of the data collected by the data collection unit.

Indexing apparatus and method for search of security monitoring data

A method and an apparatus for setting a quiet window in a passive optical network system are provided. A first response time from a time after an optical line terminal (OLT) transmits a serial number request up to a time in which the OLT receives a first response signal to the serial number request is measured, and a second response time up to a time in which the OLT receives a final response signal to the serial number request is measured. In addition, distance information of an optical network unit (ONU) including the first response time and the second response time is acquired.

Method and apparatus for setting quiet window in passive optical network system

Disclosed is a method and an apparatus for selecting a wavelength in a hybrid Passive Optical Network (PON) system. The method of selecting a wavelength by a wavelength selecting apparatus in a hybrid passive optical network system includes: performing synchronization with any one of a plurality of downstream wavelengths; when the synchronization is succeeded, determining whether to select the synchronized downstream wavelength for a registration to an optical line terminal; and when it is determined to select the synchronized downstream wavelength, performing the registration to the optical line terminal through the synchronized downstream wavelength.

Method and apparatus for selecting wavelength in hybrid passive optical network system

Disclosed are a method and system for determining and controlling power of an optical transmitter of an optical network unit (ONU) for a time and wavelength division multiplexing passive optical network (TWDM-PON). The system includes an RSSI collector configured to collect received signal strength indication (RSSI) information from upstream optical signals received from the ONUs connected to optical line terminal (OLT) ports, an ONU power level determiner configured to gather the pieces of RSSI information about the ONUs from the RSSI collector, and to determine power of optical transmitters of the ONUs based on the gathered information, and a power mode controller configured to receive power mode setting information of the optical transmitters of the ONUs from the ONU power level determiner, and to generate a physical layer operation and maintenance (PLOAM) message to control power modes of the ONUs based on the received power mode setting information.

Method and system for determining and controlling power of optical transmitter of optical network unit for time and wavelength division multiplexing passive optical network

Provided is an apparatus of recognizing optical connector connection including an IC tag connection unit configured to provide bus power and detect whether the optical connector is connected to an optical adapter, an IC tag configured to store an IC tag ID uniquely given to the optical connector, which is connected to a corresponding optical cable, and to receive the bus power to be driven for bus communication, and an IC tag ID obtaining unit configured to obtain the IC tag ID stored in the IC tag through the IC tag connection unit, when the optical connector is connected to the optical adapter.

Apparatus and method for recognizing optical connector connection

Disclosed is a smart remote node optical network node including an optical layer monitoring unit configured to transmit a monitoring light signal to an optical network unit through an optical switch and receive a monitoring light signal reflected from the optical network unit, an infra recognition unit configured to recognize whether an optical connector is connected to an output port of a remote node and an identification number of the optical connector when the optical connector is connected thereto, and a control unit connected to the optical layer monitoring unit and the infra recognition unit and configured to control recognition and monitoring operations of the remote node according to a remote node application.

Smart remote node optical network unit and operation method thereof

Disclosed herein are an optical network unit and a method for controlling the unit. In a passive optical network system, an optical transceiver of the optical network unit performs a wavelength change of an optical signal according to a wavelength setting command transferred from a media access control (MAC) unit and monitors a wavelength change state and reports the monitored wavelength change state to the MAC unit. When the wavelength malfunction occurs, the MAC unit blocks an uplink optical transmission of the optical transceiver.

Optical network unit and method for controlling the unit

A fast protection switching method for a Passive Optical Network (PON). When performing protection switching from an operation link (an operation network) to a protection link (a protection network) in a PON, the fast protection switching method enables rapidly updating Equalization Delay (EqD) values, even if the EqD values are different for Optical Network Terminals (ONTs) of varying distances.

Fast protection switching method for passive optical network

Provided is a method of saving power in a passive optical network (PON) system including an optical line terminal (OLT) and a plurality of optical network units (ONUs), the OLT including an optical transceiver to communicate with at least one ONU through an optical line, and a controller to control the optical transceiver to transmit an upstream bandwidth map to the ONU at a predetermined transmission interval, wherein the transmission interval is determined based on a desired upstream data service delay time.

Method of controlling optical network unit (ONU) in sleep mode

Disclosed herein is an Intrusion Detection System (IDS) false positive detection apparatus and method. An IDS false positive detection apparatus includes a payload extraction unit for extracting payloads by dividing each packet corresponding to an IDS detection rule into a header and a payload. A false positive payload information generation unit generates false positive payload information required to identify a false positive payload by extracting a payload of a false positive packet based on results of packet analysis received from a manager. A false positive payload determination unit transmits results of a determination of whether each payload extracted by the payload extraction unit corresponds to a false positive payload, based on the false positive payload information, to the manager.

Intrusion detection system false positive detection apparatus and method

An apparatus and method for detecting forgery/falsification of a homepage. The apparatus includes a homepage image shot generation module for generating homepage image shots of an entire screen of an accessed homepage. A character string extraction module extracts character strings from each homepage image shot using an OCR technique. A character string comparison module compares each of the extracted character strings with character strings required for determination of homepage forgery/falsification, thus determining whether the extracted character string is a normal character string or a falsified character string. A homepage falsification determination module determines whether the corresponding homepage has been forged/falsified, based on results of the comparison. A character string learning module learns the character string extracted from the homepage image shot, based on results of the determination, and classifies the character string as the normal character string or the falsified character string.

Growing community of inventors

Gwangju, South Korea

Geun Yong Kim