Abstract: An inventive Power over Ethernet (PoE) Powered Device (60) includes an auxiliary processor (62) which negotiates a power level with a PoE Power Sourcing Equipment using a first link layer (650), means for holding the PoE Powered Device in a low power state, and a second link layer (50) which allows the main processor to communicate over the Ethernet.

Abstract: According to the present invention, a video decoding method comprises the steps of: deriving two motion vectors (MVs) for a current block; determining a super sample from among samples in the current block; deriving a refined motion vector and a first refined prediction sample for the super sample on the basis of the two MVs; deriving a second refined prediction sample for a nonsuper sample on the basis of the refined motion vector, wherein the non-super sample is a sample that is not the super sample from among the samples; and generating reconstructed samples on the basis of the first refined prediction sample and the second refined prediction sample. According to the present invention, a more accurate refined motion vector in a sample unit of a current block can be derived, and inter prediction efficiency can be significantly improved.

Abstract: According to the present invention, a picture encoding method comprises the steps of: selecting a Vth basis function for a current block according to a specific order from among basis functions; deriving a Vth expansion coefficient on the basis of the selected Vth basis function; calculating a Vth weighted error criterion on the basis of the selected Vth basis function and the derived Vth expansion coefficient; and encoding and outputting information indicating the Vth number as a basis number when the value of the Vth weighted error criterion is less than a specific critical value. According to the present invention, more accurate intra prediction in a sample unit can be performed, and intra prediction performance can be significantly improved. In addition, according to the present invention, calculation complexity can be reduced, thereby enabling a data amount for a residual signal for a current block to be removed or reduced and the overall coding efficiency to be improved.

Abstract: A three-dimensional printing method for a three-dimensional printing system including a tank, a platform, an injection module, a warning module, a curing module, and a control module is provided. The control module is electrically connected to the curing module, the injection module, and the warning module. The method includes: analyzing a required amount of the liquid forming material corresponding to a three-dimensional object; obtaining a safe amount of the liquid forming material in the tank; and comparing the required amount and the safe amount, wherein the control module provides a response signal to the injection or warning module when the safe amount is less than the required amount. The injection module receives the response signal to inject the liquid forming material to the tank. The warning module receives the response signal to remind a user to provide the liquid forming material to the tank.

Abstract: Provided is a method for processing a video signal on the basis of an arbitrary partition transform, the method comprising the steps of: determining a partition set for input data, the partition set indicating a set of partitions divided from a data block on the basis of a scanning pattern; determining a transform matrix set corresponding to the partition set; obtaining an arbitrary partition transform vector for each partition by applying the transform matrix set to the partition set; and obtaining the arbitrary partition transform coefficient for the input data by inverse-mapping the arbitrary partition transform vector.

Abstract: Disclosed is a method allowing enhanced prediction of a video signal, the method comprising the steps of: entropy-decoding a neighboring block adjacent to a target block; inverse-quantizing the entropy-decoded neighboring block; acquiring the modified neighboring block by carrying out a modified inverse transform on an inverse-quantized transform coefficient vector of the neighboring block; and generating a prediction block for the target block based on the modified neighboring block, wherein the modified inverse transform applies a different scaling matrix for each pixel location reconstructed for the inverse-quantized transform coefficient vector of the neighboring block.

Abstract: A system for use in issuing commands to a plurality of appliances each of a specific one of a plurality of different appliance types includes a smart device adapted to transmit command communications and a plurality of low-energy consuming controllers each adapted to transmit a command to a one of the plurality of appliances of a specific one of the plurality of different appliance types in response to receipt of a command communication originating from the smart device.

Abstract: A vacuum cleaner includes a cleaner body including a suction motor for generating suction force and a suction part communicating with the cleaner body to suck in air and dust. The cleaner body includes a main body, wheels for moving the main body, and a battery detachably provided at a back side of the main body to supply power to the main body.

Abstract: A regulator converting an input voltage into a supply voltage includes a first differential amplifier, a second differential amplifier, a pass element, and a feedback voltage divider. The first differential amplifier includes a reference voltage with a feedback voltage to generate a first output voltage and a first inverse output voltage. The second differential amplifier compares the first output voltage and the first inverse output voltage to generate a second output voltage. The pass element passes an output current from the input voltage to the supply voltage according to the second output voltage. The feedback voltage divider divides the supply voltage by a feedback factor to generate the feedback voltage.

Abstract: A method and a device for transmitting reference signals in a wireless communication system are disclosed. For these, a sequence is acquired to be used for the reference signals, and the reference signals are transmitted through subframes comprising a first type subframe and a second type subframe. Here, the first type subframe includes a first number of OFDM symbols and the second type subframe includes a second number of OFDM symbols. And, a first position of OFDM symbol for transmitting the reference signals at the first type subframe is the same as a second position of OFDM symbol for transmitting the reference signals at the second type subframe.

