Abstract: There is provided a method of decoding an image, the method comprising: decoding information for motion information prediction of a current block from a bitstream, predicting motion information of the current block based on the information, refining motion information of the current block by using the decoded information and the predicted motion information of the current block and reconstructing the current block based on the refined motion information of the current block.

Abstract: Disclosed are an image encoding method using a skip mode and a device using the method. The image encoding method may comprise the steps of: judging whether there is residual block data of a prediction target block on the basis of predetermined data indicating whether residual block data has been encoded; and, if there is residual block data, restoring the prediction target block on the basis of the residual block data and an intra-screen predictive value of the prediction target block. Consequently, encoding and decoding efficiency can be increased by carrying out the encoding and decoding of screen residual data only for prediction target blocks where there is a need for a residual data block in accordance with screen similarity.

Abstract: An air compressor according to an aspect of the present invention comprises: a housing; a rotating shaft which is disposed in the housing; a compression unit which is connected to the rotating shaft to compress and discharge inlet air; a motor unit which drives the rotating shaft; a control board which controls the motor unit; and a filter unit which filters out noise from external power and supplies the external power to the control board, wherein the housing includes a first cooling flow channel for cooling the motor unit and a second cooling flow channel for cooling the filter unit, and the first cooling flow channel communicates with the second cooling flow channel.

Abstract: Air compressor in which the arrangement structure between a filter part and a discharge resistor reduces interference between the filter part and the discharge resistor and increases the space utilization of the filter part, making the air compressor more compact. The air compressor comprises a housing with a rotary shaft disposed inside it; a compression part connected to the rotary shaft which compresses and discharges introduced air; a motor part driving the rotary shaft; a control board for controlling the motor part, and the filter part which filters noise of external power and supplies the external power to the control board, wherein the filter part includes a capacitor assembly connected to an external power source, a transistor connected to the control board, a current sensor assembly connected to the transistor, and a discharge resistor connected to the capacitor assembly and discharges the residual charge in the capacitor assembly.

Abstract: A robot for generating multiple emotions is provided. The robot includes a sensor unit sensing external environment information, a database unit storing a predetermined list including information on types of behavior the robot is allowed, a user's reaction corresponding to each behavior of the robot, and favorite objects of the robot, a primary emotion generation unit generating an emotion corresponding to characteristics of the sensed information when the sensed information exceeds a predetermined threshold value, and a secondary emotion generation unit generating an emotion corresponding to characteristics of the sensed information based on the information sensed by the sensor unit, the list stored in the database unit, the amount of internal power of the robot, internal information on the robot indicating the existence of an operational error and an elapse of time.

Abstract: A robot for generating multiple emotions is provided. The robot includes a sensor unit sensing external environment information, a database unit storing a predetermined list including information on types of behavior the robot is allowed, a user's reaction corresponding to each behavior of the robot, and favorite objects of the robot, a primary emotion generation unit generating an emotion corresponding to characteristics of the sensed information when the sensed information exceeds a predetermined threshold value, and a secondary emotion generation unit generating an emotion corresponding to characteristics of the sensed information based on the information sensed by the sensor unit, the list stored in the database unit, the amount of internal power of the robot, internal information on the robot indicating the existence of an operational error and an elapse of time.