Abstract: A method for allocating a frequency to a subscriber station (SS) in handover operation in an Orthogonal Frequency Division Multiple Access (OFDMA) system. In the method, the SS checks safety channel frequencies for a target base station (BS), generates a safety channel frequency request message for requesting allocation of the checked safety channel frequencies, and transmits the safety channel frequency request message. Upon receiving the safety channel frequency request message from the SS, a serving BS allocates frequencies for a requested channel, and transmits an allocation message with the frequency allocation information to the SS. The serving BS transmits a channel allocation request message to the target BS according to the frequency allocation information. Upon receiving the channel allocation request message, the target BS allocates the safety channel frequencies to the SS.

Abstract: A method and apparatus for storing pattern matching data and a pattern matching method using the method and apparatus are provided. The method of storing original data for pattern matching in a pattern matching apparatus includes: dividing the original data into segments of a predetermined size; performing a hash operation on each of the divided segments; determining whether or not the hash operation value of each segment causes a hash collision with a hash operation value stored in a first external memory disposed outside the pattern matching apparatus; and controlling the hash operation value of each segment determined not to cause a hash collision to be stored in the first external memory. According to the method and apparatus, the original data desired to be used for pattern matching can be stored at a faster speed in a pattern matching data storing apparatus.

Abstract: A photoresist resin composition, a method for forming a pattern and a method for manufacturing a display panel using the photoresist resin composition are disclosed. The photoresist resin composition includes an alkali soluble resin, a photoresist compound, and a solvent, wherein the alkali soluble resin includes a first polymer resin represented by the following Chemical Formula 1, wherein, of R1, R2, R3, R4, R5 and R6, at least one is a hydroxyl group, at least two are methyl groups and any remaining groups are hydrogen, and of R7, R8, R9, R10 and R11, at least one is a hydroxyl group, at least two are methyl groups and any remaining groups are hydrogen.

Abstract: An apparatus is provided for transmitting uplink fast feedback information in a wireless communication system. In the apparatus, a channel encoder generates uplink fast feedback information to transmit, and outputs 3-bit codewords being set according to the fast feedback information. A noncoherent modulator modulates transmission symbols corresponding to the codewords using a noncoherent modulation scheme, and allocates the modulated transmission symbols to each of subcarrier bundles. An inverse fast Fourier transform (IFFT) unit IFFT-processes a transmission signal comprised of the subcarrier bundles before transmission.

Abstract: An apparatus and method for eliminating interference in a base station (BS) of a communication system. A first BS receives a first reception signal from a first mobile station located in a cell of the first base station. A second base station being adjacent to the first base station delivers decoding information of a second reception signal to the first base station, the second reception signal received from a second mobile station located in a cell of the second base station. The first BS determines whether an error exists on the second reception signal, based on the decoding information and re-generates an interference signal using the decoding information of the second reception signal when no error exists in the second reception signal, and performing interference elimination on the first reception signal using the re-generated interference signal.

Abstract: A method and apparatus for transmitting uplink acknowledge information (ACK) in a communication system using an orthogonal frequency division multiple access (OFDMA) scheme. The method includes receiving a data bit for the uplink ACK; outputting codewords corresponding to the data bit; performing quadrature phase shift keying (QPSK) modulation on symbols for ACK vector indexes corresponding to the codewords for the received data bit; performing inverse fast Fourier transform (IFFT) on a transmission signal having subcarrier clusters to which the modulated transmission symbols are allocated; and transmitting the IFFT-processed transmission signal.

Abstract: A photoresist composition includes a binder resin, a photo acid generator, an acryl resin having four different types of monomers, and a solvent.

Abstract: A method for texture synthesis for video coding with side information may be implemented by a decoder device. The method may include receiving seed texture at high fidelity. The method may also include receiving remaining portions of synthesized regions at low fidelity. The method may also include receiving marking of regions to synthesize. The method may further include synthesizing the marked regions based on the high-fidelity seed texture and the low-fidelity portions of the synthesized regions.

Abstract: The present invention relates to a method of forming a nanopattern, and, more particularly, to a method of continuously forming a nanopattern in a large area and a method of forming a nanopattern on a substrate having a roll shape, and a substrate having a pattern formed using the method. A method of relatively moving a specimen having a large area and a light source of interfering light and a method of performing exposure through the relative axial movement of the light source of interfering light and the substrate having a roll shape while the substrate having a roll shape rotates are used to avoid the problems occurring in the related art, such as a large space required for the equipment during the formation of nanopatterns, a limited output of a laser, and a limited degree of freedom in patterns.

