Abstract: A wireless power transmitter includes a converter comprising at least one switching element, and configured to generate boosted input power; a resonator and a controller. The resonator is configured to receive the boosted input power as an alternating current (AC) power, and transmit a ping signal in a detection mode for determining whether any one or both of an external object approaching and a type of the external object. The controller is configured to control the switching element, and gradually increase a duty cycle of a gate signal provided to the switching element, in the detection mode.

Abstract: Disclosed are a three-phase wireless power transfer (WPT) system and three-phase wireless rechargeable unmanned aerial vehicle (UAV) system based on the same. Three power receiving coils, including resonators, are installed at the ends of three landing leg of the UAV. A three-phase power converter installed in the UAV receives the three-phase AC induction current induced in three power receiving coils, including resonators, converting the three-phase AC induction current into a DC current to be charged in a battery. A three-phase power wireless charging apparatus wirelessly transfers three-phase power from three power transmitting coils to the three power receiving coils of the UAV when the three landing legs land on three coil seating units provided on a charging platform. A magnetic flux leakage shielding coil may be provided to prevent magnetic flux leakage from approaching the UAV. The power transfer efficiency is excellent, and electromagnetic interference can be also reduced.

Abstract: An unmanned aerial vehicle includes a body portion, a plurality of driving portions, a plurality of arms and first and second landing members. The body portion is formed at a center thereof, and the body portion includes an inner space defined by an upper plate, a lower plate and a plurality of supporting frames that connect the upper plate with the lower plate. The plurality of driving portions generate an impellent force for a flight. Each of the plurality of arms has one end connected to the body portion and the other end connected to one of the driving portions.

Abstract: A method performed by a first image display apparatus includes: obtaining a 360-degree image; displaying, on a first display included in the first image display apparatus, a first image corresponding to a first area of the 360-degree image; controlling a second image display apparatus to display a second image corresponding to a second area of the 360-degree image, the second area being adjacent to the first area.

Abstract: An unmanned aerial vehicle includes a body portion, a plurality of driving portions, a plurality of arms and first and second landing members. The body portion is formed at a center thereof, and the body portion includes an inner space defined by an upper plate, a lower plate and a plurality of supporting frames that connect the upper plate with the lower plate. The plurality of driving portions generate an impellent force for a flight. Each of the plurality of arms has one end connected to the body portion and the other end connected to one of the driving portions.

Abstract: Disclosed is a vehicle door control technology such as a vehicle door control system. The vehicle door control system includes a communication unit configured to wirelessly communicate with a smart key or a portable terminal located around a vehicle, a controller configured to communicate with the smart key or the portable terminal using the communication unit, perform authentication on the smart key or the portable terminal based on a received signal, and output a door control signal for controlling a vehicle door when the authentication is successful, and a motor driver configured to lock or unlock the vehicle door according to the door control signal.

Abstract: Disclosed is a vehicle door control technology such as a vehicle door control system. The vehicle door control system includes a communication unit configured to wirelessly communicate with a smart key or a portable terminal located around a vehicle, a controller configured to communicate with the smart key or the portable terminal using the communication unit, perform authentication on the smart key or the portable terminal based on a received signal, and output a door control signal for controlling a vehicle door when the authentication is successful, and a motor driver configured to lock or unlock the vehicle door according to the door control signal.

Abstract: A battery pack including a battery cell having an electrode assembly of a cathode/separator/anode structure mounted in a battery case together with an electrolyte in a sealed state, and a protection circuit module (PCM) electrically connected to the battery cell. The PCM includes a protection circuit board (PCB) electrically connected to the battery cell, the PCB being provided on a region where a circuit is connected with a conductive pattern including a fusing part, having relatively high resistance, configured to fuse itself for interrupting the flow of current when a large amount of current is conducted.

Abstract: A flexible organic light emitting display and a method of fabricating the same are disclosed in which flexible organic light emitting display may be realized without a plastic based substrate, and at the same time an ideal WVTR characteristic level for stably driving an organic light emitting element without deterioration may be realized. The flexible organic light emitting display comprises a first ultra-thin film glass substrate that includes aluminum silicide; a thin film transistor (TFT) device arranged on the first ultra-thin film glass substrate; and an organic light emitting element arranged on the TFT element.

