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: Proposed is a method for performing wireless communication by a first device. The method may comprise a step of: transmitting a physical sidelink shared channel (PSSCH) through a resource selected in a first time area to a second device; receiving a physical sidelink feedback channel (PSFCH) related to the PSSCH from the second device; and on the basis that the interval between the first time area and a second time area is larger than a preconfigured threshold value, selecting a resource in the second time area to retransmit the PSSCH to the second device. For example, the first time area may precede the PSFCH. For example, the second time area may follow the PSFCH.

Abstract: A vacuum adiabatic body includes: a first plate, a second plate, a sealing part sealing the first plate and the second plate to provide a third space, a supporting unit maintaining the third space, and a heat resistance unit for decreasing a heat transfer amount between the first plate and the second plate. The second plate may include a front part and a side part having a different extending direction from the front part, and the side part defines at least one portion of a wall for the third space.

Abstract: The present embodiment includes a plurality of panels; a plurality of fastening jigs respectively fastened to the plurality of panels; and an assembly machine moving each of the plurality of fastening jigs in an oblique direction to gather the plurality of panels to be arranged in a vertical direction and a horizontal direction or to separate the plurality of panels in the vertical direction and the horizontal direction.

Abstract: A scroll compressor includes a plurality of fixing protrusions that are provided spaced apart from each other in a key that constitutes an Oldham ring, and an orbiting scroll, to which the key is coupled, or a ring body of the Oldham ring may be provided with a plurality of fixing grooves which are spaced part from each other and into which the plurality of fixing protrusions are respectively inserted and fixed.

Abstract: Provided are a method for a first apparatus for communicating wirelessly and an apparatus supporting the method. The method comprises the steps of: receiving a message, from a second apparatus, comprising second apparatus location data and second apparatus identifier-related data; receiving, from the second apparatus, sidelink control information (SCI) comprising the second apparatus identifier-related data; acquiring distance data for the distance between the first apparatus and second apparatus on the basis of location data thereof; and determining whether the first apparatus and second apparatus are within the minimum required communication range (MCR) on the basis of distance data and MCR of the SCI-related service.

Abstract: According to some embodiments, systems and methods are provided for revoking one or more of a plurality of entities in a vehicular public-key infrastructure. The systems and methods balance privacy and efficiency by distributing activation codes according to various approaches, including a direct request approach, a fixed-size subset approach, and a variable-size subset approach.

Abstract: Disclosed herein is a mobile terminal including a first frame, a second frame, a slide frame movable with respect to the second frame in a first direction or a second direction, a flexible display including a third region bent to surround the second frame, and a rolling plate attached to a rear of the flexible display. The second frame includes a side portion at an end thereof facing in a third direction perpendicular to the first direction, and a slide rail formed on the side portion. The rolling plate includes a plurality of support bars extending in the third direction and arranged in the first direction, and a slide hook protruding from an end of each of the support bars and movably inserted into the slide rail. The terminal may maintain the display in a flat state by preventing the display from being separated when the second frame is moved.

Abstract: A display device is disclosed. The display device of the present disclosure may comprise: a flexible display panel; a panel roller which elongates and on or from which the display panel is wound or unwound; a first frame positioned to be adjacent to one end of the panel roller; a second frame positioned to be adjacent to the other end of the panel roller and faces the first frame with respect to the panel roller; a bearing coupled to the one end of the panel roller and fixed to the first frame; a disk wheel adjacent to the other end of the panel roller and coupled to the panel roller while intersecting a rotary shaft of the panel roller; a first stable roller coming into contact with the disk wheel; and a second stable roller coming into contact with the disk wheel.

Abstract: The present disclosure relates to a thermal plasma processing apparatus capable of efficiently using thermal plasma and securing a reaction time for the thermal decomposition of the processing gas. A Thermal plasma processing apparatus according to an embodiment of the present disclosure includes a torch part in which an arc is generated between a negative electrode and a positive electrode, and in which a processing gas to be thermally decomposed by the arc is injected between the negative electrode and the positive electrode, a power supply part configured to be connected to the negative electrode and the positive electrode and to apply a high voltage between the negative electrode and the positive electrode, and a reaction part configured to communicate with the torch part and to generate turbulence in the processing gas passing through the torch part.

Abstract: A method for decoding an image by a decoding device according to the present invention comprises the steps of: deriving, from a bit stream, transform coefficients of a block to be decoded; deriving residual samples of the block to be decoded, on the basis of a selective transform of the transform coefficients; and generating a reconstructed picture on the basis of the residual samples of the block to be decoded and prediction samples of the block to be decoded, wherein the selective transform is performed on the basis of a modified transform matrix, the modified transform matrix comprises a matrix including a modified basis vector, and the modified basis vector contains a certain number of elements selected from N elements.

