Electronics and Telecommunications Research Institute

Bup Joong Kim

Byung Jun Ahn

Hyun Jae Lee

Woo Young Choi

Hong Ju Kim

Sun Me Kim

Ji Wook Youn

Hak Suh Kim

Kook Jin Nam

Min Soo Kim

Jae Young Kim

Tae Whan Yoo

Hyun Woo Cho

Jea Hoon Yu

Tae Kyu Kang

Yong Wook Ra

Bheom Soon Joo

Chul Hyung Zhung

Jae Hoon Yu

Provided is a method of extending a remote function such that a server in operation may extend the remote function through an optical connection network without distance limitations. More specifically, the method may be used to link operations between two or more devices connected to the optical connection network, and a method of mirroring a remote function of a memory an accelerator, and the like, in a local function of the server through the optical connection network may be provided.

Method of extending remote function and remote function extension device for performing the method

Provided is a data processing system, including: a plurality of line matching blocks each including a data processor configured to store predefined preliminary transmission tables corresponding to the respective events requiring change of a data path, to determine whether to change a transmission table based on information received through an internal communication device, and to select and activate a preliminary transmission table corresponding to an event from among the preliminary transmission tables, wherein the preliminary transmission tables include destination information on all the physical or logical paths; and a shared bus configured to enable information on an event requiring change of the data path to be transmitted and received between the plurality of line matching blocks.

Data processing system and method for changing a transmission table

Provided is a packet/TDM switch that may classify a type of a received signal based on slot recognition information received from an Ethernet mapping unit or a TDM mapping unit, and may process the received signal using a dedicated switch corresponding to each of the Ethernet mapping unit and the TDM mapping unit according to the type of the received signal.

Method and apparatus for switching packet/time division multiplexing (TDM) including TDM circuit and carrier ethernet packet signal

A ring network system includes a plurality of node apparatuses that are sequentially connected through a transmission medium that is formed in a ring form. In the ring network system, the remaining node apparatuses, except for a first node apparatus of the plurality of node apparatuses pass an optical signal that is transmitted from the first node apparatus, and a second node apparatus corresponding to a destination of the optical signal among the remaining node apparatuses, extracts the optical signal while transferring the first optical signal to a next node apparatus of the second node apparatus.

Node apparatus and method of receiving optical signal thereof, and ring network system

A memory mapping apparatus for a multi-processing unit includes at least one memory matching unit configured to perform matching between a plurality of processing units and a plurality of memories, a memory controller configured to perform access control and arbitration for the respective memories, a memory mapping unit configured to include a window map for the respective processing units, make correspond the memories to the respective processing units with reference to the window map, and assign part of the entire address region of the corresponding memory, and a window map change unit configured to change a window map for a processing unit in which a request to use the memory has occurred in response to a request to use the memory from any one of the processing units.

Method and apparatus for assigning a memory to multi-processing unit

Provided is a memory switching control apparatus using an open serial interfacing scheme capable of enhancing flexibility, reliability, availability, performance in a data communication processes between a memory and a processing unit and an operating method thereof. The memory switching control apparatus includes: one or more processor interfacing units which perform interfacing with one or more processing units; one or more memory interfacing units which have open-serial-interfacing-scheme memory interfacing ports to interface with data storage devices connected to the memory interfacing ports in a serial interfacing scheme; and a plurality of arbitrating units which are provided corresponding to the memory interfacing units to independently arbitrate usage rights of the processor interfacing units to the memory interfacing units.

Memory switching control apparatus using open serial interface, operating method thereof, and data storage device therefor

A packet-optical integrated switch without an optical transponder, includes: a packet line card configured to output an Ethernet packet signal to a pre-set output port; a packet switch fabric configured to transfer the packet signal from the packet line card to the output port previously set in a destination address included in the packet signal; a 10 gigabit Ethernet (10 GbE)/optical transport unit level 2 (OTU2) integrated line card configured to convert the packet signal from the packet switch fabric into an OTU2 optical signal having a pre-set wavelength; and a wavelength selection switch fabric configured to allocate the optical signal from the 10 GbE/OTU2 integrated line card to a pre-set wavelength division multiplexing (WDM) port by pre-set wavelength to exchange the optical signal to each port by wavelength, wherein the packet line card, the packet switch fabric, the 10 GbE/OTU2 integrated line card, and the wavelength selection switch fabric perform the reverse operations of the process, respectively.

Packet-optical integrated switch without optical transponder

A recursive path computation method is disclosed to integratedly manage resources required for a computation of a data transmission path in a multi-layer transport network to enable automatic real time allocation of lower layer resources required for processing a path request when resources required for a path computation of each layer are not sufficient or when resources have not been previously allocated. A network path request service over multiple layers can be quickly performed, and utilization efficiency of network resources can be maximized.

Resource management and recursive path computation for real-time automatic path setup at multi-layer transport network

An apparatus for processing packets in a high speed router and a method thereof are provided. The high speed router includes a forward processor and a control processor where the forward processor having an input terminal processor and an output terminal processor. The output terminal processor manages a Layer 2 Address Table by dividing the Layer 2 Address Table into a layer 2 indirect address table and a layer 2 direct address table and by managing them. The indirect address table is directly indexed in the Next-hop Table of the input terminal processor table. The direct address table is composed of a hashing table for a destination IP address. Therefore, the system efficiency can be improved by reducing the memory which is used for storing the forwarding information table occupied by the forward processor and by reducing the IPC message between the control processor and the forwarding process.

Method and apparatus for processing packet in high speed router

A memory system with a flexible serial interface and a memory accessing method thereof are provided. The memory system includes at least one of memories and a memory controller. The memory controller flexibly sets up serial link connection with each of the memories through serial ports regardless of a physical location and an order of the serial ports. The memory controller also transmits and receives memory data in a serial mode through the serial link connection.

Growing community of inventors

Daejeon, South Korea

Bup Joong Kim