Abstract: A portable air purifier may include a housing provided with an inlet through which air is suctioned, a filter, and a fan module and forming an air flow path in a vertical direction, a discharge disposed at an outlet of the housing and configured to guide a discharge direction of air, a rotational supporter which is connected to the housing, movement of which is restricted, and which supports the discharge in a rotatable manner, and a rotational guide disposed respectively at the discharge and the rotational supporter and configured to guide rotation of the discharge to allow the discharge to rotate within predetermined angles.

Abstract: Disclosed are a filter fastening unit assembly and a filter fastening unit. The filter fastening unit assembly includes a filter, and a filter fastening unit, to which the filter is coupled, the filter fastening unit includes a base having a base opening opened toward a first direction that is one direction that is perpendicular to an upward/downward direction, a housing disposed in the base opening, connected to the base to be movable upwards and downwards, and having a housing opening opened toward the first direction, a filter coupling part coupled to an upper side of the base, and including an introduction passage, though which water is introduced, and a discharge passage, through which the water is discharged, and a lever connected to the base to be rotatable, and connected to the housing to be rotatable.

Abstract: The present disclosure relates to a crystallization method of branched-chain amino acids capable of sustainably cycling ammonia, and branched-chain amino acid crystal produced by the method.

Abstract: An electric compressor capable of reducing a size and lightening weight of a package of an inverter unit, as a common mode choke (CM choke) is disposed radially outside of a circuit board of the inverter unit, and a high voltage connector, a CM choke, and a low voltage connector are integrated into a support body.

Abstract: A shoe management device may have a housing having a body to define an inner space and a cover to open or close the body to allow access to the inner space. Agitators may be provided at a bottom of the body, which may be configured to hold shoes, and the agitators may remove foreign matter from the shoes. An upper portion of the body may have an air generator configured to blow air toward the shoes to remove foreign matter. In addition, moisture and germs inside the shoe may be removed by hot air, ultraviolet light, and plasma ions provided by a care assembly provided inside of the body and configured to be at least partially inserted into the shoes.

Abstract: Provided is an adhesive gel nail which includes a base film, an adhesive layer on the base film, a printed layer on the adhesive layer, an UV gel coating layer on the printed layer, an LED gel coating layer on the UV gel coating layer, and a highpoint glossy-top coating layer on the LED gel coating layer, and the highpoint glossy-top coating layer is formed by applying and drying a glossy-top coating solution in which a monomer, an oligomer, a cellulose, and a long-wavelength initiator are mixed.

Abstract: Provided is an adhesive gel nail which includes a base film, an adhesive layer on the base film, a printed layer on the adhesive layer, an UV gel coating layer on the printed layer, an LED gel coating layer on the UV gel coating layer, and a highpoint glossy-top coating layer on the LED gel coating layer, and the highpoint glossy-top coating layer is formed by applying and drying a glossy-top coating solution in which a monomer, an oligomer, a cellulose, and a long-wavelength initiator are mixed.

Abstract: A method for operation of an electronic device and an electronic device are provided. The method includes determining if an object is detected at a first terminal and a second terminal among a plurality of terminals of an ear jack. If the object is detected, the impedance of the second terminal is calculated, and a type of the object is determined according to the calculated impedance.

Abstract: A method for operation of an electronic device and an electronic device are provided. The method includes determining if an object is detected at a first terminal and a second terminal among a plurality of terminals of an ear jack. If the object is detected, the impedance of the second terminal is calculated, and a type of the object is determined according to the calculated impedance.

Abstract: A method for operation of an electronic device and an electronic device are provided. The method includes determining if an object is detected at a first terminal and a second terminal among a plurality of terminals of an ear jack. If the object is detected, the impedance of the second terminal is calculated, and a type of the object is determined according to the calculated impedance.

Abstract: An audio device connected to an electronic device is provided. The audio device connected to an electronic device includes an audio side connector comprising a microphone terminal that outputs a microphone signal to the electronic device, at least one audio terminal that receives an audio signal from the electronic device, an active noise cancelling (ANC) terminal, and a ground terminal, an ANC block that is driven by power input from the electronic device to remove noise around the audio device, an ANC power source unit that is provided in the electronic device and applies power input via the ANC terminal to the ANC block as drive power, and an on/off switch unit that controls the ANC power source unit, wherein the ANC terminal is included in any one of the areas of the microphone terminal, the audio terminal, and the ground terminal.