Abstract: Provided are a system for correcting a signal of an ultrasonic sensor according to a current weather condition, and a method of operating the same. The system for correcting a signal of an ultrasonic sensor according to a weather condition includes: a user terminal configured to externally acquire information about an ambient condition at a current position of a vehicle (for example, current temperature, and current humidity, and current atmospheric pressure) from an external server; and a vehicle terminal configured to calculate a current sound absorption coefficient based on the current ambient condition, determine whether a signal correction of the ultrasonic sensor mounted in the vehicle is needed by comparing the calculated current sound absorption coefficient with a preset standard sound absorption coefficient, and correct a received ultrasonic signal transmitted by the ultrasonic sensor and reflected from an obstacle based on a result determined by the vehicle terminal.

Abstract: Disclosed are an apparatus and a method for controlling a vehicle using a user terminal that authenticates a user terminal using an NFC module mounted in a vehicle and controls the vehicle using communication between the NFC module and the user terminal. An apparatus for controlling a vehicle using a user terminal includes: a terminal authenticator that authenticates a user terminal using any one module of wireless communication modules mounted in a vehicle; and a vehicle controller that controls the vehicle in a fit-type in accordance with the position of the any one module when the user terminal is authenticated.

Abstract: An apparatus for improving the aerodynamic characteristics of a vehicle includes a first vane configured to be rotatable on a wheel guard. An actuator is configured to provide the first vane with rotational force so as to rotate the first vane. A controller is configured to receive vehicle speed information and steering angle information of a steering wheel, and to control the operation of the actuator.

Abstract: There is provided an apparatus for driving a motor including: a converter applying an input voltage to each phase winding of the motor; and a processor controlling a phase current flowing to the phase winding to which the input voltage is applied to be increased or decreased in a preset reference range and controlling phase commutation of the motor based on a change in the phase current.

Abstract: A test device for testing a semiconductor device including a TSV may comprise a ring oscillator including a plurality of inverters, a switch selectively connecting an output node of an inverter of the plurality of inverters and the TSV, and a controller controlling the switch.

Abstract: A battery pack including a battery cell having an electrode assembly of a cathode/separator/anode structure mounted in a battery case together with an electrolyte in a sealed state, and a protection circuit module (PCM) electrically connected to the battery cell. The PCM includes a protection circuit board (PCB) electrically connected to the battery cell, the PCB being provided on a region where a circuit is connected with a conductive pattern including a fusing part, having relatively high resistance, configured to fuse itself for interrupting the flow of current when a large amount of current is conducted.

Abstract: A flexible organic light emitting display and a method of fabricating the same are disclosed in which flexible organic light emitting display may be realized without a plastic based substrate, and at the same time an ideal WVTR characteristic level for stably driving an organic light emitting element without deterioration may be realized. The flexible organic light emitting display comprises a first ultra-thin film glass substrate that includes aluminum silicide; a thin film transistor (TFT) device arranged on the first ultra-thin film glass substrate; and an organic light emitting element arranged on the TFT element.

Abstract: A generator includes: an upper housing and a lower housing; a water inlet and a water outlet provided in the upper housing; an impeller rotatably fixed inside the upper housing; a magnet provided in the lower housing, connected to a rotating shaft of the impeller, and rotated integrally with the impeller; and a bobbin positioned outside the magnet. A bearing through which the rotating shaft passes and a communication hole connecting a space for housing the impeller to a space for housing the magnet are disposed in an intermediate surface between the space for housing the impeller and the space for housing the magnet.

Abstract: An apparatus for improving the aerodynamic characteristics of a vehicle includes a first vane configured to be rotatable on a wheel guard. An actuator is configured to provide the first vane with rotational force so as to rotate the first vane. A controller is configured to receive vehicle speed information and steering angle information of a steering wheel, and to control the operation of the actuator.

Abstract: There is provided a motor driving apparatus comprising: a timer configured to output a time information; and a control unit configured to decrease a speed of a motor, after determining, based on the time information, that a driving time of the motor has elapsed for a predetermined period of time.

Abstract: A liquid crystal dispensing system includes a container to contain liquid crystal to be dispensed, a discharge pump to receive the liquid crystal from the container and to discharge the liquid crystal, a nozzle to dispense the liquid crystal discharged from the discharge pump onto a substrate, and a control unit to control a dispensing amount of liquid crystal discharged from the discharge pump and to compensate the dispensing amount when the dispensing amount of liquid crystal exceeds a limitation value.