Abstract: There is provided a method of detecting a polymorphic shell code. The decoding routine of the polymorphic shell code is detected from received data. In order for the decoding routine to access the address of an encoded code, the address of a currently executed code is stored in a stack, the value is moved in a register table, and it is determined whether the value is actually used for operating a memory. Emulation is finally performed and the degree of correctness of detection is improved. Therefore, time spent on detecting the polymorphic shell code and an overhead are reduced and the correctness of detection is increased.

Abstract: Enclosed are a signature string storage memory optimizing method, a signature string pattern matching method, and a signature matching engine. Signature is tokenized in units of substrings and the tokenized substrings are stored in an internal memory block and an external memory block to optimize a memory storage pattern. Therefore, matching of introduction data to signature patterns is effectively performed.

Abstract: A method of fabricating a semiconductor device includes forming a conductive layer on a semiconductor substrate, forming an insulating layer on the conductive layer, forming a word line and isolation trenches by patterning the insulating layer and the conductive layer, forming an isolation layer that fills the isolation trenches, forming a cell contact hole in the insulating layer such that the cell contact hole is self-aligned with the word line and exposes the word line, and forming a cell diode in the cell contact hole.

Abstract: The present invention relates to an apparatus and method for detecting malware. The malware detection apparatus and method of the present invention determines whether a file is malware or not by analyzing the header of an executable file. Since the malware detection apparatus and method can quickly detect presence of malware, it can shorten detection time considerably. The malware detection apparatus and method can also detect even unknown malware as well as known malware to thereby estimate and determine presence of malware. Therefore, it is possible to cope with malware in advance, protect a system with a program, and increase security level remarkably.

Abstract: Disclosed are a remote control system for a home appliance network and a method for operating the same. The system includes a wired and wireless Internet network; at least one home server for controlling and managing a home network connected to a plurality of home appliances; and a central portal server for updating an IP (Internet Protocol) address to a varied IP address to manage the home server whenever an IP address allocated to the home server for using the Internet network varies, and for exchanging data with the home server. The system and method enable the central portal server to manage a plurality of home servers and remotely control a plurality of home appliances connected to the home network by allowing the home server to transmit a key message containing a varied IP address so that an existing IP address stored in a database of the central portal server can be updated to a new IP address when a home server using a dynamic IP is connected to the central portal server.

Abstract: A space-time-frequency block coding apparatus and method in a transmitter with three transmit (Tx) antennas are provided. An input symbol sequence is transmitted through three Tx antennas according to a set method using feedback information received from a receiver or using a selected transmission matrix having regularities in order to improve the performance of an STFBC.

Abstract: An apparatus and method for transmitting uplink fast feedback information using a fast feedback channel in an orthogonal frequency division multiple access (OFDMA) communication system. A channel encoder selects information data for uplink fast feedback information, and determines a codeword from a pre-determined codeword set corresponding to the selected information data. A non-coherent modulator chooses transmission symbols by performing orthogonal modulation according to the determined codeword based on a predetermined modulation pattern, and maps the chosen symbols into sub-carriers. An inverse fast Fourier transform (IFFT) block performs an inverse fast Fourier transform (IFFT) on the mapped symbols and transmits the IFFT processed mapped symbols.

Abstract: A space-time-frequency block coding apparatus and method in a transmitter with three transmit (Tx) antennas are provided. An input symbol sequence is transmitted through three Tx antennas according to a permutation method using a selected transmission matrix in order to improve the performance of an STFBC.

Abstract: An apparatus and method for estimating a Signal to Interference plus Noise Ratio (SINR) in a wireless communication system are provided. The method includes processing a received signal by Orthogonal Frequency Division Multiplexing (OFDM) demodulation to convert the received signal into frequency-domain data, selecting ranging data from the frequency-domain data, multiplying the selected ranging data by a ranging code to perform code demodulation, calculating at least one norm value and at least one coherent norm value by bundle for the code-demodulated data and estimating an SINR using the calculated at least one norm value and at least one coherent norm value.

Abstract: A method and apparatus are provided for calculating a log-likelihood ratio (LLR) for decoding in a receiver for a mobile communication system, wherein the method and apparatus determine selection bits for distinguishing four quadrants in a constellation representing signal points of transmission symbols, determine domain bits for distinguishing the signal points in each domain of the four quadrants according to a modulation order of the transmission symbols, repeat an operation of dividing a received signal into a real component and an imaginary component according to the number of determined domain bits, calculate and origin-shift absolute values of the real component and the imaginary component, and calculate LLRs for the selection bits. Further, the method and apparatus can subsequently calculate LLRs for corresponding domain bits each time the origin-shifted received signal is received.

Abstract: An apparatus and method for full-diversity, full-rate space-time block coding in a transmitter using two Tx antennas are provided. An input symbol sequence is STBC-encoded in a predetermined method and transmitted through the two Tx antennas.