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.

Abstract: A display apparatus is disclosed, which includes a storage configured to store a plurality of code sets, a communicator configured to perform communication with a remote control apparatus having a microphone, an interface connected to an audio output apparatus and configured to transmit an audio signal to the audio output apparatus, and a processor configured to transmit one of the plurality of code sets to the remote control apparatus while the audio output apparatus is outputting the audio signal, and in response to an audio signal received at the remote control apparatus through the microphone being received from the remote control apparatus, determine whether the code set transmitted to the remote control apparatus is a code set capable of controlling the audio output apparatus by determining whether the audio output apparatus is outputting the audio signal based on the received audio signal.

Abstract: A simultaneous wireless information and power transmission method includes: transmitting an energy transfer signal comprising a peak-to-average power ratio (PAPR) corresponding to information to be transmitted at a first side; measuring the PAPR by receiving the energy transfer signal at a second side; and recovering the information from the measured PAPR at the second side.

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 compressor includes a motor which includes a stator assembly configured to include a stator in which a hollow is formed, a plurality of coils formed by a winding wound on the stator, and an insulator for insulating the stator from the coils, and a rotor inserted into the hollow, configured to rotate about a rotation axis. The rotor includes a plurality of poles, and a curvature radius of an outer circumference of a center part of the poles is different from a curvature radius of an outer circumference of an edge part of the poles. A method for fabricating a motor includes coupling a stator hook formed in a busbar assembly having a plurality of busbars to a hook engaging part formed in the stator assembly having the plurality of coils, and fusing a winding onto a folded plate connected to the plurality of busbars.

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: A pressure sensor and a pressure sensing method are provided. The pressure sensor includes a substrate; a sensor thin film transistor (TFT) disposed on the substrate and including a gate insulating layer, wherein the gate insulating layer includes an organic matrix in which piezoelectric inorganic nano-particles are dispersed; a power unit configured to apply an alternating current (AC) signal to a gate of the sensor TFT; and a pressure sensing unit configured to obtain a remnant polarization value based on a drain current which is generated in response to the AC signal and detected by the sensor TFT, and to sense a pressure based on the remnant polarization value.

Abstract: Disclosed herein is a method for preparing a multilayer of nanocrystals. The method comprises the steps of (i) coating nanocrystals surface-coordinated by a photosensitive compound, or a mixed solution of a photosensitive compound and nanocrystals surface-coordinated by a material miscible with the photosensitive compound, on a substrate, drying the coated substrate, and exposing the dried substrate to UV light to form a first monolayer of nanocrystals, and (ii) repeating the procedure of step (i) to form one or more monolayers of nanocrystals on the first monolayer of nanocrystals.

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: Disclosed herein are a motor assembly and a cleaner having the same. The motor assembly includes a rotor configured to rotate and a stator configured to electromagnetically interact with the rotor. The stator includes a pair of stator bodies disposed to be symmetrical to each other with the rotor in between, each stator body having at least two stator cores arranged in parallel to each other.