Abstract: An intra prediction method and a device using the intra prediction method are provided. The intra prediction method includes the steps of: deriving a current prediction mode as a prediction mode of a current block; constructing neighboring samples of the current block with available reference samples; filtering the available reference samples; and generating predicted samples of the current block on the basis of the filtered available reference samples. The filtering step includes performing the filtering using the available reference sample located in the prediction direction of the current prediction mode and a predetermined number of available reference samples neighboring to the prediction direction of the current prediction mode.

Abstract: The present invention includes obtaining block type identification information on a partition of the current macroblock when the current macroblock is intra-mixed specifying a bock type of the current macroblock based on the block type identification information, obtaining an intra prediction mode of the current macroblock according to the block type of the partition of the current macroblock, and predicting the current macroblock using the intra prediction mode and a pixel value of a neighboring block.

Abstract: A cooling air circulating system for use in a refrigerator includes a blower installed at a substantially upper central portion of back of a freezer chamber, for supplying a cooling air from an evaporator into the freezer chamber, a first cooling air supplying duct for guiding a cooling air from the evaporator into a refrigerator chamber, the cooling air supplying duct downwardly, linearly extending from the blower to a substantially upper central portion of back of the refrigerator chamber and then being horizontally, linearly branched into a left and a right sides of the refrigerator chamber, a cooling air supplying device provided at the branched portion of the first cooling air supplying duct, for supplying the cooling air from the evaporator into the refrigerator chamber through the first cooling air supplying duct, and a second cooling air supplying duct for allowing the cooling air supplying device to supply the cooling air from the evaporator into the refrigerator chamber.

Abstract: A coil type condenser for a refrigerator holds a flow of air which cools the condenser by securing a condenser length enough to radiate heat and simultaneously holding enough pitch. In the coil type condenser, a pipe is wound spirally to face a blowing direction of cool air generated by a cooling fan of the refrigerator. The pipe includes a plurality of coils formed integrally each having upper and lower horizontal portions and left and right vertical sides, each of even numbered coils of the coils having a size different from that of each of odd numbered coils thereof. A support member welded to the pipe supporting the pipe. According to the condenser, since pitches between coils forming the coil type condenser are short, a suitable coil length of the condenser can be maintained in a narrow space. Thus, the coil type condenser can prevent an excessive pressure from generating when a compressor initially operates and can used for a small or medium refrigerator.