Abstract: The present invention relates to underwater communication and, more particularly to a signal transmission method and device which configure and transmit physical channel information such that low-power control is performed in underwater communication. The present invention configures the physical channel information such that a reception node side can check through a combination of preambles whether a signal is provided to itself, when forward direction communication is performed in a centralized underwater communication network. Therefore, the present invention performs the control such that only a relevant reception node requiring data reception performs a demodulation operation, without requiring all reception nodes to always perform demodulation in a forward direction communication process. Through this process, many reception nodes do not perform unnecessary demodulation operations in the forward direction communication process, thereby providing an effect of preventing unnecessary power consumption.

Abstract: A method of fabricating a semiconductor device includes forming a device isolation layer in a substrate to define a plurality of active regions extending in a first direction; forming a trench in an upper portion of the substrate that crosses the active regions in a second direction that intersects the first direction; forming a sacrificial layer that fills the trench; forming support patterns on the sacrificial layer, wherein the support patterns fill recessed regions provided at a top surface of the sacrificial layer; and removing the sacrificial layer. The support patterns are spaced apart from each other with the active regions interposed therebetween.

Abstract: A display panel may include a first OLED disposed in a first sub-pixel region and emitting light of a first color, a second OLED disposed in a second sub-pixel region and emitting light of a second color, a third OLED disposed in a third sub-pixel region and emitting light of a third color, a fourth OLED disposed in a fourth sub-pixel region and emitting light of the second color, a first sub-pixel circuit disposed in the first sub-pixel region and driving the third OLED in the third sub-pixel region, a second sub-pixel circuit disposed in the second sub-pixel region and driving the first OLED in the first sub-pixel region, a third sub-pixel circuit disposed in the third sub-pixel region and driving the fourth OLED in the fourth sub-pixel region, and a fourth sub-pixel circuit disposed in the fourth sub-pixel region and driving the second OLED in the second sub-pixel region.

Abstract: A board includes: a core structure; one or more first passive components embedded in the core structure; a first build-up structure disposed on one side of the core structure and including first build-up layers and first wiring layers; and a second build-up structure disposed on the other side of the core structure and including second build-up layers and second wiring layers. One surface of a first core layer contacting a first insulating layer is coplanar with one surface of each of the one or more first passive components contacting a first insulating layer, the other surface of each of the one or more first passive components covered with a second insulating layer is spaced apart from a second core layer, and the one or more first passive components are electrically connected to at least one of the plurality of first wiring layers and the plurality of second wiring layers.

Abstract: The present invention relates to a method, system, and non-transitory computer-readable recording medium for calculating a motion trajectory of a subject. According to one aspect of the invention, there is provided a method for calculating a motion trajectory of a subject, the method comprising the steps of: acquiring at least three images of a subject using one imaging module; and calculating a motion trajectory of the subject with reference to the at least three acquired images, on the basis of each of at least three positions determined by a projection from a viewpoint of the imaging module to the subject on a background, and at least three virtual lines passing through a position where the imaging module is disposed.

Abstract: The present disclosure relates to an electronic device. A storage device includes a memory device configured to include a plurality of memory cells and a memory controller configured to determine a read voltage for a read operation to be performed on the memory device according to whether the read operation is a cache read operation.

Abstract: An all-epitaxial, electrically injected surface-emitting green laser operates in a range of about 520-560 nanometers (nm). At 523 nm, for example, the device exhibits a threshold current density of approximately 0.4 kilo-amperes per square centimeter (kA/cm2), which is over one order of magnitude lower than that of previously reported blue laser diodes.

Abstract: An image forming apparatus is provided. The image forming apparatus includes a print engine to be used to perform an image forming job, a motor to start the print engine, a driving circuit to supply a power to the motor and to include a sensor to sense a size of current of the power supplied to the motor during an operation to perform the image forming job, and a processor to detect an occurrence of jam based on a size of current sensed by the sensor in a first time interval while the motor is driven and a size of current sensed by the sensor after a determined time from the first time interval.

Abstract: An antenna module includes a first connection member including at least one first wiring layer and at least one first insulating layer; an antenna package disposed on a first surface of the first connection member, and including a plurality of antenna members and a plurality of feed vias; an integrated circuit (IC) disposed on a second surface of the first connection member and electrically connected to the corresponding wire of at least one first wiring layer; and a second connection member including at least one second wiring layer electrically connected to the IC and at least one second insulating layer, and disposed between the first connection member and the IC, wherein the second connection member has a third surface facing the first connection member and having an area smaller than that of the second surface, and a fourth surface facing the IC.

Abstract: A navigation apparatus for a vehicle includes: a communication device, a memory, a route search processor, and a controller for controlling the communication device, the memory, and the route search processor. The controller for the traveling route to the destination when a request for searching for the traveling route to the destination is received, checks whether new map data of regions located on the traveling route is present when the traveling route is searched for, controls the communication device to receive the new map data of the regions from an external server when the new map data of the regions is present, and updates the map information based on the received new map data.

