Electronics and Telecommunications Research Institute

Mobileconvergence Co., Ltd.

Kyeong Ho Lee

Sung Back Hong

Kyung Pyo Jun

Sung Hoon Kim

Sang Wan Kim

Nam Seok Ko

Byung Jun Ahn

Hyun Kyu Cho

Dong Won Kang

Joon Kyung Lee

Byoung Youl Song

Sang Sik Yoon

Byungjun Ahn

Chang Ho Choi

Joong Bae Kim

Yong Wook Ra

Choul Soo Jang

Myung Chan Roh

Seong Mo Moon

Hae Won Jung

Young Jo Cho

Soon Seok Lee

Chang Eun Lee

Tae Sang Choi

Pyung Koo Park

Tae Sik Cheung

Jong Dae Park

Sun Cheul Kim

Seung-Woog Jung

Hak Suh Kim

Jin Ho Hahm

Sang Kil Park

Hyeon Sung Cho

Taesang Choi

Ki Cheol Jeon

Seungwoo Hong

Hyunjoo Kang

Joong-Ki Park

Ho Sang Ham

Seung Woog Jung

Hae Sook Park

Ki Dong Nam

Young Boem Choi

Sang Wha Lee

A method of controlling congestion of network equipment that connects networks with each other, includes determining a type of congestion based on a location of the network equipment; and identifying a network connection section having a strong possibility of occurrence of congestion based on the type of congestion, and setting a critical congestion bandwidth that is used to determine the occurrence of congestion. Further, the method includes identifying users required for equal distribution of traffic upon occurrence of congestion based on the critical congestion bandwidth; and equally distributing traffic to the identified users based on the critical congestion bandwidth, and then dropping an excess of arriving traffic over the equally distributed traffic, thereby performing avoidance of the congestion.

Method and apparatus for controlling congestion of network equipment

The present invention relates to a method and apparatus for performing IPv6 over IPv4 transition to improve performance of a control server. When an edge router selected by the control server according to a tunnel creation request of an IPv6 terminal receives a tunnel creation request message from the control server, the edge router transmits a tunnel creation response message for the received tunnel creation request message to the IPv6 terminal through the control server, and the edge router performs IPv6 over IPv4 transition through a tunnel created by the IPv6 terminal that received the tunnel creation response message so as to improve the performance of the control server. Therefore, loads of the control server occurred because all terminals set control tunnels to the control server can be prevented, and service extensibility due to the increase in the number of subscribers can be guaranteed.

IPv6 over IPv4 transition method and apparatus for improving performance of control server

A traffic control apparatus is provided which includes an interface connector to transmit/receive an Internet Protocol (IP) packet to/from an external circuit, a frame generator to receive the IP packet through the interface connector and to generate a Media Access Control (MAC) frame, and a network processor to transmit/receive the IP packet to/from the frame generator, to execute at least one programmable application, and to identify and classify the at least one programmable application.

Apparatus and method for controlling traffic

The present invention relates to a method and apparatus for transmitting data over a WLAN mesh network. Transmission sections of priority frames and general frames are initially set, and the priority frame transmission section is varied step-by-step within a specific range. Thus, QoS with respect to data requiring the real-time property can be guaranteed and transmission of general frames can be guaranteed to some degree. Accordingly, there is an effect that data transmission efficiency can be improved significantly.

Method and apparatus for transmitting data over wireless LAN mesh network

A device for providing forwarding and QoS information in a flow based network environment acquires first information and second information from a flow table therein on the basis of status information of a predetermined flow in order to provide dynamically updated information in a flow based network environment. When it is determined that first information and second information acquired based on a route ID of a series of information are updated, the flow table is updated and the updated information is provided.

Device and method for providing forwarding information and QOS information in flow based network environment

Provided is a method for configuring a control tunnel and a direct tunnel in an IPv4 network-based IPv6 service providing system. To provide IPv6 service, when a random request terminal receives a tunnel response message from a control server by using service information downloaded from a portal server at the time of initialization, the request terminal configures a control tunnel with the control server, and is registered to the control server. The request terminal transmits and receives a direct tunnel request message and a direct tunnel response message with a counterpart terminal by using its terminal information learned during the control tunnel configuration, i.e., network position information and status information, thereby configuring a direct tunnel. Thus, IPv6 communication is made through IPv4 based IPv6 tunneling, so that IPv6 application services that are not yet widely used can easily come into wide use. Also, only software change of each terminal and a control server is required without changing existing network equipment, so that a cost burden of a service provider can be minimized.

