Abstract: A PAM-N receiver capable of adaptively adjusting threshold voltages determining a level of a received signal and a method of adaptively adjusting threshold voltages thereof are disclosed. According to the method of the present invention, the result of comparison between reference data levels and the level of data in the received signal are used to adjust the reference data levels, and the threshold voltages of a PAM-N receiver are adaptively calculated from the adjusted reference data levels, thereby reflecting transmission line conditions and Inter-Symbol Interference.

Abstract: Disclosed is a method of controlling a plurality of robot cleaners, the method including a first step of docking a first robot cleaner and a second robot cleaner with a first docking device and a second docking device, respectively, a second step of checking whether the first robot cleaner is undocked from the first docking device, and a third step of if the first robot cleaner docked with the first docking device again, undocking the second robot cleaner from the second docking device.

Abstract: A method of cleaning a wafer comprises: a scrubbing operation comprising treating a target wafer to be cleaned with a brush at a rotation rate of 200 rpm or less to prepare a brush cleaned wafer; and a cleaning operation comprising cleaning the brush cleaned wafer with a cleaning solution to prepare a cleaned bare wafer, wherein the cleaning operation comprises a first cleaning operation and a second cleaning operation sequentially.

Abstract: Disclosed is a high frequency beam forming device. The high frequency beam forming device includes a 2D radiation array structure unit in which oscillators coupled to antennas are arranged in 2D; and a plurality of phase difference detectors coupled between the oscillators formed in the 2D radiation array structure unit to detect a phase difference between the coupled oscillators.

Abstract: According to an embodiment, an antenna structure comprises a printed circuit board including an integrated circuit processing a radio frequency (RF) signal, a feeding line connected to the integrated circuit, and a feeding pad connected to the feeding line to transfer the RF signal and a conductive upper layer including an antenna slot pattern connected with the feeding pad through a waveguide and vertically opened to radiate or receive the RF signal. The conductive upper layer further includes an adjacent slot pattern around the antenna slot pattern.

Abstract: Disclosed herein are an apparatus for recognizing a user command using non-contact gaze-based head motion information and a method using the same. The method includes monitoring the gaze and the head motion of a user based on a sensor, displaying a user interface at a location corresponding to the gaze based on gaze-based head motion information acquired by combining the gaze and the head motion, and recognizing a user command selected from the user interface.

Abstract: A robot vacuum cleaner and a control method therefor are disclosed. A robot vacuum cleaner according to an embodiment of the present invention comprises an acceleration change sensor module and a distance sensor module. Each piece of detected information is transmitted to an obstacle-passing information calculation module. The obstacle-passing information calculation module uses each piece of transmitted information so as to calculate information about whether an obstacle is present on one side of the robot vacuum cleaner and information about whether the robot vacuum cleaner can pass the obstacle on the one side. When the inability of the robot vacuum cleaner to pass the obstacle on the one side is calculated, a power module is driven so that the robot vacuum cleaner avoids the obstacle. Therefore, the robot vacuum cleaner can be prevented from going on an obstacle such as a carpet.

Abstract: A robot cleaner and a control method thereof are disclosed. A robot cleaner, according to an embodiment of the present invention, comprises: a tilt sensor module; a distance sensor module; and a light amount sensor module. Each piece of sensed information is transmitted to a lifting information calculation module. The lifting information calculation module calculates information on whether the robot cleaner is lifted, by using each piece of the transmitted information. If it is calculated that the robot cleaner is lifted off a floor, a power module is stopped. In addition, if it is calculated that the robot cleaner is not lifted off the floor, the power module is driven. Accordingly, when a user lifts the robot cleaner, injuries to the user caused by operation of a drive module can be prevented.

Abstract: The present invention relates to a drying apparatus capable of regenerating an adsorbent used for drying using microwaves. The drying apparatus of the present invention is formed to include a microwave irradiation means configured to irradiate microwaves to the adsorbent in a plurality of reaction towers in which the adsorbent adsorbing moisture or carbon dioxide is embedded, and when regenerating the adsorbent, directly heats the adsorbent using microwaves, thereby shortening a heating time and securing a sufficient cooling time, resulting in the effect of reducing the amount of dry air consumed for cooling and further increasing the drying efficiency.

Abstract: A portable terminal case having a skin condition-measuring function is disclosed. The case includes a battery case; a bumper case coupled to the battery case; a moisture measurement unit for receiving moisture level information in the skin of a user from a moisture measurement sensor; a contact detection unit for receiving information on the presence or absence of a contact between the bumper case and the skin from a contact detection sensor; an environment measurement unit for receiving surrounding environment information from an environment information measurement sensor; and a control unit for collecting the moisture content and the environment information from the moisture measurement unit and the environment measurement unit.

