Abstract: A multi-dimensional remote control device which may be more effectively manipulated and a method of controlling an operation thereof are provided. The remote control device for controlling an electronic device may include a processor configured to activate an input interface provided on one surface from among input interfaces provided on at least one of multiple surfaces of the remote control device, to receive an input from the activated input interface, and to transmit the input to the electronic device via a communication interface.

Abstract: A display device includes a display, and a processor configured to receive environment setting information that is used to view content currently being displayed on the display, acquire metadata associated with the content displayed on the display, and generate a user's viewing environment by mapping the metadata to the environment setting information.

Abstract: A display apparatus and method are provided. The display apparatus includes a videotelephony performer that is configured to perform a videotelephony with another display apparatus; and a controller configured to control a corresponding feedback that is output when gestures and speech of a user and the other party of the videotelephony have a preset correlation during a process in which the videotelephony is performed.

Abstract: A refrigerator which variably controls operation of a sterilizer according to variation in humidity within the refrigerator to improve sterilizing capacity includes a control unit to drive the sterilizer while repeatedly turning the cold air circulation fan on/off during a refrigerating cycle in which the defrosting heater is not operated, and stop driving the sterilizer during operation of the defrosting heater.

Abstract: A display apparatus includes a communication interface configured to communicate with another display apparatus, a display configured to display contents being shared with the other display apparatus and a video call user interface (UI) for a video call with a user of the other display apparatus, and a processor, in response to at least one of a gesture and a voice of the user included in video call data received from the other display apparatus satisfying a predetermined condition, configured to control the display to change a size of the video call UI displayed on the display.

Abstract: A method and an electronic apparatus for providing a video call are provided. The electronic apparatus includes a communicator configured to perform a video call, a photographing unit configured to capture a front, a display configured to display an image captured by the photographing unit, and a processor configured to, in response to a designated user command being input while performing a video call, detect at least one person included in the image captured by the photographing unit, control the photographing unit to track and capture the detected person, and control the display to track and display the captured person.

Abstract: A display device is disclosed. The display device comprises: a display unit for displaying a content; a communication unit for receiving, by performing a communication with a user terminal device, information about a user activity performed in the user terminal device; and a control unit for generating user preference information on the basis of received information about the user activity and the attribute of the content to be displayed and providing a recommended content on the basis of the generated user preference information.

Abstract: Provided is a refrigerator including: a carbonated water tank in which carbonated water is stored; a water tank supplying filtered water to the carbonated water tank; a carbon dioxide cylinder supplying carbon dioxide to the carbonated water tank; and a controller, if the water level of carbonated water sensed by a water level sensor is less than or equal to a predetermined minimum water level, supplying the filtered water to the carbonated water tank, and if supply of the filtered water is completed, supplying the carbon dioxide to the carbonated water tank so as to produce the carbonated water. If it is expected that the storage amount of the carbonated water is reduced or the user won't use the carbonated water for a while, carbonated water is automatically produced so that the user is not required to wait while the carbonate water is produced.

Abstract: A refrigerator may include a carbonated water tank in which carbonated water is stored; a water tank supplying filtered water to the carbonated water tank; a carbon dioxide cylinder supplying carbon dioxide to the carbonated water tank; a dispenser discharging the carbonated water or the filtered water; and a controller, if the filtered water is supplied to the carbonated water tank and supply of the filtered water is completed, supplying the carbon dioxide to the carbonated water tank so as to produce the carbonated water, wherein the controller stops producing the carbonated water if a discharge instruction of the filtered water is input from a user or if a door of the refrigerator is opened while the carbonated water is produced.

Abstract: A display apparatus and a method of providing information thereof are provided. The information providing method of the display apparatus includes displaying image content, recognizing at least one of a user motion and a user voice to obtain information related to the image content while the image content is displayed, generating query data according to the recognized at least one of the user motion and the user voice, and transmitting the query data to an external server, and in response to receiving information related to the image content from the external server in response to transmitting the query data, providing the received related information.

Abstract: A user terminal device, a controlling method thereof, and a multimedia system are provided. The method of controlling a user terminal device including a display includes displaying a first image content on the display, detecting a touch gesture with respect to the user terminal device, controlling the user terminal device in response to the touch gesture being a single-touch gesture, and transmitting data for controlling a first external apparatus to the first external apparatus in response to the touch gesture being a multi-touch gesture.

Abstract: A display apparatus and method are provided. The display apparatus includes a videotelephony performer that is configured to perform a videotelephony with another display apparatus; and a controller configured to control a corresponding feedback that is output when gestures and speech of a user and the other party of the videotelephony have a preset correlation during a process in which the videotelephony is performed.

Abstract: A demand response (DR) system includes a DR control unit to generate different DR levels having different power rates for each power unit, and transmit a current DR level, and a household appliance to receive the DR level from the DR control unit, and differentially control energy output of a product in response to the received DR level so as to reduce power consumption of the product. As a result, the DR system reduces power consumption when power rates are high so as to reduce electricity bills.

Abstract: A demand response (DR) system includes a DR control unit to generate different DR levels having different power rates for each power unit, and transmit a current DR level, and a household appliance to receive the DR level from the DR control unit, and differentially control energy output of a product in response to the received DR level so as to reduce power consumption of the product. As a result, the DR system reduces power consumption when power rates are high so as to reduce electricity bills.