Abstract: An optical signal transmission method according to an embodiment of the disclosure is an optical signal transmission method in which a processor performs at least part of each operation, and may include an operation of receiving a data stream, an operation of separating at least part of the data stream into three channels, modulating the separated data streams respectively according to M-ary frequency shift keying (M-FSK) scheme so as to produce an FSK modulated signal, an operation of combining a plurality of FSK modulated signals modulated respectively in the three channels, and producing a color modulated signal according to a bit-color mapping table set in advance, and an operation of transmitting the color modulated signal by controlling a light source of the same optical channel based on the color modulated signal.

Abstract: A communication device effectively transmits high-speed data while being less affected by restrictions of an environment by adjusting a communication channel depending on an optical communication environment.

Abstract: The present invention relates to an adhesive film for a semiconductor, including: a first layer including an adhesive binder and a heat-dissipating filler; and a second layer including an adhesive binder and a magnetic filler, which is formed on at least one surface of the first layer, wherein the adhesive film has a predetermined composition for the adhesive binder included in each of the first layer and the second layer.

Abstract: A unit pixel including a first light emitting stack; a second light emitting stack disposed under the first light emitting stack, and having an area greater than that of the first light emitting stack; a third light emitting stack disposed under the second light emitting stack, and having an area greater than that of the second light emitting stack, in which at least one of the first through third light emitting stacks includes a side surface having an inclination angle within a range of about 30 degrees to about 70 degrees with respect to a first plane parallel to a top surface of the third light emitting stack.

Abstract: A method of modulating an optical camera communication (OCC) signal by an OCC transmission node in an OCC system includes acquiring a binary data signal, grouping the binary data signal for every k bits to convert the binary data signal into a global phase shift signal having an integer value from 0 to M?1 (=2k?1), generating a data signal group by mapping the global phase shift signal to first to Mth mapping sequences in the form of an n*M/2-bit sequence based on a preset symbol group mapping table, generating a pulse wave signal by modulating the data signal group, and blinking each of a plurality of light sources included in the OCC transmission node according to the pulse wave signal. Accordingly, performance of the communication system may be improved.

Abstract: A light emitting device including a substrate having a protruding pattern on an upper surface thereof, a first sub-unit disposed on the substrate, a second sub-unit disposed between the substrate and the first sub-unit, a third sub-unit disposed between the substrate and the second sub-unit, a first insulation layer at least partially in contact with side surfaces of the first, second, and third sub-units, and a second insulation layer at least partially overlapping with the first insulation layer, in which at least one of the first insulation layer and the second insulation layer includes a distributed Bragg reflector.

Abstract: A method of manufacturing a light emitting device including forming first light emitting parts on a first substrate, the first light emitting part including a first n-type semiconductor layer and a first mesa structure including a first active layer, a first p-type semiconductor layer, and a first electrode and exposing a portion of the first n-type semiconductor layer, forming second light emitting parts on a second substrate, the second light emitting part including a second n-type semiconductor layer and a second mesa structure including a second active layer, a second p-type semiconductor layer, and a second electrode and exposing a portion of the second n-type semiconductor layer, attaching a first removable carrier onto the second light emitting parts and enclosing the second light emitting parts, removing the second substrate from the second light emitting parts, and bonding the second light emitting parts to the first light emitting parts.

Abstract: A unit pixel includes a first light emitting stack, a second light emitting stack disposed under the first light emitting stack, and a third light emitting stack disposed under the second light emitting stack, in which at least one light emitting stack among the first through third light emitting stacks has a mirror symmetrical structure with respect to at least one vertical plane passing through a center of the at least one light emitting stack in plan view.

Abstract: A method can be used for manufacturing an ethylene-propylene-diene terpolymer for a fuel cell. A polymerization step includes subjecting an organic chelate compound forming a coordinate bond, a vanadium-based Ziegler-Natta catalyst, an organoaluminum compound, and ethylene, propylene, and diene monomers, together with a solvent, to polymerization in a reactor. A separation step includes recovering residual catalysts and unreacted monomers from the stream discharged from the reactor. An acquisition step includes recovering the solvent from the stream deprived of the residual catalysts and unreacted monomers to acquire the ethylene-propylene-diene terpolymer.

Abstract: Provided are a recombinant hyaluronan and proteoglycan link protein 1 (HAPLN1), and a composition for preventing or treating pulmonary diseases, the composition comprising at least one selected from the group consisting of HAPLN1 (hyaluronan and proteoglycan link protein 1) protein, a gene coding for the HAPLN1 protein, and an effective agent for promoting the expression or activating the functions of HAPLN1 protein or gene as an active ingredient. The recombinant HAPLN1 according to the present disclosure may have superior effects of improving alveolar damage caused by aging or elastin reduction, and thus may effectively prevent or treat pulmonary diseases, such as chronic bronchitis, asthma, emphysema, and chronic obstructive pulmonary disease.