Abstract: An apparatus and method for supplying power to an audio device is provided. An electronic device includes an audio device connector comprising a microphone terminal configured to receive an audio signal of a microphone from an audio device, at least one audio terminal configured to output the audio signal to the audio device, a ground terminal, a power supply unit configured to selectively generate one of a first power and a second power to be supplied to the audio device through the microphone terminal, and a controller configured to identify whether the audio device has a type that includes an additional function unit based on a voltage at the microphone terminal, and to control the power supply unit to apply one of the first power and the second power to the microphone terminal correspondingly to the type of the audio device.

Abstract: An audio device connected to an electronic device is provided. The audio device connected to an electronic device includes an audio side connector comprising a microphone terminal that outputs a microphone signal to the electronic device, at least one audio terminal that receives an audio signal from the electronic device, an active noise cancelling (ANC) terminal, and a ground terminal, an ANC block that is driven by power input from the electronic device to remove noise around the audio device, an ANC power source unit that is provided in the electronic device and applies power input via the ANC terminal to the ANC block as drive power, and an on/off switch unit that controls the ANC power source unit, wherein the ANC terminal is included in any one of the areas of the microphone terminal, the audio terminal, and the ground terminal.

Abstract: A method for operation of an electronic device and an electronic device are provided. The method includes determining if an object is detected at a first terminal and a second terminal among a plurality of terminals of an ear jack. If the object is detected, the impedance of the second terminal is calculated, and a type of the object is determined according to the calculated impedance.

Abstract: A method of operating an electronic device is provided. The method includes detecting a knock on a predetermined area of the electronic device, analyzing a pattern of the detected knock, and performing a function associated with the analyzed pattern.

Abstract: An apparatus and method for supplying power to an audio device is provided. An electronic device includes an audio device connector comprising a microphone terminal configured to receive an audio signal of a microphone from an audio device, at least one audio terminal configured to output the audio signal to the audio device, a ground terminal, a power supply unit configured to selectively generate one of a first power and a second power to be supplied to the audio device through the microphone terminal, and a controller configured to identify whether the audio device has a type that includes an additional function unit based on a voltage at the microphone terminal, and to control the power supply unit to apply one of the first power and the second power to the microphone terminal correspondingly to the type of the audio device.

Abstract: Disclosed are an inverter, a NAND gate, and a NOR gate. The inverter includes: a pull-up unit constituted by a second thin film transistor outputting a first power voltage to an output terminal according to a voltage applied to a gate; a pull-down unit constituted by a fifth thin film transistor outputting a ground voltage to the output terminal according to an input signal applied to a gate; and a pull-up driver applying a second power voltage or the ground voltage to the gate of the second thin film transistor according to the input signal.

Abstract: Disclosed are an inverter, a NAND gate, and a NOR gate. The inverter includes: a pull-up unit constituted by a second thin film transistor outputting a first power voltage to an output terminal according to a voltage applied to a gate; a pull-down unit constituted by a fifth thin film transistor outputting a ground voltage to the output terminal according to an input signal applied to a gate; and a pull-up driver applying a second power voltage or the ground voltage to the gate of the second thin film transistor according to the input signal.

Abstract: A method for outputting audio data through an external device while preventing the generation of noise, and a portable terminal for the same are provided. The method for outputting audio data through the external device by the portable terminal includes identifying a connection voltage applied to a connection resistor included in the external device when a connection of the portable terminal to the external device is sensed, identifying a device code corresponding to the connection voltage, determining whether the external device is an audio output device according to the device code, and connecting a Universal Serial Bus (USB) interface, which is to be connected to the external device, to a ground (GND) for audio output if the external device is the audio output device.

Abstract: Disclosed are an inverter, a NAND gate, and a NOR gate. The inverter includes: a pull-up unit constituted by a second thin film transistor outputting a first power voltage to an output terminal according to a voltage applied to a gate; a pull-down unit constituted by a fifth thin film transistor outputting a ground voltage to the output terminal according to an input signal applied to a gate; and a pull-up driver applying a second power voltage or the ground voltage to the gate of the second thin film transistor according to the input signal.