Abstract: An apparatus for coding an image is provided to effectively code the image. The apparatus for coding the image includes an input image segmentation unit to segment an input image into a plurality of image blocks including a first image block and a second image block. The apparatus also includes a waveform information generation unit to select a plurality of reference pixels from among pixels included in the first image block, generate first waveform information about the first image block based on a pixel value difference between the selected plurality of reference pixels, and generate second waveform information about the second image block based on a pixel value difference between the pixels included in the second image block. The apparatus also includes a coding unit to code an image included in the second image block based on the first waveform information and the second waveform information.

Abstract: A network security state visualization scheme is suitable for collecting security events existing in a network, analyzing the security events, categorizing and contracting the analyzed security events into attack state information, and visualizing the attack state information as a three-dimensional (3D) screen to display the visualized information on a display panel. Unlike the related art where security events are expressed from the viewpoint of IPs, this scheme normalizes collected security event information, analyzes the normalized information, categorizes and contracts the analyzed information into the attack state information, extracts visualization target data, visualizes the visualization target data as the 3D screen, and displays the visualized 3D screen on the display panel.

Abstract: Disclosed are a secure communication method and system. In a wireless communication environment in which there is a wiretapper wiretapping a signal transmitted by a first transmitter to a first receiver, the secure communication method calculates a beamforming vector including first and second beamforming vectors based on channel information between the second transmitter and the first receiver and channel information between the second transmitter and a second receiver, and performs beamforming on the first and second receivers with the calculated beamforming vector. Accordingly, even when it is unable to know channel information of a wiretapper, the secure communication method can satisfy the minimum service-quality requirements of a secondary user and maximize a primary user's secure ability.

Abstract: Disclosed are a jig for measuring EMC of a semiconductor chip and a method for measuring EMC that can accurately measure the EMC at a semiconductor chip level. The jig for measuring EMC of a semiconductor chip according to the exemplary embodiment of the present disclosure includes: a chip mount unit on which the semiconductor chip for which the EMC is to be measured is mounted; a memory unit configured to store EMC information of components in a system in which the semiconductor chip is used; and a measurement control unit configured to extract the EMC information stored in the memory unit and provide the extracted EMC information to the chip mount unit at the time of measuring the EMC of the semiconductor chip.

Abstract: Disclosed herein is a network packet analysis technology that analyzes packet protocols without having preliminary information about the sequence of network packets, and is capable of analyzing the meanings of fields of each network packet, as well as the temporal sequence of the network packets, using pre-stored history sets. For this, the apparatus for analyzing network packets includes a history set generation unit for capturing and synchronizing network packets, input events and screen shots when an application is running, and then generating a plurality of history sets. A history set storage unit stores the plurality of history sets. A packet analysis unit analyzes the plurality of history sets stored in the history set storage unit and then analyzes a temporal sequence of the network packets and individual fields of each network packet.

Abstract: Disclosed is an overlay multicast system for a group media transmission application service composed of a multiple stream, wherein, when an additional stream is newly transferred to a predetermined node in an overlay network, the overlay multicast system transmitting a plurality of streams in the overlay network generates a multiple stream by muxing a main stream inputted from a parent node and the additional stream based on stream correlation information in the predetermined node, and transmits the generated multiple stream to a child node.

Abstract: Provided are an antenna apparatus for linearly polarized diversity antennas in a radio frequency identification (RFID) reader, and a method of controlling the antenna apparatus. The antenna apparatus includes: a plurality of linearly polarized diversity antennas disposed to have different directions to one another; a switching unit connecting the linearly polarized diversity antennas to the RFID reader; and a controller controlling the switching unit to selectively activate the linearly polarized diversity antennas.

Abstract: A control apparatus for use in wireless communications includes an antenna unit having antennas, the number of the antennas being equal to a maximum allowable number of connections in a specific frequency band; and a controller for receiving a connection request signal from each terminal attempting to connect to the control apparatus via the antenna unit, and transmitting and receiving a data signal to and from each terminal connected to the control apparatus by using a multiple-input-multiple-output scheme. The controller transmit and receive the data signal to and from each terminal connected to the control apparatus by obtaining a signal value of each antenna based on a predicted channel matrix and the number and types of terminals connected to the control apparatus via the antenna and separating the data signal for each terminal from the signal value according to the multiple-input-multiple-output scheme.

Abstract: There are provided an apparatus and method for vision processing on a network based intelligent service robot system and a system using the same. A robot can move to a target object, avoiding obstacles without helps of a robot server interfaced with a robot terminal over network, by extracting/processing three-dimensional distance information of external objects, using a stereo camera, a low price image processing dedicated chip and an embedded processor. Therefore, the intelligent robot can travel and move using only a stereo camera image processing without other sensors, and further provides users with various functional services with low expense.

Abstract: The apparatus for a redundant interconnection between multiple hosts and a redundant array of inexpensive disks (hereinafter, referred to as ‘RAID’), which is capable of supporting a fault tolerance of RAID controllers and simultaneously heightening a performance, comprises a plurality of RAID controlling units for processing a requirement of numerous host computers connected with one another through the industrial standard communication network and for fault tolerance; a plurality of connecting units for connecting the plurality of RAID controlling units to the numerous host computers; and a plural number of network interface controlling units respectively contained into the plurality of RAID controlling units, for exchanging information directly with an opposite network interface controlling unit provided within an opposite RAID controlling unit and the numerous host computers, through the plurality of connecting units.