Abstract: A motor assembly includes an impeller inside a motor assembly housing, a motor including a rotor including a rotor shaft rotatable with the impeller and a pair of stators disposed facing each other across the rotor while electromagnetically interacting with the rotor to rotate the rotor shaft, and a motor housing inside the motor assembly housing that fixes the pair of stators relative to the rotor.

Abstract: A display device according to an embodiment of the present disclosure comprises: a display disposed on the front surface of the display device; a front camera for capturing a user located in front of the display device; a rear camera for capturing a wall surface positioned behind the display device; a sensor unit for measuring the distance between the display device and the wall surface; and a processor for determining a position of the user with regard to the captured image of the user, and for controlling the display to display an image corresponding to a partial area of the wall surface existing in the direction in which the display device is located with respect to the position of the user in the captured images of the wall surface.

Abstract: An electronic apparatus and a power controlling method thereof are provided. The electronic apparatus may include a wireless communicator that communicates with a remote controller, a wired communicator that connects with an external input device and a processor that controls the wireless communicator to transmit a control signal to the remote controller for turning off power of the connected external input device in response to receiving a signal from the remote controller for turning off power of the electronic apparatus.

Abstract: An electronic apparatus includes a storage configured to store a plurality of IR code sets corresponding to a plurality of external electronic apparatuses, a communicator configured to perform communication with at least one of the plurality of external electronic apparatuses and a remote control apparatus, and a processor configured to, in response to an operation corresponding to a test code included in one of the plurality of IR code sets being performed in the external electronic apparatus, determine an IR code set including the test code as an IR code set corresponding to the external electronic apparatus, and transmit, to the remote control apparatus, a command to map the determined IR code set to the remote control apparatus.

Abstract: A method of producing stretchable conductive nanofibers includes: providing stretchable nanofibers; providing a metal precursor solution by dissolving metal precursors in a solvent that may swell the stretchable nanofibers; bringing the stretchable nanofibers into contact with the metal precursor solution or its vapor for a sufficient time for the metal precursors to penetrate into the stretchable nanofibers; and reduce the metal precursors inside the stretchable nanofibers to metal nanoparticles.

Abstract: The present invention relates to a sink device and a power control method therefor. The sink device comprises: an HDMI reception unit connected to a source device and receiving a signal transmitted by the source device; and a processor for turning on the power of the sink device when a TMDS clock is received from the source device. Therefore, the power of the sink device is automatically turned on, thereby enabling user convenience to improve.

Abstract: A motor assembly having an internal channel passing an interior of a rotor, and a method for producing the same are provided. The motor assembly includes an adhesive flowing along the internal channel, and the rotor can be firmly coupled and improving durability and production efficiency of the rotor.

Abstract: Provided is a method of estimating a speed of a vehicle includes obtaining time domain acoustic data from an acoustic storage apparatus when the vehicle passes over a horizontally grooved road; calculating frequency domain acoustic data from the time domain acoustic data by using Fourier transformation; calculating, from the frequency domain acoustic data, a resonance frequency of sound generated between tires of the vehicle and horizontal groovings in the road; and estimating the speed when the vehicle passes over the horizontally grooved road by multiplying the resonance frequency by an interval of the horizontal groovings.

Abstract: Provided is a method of determining a recording time of an event data recorder (EDR) includes obtaining, from the EDR of a vehicle, main engine revolutions per minute (RPM) record data of which the recording time is unknown; obtaining, from an acoustic storage apparatus, time domain acoustic data including acoustic information of an event time of the vehicle; calculating frequency domain acoustic data from the time domain acoustic data by using Fourier transformation; calculating RPM estimation data of the vehicle of the event time from the frequency domain acoustic data by using order analysis; and determining whether a time when the EDR records the RPM record data is identical to the event time by comparing the RPM estimation data of the vehicle with the RPM record data.

Abstract: A method using energy harvesting including receiving, by a relay node, first information signals transmitted from a source node and second information signals transmitted from a destination node, harvesting, by the relay node, energy using energy signals transmitted from the source node while bi-directionally relaying the first information signals and the second information signals; receiving, by the source node, information signals transmitted by the relay node; and receiving, by the destination node, the information signals relayed by the relay node. The source node, the relay node, and the destination node are devices for performing communication in a full-duplex mode.