Method for configuring control tunnel and direct tunnel in IPv4 network-based IPv6 service providing system

There is provided a high-speed IP flow mediation apparatus using a network processor. The apparatus includes a server collecting flow information regarding IP traffic on a high-speed line and a network processor board analyzing the collected information according to Internet applications using a network processor, and transferring the analyzed flow information to a plurality of flow analysis systems.

High-speed IP flow mediation apparatus using network processor

An apparatus for performing fault tolerance against a failure occurring during driving robot software components includes: a component executor for executing the robot software components, which are assigned with one thread from an operating system and have a same priority and cycle, by using the assigned thread; and an executor monitor for periodically monitoring the operation of the component executor and determining whether or not there is a failure in the robot software components executed by the component executor. The apparatus further includes: an executor manager for generating the component executor which is assigned with the robot software components having the same priority and cycle and, when the executor monitor determines that there is a failure in the execution of the robot software components, generating a new component executor.

Fault tolerance method and apparatus for robot software component

A packet processing apparatus and method are provided. The packet processing apparatus changes a size of an input packet, analyzes the input packet to perform a second layer associated process, generates basic delivery headers of the input packet, processes the input packet to which the basic delivery headers are inserted according to a type of the input packet, transforms the header of the input packet to which the basic delivery headers are inserted, and transitions the header-transformed input packet to delivers the packet. Accordingly, it is possible to process various packets without addition of separate process to the packet processing apparatus. In addition, a use efficiency of a network processing unit can be optimized, so that it is possible to increase a packet processing rate and performance.

Packet processing apparatus and method codex

A communication method for using bandwidth efficiently in Internet protocol version 6 (IPv6) is provided to minimize use of header information that is added when the terminal is moved. According to the present invention, while maintaining compatibility between general terminals that conform to the mobile IPv6, bandwidth can be more efficiently used for terminals supporting functions defined in the present invention.

Communication method for using bandwidth efficiently in internet protocol version 6

A robot server for controlling a robot, a system for providing content having the same, and a method thereof are provided. The robot server communicating with the robot includes a virtual robot object and a virtual robot object manager. The robot server executes commands that are generated in correspondence to the robot and received from the robot, and controls the robot. The virtual robot object manager generates the virtual robot object corresponding to the robot and activates the virtual robot object when connected to the robot.

Robot server for controlling robot, system having the same for providing content, and method thereof

Provided is an operational status testing apparatus and method for an Ethernet-based APS process. A test command signal which contains a command to perform an operational test for the APS process of a first node and a second test response signal that indicates that the operation of the APS process of a second node is performed normally, from among far end request signals that are received from the second node connected to own first node via an Ethernet network, are filtered. When the far end request signals are test command signals, a first test response signal that indicates that the operation of the APS process of the first node is performed normally is generated, and a top priority local request signal is selected based on priorities of the first test response signal and at least one local request signal that indicates the status of the APS process of the first node, and an output signal to be transmitted to the second node is determined based on priorities of the top priority local request signal and the filtered the far end request signal. The function for testing the operational status for the APS process defined in ITU-T recommendation G.8031 is embodied, and when an operational status test request is received from another node, the APS process can be tested effectively without having to perform a complicated diagnosis operation for the APS process.

Operational status testing apparatus and method for Ethernet-based automatic protection switching process

A method for electronically checking documents as to their authenticity is disclosed, in which an official seal is not put on the document, but the document itself shows to be notarized, and the authenticity of a document can be electronically confirmed. The method for electronically checking the authenticities of documents includes the step of forming a document with an electronically authenticity-checking format for showing that a document has been notarized without using an official seal (first step). It further includes the step of judging as to whether the document with the electronically authenticity-checking format has been really notarized (second step). Therefore, a notarization feature can be provided even to facsimile documents and to printed-out documents. Therefore, a document having a notarization feature can be transmitted even to a remote place, thereby preventing forgery of documents.

Method for electronically checking authenticity of document

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Daejeon, South Korea

Kyeong Ho Lee