Abstract: A method and system for wireless charging using a radio wave. The method includes scanning a radio wave of an access point, determining an available charging frequency band among frequency bands, sending the access point a request for transmitting a charging radio wave at the charging frequency band, and switching power output from an antenna, to a battery circuit.

Abstract: A refrigerator includes a body provided with a freezing compartment, a refrigerating compartment and an ice making compartment provided in the refrigerating compartment; an ice making unit including an ice making tray to produce ice in the ice making compartment; an ice storage container to store the ice made by the ice making unit; and a refrigerant pipe protruding from an interior wall of the body to supply cooling energy to the ice making compartment. A drainage duct is disposed between the ice making unit and the ice storage container adapted to prevent water drops from the ice making unit falling into the ice storage container. The drainage duct include at least one fixer configured to push the refrigerant pipe to a lower surface of the ice making tray to contact the refrigerant pipe with the lower surface of the ice making tray.

Abstract: An ice making unit and a refrigerator having the same are discussed. The refrigerator includes an ice making unit arranged in the ice making compartment, to produce ice, and a refrigeration cycle comprising a refrigerant pipe to supply cooling energy to the ice making compartment. Air present in the ice making compartment is cooled while undergoing direct heat exchange with at least one of the ice making unit and the refrigerant pipe.

Abstract: A refrigerator capable of supercooling a target object and a control method thereof are provided. The refrigerator includes a temperature sensor which senses a temperature of the target object in the cooling compartment, wherein the temperature sensor is prevented from being in contact with ambient cool air and is installed on a bottom surface on which the target object is placed so as to sense only the temperature of the target object. Further, the control method includes sensing a temperature of the target object at each interval of a specified time ?t, calculating a difference between two temperatures sensed at specified time intervals, and comparing the difference between two temperatures with a predetermined reference value ?Tc to determine the supercooled state of the target object.

Abstract: A key input apparatus for a portable apparatus includes a display unit that displays a key selected by a user input. The apparatus includes a light sensor comprising a plurality of light emitting elements and a plurality of light receiving elements. The respective light emitting elements generate first light signals upward at a predetermined angle from a direction in which the light emitting elements face the light receiving elements. The apparatus also includes input detection unit that detects the light receiving elements that receive the first light signals, and detects a user's space input position using the light receiving elements that receive the first light signals if the light receiving elements that receive the first light signals are detected.

Abstract: A microfluidic-based lab-on-a-test card is described. The test card is used with a point-of-care (POC) analyzer. The test card is designed to receive a sample and then, with the use of the POC analyzer, quantify or count a particular substance in the sample. The test card may be comprised of multiple layers. In one embodiment, the test card includes a primary separation chamber with a filtration surface, a trapping channel, and a particle detector. The test card may also include a nanowire sensor.

Abstract: Disclosed is a method for adjusting a ring tone volume in a mobile communication terminal. The method implements a function by which a user can directly adjust the ring tone volume in a mobile communication terminal in consideration of circumstances. To this end, the present invention includes a user interface screen by which a user can adjust the output volume level of the ring tone which rings according to the passage of time. Thus, the present invention provides a user interface screen by which a user can adjust the output volume level of a ring tone which rings according to the passage of time, and enables the user to set the output level of the ring tone and the output time of the ring tone at a corresponding level according to predetermined intervals through the screen.

Abstract: Methods for using nanowire sensors are described. In one embodiment, the nanowire sensor may be field effect transistor having a nanowire and a functionalized control electrode. One method of using such a nanowire sensor includes exposing the functionalized control electrode to a test sample and an enhancing reagent. In another embodiment, the nanowire sensor may be a field effect transistor having a gate electrode and a functionalized nanowire. One method of using such a nanowire sensor includes exposing the functionalized nanowire to a test sample and an enhancing reagent. The use of an enhancing reagent increases the sensitivity of the nanowire sensor to a substance to be detected or quantified.

Abstract: Disclosed are a user input device and a method for rapidly selecting an operation mode in a mobile terminal having a touch screen input panel and a fingerprint recognition sensor. The user input method includes setting operation modes for at least one fingerprint data and input pattern, each comprised of keys necessary to implement a corresponding operation mode; detecting fingerprint data inputted from the fingerprint recognition sensor, and confirming an operation mode set for the inputted fingerprint data; and displaying an input pattern corresponding to the confirmed operation mode on the touch screen input panel.

Abstract: A method and system for wireless charging using a radio wave. The method includes scanning a radio wave of an access point, determining an available charging frequency band among frequency bands, sending the access point a request for transmitting a charging radio wave at the charging frequency band, and switching power output from an antenna, to a battery circuit.

