Abstract: The present disclosure relates to a real-time blood pressure monitoring system based on photoplethysmography (PPG) using convolutional?bidirectional long short-term memory (LSTM) recurrent neural networks and a real-time blood pressure monitoring method using the same. According to the present disclosure, there is provided the real-time blood pressure monitoring system based on PPG using convolutional?bidirectional LSTM recurrent neural networks, including a pulse wave measurement module configured to measure the PPG, and a blood pressure estimation server configured to receive the measured PPG from the pulse wave measurement module and estimate a blood pressure via the recurrent neural networks.

Abstract: A LiDAR device comprising: a transmission module including a laser emitting array and a first lens assembly, wherein the laser emitting array is configured to emit a plurality of lasers at a first wavelength and wherein the first lens assembly is configured to steer the plurality of lasers at different angles within a first angle range; a reception module including a laser detecting array and a second lens assembly, wherein the laser detecting array includes at least two detectors for detecting at least a portion of the plurality of lasers and wherein the second lens assembly is configured to distribute the plurality of lasers to the at least two detectors; wherein the second lens assembly comprise: at least four lens layers including a first lens layer, a second lens layer, a third lens layer and a fourth lens layer; at least two gap layers including a first gap layer and a second gap layer; and a filter layer located in the first gap layer.

Abstract: The present invention relates to a light detecting and ranging (LiDAR) device for obtaining information on a distance from an object using laser light.

Abstract: Disclosed is a liquid crystal display device including: a liquid crystal display panel for displaying an image; a backlight unit for irradiating light toward a rear surface of the liquid crystal display panel; a cover bottom formed therein with a space in which the liquid crystal display panel and the backlight unit are installed; and a glass attached to a front surface of the liquid crystal display panel to protect the liquid crystal display panel, wherein the liquid crystal display panel and the backlight unit are spaced apart from each other so that air moves through a space between the liquid crystal display panel and the backlight unit. Accordingly, a sealed space is formed inside the liquid crystal display device, and the air inside the sealed space is circulated, so that thermal equilibrium is induced inside the sealed space.

Abstract: Disclosed is a battery module manufacturing method for welding a busbar and an electrode lead included in a battery cell. The method includes bonding the busbar and a filler wire by laser welding. The method also includes bonding the electrode lead and the filler wire by laser welding after the bonding the busbar and the filler wire.

Abstract: The present disclosure relates to an apparatus for estimating a battery free capacity, and more particularly, an apparatus for estimating a free capacity of a half cell of a battery. According to the present disclosure, it is possible to accurately estimate a free capacity of a half cell without inserting a reference electrode by revising an entire SOC region of a half cell by using an inflection point detected based on SOC-voltage data of a full cell and a half cell of the battery, respectively, and then estimating SOC-voltage data based on a SOC difference between the entire SOC regions before and after the revision.

Abstract: A semiconductor package includes a first redistribution layer. A plurality of posts is disposed on the first redistribution layer. A semiconductor chip is disposed on the first redistribution layer between the plurality of posts. A second redistribution layer is formed on the plurality of posts and the semiconductor chip. A first memory stack is disposed on the second redistribution layer. A height of each of the plurality of posts extends from an upper surface of the first redistribution layer to a lower surface of the second redistribution layer.

Abstract: The present invention relates to a multi-channel lidar sensor module capable of measuring at least two target objects using one image sensor. The multi-channel lidar sensor module according to an embodiment of the present invention includes at least one pair of light emitting units configured to emit laser beams and a light receiving unit formed between the at least one pair of emitting units and configured to receive at least one pair of reflected laser beams which are emitted from the at least one pair of light emitting units and reflected by target objects.

Abstract: Provided are a method and device for providing interactive virtual reality content capable of increasing user immersion by naturally connecting an idle image to a branched image. The method includes providing an idle image including options, wherein an actor in the idle image performs a standby operation, while the actor performs the standby operation, receiving a user selection for an option, providing a connection image, and providing a corresponding branched image according to the selection of the user, wherein a portion of the actor in the connection image is processed by computer graphics, and the actor performs a connection operation so that a first posture of the actor at a time point at which the selection is received is smoothly connected to a second posture of the actor at a start time point of the branched image.

Abstract: A magnetic field application device according to an embodiment includes a first coil assembly and a second coil assembly spaced apart in parallel from each other, a power supply configured to apply respective currents to the first coil assembly and the second coil assembly, a controller, and a resonator accommodation unit disposed between the first coil assembly and the second coil assembly, wherein each of the first coil assembly and the second coil includes a coil configured to generate a magnetic field, a guide member connected to a terminal of the coil, a magnetic material mount connected to a terminal of the guide member, and a magnetic material fixed to the magnetic material mount, and wherein the controller is configured to control the currents applied from the power supply to the first coil assembly and the second coil assembly.