Abstract: Disclosed are a method and an apparatus for generating an STF signal usable in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of a MIMO transmission. A portion of the STF signal is used to transmit an uplink, and can be used for uplink MU PPDUs transmitted from a plurality of STAs. The STF signal that is disclosed, for example, is used for a 40 MHz band or an 80 MHz band, is desirably usable for the 40 MHz band, and can be generated based on a sequence in which a predetermined M sequence is repeated. The predetermined M sequence can be a binary sequence of which the length is 15 bits.

Abstract: An outdoor unit of an air conditioner may include a case that forms an outside air inlet; a barrier that partitions an inside of the case into a heat exchange space and an electric space; a heat exchanger disposed in the heat exchange space; a fan disposed in the heat exchange space; a compressor disposed in the electric space; and a control box assembly disposed in the electric space. The control box assembly may include a control box connected to the outside air inlet and having electric components disposed therein; and a heat dissipation duct connected to an inside of the control box and that extends from one side of the control box to the barrier. The air introduced through the outside air inlet may be discharged to the heat exchange space after passing through the control box and the heat dissipation duct.

Abstract: According to the disclosure of the present document, by explicitly signaling information relating to a value(s) of a chroma residual scaling factor, accuracy in an LMCS procedure can be increased, and therefore a subjective/objective image quality of a coded image/video can be further improved.

Abstract: According to the disclosure of the present document, an image decoding method performed by a decoding device comprises the steps of: acquiring, through a bitstream, image information including prediction mode information and residual information; deriving a prediction mode of a current block on the basis of the prediction mode information; deriving prediction samples on the basis of the prediction mode; deriving residual samples on the basis of the residual information; generating reconstruction samples on the basis of the prediction samples and the residual samples; deriving filter coefficients for an adaptive loop filter (ALF) procedure for the reconstruction samples; and generating modified reconstruction samples on the basis of the reconstruction samples and the filter coefficients, wherein the image information includes a first adaptation parameter set (APS) including an ALF data field, and the ALF data field includes ALF parameters used to derive the filter coefficients.

Abstract: Provided is a method and device for correcting an error in a communication system, the method including: transmitting, to another device, data encrypted based on key information. The key information is obtained by: incident a detection pulse on a variable Faraday rotating mirror and a reference pulse on a first mirror, respectively, wherein the detection pulse and the reference pulse are pulses branched from a test pulse; generating a first current in a balanced photodetector (BPD) based on a first component obtained as the detection pulse is reflected from the variable Faraday rotating mirror and a second component obtained as the reference pulse is reflected from the first mirror; converting the first current into a second current; incident the second current on the variable Faraday rotating mirror; and correcting the error in the variable Faraday rotating mirror based on the incident second current.

Abstract: A hairpin stator includes a core, slot-positions and hairpin wires. The core includes a first side and a second side. The slot-positions are configured on the core circumferentially to form M radially-adjacent slot-position layers, wherein M is an odd number greater than or equal to 5. The hairpin wires are configured in the slot-positions and connected to form a plurality of windings. The hairpin wires include a plurality of first U-shaped wires arranged at an outermost slot-position layer in the radial direction and a plurality of second U-shaped wires arranged at an innermost slot-position layer in the radial direction. Each first U-shaped wire includes a U-shaped section arranged at the outermost slot-position layer and protruding from the first side of the core. Each second U-shaped wire includes a U-shaped section arranged at the innermost slot-position layer and protruding from the second side of the core.

Abstract: An ice maker of the present invention comprises: an upper tray defining an upper chamber that is a portion of an ice chamber, wherein an upper opening is provided in an upper side of the upper tray; a lower tray defining a lower chamber that is another portion of the ice chamber; a lower support supporting the lower tray and provided with a lower heater; and a control unit configured to operate the lower heater in an ice making process, wherein the control unit variably controls an output of the lower heater so that bubbles included in water in the ice chamber are gathered in a lowermost section in the ice making process.

Abstract: A laundry treatment apparatus is configured to directly heat a drum containing laundry therein. The laundry treatment apparatus includes: a cabinet forming an external appearance of the laundry treatment apparatus; a tub provided in the cabinet; a drum configured to rotate within the tub and to contain laundry therein, the drum being formed of a metallic material; an induction module provided at an outer surface of the tub and configured to heat the drum within the tub via induction by generating a magnetic field; and wherein the outer surface of the tub comprises at least one mounting portion that is configured to mount the induction module, with at least part of the at least one mounting portion being arranged radially closer to a rotational axis of the drum than a remaining portion of the outer surface of the tub.