Abstract: A backscatter communication method and apparatus based on pattern-based demodulation is disclosed. The backscatter communication method includes receiving a communication signal, and demodulating the communication signal based on a slope of the communication signal at an edge of each time interval.

Abstract: Provided is a method for creating a virtual reality content, storing the virtual reality content in a transmission buffer, and after that, managing the transmission buffer. A server creates the virtual reality content based on user's motion information, stores the virtual reality content in the transmission buffer and is allowed to modify the virtual reality content stored in the transmission buffer based on subsequently received user's motion information, so that the most recent user's motion information can be appropriately reflected in the virtual reality content. It is possible to provide a more immersive virtual reality service.

Abstract: Disclosed is a wireless power transmitting device and method, the wireless power transmitting device including, in response to detection of a power receiver within a predetermined separation distance from a charging pad, a controller configured to generate a magnetic field through a transmission coil with a multilayer structure in which a plurality of coil layers of different sizes are stacked, and a power transmitter configured to wirelessly transmit, to a reception coil of the power receiver, a power signal generated using magnetic fields generated by the plurality of coil layers.

Abstract: Disclosed are a communication method and communication apparatus using an ambient backscatter communication. A transmission apparatus may include generating a plurality of bitsets by fragmenting data based on a predetermined bitset length, mapping the plurality of bitsets to a plurality of switching patterns based on a data size, and controlling a reflection of a background radio frequency (RF) signal based on a corresponding mapped switching pattern, a total number of the plurality of switching patterns may be determined based on the bitset length, and each of the plurality of switching patterns may have a different length.

Abstract: A light-emitting device package includes a lead frame, a light-emitting device chip, a molding structure, and a plurality of slots. The lead frame includes a first lead and a second lead including metal and spaced apart from each other. The light-emitting device chip is mounted on a first area of the lead frame, which includes a part of the first lead and a part of the second lead. The molding structure includes an outer barrier surrounding an outside of the lead frame and an inner barrier. The plurality of slots are formed in each of the first lead and the second lead. The inner barrier divides the lead from into the first area and a second area. The inner barrier fills between the first lead in the second lead. The second area is located outside of the first area. The plurality of slots are filled by the molding structure.

Abstract: The present invention relates to a growth hormone receptor antagonist comprising a growth hormone variant which is modified by substitution of one or more amino acids of growth hormone. Further, the growth hormone receptor antagonist of the present invention may further comprise a long-acting carrier which is fused to the growth hormone variant. The growth hormone receptor antagonist may have strong binding potency to growth hormone receptor and may exhibit a long-lasting antagonistic action.

Abstract: Provided is a method for creating a virtual reality content, storing the virtual reality content in a transmission buffer, and after that, managing the transmission buffer. A server creates the virtual reality content based on user's motion information, stores the virtual reality content in the transmission buffer and is allowed to modify the virtual reality content stored in the transmission buffer based on subsequently received user's motion information, so that the most recent user's motion information can be appropriately reflected in the virtual reality content. It is possible to provide a more immersive virtual reality service.

Abstract: A semiconductor light emitting device includes a plurality of light emitting structures, an isolation layer covering side surfaces of the plurality of light emitting structures and insulating the plurality of light emitting structures from one another, a partition layer formed on the isolation layer, a first protective layer covering top surfaces of the plurality of light emitting structures and side walls of the partition layer, a reflective layer covering the first protective layer and disposed on the side walls of the partition layer, and a second protective layer covering the reflective layer.

Abstract: A composition for washing a pickled steel plate and a method for washing a pickled steel plate using the same are provided. The composition for washing a pickled steel plate includes a phosphoric acid ester compound, an amine-based compound, sodium carbonate, ammonium acetate, ethylene diamine tetraacetic acid (EDTA) and a remainder of water, and the method for washing a pickled steel plate is performed using the same.