Abstract: Disclosed is an audio/video data synchronization apparatus for directly transmitting decoded audio/video data to an external device, without compressing the data, using UWB communication. The apparatus synchronizes video and audio data stored in a terminal without compressing the data and simultaneously transmits the data to an external device using UWB communication, so that users can enjoy high-quality images and sounds. In addition, the receiving end does not necessarily incorporate a separate function for decoding moving images, because it receives uncompressed video/audio data. This makes the apparatus simple and convenient.

Abstract: Disclosed herein are a refrigerator and a defrost control method thereof that are capable of sensing an amount of frost formed on an evaporator based on a change amount of absolute humidity in the refrigerator to control a defrost operation. A defrost control method of a refrigerator including a storage chamber and an evaporator to cool the storage chamber, includes sensing absolute humidity in the storage chamber, determining an estimated amount of frost formed on the evaporator using time segments in which the absolute humidity in the storage chamber decreases, and controlling a defrost operation based on the estimated amount of frost. According to the present embodiments, it is possible to perform the defrost operation at the point of time for optimum defrost, thereby maximizing energy efficiency and cooling efficiency.

Abstract: A refrigerator and an ice-making system thereof, which may maximize space utilization inside a storage compartment. To this end, an ice-making device is horizontally wide and vertically thin, and an ice discharge port of a dispenser unit is oriented obliquely or parallel to a surface of a storage compartment door to reduce the thickness of the dispenser unit. An icemaker and an ice storage container to receive ice made by the icemaker are horizontally arranged parallel to each other within the ice-making device. A transfer channel is formed in an inner foamed portion of the storage compartment door to maximize space utilization inside the storage compartment and door shelves.

Abstract: A refrigerator includes an ice making unit. The refrigerator also includes a refrigeration cycle including a refrigerant pipe to supply cooling energy to an ice making compartment, and a fixing member to fix a first portion of the refrigerant pipe, at least a second portion of the refrigerant pipe supported by and inserted into the ice making compartment.

Abstract: A control method of a refrigerator to prevent frost from being formed in an ice making chamber. The refrigerator includes an ice making chamber refrigerant pipe to supply a refrigerant to make ice in a direct cooling manner and an ice making chamber circulation fan to create a forced air stream to circulate air in the ice making chamber. The control method includes determining whether temperature of the ice making chamber is lower than a predetermined temperature and driving the ice making chamber circulation fan in a state in which the temperature of the ice making chamber is lower than the predetermined temperature and the refrigerant flows in the ice making chamber refrigerant pipe or when flow of the refrigerant in the ice making chamber refrigerant pipe is interrupted in a state in which the temperature of the ice making chamber is lower than the predetermined temperature.

Abstract: An ice making unit and a refrigerator having the same are discussed. The refrigerator includes an ice making unit arranged in the ice making compartment, to produce ice, and a refrigeration cycle comprising a refrigerant pipe to supply cooling energy to the ice making compartment. Air present in the ice making compartment is cooled while undergoing direct heat exchange with at least one of the ice making unit and the refrigerant pipe.

Abstract: A refrigerator including a refrigeration cycle including a refrigerant pipe to supply cooling energy to an ice making compartment, an ice making tray, on which at least a portion of the refrigerant pipe is seated, a drainage duct to collect condensed water falling from the ice making tray or from at least a portion of the refrigerant pipe, and to drain the collected water, and at least one fixer to fix at least a portion of the refrigerant pipe to the ice making tray. The fixer is protruded from the drainage duct.

Abstract: A refrigerator and a method to control the same are provided. The refrigerator includes a body having a supercooling compartment, a cooling unit to provide cool air to the supercooling compartment, an electromagnetic radiation sensor to detect electromagnetic radiation emitted when a food placed in the supercooling compartment begins to freeze, an energy supply to apply energy to the food placed in the supercooling compartment to prevent freezing of the food, and a controller to receive a detection signal from the electromagnetic radiation and then to activate the energy supply. Electromagnetic radiation emitted from each beverage in a supercooled state when the beverage begins to freeze is detected and energy is applied to the beverage according to the detection.

Abstract: An icemaker unit and a refrigerator having the same. A drainage duct is provided to the icemaker unit, including a longitudinally inclined structure, a laterally inclined structure, and drainage holes to enhance drainage of the water. An upper part of the drainage duct is formed of a high heat-conductivity material and a lower part of the drainage duct of a low heat-conductivity material.

Abstract: Disclosed herein are an ice maker and a refrigerator having the same. The ice maker includes an ice making tray including a plurality of ice making cells, a driving unit to rotate the ice making tray, a plurality of blades corresponding to the plurality of ice making cells to block the ice cubes made in the ice making cells and thus twist the ice making tray while removing the ice cubes from the ice making cells when the ice making tray is rotated, and a protrusion formed on the ice making tray to assist the removal of the ice cubes from the ice making cells. The ice maker removes the ice cubes from the ice making tray by a twisting-type deicing process using the plurality of blades and the protrusion.