Abstract: Provided are a packet switch system in which an input module and an output module measure a buffer state and a packet delivery rate to control traffic, regardless of a size or a function of a switch fabric, and a traffic control method thereof. The packet switch system includes an input unit including a plurality of input modules, an output unit including a plurality of output modules, and a switch fabric including a plurality of switch components and configured to receive a packet delivered from the input unit and deliver the received packet to the output unit, wherein each of the input module includes: a plurality of virtual output queues (VOQs); and an access controller configured to selectively output packets stored in the plurality of VOQs in a weighted round robin (WRR) manner.

Abstract: Disclosed are an apparatus and method for transmitting/receiving image data. The method for transmitting image data includes classifying each pixel of image data into upper bits and lower bits, enabling the classified upper bits to be included in a payload of a Most Significant Bit (MSB) packet, and also enabling the classified lower bits to be included in a payload of a Least Significant Bit (LSB) packet, generating a header of the MSB packet and a header of the LSB packet, combining the payload and the header to respectively generate the MSB packet and the LSB packet, and transmitting the generated MSB packet and the LSB packet.

Abstract: Disclosed are an apparatus and method for transmitting/receiving image data. The method for transmitting image data includes classifying each pixel of image data into upper bits and lower bits, enabling the classified upper bits to be included in a payload of a Most Significant Bit (MSB) packet, and also enabling the classified lower bits to be included in a payload of a Least Significant Bit (LSB) packet, generating a header of the MSB packet and a header of the LSB packet, combining the payload and the header to respectively generate the MSB packet and the LSB packet, and transmitting the generated MSB packet and the LSB packet.

Abstract: Disclosed are an apparatus and method for transmitting/receiving image data. The method for transmitting image data includes classifying each pixel of image data into upper bits and lower bits, enabling the classified upper bits to be included in a payload of aMost Significant Bit (MSB) packet, and also enabling the classified lower bits to be included in a payload of a Least Significant Bit (LSB) packet, generating a header of the MSB packet and a header of the LSB packet, combining the payload and the header to respectively generate the MSB packet and the LSB packet, and transmitting the generated MSB packet and the LSB packet.

Abstract: When a call is attempted from a terminal that can transmit/receive data by connecting to different plurality of networks, a radio routing agent that is positioned at a core network selects an optimum wireless route from a plurality of wireless routes and provides the optimum wireless route based on an entire radio resource and a route state. Therefore, when a normal response is received by attempting a call to a call receiving terminal through the optimum wireless route that is selected by the radio routing agent, a call processing apparatus transmits the optimum wireless route to a terminal in which a call is attempted through a base station.

Abstract: When a call is attempted from a terminal that can transmit/receive data by connecting to different plurality of networks, a radio routing agent that is positioned at a core network selects an optimum wireless route from a plurality of wireless routes and provides the optimum wireless route based on an entire radio resource and a route state. Therefore, when a normal response is received by attempting a call to a call receiving terminal through the optimum wireless route that is selected by the radio routing agent, a call processing apparatus transmits the optimum wireless route to a terminal in which a call is attempted through a base station.

Abstract: Disclosed are an apparatus and method for transmitting/receiving image data. The method for transmitting image data includes classifying each pixel of image data into upper bits and lower bits, enabling the classified upper bits to be included in a payload of a Most Significant Bit (MSB) packet, and also enabling the classified lower bits to be included in a payload of a Least Significant Bit (LSB) packet, generating a header of the MSB packet and a header of the LSB packet, combining the payload and the header to respectively generate the MSB packet and the LSB packet, and transmitting the generated MSB packet and the LSB packet.

Abstract: Provided are a method and apparatus for transmitting/receiving data by using a multi-path. The multi-path is established between two transceivers, data is transmitted via each path at a predetermined time, a data receipt acknowledge control signal ACK of each path is received, and a path by which the data receipt acknowledge control signal ACK is not received is determined. Therefore, the path by which the data receipt acknowledge control signal ACK is not received is not used any further but data is transmitted via a path by which the data is previously transmitted, so that the data can be transmitted even if a line of sight (LOS) of the two transceivers comprising a directional antenna is blocked by a person or an obstacle.

Abstract: A pulse shaping filter for the .pi./4-shift QPSK modulator employed in IS-54 and JDC. The pulse shaping filter includes symbol determining circuits of the I-channel and the Q-channel, demultiplexers for inverse multiplexing each of the input signal value from the symbol determining circuits, a plurality of shift registers for shifting data from each of the demultiplexers according to odd and even symbol clock, a multiplexer for multiplexing each data from the shift registers to produce the corresponding address values, a plurality of ROM tables for storing the multiplexed address value, and a multiplexing and adding unit for multiplexing the address value stored in the ROM tables and adding the resulting multiplexed value.