Abstract: Provided are a method and device for providing interactive virtual reality content capable of increasing user immersion by naturally connecting an idle image to a branched image. The method includes providing an idle image including options, wherein an actor in the idle image performs a standby operation, while the actor performs the standby operation, receiving a user selection for an option, providing a connection image, and providing a corresponding branched image according to the selection of the user, wherein a portion of the actor in the connection image is processed by computer graphics, and the actor performs a connection operation so that a first posture of the actor at a time point at which the selection is received is smoothly connected to a second posture of the actor at a start time point of the branched image.

Abstract: The present invention relates to a multi-channel lidar sensor module capable of measuring at least two target objects using one image sensor. The multi-channel lidar sensor module according to an embodiment of the present invention includes at least one pair of light emitting units configured to emit laser beams and a light receiving unit formed between the at least one pair of emitting units and configured to receive at least one pair of reflected laser beams which are emitted from the at least one pair of light emitting units and reflected by target objects.

Abstract: A light detection and ranging (lidar) device includes: a lower base; an upper base; a laser emitting unit for emitting a laser in a form of a point light source; a nodding mirror for transforming the laser in the form of the point light source to a line beam pattern which is perpendicular to the lower base, wherein the nodding mirror reflects the laser emitted from the laser emitting unit; a polygonal mirror for transforming the line beam pattern to a plane beam pattern and receiving a laser reflected from an object; and a sensor unit for receiving the laser reflected from the object via the polygonal mirror.

Abstract: Provided is a high-durability coloring metal member. The high-durability coloring metal member includes a metal substrate, a dielectric layer provided on the metal substrate, and an oxynitride compound layer provided on the dielectric layer. The metal member is capable of expressing vivid and various colors with a color protection layer applied on the surface of the metal member.

Abstract: The present disclosure relates to an apparatus for estimating a battery free capacity, and more particularly, an apparatus for estimating a free capacity of a half cell of a battery. According to the present disclosure, it is possible to accurately estimate a free capacity of a half cell without inserting a reference electrode by revising an entire SOC region of a half cell by using an inflection point detected based on SOC-voltage data of a full cell and a half cell of the battery, respectively, and then estimating SOC-voltage data based on a SOC difference between the entire SOC regions before and after the revision.

Abstract: A method for fabricating a semiconductor package includes forming a release layer on a first carrier substrate. An etch stop layer is formed on the release layer. A first redistribution layer is formed on the etch stop layer and includes a plurality of first wires and a first insulation layer surrounding the plurality of first wires. A first semiconductor chip is formed on the first redistribution layer. A solder ball is formed between the first redistribution layer and the first semiconductor chip. A second carrier substrate is formed on the first semiconductor chip. The first carrier substrate, the release layer, and the etch stop layer are removed. The second carrier substrate is removed.

Abstract: Provided is a device and method for designing a light guide plate pattern, the device including a camera configured to capture a liquid crystal display device module mounted in a curved display device, a mura position detector configured to detect a position of mura on the basis of image information and luminance information captured by the camera, a mura shape detector configured to detect shape of the mura on the basis of the image information and the luminance information captured by the camera, a dot pattern density adjuster configured to adjust a density of dot patterns of a light guide plate based on a shape for removing the mura corresponding to the shape of the mura generated in the liquid crystal display device module.

Abstract: A light detection and ranging (lidar) device includes: a lower base; an upper base; a laser emitting unit for emitting a laser in a form of a point light source; a nodding mirror for transforming the laser in the form of the point light source to a line beam pattern which is perpendicular to the lower base, wherein the nodding mirror reflects the laser emitted from the laser emitting unit; a polygonal mirror for transforming the line beam pattern to a plane beam pattern and receiving a laser reflected from an object; and a sensor unit for receiving the laser reflected from the object via the polygonal mirror.

Abstract: A semiconductor package includes a first semiconductor chip and a second semiconductor chip on a substrate, a barrier layer on the first semiconductor chip and the second semiconductor chip, the barrier layer having an opening through which at least a part of the first semiconductor chip is exposed, and a heat transfer part on the barrier layer, the heat transfer part extending along an upper face of the barrier layer and filling the opening.

Abstract: Disclosed is a technology for stabilizing a phase using a modulator bias controller and a laser that emits a beam with a frequency fixed.