Abstract: A wireless power reception device may include a plurality of wireless power receiving units receiving power wirelessly, and a plurality of power management units respectively connected to the plurality of wireless power receiving units and outputting charging currents according to a plurality of power control signals by using power received from the plurality of wireless power receiving units.

Abstract: There is provided a wireless charging system, including: a wireless power transmitting module including at least one power transmitter transmitting power and at least one wireless power receiving module receiving the power, wherein the wireless power transmitting module controls the power, which is transmitted to the wireless power receiving modules corresponding to the power transmitters, from the power transmitters, depending on targeted voltage gains of the wireless power receiving modules corresponding to the power transmitters.

Abstract: There is provided a charging apparatus and a wireless charging apparatus that facilitate display of a fully charged state using a monochromatic display device. The charging apparatus and the wireless charging apparatus include a power supply unit supplying a charging power, a charging unit supplying the charging power to an external charging target device, a charging control unit controlling a charging state of the charging unit, a display unit that displays the charging state under the control of the charging control unit and, when the charging target device is in a fully charged state, stops an operation of displaying the charging state, and a delay unit that delays stopping the operation of the display unit that displays the charging state, for a previously set period of time, when the charging target device in the fully charged state is recharged.

Abstract: An apparatus for providing obstacle information in an autonomous mobile vehicle and a method thereof, in which a target object is determined to be what obstacle by combining pieces of information received from a laser distance sensor and radars, thereby enabling the autonomous driving of a vehicle. The apparatus and method for providing obstacle information in an autonomous mobile vehicle, which is capable of providing robust obstacle information not only in environments normal times, but also dust environments by combining a laser distance sensor and radars. A problem that an obstacle through which a mobile unit can pass, such as dust, is mistaken for an obstacle through which the mobile unit cannot pass can be solved.

Abstract: A wireless communication method may include receiving channel frequency information, detecting an unused channel not currently in use through reference to the channel frequency information, transmitting a request to send (RTS) signal including a frequency number and duration of the unused channel when the unused channel is detected, receiving a clear to send signal corresponding to the request to send signal and performing wireless communications using the unused channel.

Abstract: An apparatus for transmitting power wirelessly includes a power transmitter configured to transmit power wirelessly to an apparatus for receiving power wirelessly, and an identification information manager configured to transmit first identification information allocated to the apparatus for transmitting power wirelessly to other devices.

Abstract: A charging apparatus may include a power supply unit supplying charging power, a charging unit transferring the charging power from the power supply unit to an external charging target device, a charge controlling unit controlling a charging state of the charging unit, a display unit displaying the charging state according to controlling by the charge controlling unit and stopping a displaying operation when the charging target device is in a fully-charged state, and a delaying unit blocking a current supplied to the display unit and delaying the stopping of the displaying operation of the display unit for a preset time when the charging target device is recharged in the fully-charged state.

Abstract: A wireless power transmitting apparatus may include a power transmitting coil wirelessly transmitting power to an exterior thereof according to controlling, a power transmission controlling unit controlling the power transmitted through the power transmitting coil, and a protection unit blocking power induced through the power transmitting coil from the exterior thereof.

Abstract: A wireless power transceiver for wirelessly charging a battery of a portable terminal may include a body having a storage space, a power receiving module stored in the body and receiving power wirelessly from an exterior in a preset scheme to charge the battery, and a power transmitting module stored in the body and transmitting power wirelessly from the battery to an exterior in a preset scheme.

Abstract: Disclosed are a steering control device of an autonomous vehicle, an autonomous vehicle having the same, and a steering control method of an autonomous vehicle. The steering control method comprises receiving a position of an autonomous vehicle, and a first heading angle of the autonomous vehicle with respect to the north; calculating a second heading angle of the autonomous vehicle toward a tracking waypoint based on the position of the autonomous vehicle, and computing a rotation radius of the autonomous vehicle with respect to the tracking waypoint; calculating a yaw rate based on a speed of the autonomous vehicle and the computed rotation radius, and generating a steering command corresponding to the calculated yaw rate; and compensating for the steering command based on the first and second heading angles.

Abstract: Disclosed is apparatus for distinguishing between ground and an obstacle for autonomous mobile vehicle, comprising an upper 2D laser radar 1, a lower 2D laser radar 2, and a processing unit 10, the processing unit 10 comprising a distance data receiving part 11, an inclination calculating part 12, a ground and obstacle determining part 13, and a transmitting part. Also disclosed is a method for distinguishing between ground and an obstacle for autonomous mobile vehicle by using the apparatus for distinguishing between ground and an obstacle for autonomous mobile vehicle of claim 1, in which the detected object is determined as an obstacle when the actual inclination (g) of the detected object is larger than the reference inclination, and as ground when the actual inclination (g) of the detected object is smaller than the reference inclination.