Abstract: The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transfer rate beyond a 4th generation (4G) communication system such as long term evolution (LTE). The present disclosure relates to encoding and decoding using a polar code in a wireless communication system. A method for operation of a first device in a wireless communication system may comprise the steps of: among sub-blocks including at least one node, identifying at least one inactive sub-block to deactivate the node operation in the sub-blocks; encoding data by using a construction matrix determined on the basis of the at least one inactive sub-block; and transmitting the encoded data to a second device.

Abstract: A light emitting device package including a printed circuit board having a front surface and a rear surface, at least one light emitting device disposed on the front surface and emitting light in a direction toward the front surface, and a molding layer disposed on the printed circuit board and surrounding the light emitting device, in which the light emitting device includes a light emitting structure disposed on the printed circuit board, a substrate disposed on the light emitting structure, and a plurality of bump electrodes disposed between the light emitting structure and the printed circuit board, and the molding layer may cover an upper surface of the substrate and partially reflect, scatter, or absorb external light.

Abstract: Disclosed are a communication scheme and a system thereof for converging IoT technology and a 5G communication system for supporting a high data transmission rate beyond that of a 4G system. The disclosure can be applied to intelligent services (for example, services related to a smart home, smart building, smart city, smart car, connected car, health care, digital education, retail business, security, and safety) based on the 5G communication technology and the IoT-related technology. A decoding method includes: performing decoding through an inner code; detecting an error through an outer code; determining a re-encoding method; and performing re-encoding. A method for processing a signal includes decoding a first layer signal to determine first LDPC information bits, encoding the first LDPC information bits and a first parity bits to determine second parity bits; identifying a part of the first LDPC information bits, and decoding a second layer signal.

Abstract: Disclosed herein are an apparatus and method for autoscaling a service shared in a cloud. The apparatus may include memory in which at least one program is recorded and a processor for executing the program, and the program may perform autoscaling by which at least one second service for performing the same function as a first service is additionally generated or deleted depending on a load that is incurred when multiple clients call the first service in the cloud. The at least one second service may be set to one of two or more execution types having different response times depending on a response time required by each of the multiple clients.

Abstract: A light emitting device package including a printed circuit board having a front surface and a rear surface, at least one light emitting device disposed on the front surface and emitting light in a direction toward the front surface, and a molding layer disposed on the printed circuit board and surrounding the light emitting device, in which the light emitting device includes a light emitting structure disposed on the printed circuit board, a substrate disposed on the light emitting structure, and a plurality of bump electrodes disposed between the light emitting structure and the printed circuit board, and the molding layer covers an upper surface of the substrate and includes a fine concavo-convex part formed on a surface of the molding layer exposed to the outside.

Abstract: The disclosure proposes a technique for achieving validity decision performance of a suitable level in communication and broadcasting systems using a polar code. The polar code is a channel code in which it is difficult to use a syndrome check due to a successive cancellation (SC)-based decoding operation and coding structure. Accordingly, in the communication of the related art and broadcasting systems using the polar code, a validity check of a decoding result has been performed by using a path-metric (PM) generated during decoding and a concatenated error detection code, such as a cyclic redundancy check (CRC) code. However, it is difficult to achieve target error detection performance only via such methods when the length of the CRC code is short or when input and output lengths of a code are short.

Abstract: A light emitting device including a first light emitting part including a first n-type semiconductor layer, a first active layer, and a first p-type semiconductor layer, a second light emitting part disposed on a first surface of the first light emitting part, and including a second n-type semiconductor layer, a second active layer, and a second p-type semiconductor layer, the second n-type semiconductor layer having a first surface and a second surface opposing the first surface, a third light emitting part disposed on a first surface of the second light emitting part, and including a third n-type semiconductor layer, a third active layer, and a third p-type semiconductor layer, a first contact structure contacting the first surface of the second n-type semiconductor layer, and a second contact structure contacting the second surface of the second n-type semiconductor layer.

Abstract: Disclosed are a method and an apparatus for determining a vehicle location based on optical camera communication (OCC).

Abstract: Provided is a method for generating a hollow structure of a 3D model on the basis of a 2D laminated cross-sectional outline to reduce the amount of using a material or the weight of a printed matter during laminating and manufacturing. The method for generating a hollow structure based on a 2D laminated cross-sectional outline, according to an embodiment of the present invention, comprises the steps of: slicing the 3D model; generating a hollow structure outline on the basis of the result of the slicing; detecting an overhang area between adjacent hollow structure outlines; recalculating the hollow structure outline according to the result of detecting the overhang area; and generating a hollow structure mesh on the basis of the recalculated hollow structure outline. Accordingly, because 2D laminated cross-sectional data is used, a hollow structure can be generated without separate data processing, thereby reducing a calculation burden.

Abstract: A vapor deposition apparatus for providing a deposition film on a substrate, the vapor deposition apparatus includes a plurality of first nozzle parts which injects a first raw material toward the substrate; a plurality of second nozzle parts which is alternately disposed together with the plurality of first nozzle parts and injects a second raw material toward the substrate; a diffuser unit which distributes the second raw material to the plurality of second nozzle parts; and a supply unit which supplies the second raw material to the diffuser unit.