Abstract: A red phosphor contains a nitride having a formula of SrxMgySizN2/3(x+y+2z+w):Euw, in which x, y, z, and w satisfy the relationships 0.5?x?2, 2.5?y?3.5, 0.5?z?1.5 and 0<w?0.1. The red phosphor is configured to emit light having a peak wavelength in a range of from 610 nm to 625 nm when irradiated by an excitation source, and the excitation source may be a blue light source having a dominant wavelength in a range of 420 nm to 470 nm. In such a case, the spectrum of the emitted light has a full-width at half-maximum (FWHM) less than or equal to 55 nm.

Abstract: A method of fabricating a CIGS thin film for solar cells using a simplified co-vacuum evaporation process and a CIGS thin film fabricated by the method are disclosed. The method includes: (a) depositing Cu, Ga and Se on a substrate having a substrate temperature ranging from 500° C. to 600° C. through co-vacuum evaporation, (b) depositing Cu, Ga, Se and In through co-vacuum evaporation while maintaining the same substrate temperature as in step (a), and (c) depositing Ga and Se through co-vacuum evaporation, followed by depositing Se alone through vacuum evaporation while lowering the temperature of the substrate. The method can realize crystal growth and band-gap grading by Ga composition distribution while simplifying process steps and significantly reducing a film-deposition time, as compared with a conventional co-vacuum evaporation process, thereby providing improvement in process efficiency.

Abstract: A red phosphor includes a nitride represented by an empirical formula of Sr1?x?yBaxEuyAlSi4N7. A composition ratio (x) of barium (Ba) satisfies 0<x?0.3 and a composition ratio (y) of europium (Eu) satisfies 0?y?0.1.

Abstract: An electronic device, a control method thereof, and a computer-readable medium. The electronic device may include a main body and a cover part coupable to the main body and configured to be attached to and detached from the main body. The electronic device further includes a controller configured to control to output a first signal for determining a coupling state of the cover part with respect to the electronic device, receive a second signal corresponding to the first signal, and determine the coupling state of the cover part with respect to the electronic device based on attributes of the second signal.

Abstract: A method and an apparatus for constituting a feedback signal for hybrid automatic repeat request (HARQ) are provided. Arbitrary two feedback states of feedback states which may occur for two frames may be integrally processed into one state. In addition, the feedback signal including information indicating the feedback state determined for the two frames is constituted and transmitted.

Abstract: Disclosed herein is an adaptive communication method of a base station in a moving wireless backhaul network, including: acquiring frame transmitting/receiving timings of a terminal; periodically searching for a terminal synchronous signal transmitted from the terminal; if the terminal synchronous signal is detected, estimating the frame transmitting/receiving timings of the base station to/from the terminal based on the terminal synchronous signal and the frame transmitting/receiving timings of the terminal; and transmitting the base station synchronous signal to the terminal based on the frame transmitting/receiving timings of the base station.

Abstract: There is provided a red phosphor that may include a nitride represented by a formula of (Sr1?x?yBaxEuy)2Si5N8, wherein 0<x<0.7, and 0<y<0.1. The red phosphor may emit light having a peak wavelength in a range of 600 nm to 630 nm when irradiated by an excitation source and the excitation source may be a blue light source having a dominant wavelength in a range of 420 nm to 470 nm.

Abstract: A method comprising: receiving, by an electronic device, a first signal having a first frequency; identifying, by the electronic device, at least one of a strength of the first signal or a signal-to-noise ratio of the first signal; outputting, by the electronic device, a second signal having a second frequency that is different from the first frequency, the second signal being output based on at least one of the strength of the first signal or the signal-to-noise ratio of the first signal; receiving the second signal by the electronic device; and detecting whether the electronic device is at least partially immersed in a liquid based on the received second signal.

Abstract: The present disclosure relates to a method and system for creating a dynamic floating window for stereoscopic contents, and more particularly, to a method and system for automatically creating a dynamic floating window for stereoscopic contents based on feature points.

Abstract: A method of forming a CIGS absorber layer using a three-stage co-evaporation process, which can improve the efficiency of a solar cell in the case where Na concentration of a substrate is low and thus the depletion layer of the CIGS absorber layer is thick. The method includes a first stage of co-evaporating In, Ga and Se to deposit them; a second stage of co-evaporating Cu and Se to deposit them; and a third stage of co-evaporating In, Ga and Se to deposit them, wherein Ga supply through evaporation in the first stage is greater than Ga supply through evaporation in the third stage.