Abstract: An apparatus for generating an electron beam is disclosed to reduce emittance of an electron beam. The apparatus includes: a housing including a rear portion where an electron beam is generated, a front portion having an electron beam discharge hole for discharging the electron beam to the exterior, and a side portion connecting the rear portion and the front portion, the side portion having a first hole and an opposite side portion, facing the first hole, having a second hole in order to reduce asymmetry of an electric field caused by the first hole; and a waveguide installed on the side portion to supply an electromagnetic wave to the interior of the housing through the first hole, wherein the electron beam is generated by laser incident to the interior of the housing and accelerated by the electromagnetic wave supplied to the interior of the housing.

Abstract: An apparatus and a method edit an image in a portable terminal, with the method including displaying one or more icons indicating stylus pen functions; when a highlighter icon corresponding to a highlighter function is selected among the displayed icons, displaying a text selected by a stylus pen in an image in a preset fluorescent color; and storing the displayed text in accordance with the fluorescent color.

Abstract: Disclosed are a calibration device, a calibration system and a calibration method. The calibration device includes a camera configured to capture image information, a laser sensor configured to capture image information, a laser sensor configured to detect distance information, and a calibration module configured to perform a calibration of the camera and the laser sensor by obtaining a relation between the image information and the distance information, wherein the calibration module includes a plane member disposed to intersect a scanning surface of the laser sensor such that an intersection line is generated, and disposed within a capturing range by the camera so as to be captured by the camera, and a controller configured to perform coordinate conversions with respect to the image information and the distance information based on a ratio between one side of the plane member and the intersection line, and based on a plane member image included in the image information.

Abstract: Disclosed is a wheel drive vehicle including a main body having a rotatable arm and an arm driving unit for driving the arm, a wheel rotatably mounted to the arm, respectively, and a sensing unit for sensing a non-contact state of the wheel from a ground, wherein the sensing unit includes a spring, first and second sensors, and a controller.

Abstract: The present invention relates to an apparatus for generating an electron beam, comprising: a cathode; a housing which has an opening formed at one side thereof such that the cathode is coupled to the opening, and which has a resonant cavity formed therein; and a gasket interposed between the cathode and the housing such that the gasket is compressed in accordance with the coupling strength between the cathode and the housing so as to shut off the resonant cavity from the outside.

Abstract: Disclosed is a wheel drive vehicle including a main body having a rotatable arm and an arm driving unit for driving the arm, a wheel rotatably mounted to the arm, respectively, and a sensing unit for sensing a non-contact state of the wheel from a ground, wherein the sensing unit includes a spring, first and second sensors, and a controller.

Abstract: An apparatus and method for generating femtosecond electron beam are disclosed. The apparatus for generating electron beam by discharging an electron generated via a cathode to an anode includes a transmission window provided at one side of the cathode to allow incident laser to pass therethrough, a pinhole formed on the anode such that the pinhole corresponds to the position of the electron generated from the transmission window, and a focusing unit provided at one side of the cathode and generating an electric field to accelerate and at the same time concentrate the electron to the pinhole. Electrons are simultaneously concentrated and accelerated to the pinhole by an electric field generated by the focusing unit positioned at the cathode to generate femtosecond electron beam.

Abstract: An apparatus for generating an electron beam is disclosed to reduce emittance of an electron beam. The apparatus includes: a housing including a rear portion where an electron beam is generated, a front portion having an electron beam discharge hole for discharging the electron beam to the exterior, and a side portion connecting the rear portion and the front portion, the side portion having a first hole and an opposite side portion, facing the first hole, having a second hole in order to reduce asymmetry of an electric field caused by the first hole; and a waveguide installed on the side portion to supply an electromagnetic wave to the interior of the housing through the first hole, wherein the electron beam is generated by laser incident to the interior of the housing and accelerated by the electromagnetic wave supplied to the interior of the housing.

Abstract: Disclosed are a steering control device of an autonomous vehicle, an autonomous vehicle having the same, and a steering control method of an autonomous vehicle. The steering control method comprises receiving a position of an autonomous vehicle, and a first heading angle of the autonomous vehicle with respect to the north; calculating a second heading angle of the autonomous vehicle toward a tracking waypoint based on the position of the autonomous vehicle, and computing a rotation radius of the autonomous vehicle with respect to the tracking waypoint; calculating a yaw rate based on a speed of the autonomous vehicle and the computed rotation radius, and generating a steering command corresponding to the calculated yaw rate; and compensating for the steering command based on the first and second heading angles.