Abstract: Disclosed is to provide a composition for skin-whitening or preventing or improving skin wrinkles, comprising a green tea extract which has modified amounts of ingredients. More specifically, the extract and composition according to one aspect of the present disclosure are derived from natural plants that cause less irritation to the skin and are eco-friendly, thus they are safe, and thereby the extract and composition can exhibit excellent effects of effectively inhibiting melanin production and tyrosinase activity and preventing or improving skin whitening, and can exhibit excellent effects of effectively inhibiting the expression of MMP-1 and preventing or improving skin wrinkles.

Abstract: An electronic device, according to various embodiments, may comprise: a power amplifier configured to amplify an input signal; an antenna module including at least one antenna and configured to transmit an RF signal amplified in a circuit of the power amplifier; and a communication processor including at least one processor, comprising processing circuitry, individually and/or collectively configured to control the power amplifier and the antenna module.

Abstract: An arithmetic apparatus includes a first operand holding circuit configured to output a first operand according to a clock signal, generate an indicator signal based on bit values of high-order bit data including a most significant bit of the first operand, and gate the clock signal based on the indicator signal, the clock signal being applied to a flip-flop latching the high-order bit data of the first operand; a second operand holding circuit configured to output a second operand according to the clock signal; and an arithmetic circuit configured to perform data gating on the high-order bit data of the first operand based on the indicator signal and output an operation result by performing an operation using a modified first operand resulting from the data gating and the second operand.

Abstract: A wireless power receiver may comprise: a power pick-up circuit configured to receive power wirelessly from a wireless power transmitter including a plurality of primary coils by magnetic coupling to the wireless power transmitter at an operating frequency and to convert an alternating current signal induced by the wireless power into a direct current signal; a communication/control circuit receiving the direct current signal supplied from the power pick-up circuit and including an in-band communication module which communicates with the wireless power transmitter by using the operating frequency, and an out-band communication module which communicates with the wireless power transmitter by using any frequency except for the operating frequency; and a load configured to receive the direct current signal supplied from the power pick-up circuit, wherein the communication/control circuit transmits a message informing of the start of power allocation negotiation, to other wireless power receivers by using the out

Abstract: An indoor unit for air conditioners includes a main body and a panel frame coupled to the main body. The main body includes a blower fan configured to generate air flow, and a heat exchanger configured to exchange heat with the air. The panel frame includes an air inlet forming an air supply passage to the main body and an air outlet forming a discharge passage for air discharged from the main body. A plurality of openings are provided in the panel frame. The plurality of openings are configured to be opened and closed by a plurality of doors. An electrical part comprising circuitry is placed on at least one of the plurality of openings.

Abstract: An air conditioner includes: a main body including a heat exchanger and a blower fan, a panel frame assembled to the main body, a grille panel positioned on one side of the panel frame, a blade arranged to be spaced apart from the grille panel by a specified distance and to be rotatable relative to the panel frame, an intermediate panel positioned between the grille panel and the blade, a plurality of first holes arranged in the intermediate panel and capable of discharging air delivered from the blower fan, and a plurality of second holes arranged in the blade and capable of discharging air delivered from the blower fan.

Abstract: An air conditioner includes: a housing including an air inlet and an air outlet, a heat exchanger provided inside the housing, a blower fan rotatably provided inside the housing, an ultraviolet (UV) light source provided inside the housing and configured to irradiate UV light toward the blower fan, a blade rotatable, relative to the housing, configured to be in an open position for opening the air outlet or in a closed position for blocking the air outlet, and a sensor configured to detect a position of the blade, and may be configured to selectively stop operation of the UV light source based on the position of the blade detected by the sensor.

Abstract: A composition may include an organic dye that reacts with a visible light and generates singlet oxygen, and an ionic liquid including an ion expressing a hydrophobic property. The ion expressing the hydrophobic property may have an opposite electric charge to an electric charge included by the organic dye in an ionized state. Other than the above, various embodiments are possible.

Abstract: An antenna structure according to an embodiment of the present disclosure includes a dielectric layer, and a plurality of antenna units arranged on a top surface of the dielectric layer. Each of the plurality of antenna units includes a radiator, a transmission line including a first transmission line and a second transmission line that extend in different directions to be connected to the radiator, an upper parasitic element adjacent to an upper portion of the radiator, and a lower parasitic element adjacent to a lower portion of the radiator and the transmission line. Feeding signals of different phases are applied to the first transmission line and the second transmission line.

Abstract: The present invention relates to an apparatus and a method for performing power calibration in a wireless power transmission system. The present specification provides a wireless power transmission apparatus comprising: a power conversion unit configured to transmit, in a power transfer phase, wireless power generated on the basis of magnetic coupling to a wireless power receiving device; and a communication/control unit configured to perform an initial calibration for a power parameter prior to the power transfer phase, receive a first received power packet from the wireless power receiving device indicating the power received by the wireless power receiving device during the power transfer phase, and detect foreign matter by using the received power and a first power loss determined on the basis of the initial calibration.