Abstract: For a transmitting terminal which is connected to a small base station of a small cell to transmit data to a receiving terminal belonging to another small cell, information of the receiving terminal to a target small base station to which the receiving terminal is connected is received from a small base station; when handover to the target small base station may be made, the handover to the target small base station is made depending on a handover instruction from the small base station and then data are transmitted to the receiving terminal through the target small base station.

Abstract: A method for generating a data frame in a wireless communication system includes generating a plurality of first headers having information about the number of segments of a payload, generating a plurality of second headers having information about a transmission mode and a length of predetermined segments among segments of the payload, generating a third header having a transmission mode and a length of remaining segments of the payload; generating a fourth header having supplementary information of the payload and error information of the supplementary information and the first to third headers or error information of the supplementary information and the third header; and generating a data frame with the first to fourth headers sequentially allocated.

Abstract: Disclosed herein are a method, electronic device, and non-transitory computer readable medium for detecting gestures. A head gesture is detected. It is identified whether the head gesture corresponds to a function based at least partially on an image pattern, an angular velocity pattern, and an acceleration pattern of the head gesture. The function corresponding to the head gesture is performed, when the head gesture corresponds to a function.

Abstract: A red phosphor includes a nitride represented by an empirical formula of Sr1?x?yBaxEuyAlSi4N7. A composition ratio (x) of barium (Ba) satisfies 0<x?0.3 and a composition ratio (y) of europium (Eu) satisfies 0<y?0.1.

Abstract: A method of fabricating a CIGS thin film for solar cells using a simplified co-vacuum evaporation process and a CIGS thin film fabricated by the method are disclosed. The method includes: (a) depositing Cu, Ga and Se on a substrate having a substrate temperature ranging from 500° C. to 600° C. through co-vacuum evaporation, (b) depositing Cu, Ga, Se and In through co-vacuum evaporation while maintaining the same substrate temperature as in step (a), and (c) depositing Ga and Se through co-vacuum evaporation, followed by depositing Se alone through vacuum evaporation while lowering the temperature of the substrate. The method can realize crystal growth and band-gap grading by Ga composition distribution while simplifying process steps and significantly reducing a film-deposition time, as compared with a conventional co-vacuum evaporation process, thereby providing improvement in process efficiency.

Abstract: An apparatus and a method for generating and recognizing a barcode in a portable terminal are provided. The apparatus for generating and recognizing a barcode in a portable terminal includes a barcode generator for dividing a barcode into a symbol region, in which data is stored, and a pattern region, in which information on a position of the barcode and the data stored in the symbol region is stored, and positioning a plurality of groups of error correction blocks while interconnecting a plurality of error correction blocks belonging to a same group in the symbol region; and a barcode recognizer for extracting information on the position of the barcode and the data stored in the symbol region through the pattern region of the barcode and searching for a symbol in the symbol region to extract data from the searched symbol.

Abstract: Provided are a method for handover of mobile apparatus, a communication device for the same, and a mobile apparatus using the same. A communication device of a mobile apparatus may comprise a first antenna unit, a second antenna unit, a first signal processing part receiving a handover command indicating to handover from a first beam which maintains connection with the mobile apparatus through the first antenna unit to a second beam, and storing information about the first beam, and a second signal processing part performing handover from a third beam which maintains connection with the mobile apparatus through the second antenna unit to the first beam by using the information about the first beam. Therefore, a procedure for handover to a new beam area may be simplified.

Abstract: The present disclosure relates to a method and system for creating a dynamic floating window for stereoscopic contents, and more particularly, to a method and system for automatically creating a dynamic floating window for stereoscopic contents based on feature points.

Abstract: An apparatus for 2D to 3D conversion using a panorama image includes an image receiving unit for receiving and storing an input image, a user interface for receiving an input of a user who performs a 3D conversion work, a panorama image generating unit for extracting feature points of a plurality of images, a depth setting unit for recording scribbles including depth information in at least one of a plurality of pixels of the panorama image in response to the input of the user received through the user interface, a depth information propagating unit for calculating depth values of other pixels, a depth information remapping unit for mapping a depth value with respect to each of the plurality of images, and a stereo image generating unit for generating a stereo image pair for each of the plurality of images.

Abstract: The present invention relates to a digital signal processing circuit, and more particularly, to a method and apparatus for generating a maximum value or a minimum value used for designing the digital signal processing circuit. An apparatus for obtaining a maximum value or a minimum value from N digital input signals may include N×W bit processing elements to receive an input of W bits of each of the N digital input signals, W OR operators to receive an input of N operation values output from bit processing elements, and to perform an OR operation, respectively, and W inverters to invert an output value for each of the W OR operators.