Abstract: The method disclosed in the invention comprises setting a plurality of subcarrier position hypotheses for a received preamble according to a plurality of ideal subcarrier positions and the maximum amount of integer carrier frequency offset (ICFO), generating a plurality of preamble pattern hypotheses by retrieving the received preamble according to the subcarrier position hypotheses, calculating the correlation between the preamble pattern hypotheses and a plurality of specified preamble patterns, determining to which sector the received preamble belongs according to a correct preamble pattern, the specified preamble pattern having the highest correlation with the preamble pattern hypotheses, obtaining a correct subcarrier position according to the sector to which the received preamble belongs; and estimating the ICFO by calculating the offset between the correct subcarrier position and the subcarrier position hypothesis of the preamble pattern hypothesis having the highest correlation with the correct preamb

Abstract: There is provided an image compressing method, which comprises: partitioning a frame into a plurality of code blocks, each code block having consecutive coding passes; sequentially coding the code passes at each code block, wherein said coding at said each code block comprises: a) coding a first coding pass to produce code bits; b) calculating a rate of the code bits and a distortion; c) calculating a slope of the rate and the distortion; d) checking whether the calculated slope is smaller than a predetermined reference value; and e) if it is determined that the calculated slope is not smaller than the predetermined reference value, then coding the next coding pass and repeating step b) to step e).

Abstract: An ion-conducting, sulfonated and crosslinked copolymer for use in a fuel cell is disclosed. The ion-conducting, sulfonated and crosslinked copolymer is made up of four monomers. The first monomer is an aromatic diol. The second monomer includes two groups, each group capable of reacting with the hydroxy groups of the first monomer, and each group independently selected from a nitro group and a halogen group. The third monomer is one of the first monomer or the second monomer, except that one of the hydrogen atoms attached to a benzene ring is substituted with —SO3Y, where Y is selected from hydrogen (H), lithium (Li), sodium (Na), potassium (K) and trialkyl ammonium of the form HNR3 where R is an alkyl group having from 1 to 5 carbon atoms. The fourth monomer includes at least three groups, each independently selected from a hydroxy group, a nitro group, and a halogen group.

Abstract: This invention relates to impact sports, and to articles of clothing and for detection systems used to monitor and registering the intensity, location and sources of impacts in contact sports such as boxing, martial arts, fencing, and so forth.

Abstract: A polymer electrolyte membrane including a polysilsesquioxane group-containing copolymer and an ionic conductive polymer is provided. A method of preparing the polymer electrolyte membrane and a fuel cell including the polymer electrolyte membrane is also provided. The polymer electrolyte membrane has improved ion conductivity and an improved ability to suppress methanol crossover, and therefore can be used as an electrolyte membrane for a fuel cell, including a direct methanol fuel cell.

Abstract: An LED lamp includes a heat sink having a base and a plurality of LED module assemblies mounted on a top surface of the base of the heat sink. Each of the LED module assemblies includes a fixing bracket secured to the top surface of the base, an LED module mounted on a top surface of the fixing bracket and two heat pipes engaging with the fixing bracket and the heat sink. The fixing bracket includes a bottom plate attached on the top surface of the base, a top plate on which the LED module is attached and a connecting plate interconnecting the bottom plate with the top plate. The heat pipes thermally connect the bottom plate and the heat sink with the top plate.

Abstract: An apparatus and method for selecting an effective channel in a multi-user MIMO system are provided, in which a receiver receives pilot signals from a transmitter, determines channel information indicating an antenna offering the best quality among a plurality of antennas using the pilot signals, and generates feedback information with the channel information, and the transmitter receives feedback information from a plurality of receivers, generates a channel matrix using the feedback information, and transmits data simultaneously to the plurality of receivers using the channel matrix.

Abstract: A method for transmitting/receiving resource allocation information in a mobile communication system using a shared control channel. The transmission method includes performing scheduling for resource allocation to a plurality of terminals; generating, in a bitmap, information indicating allocation/non-allocation of resources which are not sequentially allocated beginning from a particular terminal using the scheduling result; and transmitting, over the shared control channel, resource allocation information including a terminal identifier and a resource allocation bitmap of each terminal.