Abstract: According to an embodiment of the present invention, a substrate processing apparatus includes: a chamber in which a process for a substrate is performed; a showerhead installed in the chamber to inject a reaction gas toward the substrate; and a susceptor installed below the showerhead to support the substrate. Here, the showerhead includes: a showerhead main body including an inner space to which the reaction gas is supplied from the outside and a plurality of injection holes configured to inject the reaction gas while communicating with the inner space; an inflow plate installed in the inner space to divide the inner space into an inflow space and a buffer space and including a plurality of inflow holes configured to allow the inflow space and the buffer space to communicate with each other; and a plurality of adjustment plates installed on the inflow holes in a movable manner, respectively, and configured to restrict movement of the reaction gas from the inflow space to the buffer space.

Abstract: A light-emitting device package includes a lead frame, a light-emitting device chip, a molding structure, and a plurality of slots. The lead frame includes a first lead and a second lead including metal and spaced apart from each other. The light-emitting device chip is mounted on a first area of the lead frame, which includes a part of the first lead and a part of the second lead. The molding structure includes an outer barrier surrounding an outside of the lead frame and an inner barrier. The plurality of slots are formed in each of the first lead and the second lead. The inner barrier divides the lead from into the first area and a second area. The inner barrier fills between the first lead in the second lead. The second area is located outside of the first area. The plurality of slots are filled by the molding structure.

Abstract: Provided is a wireless power reception apparatus which receives a power from a wireless power transmission apparatus. A wireless power reception apparatus which receives a power from a wireless power transmission apparatus, the wireless power reception apparatus comprising a duty controller configured to control a duty cycle; a power converter configured to convert an effective load resistance according to the duty cycle; a reception resonator configured to receive a power from a transmission coil of the wireless power transmission apparatus, wherein the duty cycle and a current of the transmission coil is adjusted based on a load resistance of the wireless power reception apparatus.

Abstract: Provided is a wireless power reception apparatus for wirelessly receiving power from a wireless power transmission apparatus, the wireless power reception apparatus including a reception coil configured to receive power by a harmonic with an n*f0 frequency that is generated through electromagnetic induction with the wireless power transmission apparatus; a matching circuit configured to transfer the harmonic with the n*f0 frequency to a harmonic generator; the harmonic generator configured to generate at least one harmonic with an m*n*f0 frequency by applying a multiplication factor m to the transferred harmonic with the n*f0 frequency; a filter configured to filter the harmonic with the m*n*f0 frequency; and a harmonic transmission coil configured to transmit the filtered harmonic with the m*n*f0 frequency to the wireless power transmission apparatus, and to attenuate the harmonic with the n*f0 frequency that is generated from the wireless power transmission apparatus.

Abstract: A backscatter communication method and apparatus based on pattern-based demodulation is disclosed. The backscatter communication method includes receiving a communication signal, and demodulating the communication signal based on a slope of the communication signal at an edge of each time interval.

Abstract: A semiconductor light emitting device includes a plurality of light emitting structures, an isolation layer covering side surfaces of the plurality of light emitting structures and insulating the plurality of light emitting structures from one another, a partition layer formed on the isolation layer, a first protective layer covering top surfaces of the plurality of light emitting structures and side walls of the partition layer, a reflective layer covering the first protective layer and disposed on the side walls of the partition layer, and a second protective layer covering the reflective layer.

Abstract: A stretchable display device capable of being stretched or contracted by external force is discussed. The stretchable display device includes a stretchable substrate capable of being stretched or contracted and divided into a display area and a non-display area, a plurality of organic light emitting diode (OLED) panels disposed in the display area of the stretchable substrate at a constant interval, a plurality of data link lines, a first constant voltage link line and a second constant voltage link line disposed in the non-display area of the stretchable substrate and connected to each of the OLED panels, and a plurality of stretchable lines disposed inside the stretchable substrate in a predetermined shape.

Abstract: A wireless power receiving apparatus, according to an example embodiment, may include a receiving coil in which a first wire including a copper core and a second wire not including a copper core are wound around a same axis. The second wire may be located at a pitch of the first wire, and a diameter of the second wire may correspond to the pitch of the first wire.

Abstract: Disclosed is a wireless power receiving apparatus capable of controlling an effective load resistance. The wireless power receiving apparatus may include a rectifier configured to generate a rectified voltage based on a magnetic field generated in a wireless power transmitting apparatus, and a controller configured to transmit, to the rectifier, a control signal for controlling a rectified phase of the rectifier to adjust an effective load resistance of the wireless power receiving apparatus.