Abstract: Disclosed is a rehabilitation training apparatus. The rehabilitation training apparatus includes a pair of first tracks formed parallel to each other along first axis, a second track disposed on the pair of first tracks, and moving along the first axis, and formed along second axis, a hand holder disposed on the second track, and moving along the second track, and on which at least one of hand and arm of a user is held, a stopper for a track disposed on the pair of first tracks for limiting a movement range of the second track, and a stopper for a holder disposed on the second track for limiting a movement range of the second pair of first tracks, wherein the first axis and the second axis are disposed with an inclination.

Abstract: A pegboard of the present disclosure includes: a main device including multiple unit modules; a board plate including multiple receiving portions; and multiple pegs to be inserted into the multiple receiving portions, and the multiple unit modules include multiple sensor modules configured to sense whether the multiple pegs are inserted into the multiple receiving portions and multiple light source modules configured to output light to the multiple receiving portions.

Abstract: According to an embodiment, a multi-layer antenna structure comprises a printed circuit board including an IC for processing an RF signal, a feeding line connected to the IC, and a feeding pad connected to the feeding line, a conductive lower layer tightly contacting the printed circuit board and including a feeding hole in an area connected with the feeding pad and vertically open and a waveguide connected to the feeding hole and disposed on an upper surface thereof, and a conductive upper layer tightly contacting the conductive lower layer and including an antenna slot pattern in an area corresponding to the waveguide and vertically open. The waveguide may include a bottom surface positioned lower than an upper surface thereof, a side surface extending from each of two opposite ends of the bottom surface to the upper surface, and a protrusion protruding upward from a center portion of the bottom surface.

Abstract: There is provided a video signal decoding method. The method comprises decoding block division information of a current block, dividing the current block into a plurality of sub blocks based on the block division information, and decoding the sub blocks.

Abstract: A backpack including a first backpack member provided on both sides thereof with shoulder straps, a second backpack member configured onto a rear surface of the first backpack member, and an auxiliary loading portion configured to fix the bottom surfaces of the first backpack member and the second backpack member to each other to enable the first backpack member and the second backpack member to be unfolded in opposite directions, and configured to be exposed outward from the first backpack member and the second backpack member, the backpack including a buckle for coupling at least both side portions of the first backpack member and the second backpack member to each other, wherein the auxiliary loading portion is formed by coupling a pair of panels to each other by a first hinge so as to be folded inward only, in which one of the pair of panels coupled by the first hinge is rotatably fixed to the first backpack member via a second hinge therebetween, and an opposite one of the pair of panels coupled by the f

Abstract: The present invention provides a backpack structure for easily loading a large item having column shape or “T”-shape that cannot be put into a storage space of a backpack.

Abstract: A finger-motion assisting apparatus. The apparatus includes a wearing part, a first cover extending from the wearing part to one side, first and second wires pulling the first cover, a pulley around which the first and second wires are wound, and a motor rotating the pulley. The first and second wires are arranged from a first point to a second point of the first cover along the extension direction of the first cover and arranged along at least part of a periphery of the first cover in opposite directions at the second point of the first cover.

Abstract: A method of cleaning a wafer comprises: a scrubbing operation comprising treating a target wafer to be cleaned with a brush at a rotation rate of 200 rpm or less to prepare a brush cleaned wafer; and a cleaning operation comprising cleaning the brush cleaned wafer with a cleaning solution to prepare a cleaned bare wafer, wherein the cleaning operation comprises a first cleaning operation and a second cleaning operation sequentially.

Abstract: Disclosed is a high frequency beam forming device. The high frequency beam forming device includes a 2D radiation array structure unit in which oscillators coupled to antennas are arranged in 2D; and a plurality of phase difference detectors coupled between the oscillators formed in the 2D radiation array structure unit to detect a phase difference between the coupled oscillators.

Abstract: The embodiments relate to an electrochromic device having excellent elongation and tensile strength while achieving an excellent light transmission variable function based on the electrochromic principle. The electrochromic device comprises a light transmission variable structure interposed between a first base layer and a second base layer, wherein the light transmission variable structure comprises a first chromic layer and a second chromic layer, an electrolyte layer is interposed between the first chromic layer and the second chromic layer, and the elongation is 60% to 170%.