Abstract: A bill recycle machine including a push plate exerting pressure on bills, which can apply separation pressure required for separating bills and also can be elevated upward and downward so as to prevent the push plate from being interfered with by a pickup roller when untaken bills is collected again. The bill recycle machine includes: a front plate forming a wall surface of a front side of a bill receiving space formed at a lower part of a shutter, a push plate which forms a first bill receiving space between the push plate and the front plate, a stack plate installed at an opposite side of the first bill receiving space, based on the push plate, so as to support bills stacked by a stack wheel; and a transfer plate forming a second bill receiving space between the transfer plate and the stack plate.

Abstract: A phase change memory device is presented that has a lower electrode contact that has a gradient resistance profile ranging from a lower resistive lower end to a higher resistive upper end. The phase change memory device includes a semiconductor substrate, a lower electrode contact, and a phase change pattern. The semiconductor substrate has a switching device. The lower electrode contact is formed on the switching device and has a specific resistance which gradually increases from a lower part to an upper part of the lower electrode contact. The phase change pattern layer is formed on the lower electrode contact.

Abstract: Provided is a lead pin for package boards including a disk-shaped head of which the diameter increases toward the middle portion thereof and that has a hexagonal vertical cross-sectional shape; and a connection pin that is formed so as to project from the center of the upper surface of the head.

Abstract: An overlay measuring apparatus includes a light source which generates visible light with a plurality of wavelengths, an optical module which selects visible light with a single wavelength from the visible light generated by the light source, makes the visible light with a single wavelength incident on a plurality of overlay patterns, and uses visible light reflected from the plurality of overlay patterns to project the overlay patterns with a predetermined color, an imaging unit which acquires images of the plurality of overlay patterns according to individual wavelengths of the visible light and acquires corresponding image signals, and a control unit which outputs a control signal to the optical module so that the optical module can project the overlay pattern with a specific color using information associated with the individual wavelengths of the visible light that is used to project the overlay pattern image selected by a selection unit.

Abstract: A reproducing apparatus and method includes a reproducing unit to reproduce mainstream data and sub audio data separately added in the mainstream data, wherein the reproducing unit comprises a counter used in reproducing the sub audio data. Accordingly, it is possible to more naturally reproduce still image data, such as a browsable slide show, to which sub audio data is additionally included, thus preventing an interruption in reproduction of the sub audio data even during a forward or reverse play.

Abstract: Disclosed is a cash transaction machine. The cash transaction machine includes a main body including a medium inlet formed on a side of a lower portion thereof and a medium outlet formed on a side of an upper portion thereof, and providing a paper medium fed from the medium inlet to the medium outlet, a transfer module including a driving device mounted on the main body, and a plurality of circulation transfer belts cooperating with the driving device and transferring the paper medium, the plurality of circulation transfer belts being extended to the lower portion of the main body via the medium inlet, and an auxiliary adapter including an adapter box directly or indirectly mounted on the lower portion of the main body, and a belt guidance shaft mounted on the adapter box and positioning an extra part of the circulation transfer belt in the auxiliary adapter.

Abstract: Disclosed are a method for connecting a bus bar of a capacitor, improving temperature characteristics and reliability of the capacitor by reducing inductance and impedance such that heat generation is restrained during use of the capacitor, and a product fabricated by the same. A pair of bus bars are insulatedly connected to sprayed surfaces on both sides of a plurality of capacitor devices, in such a manner that lead frames arranged alternately on a first bus bar are connected in contact with the sprayed surfaces facing in a diagonal direction, of neighboring capacitor devices. Other lead frames arranged alternately on a second bus bar are connected to the sprayed surfaces facing in another diagonal direction across the above diagonal direction in an X-shape. Then, the pair of bus bars are assembled to be insulated from each other and overlapped at one side of the capacitor device.

Abstract: Disclosed is a method for screening an antioxidant using mutant bacteria and chlorophyllide, and an antioxidant screened by the same method. The method provides for screening of an antioxidant by monitoring growth profiles of specific mutant bacteria in filter discs or medium blocks containing chlorophyllide added thereto, and an antioxidant screened by the same method. By monitoring growth profiles of mutant bacteria using mutant bacteria and chlorophyllide, screening of an antioxidant is possible on an industrial scale. In particular, the antioxidant screening method is useful for selective screening of an amphiphilic antioxidant. Therefore, it is possible to screen and commercialize low-toxic and effective antioxidants used in various food and cosmetic additives, as well as therapeutic medicines.