Abstract: In response to a detected presence of an intended target appliance within a logical topography of controllable appliances identity information associated with the intended target appliance is used to automatically add to a graphical user interface of a controlling device an icon representative of the intended target appliance and to create at a Universal Control Engine a listing of communication methods for use in controlling corresponding functional operations of the intended target appliance. When the icon is later activated, the controlling device is placed into an operating state appropriate for controlling functional operations of the intended target appliance while the Universal Control Engine uses at least one of the communication methods to transmit at least one command to place the intended target appliance into a predetermined operating state.

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting acknowledgement/negative ACK (ACK/NACK) in a wireless communication system which supports carrier aggregation, and to an apparatus for the method. A method in which a terminal transmits ACK/NACK in a wireless communication system that supports carrier aggregation comprises the following steps: receiving one or more physical downlink shared channels (PDSCHs); and transmitting ACK/NACK for said one or more PDSCHs via a physical uplink control channel (PUCCH). A PUCCH format for transmitting ACK/NACK is selected by taking the type of the carrier in which said one or more PDSCHs are received into account.

Abstract: A deblocking filtering method, a boundary strength (bS) deriving method, and encoding/decoding method and apparatus using the methods are provided. The bS deriving method includes the steps of: deriving a boundary of a deblocking filtering unit block which is a unit block on which deblocking filtering is performed; and setting a bS for each bS setting unit block in the deblocking filtering unit block. Here, the step of setting the bS includes setting a bS value of a target boundary corresponding to the boundary of the deblocking filtering unit block as the bS setting unit block.

Abstract: A method for efficiently transmitting and receiving downlink control information is disclosed. The method includes, at a base station, receiving feedback information including a precoding matrix index (PMI) from a user equipment (UE) and transmitting precoding information having a predetermined bit number according to the number of antenna ports and a transmission mode of the base station. The precoding information of a predetermined transmission mode in the precoding information includes confirmation information indicating that the base station uses a PMI which is recently received from the UE.

Abstract: The present invention relates to a method and an apparatus for relay of a first device-to-device (D2D) terminal in a wireless communication system. Specifically, the present invention comprises the steps of: receiving settings regarding a D2D terminal group for single frequency network (SFN) relay; and performing SFN relay using a first resource pool set for SFN relay, wherein the first resource pool is set to be different from a second resource pool for D2D signal transmission of the first D2D terminal to a second D2D terminal.

Abstract: Provided are a device-to-device (D2D) operation method performed by a terminal in a wireless communications system and a terminal using the same. The method comprises receiving a D2D setting from a cell, wherein the D2D setting comprises a frequency indicator indicating a frequency at which a terminal performs a D2D operation according to the D2D setting.

Abstract: A method for transmitting channel status information (CSI) of downlink multi-carrier transmission includes generating the CSI including at least one of a rank indicator (RI), a first precoding matrix index (PMI), a second PMI and a channel quality indicator (CQI) for one or more downlink carriers, the CQI being calculated based on precoding information determined by a combination of the first and second PMIs, determining, when two or more CSIs collide with one another in one uplink subframe of one uplink carrier, a CSI to be transmitted on the basis of priority, and transmitting the determined CSI over a uplink channel. If a CSI including an RI or a wideband first PMI collides with a CSI including a wideband CQI or a subband CQI, the CSI including a wideband CQI or a subband CQI has low priority and is dropped.

Abstract: Provided are a method for a terminal for carrying out vehicle-to-everything (V2X) communication in wireless communication system and a terminal utilizing the method. The method is characterized by acquiring resource allocation information associated with V2X communication from a neighboring cell, and reporting the resource allocation information associated with V2X communication to the serving cell.

Abstract: In response to a detected presence of an intended target appliance within a logical topography of controllable appliances identity information associated with the intended target appliance is used to automatically add to a graphical user interface of a controlling device an icon representative of the intended target appliance and to create at a Universal Control Engine a listing of communication methods for use in controlling corresponding functional operations of the intended target appliance. When the icon is later activated, the controlling device is placed into an operating state appropriate for controlling functional operations of the intended target appliance while the Universal Control Engine uses at least one of the communication methods to transmit at least one command to place the intended target appliance into a predetermined operating state.

Abstract: A printing module and a three-dimensional printing apparatus using the same are provided. The three-dimensional apparatus includes a rack with a printing region and a standby region and a control module. The printing module includes a carriage assembly disposed at the rack and is electrically connected to the control module, a first supporting stand disposed at the carriage assembly to be driven thereby, at least one second supporting stand disposed at the standby region, at least one printing head assembly electrically connected to the control module and having a first buckling portion, and a quick release driving assembly disposed at the first supporting stand and electrically connected to the control module. The control module drives the quick release driving assembly to pick and place the printing head assembly between the first supporting stand and the second supporting stand.