Abstract: A wireless power receiver may comprise: a power pick-up circuit configured to receive power wirelessly from a wireless power transmitter including a plurality of primary coils by magnetic coupling to the wireless power transmitter at an operating frequency and to convert an alternating current signal induced by the wireless power into a direct current signal; a communication/control circuit receiving the direct current signal supplied from the power pick-up circuit and including an in-band communication module which communicates with the wireless power transmitter by using the operating frequency, and an out-band communication module which communicates with the wireless power transmitter by using any frequency except for the operating frequency; and a load configured to receive the direct current signal supplied from the power pick-up circuit, wherein the communication/control circuit transmits a message informing of the start of power allocation negotiation, to other wireless power receivers by using the out

Abstract: The present specification relates to a device and a method enabling in-band communication and out-band communication between a wireless power transmission device and a wireless power receiving device. The present specification discloses a wireless power transmission device, a wireless power transmission method, a wireless power receiving device, a wireless power receiving method and a wireless power transmission system, whereby the existence or not of an inter-device communication connection history is checked using whitelist information of an out-band communication module, and when corresponding to a reconnection, out-band communication is connected, and data exchange for wireless power transmission is carried out via the out-band communication.

Abstract: The present invention relates to a device and a method for performing wireless power transfer on the basis of heterogeneous communication. Disclosed in the present specification is a wireless power receiving device comprising: a power pickup unit configured to receive wireless power from a wireless power transfer device by magnetically coupling with the wireless power transfer device at an operating frequency, and convert an alternating current signal generated by the wireless power into a direct current signal; a communication/control unit configured to receive the direct current signal from the power pickup unit, and perform an in-band communication using the operating frequency and/or an out-band communication using a frequency other than the operating frequency; and a load configured to receive the direct current signal from the power pickup unit.

Abstract: The present invention relates to an access control method and device in a wireless power transmission system. A wireless power transmission device comprises: a power conversion circuit configured to have a plurality of primary coils and transmit wireless power to a wireless power reception device by using the primary coil which has formed magnetic coupling to the wireless power reception device at an operating frequency; and a communication/control circuit configured to perform in-band communication with the wireless power reception device by using the operating frequency and perform out-band communication with the wireless power reception device by using a frequency other than the operating frequency, wherein the communication/control circuit can transmit information for notifying whether or not connection to the wireless power reception device is possible by using the out-band communication.

Abstract: A purification device is provided. The purification device includes an air filter and/or a light source module. The air filter has a multi-folded form. The air filter includes a first filter layer having electrostatic adsorption capability and/or a second filter layer stacked on one surface of the first filter layer. The second filter layer includes at least one first region including an ultraviolet photocatalytic material and at least one second region including a visible photocatalytic material. The light source module includes at least one ultraviolet light source facing a portion of the first region of the second filter layer and at least one visible light source facing a portion of the second region of the second filter layer.

Abstract: One aspect of the present disclosure relates to a pharmaceutical composition, containing (R)-N-[1-(3,5-difluoro-4-methanesulfonylamino-phenyl)-ethyl]-3-(2-propyl-6-trifluoromethyl-pyridin-3-yl)-acrylamide as a first ingredient and containing a vinylpyrrolidone-based polymer as a second ingredient. The composition of one aspect of the present disclosure has a formulation characteristic in which the crystal formation of a compound represented by chemical formula 1 is delayed for a long time.

Abstract: A refrigerator includes: a main body comprising a storage room; a door rotatably coupled to the main body and configured to open or close the storage room; and a water supply device on a rear surface of the door. The water supply device includes: a water supply case comprising a bucket installation space; a water level sensor configured to detect a water level of a water bucket in the bucket installation space; a first water supply port configured to supply water to the water bucket based on the water level of the water bucket that is detected by the water level sensor; a lever in the water supply case and configured to be manually operable; and a second water supply port configured to supply water based on operation of the lever by a user.

Abstract: An antenna structure according to an embodiment of the present disclosure includes an antenna unit array including a plurality of antenna units, and a parasitic element disposed to be adjacent to the antenna units and to be electrically and physically separated from the antenna units. Each of the antenna units includes a radiator, and a transmission line including a first transmission line and a second transmission line connected to the radiator in different directions. The parasitic element includes a first parasitic element disposed between the first transmission line and the second transmission line included in the same antenna unit, and a second parasitic element disposed between the first transmission line and the second transmission line included in different neighboring antenna units. The second parasitic element includes a branched portion including a first branched portion and a second branched portion bent in different directions.

Abstract: An antenna structure according to an embodiment of the present disclosure includes a dielectric layer and a plurality of antenna units arranged on a top surface of the dielectric layer. Each of the plurality of antenna units includes a radiator, a first transmission line and a second transmission line extending in different directions to be connected to the radiator, an upper parasitic element adjacent to an upper portion of the radiator, and a lower parasitic element adjacent to a lower portion of the radiator.

Abstract: The present invention relates to wireless power transmission. A method for controlling a communication connection for a wireless charging device supporting in-band communication and out-band communication, according to an embodiment of the present invention, may comprise: a step of receiving a first packet from a device through in-band communication; a step of generating a power transmission contract on the basis of the first packet; a step of performing an out-band communication connection on the basis of the power transmission contract; a step of controlling power by using out-band communication when the out-band communication connection is successful.