Abstract: The present invention relates to a method and an apparatus for transmitting control and training symbols to improve transmission efficiency in a multi-user wireless communication system. The method for transmitting the control and training symbols in the multi-user wireless communication system according to one embodiment of the present invention comprises the steps of: determining whether a required transmission rate of each data can be satisfied through channel estimation in each of terminals when different data are simultaneously transmitted to each of the terminals; and transmitting a data frame to each of the terminals, the data frame being composed to discriminate the control and training symbols in each of the terminals using a combination of time, frequency, and code area when the required transmission rate of each data is not satisfied according to the determined result.

Abstract: A substrate processing apparatus includes: a conveyor belt configured to have an outer surface on which a bottom surface of a substrate is seated; and a polishing head unit configured to face an upper surface of the substrate, wherein the polishing head unit includes: a polishing head connected to a driver; a polishing pad configured to face the polishing head; a polishing pad fixing ring disposed between the polishing head and the polishing pad; and a temperature sensor configured to overlap the polishing pad fixing ring and to be spaced apart from the polishing pad fixing ring.

Abstract: A glass-reinforcing composition and method of using the same, the composition including 1 weight % to 20 weight % of hydrofluoric acid, 0.1 weight % to 5 weight % of ammonium fluoride, 1 weight % to 20 weight % of an inorganic acid, an organic acid, or 1 weight % to 10 weight % of an organic acid salt, and a remainder of water.

Abstract: Disclosed is a touch screen panel, including: a glass substrate including an active area and a non-active area; enhancement layers formed on upper and lower surfaces of the glass substrate; sensing patterns disposed on a surface of one of the enhancement layers in the active area; and sensing lines disposed in the non-active area, and electrically connected with the sensing patterns. Here, a side surface of the glass substrate may include a plurality of blunt areas depressed in a shape of a curved surface.

Abstract: A system for manufacturing a liquid crystal display includes a rotatable stage and a plurality of heads located on the rotatable stage. Each head is separated from each of its neighboring heads by a predetermined distance. The heads are enabled to rotate together with the rotatable stage in order to transport a tape carrier package (TCP). A first head retains the TCP and is located at a first position enabling the TCP to be detected. The first head is located at a second position enabling the first TCP to be pressed. The second position is different from the first position.

Abstract: A roll-fed system including a supply reel on which a continuum is wound, a cutter for separating a portion of the continuum from the continuum, a transferrer for transferring the continuum, and a plurality of supply controlling pulleys which are disposed between the cutter and a supply reel and move in opposed directions, wherein the continuum is alternately wound on each circumferential surface of the plurality of supply controlling pulleys and is transferred by the transferrer.

Abstract: A system for manufacturing a liquid crystal display includes a rotatable stage and a plurality of heads located on the rotatable stage. Each head is separated from each of its neighboring heads by a predetermined distance. The heads are enabled to rotate together with the rotatable stage in order to transport a tape carrier package (TCP). A first head retains the TCP and is located at a first position enabling the TCP to be detected. The first head is located at a second position enabling the first TCP to be pressed. The second position is different from the first position.