Abstract: Disclosed are a wireless power transfer apparatus, a wireless power receiving apparatus, a wireless power transfer method, a wireless power receiving method, a wireless power transfer system using a dual mode and a recording medium thereof.

Abstract: A motor assembly of the present disclosure improves a combined structure between an impeller and a rotor to more firmly combine them. Furthermore, the impeller is combined with a rotor shaft without deformation, so the durability of the respective components may be improved.

Abstract: A control method of an optical connector and a display apparatus is provided. More particularly, a control method of an optical connector and a display apparatus for changing output of audio according to combination of an optical cable and the optical connector may be provided. Some of the example embodiments provide a control method of an optical connector and a display apparatus which may output audio through one of an internal speaker and an external apparatus connected via an optical cable according to combination of an optical cable and an optical connector.

Abstract: A remote controller for controlling an external device by using voice recognition includes a microphone, at least one sensor, a communication interface, and a processor for controlling the microphone, the at least one sensor, and the communication interface, wherein the controller identifies a user utterance intention based on utterance intention information of the remote controller and utterance intention information of the external device, the utterance intention information of the remote controller being based on a state of the remote controller or an external state identified by the at least one sensor, and the utterance intention information of the external device being received from the external device through the communication interface, controls whether to supply power to the microphone according to a result of the identification of the user utterance intention, and controls the communication interface to transmit an electrical signal corresponding to a voice of user received through the microphone to

Abstract: Disclosed are uses of ginseng saponin, which contains at least 90% of a compound K, Rd, F2, and Rg3 as a main ingredient and has effects in extending the lifespan of the cell, promoting the cell differentiation, increasing the number of red blood cells, and reducing the triglycerides by extracting, heat-treating, and enzyme-converting the ginseng saponin to prepare active saponins Rd, F2, and Rg3 including a compound K.

Abstract: A display device is disclosed. A display device according to an embodiment of the present disclosure comprises: a display disposed on the front surface of the display device; a front camera for capturing a user located in front of the display device; a rear camera for capturing a wall surface positioned behind the display device; a sensor unit for measuring the distance between the display device and the wall surface; and a processor for determining a position of the user with regard to the captured image of the user, and for controlling the display to display an image corresponding to a partial area of the wall surface existing in the direction in which the display device is located with respect to the position of the user in the captured images of the wall surface.

Abstract: A vacuum cleaner having an improved structure capable of enhancing suction performance includes a suction unit provided in a main body, the suction unit including an impeller disposed to suck air by rotating about an axis thereof, and a diffuser disposed to guide air discharged from the impeller. The diffuser includes an inner casing, an outer casing disposed to be spaced apart from an outer circumference of the inner casing and to form a path through which the air discharged from the impeller flows, and a plurality of vanes disposed at the inner casing to guide the air discharged from the impeller to the path, and the plurality of vanes protrude toward the outer casing to cross at least a part of the path.

Abstract: Provided is a method of estimating velocity of a vehicle, in which at least one black box is installed, the method including: receiving acoustic information from the black box, the acoustic information being synchronized with time of a certain image; transforming the acoustic information of a time domain to frequency data of a frequency domain via fast Fourier transformation (FFT); calculating revolutions per minute (RPM) of a main engine from the frequency data by using order analysis; and calculating velocity of the vehicle at the time of the certain image by using the RPM of the main engine and vehicle information.

Abstract: A remote controller is provided. The remote controller includes a transmitter; a microphone configured to receive an audio signal output from an audio output apparatus; a communicator comprising communication circuitry configured to perform communication with a display apparatus connected to the audio output apparatus and to transmit the audio signal received through the microphone to the display apparatus; and a processor configured to control the transmitter to transmit to the audio output apparatus a signal for controlling a power of the audio output apparatus based on information indicating whether there is a test tone in an audio signal received by the microphone and received from the display apparatus.

Abstract: An electronic apparatus and a power controlling method thereof are provided. The electronic apparatus may include a wireless communicator that communicates with a remote controller, a wired communicator that connects with an external input device and a processor that controls the wireless communicator to transmit a control signal to the remote controller for turning off power of the connected external input device in response to receiving a signal from the remote controller for turning off power of the electronic apparatus.