Abstract: A robot safety monitoring system includes a stereo camera set configured to photograph a robot and a monitoring area around the robot and a processor connected to the stereo camera set. The stereo camera set includes a first camera including a plurality of first camera modules spaced apart from each other, and a second camera including a plurality of second camera modules spaced apart from each other. Based on a first direction, the first camera and the second camera have different fields of view. The processor is configured to set the monitoring area, determine whether an object is present in the monitoring area, and control the robot based on determining that an object is present in the monitoring area.

Abstract: A method and device for a transfer learning for traffic signal optimization are provided. The method may include converting first dynamic traffic information extracted based on a first type of state information corresponding to a first intersection type, and second dynamic traffic information extracted based on a second type of state information corresponding to a second intersection type into a common format; extracting at least one static characteristic information corresponding to at least one of the first intersection type or the second intersection type based on context information; based on the first and second dynamic traffic information and the at least one static characteristic information, outputting a first and second type of action information for an optimized traffic signal for the first and second intersection type, respectively.

Abstract: An embodiment apparatus for correcting an open circuit voltage (OCV) of a vehicle battery includes a storage configured to store a base OCV map for a low-voltage battery of a vehicle and a controller configured to convert the base OCV map into a target OCV map by using status information of the vehicle and status information of the low-voltage battery and correct a target OCV on the target OCV map based on a correction value corresponding to a number of days of parking of the vehicle, a correction value corresponding to a temperature of the low-voltage battery, or both the correction value corresponding to the number of days of parking of the vehicle and the correction value corresponding to the temperature of the low-voltage battery.

Abstract: A display device including: a first elastic member; a display portion disposed on the first elastic member; and a sensing material layer disposed between the first elastic member and the display portion, wherein the display portion including a first island pattern, a second island pattern, and a slit, wherein the first island pattern and the second island pattern are spaced apart from each other with the slit therebetween, and each of the first island pattern and the second island pattern includes a pixel, and wherein the sensing material layer overlaps the slit.

Abstract: A system and method are provided for determining a location of a laser using a diffraction grating. The system includes a lens that projects diffraction patterns from the diffraction grating as an image of diffraction peaks onto a plane. Optical sensors then sense the diffraction peaks. A processor connected to the optical sensors applies a laser position determination method to determine the laser location. In the method, the processor obtains the diffraction peak measurements from the optical sensors and applies a transform to arrange the diffraction peaks into a grid of regularly spaced peaks. The processor then applies convolution kernels to analyze the grid of regularized peaks to to determine a position of a zeroth order diffraction central peak that is used to calculate the angle of incidence of the axis of the laser beam to determine the laser position.

Abstract: A system and method are provided for characterizing a laser using a diffraction grating. The system includes a lens that projects diffraction patterns from the diffraction grating as an image of diffraction peaks onto a plane. Optical sensors then sense the diffraction peaks. A processor connected to the optical sensors applies the laser characterization method to determine the laser wavelength, irradiance and angle of incidence. In the method, the processor obtains the diffraction peak measurements from the optical sensors and applies a transform to arrange the diffraction peaks into a grid of regularly spaced peaks. The processor then applies convolution kernels to analyze the grid of regularized peaks to determine a wavelength, irradiance and angle of incidence of the laser.

Abstract: In an apparatus for managing a battery and a method thereof, the apparatus includes an charger that charges the battery including two or more battery cells connected in series, and a processor that is configured to control the charger to charge the battery with a first constant current in response to a fast charging request for the battery, monitors one of voltages of the battery cells while fast charging is in progress, and is configured to control charging characteristics of the battery according to a section in a dQ/dV profile to which the cell voltage belongs.

Abstract: An optical transceiver is provided. A transceiver optical sub-assembly included in the optical transceiver includes a package body, accommodating optical devices and including a front surface coupled to an optical signal terminal, and a feed-through structure closing a rear surface of the package body and an open portion provided at both side surfaces adjacent to the rear surface. A disposition portion where one end of a flexible printed circuit board (FPCB) is disposed is provided at a front surface of the feed-through structure. Feed-through electrodes bonded to FPCB electrodes provided at the one end of the FPCB are provided on a surface of the disposition portion. For precise alignment of the FPCB electrodes and the feed-through electrodes, a protrusion portion is provided at the one end of the FPCB, and an insertion groove into which the protrusion portion is inserted is formed in a front surface of the feed-through structure.

Abstract: There are provided a method, apparatus, system, and computer-readable recording medium for image compression. An encoding apparatus performs domain transformation and quantization on feature map information and image information. The encoding apparatus rearranges the result of domain transformation and quantization so as to have a form advantageous to the encoding procedure and encodes the result of rearrangement, thereby generating a bitstream. A decoding apparatus receives the bitstream, decodes the received bitstream, and performs inverse transformation, dequantization, and inverse rearrangement using information transmitted through the bitstream. The result of inverse transformation, dequantization, and inverse rearrangement is used for the machine-learning task of a neural network.

Abstract: A circuit board including a contact terminal on a side thereof, a method of fabricating the circuit board, and an electronic device including the circuit board are provided. The circuit board includes: a base layer; a wiring layer formed on the base layer; and a terminal section formed at a level corresponding to the wiring layer, on a first surface and a side surface of one end portion of the base layer.

Abstract: A display device includes display pixels each including a light emitting part including a light emitting element and a pixel driver applying a driving current to the light emitting element, and light sensing pixels each including a light sensing part including an optical element and a sensing driver, the sensing driver applying a sensing current to a sensing line according to a photocurrent of the optical element. The sensing driver includes a first sensing transistor controlling the sensing current flowing through the sensing line according to a voltage of a first electrode of the optical element, and a second sensing transistor initializing the first electrode of the optical element to a first level voltage. A channel layer of the first sensing transistor and a channel layer of the second sensing transistor are made of different materials.

Abstract: The preparation method of polyester copolymer according to the present disclosure uses recycled bis-2-hydroxyethyl terephthalate, and simultaneously, controls the discharge amounts of by-products during the preparation process of polyester copolymer, thereby improving the quality of polyester copolymer, and increasing the efficiency of the preparation process.

Abstract: Proposed are a rinse solution composition for extreme ultraviolet photolithography and a pattern formation method using the same. The rinse solution composition includes 0.0001 to 0.01 wt % of a fluorine-based surfactant, 0.0001 to 0.5 wt % of a pattern reinforcing agent which is a compound of Formula (1), a compound of Formula (2), or a mixture thereof, 0.0001 to 0.5 wt % of a substance selected from the group consisting of a triol derivative, a tetraol derivative, and a mixture thereof, and a residual amount of water.

Abstract: A battery module includes a cell stack formed by stacking a plurality of battery cells including a receiving portion in which an electrode assembly is accommodated, a first edge portion and a second edge portion along the longitudinal direction around the receiving portion, and a third edge portion and a fourth edge portion along the width direction, in the vertical direction with the receiving portions facing each other, the battery cell includes a resealing portion at the first edge portion, and includes a sealing portion or an unsealed portion at the second edge portion, and the first edge portion and the second edge portion are alternately positioned along the vertical direction on both sides of the cell stack.

Abstract: The present embodiment relates to a lens driving device comprising: a first housing; a second housing disposed at an inner side of the first housing; a bobbin disposed a an inner side of the second housing; a first coil disposed on the bobbin; a magnet disposed on the second housing, and facing the first coil; a second coil facing the magnet; a first support member coupled to the bobbin and the second housing; and a second support member coupled to the first housing and the second housing, wherein the second coil is disposed to be spaced apart from the first housing.

Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.