Abstract: A display may include flexible substrate, a blocking layer on the flexible substrate, a pixel on the flexible substrate and the blocking layer, and a scan line, a data line, a driving voltage line, and an initialization voltage line connected to the pixel. The pixel may include an organic light emitting diode, a switching transistor connected to the scan line, and a driving transistor to apply a current to the organic light emitting diode. The blocking layer is in an area that overlaps the switching transistor on a plane, and between the switching transistor and the flexible substrate, and receives a voltage through a contact hole that exposes the blocking layer.

Abstract: A method for operating in a power save mode for a wireless local area network and a device using the same are provided. After waking up, a device receives a frame via a wireless medium to determine that the wireless medium is busy. If a decoding of the frame in a medium access control (MAC) layer is unsuccessful but a decoding of the frame in a physical layer is successful, the device determines an Interframe space (IFS) to defer an access of the wireless medium.

Abstract: The present invention relates to a modified IgG4 Fc fragment useful as a drug carrier. When the modified IgG4 Fc fragment of the present invention is combined with an arbitrary drug, the resulting drug conjugate can minimize the effector functions of the IgG4 Fc and the chain exchange with in vivo IgG while maintaining in vivo activity and improving in vivo duration of the drug conjugate.

Abstract: An organic light emitting diode display includes a substrate, a plurality of pixels disposed on the substrate, a plurality of transmissive windows spaced apart from the pixels, and a light blocking member disposed between one of the pixels and one of the transmissive windows. The pixels display an image, and light is transmitted through the transmissive windows. Each pixel includes a transistor including a plurality of electrode members disposed in different layers on the substrate. The light blocking member includes a plurality of light blocking sub-members respectively disposed in the same layers as the plurality of electrode members.

Abstract: Disclosed herein is a unit for collecting and ejecting blood including: a handle extending along a first central axis; a handling block connected to the handle and disposed to have a second central axis that is offset from the first central axis; and a plunger connected to the handle to be movable along a direction of the first central axis and moving toward the handling block when manipulated, wherein the handling block includes: a body having a connection portion connected to the handle and a contact portion located beneath the connection portion; and a collection port formed to pass through the body in a direction from the contact portion to the connection portion and configured to collect blood by a capillary force, and the plunger moves along the direction of the first central axis when manipulated to enter the collection port and push the blood collected in the collection port out of the collection port.

Abstract: An organic light emitting diode display includes a first transistor disposed on a substrate and including a gate electrode, an input electrode, and an output electrode, a second transistor electrically connected to a scan line, a data line, and the input electrode of the first transistor, a third transistor including a gate electrode, a first electrode electrically connected to the output electrode of the first transistor, and a second electrode electrically connected to the gate electrode of the first transistor, and an overlapping layer that overlaps the gate electrode of the third transistor in a plan view. The overlapping layer is disposed between the substrate and a semiconductor layer of the third transistor.

Abstract: The clipping device includes a connecting portion which is moved while being connected to a wire of the endoscope and has a body broken when tension more than a set value is applied thereto, a body portion which includes a first inside path portion through which the connecting portion moves and has a magnetic force, a cap portion which is located on a side of the body portion, includes a second inside path portion connected to the first inside path portion, and guides movement of the connecting portion, a clipping portion which is connected to the connecting portion protruding through the cap portion and contracts due to movement of the connecting portion to grip body tissue, and a connector which connects the body portion to the cap portion and includes a material biodegradable in a human body.

Abstract: Provided are a pixel circuit and a display device having the pixel circuit. The pixel circuit includes an organic light emitting diode, a switching transistor, a storage capacitor, and a driving transistor. The switching transistor is turned off when a scan signal has a first voltage and turned on when the scan signal has a second voltage. The storage capacitor stores a data voltage when the switching transistor is turned on in response to the scan signal. The driving transistor is electrically connected with the organic light emitting diode between a high power supply voltage and a low power supply voltage to provide a driving current to the organic light emitting diode, and includes a first bottom gate electrode that is provided with the first voltage. The driving current corresponds to the data voltage stored in the storage capacitor.

Abstract: Disclosed is a method for operating a communication node supporting a low power mode in a wireless LAN. A method for operating a station, which includes a PCR and a WURx, comprises the steps of: allowing the WURx, which operates in a wake-up state, to receive a wake-up packet from an access point; transitioning an operating state of the PCR from a sleep state to the wake-up state when the wake-up packet is received; allowing the PCR, which operates in the wake-up state, to receive a data frame from an access point; and allowing the PCR to transmit, to the access point, a response to the data frame.

Abstract: The present disclosure relates to a communication technique for converging a 5G communication system, which is provided to support a higher data transmission rate beyond a 4G system with an IoT technology, and a system therefor. The present disclosure may be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety-related service, etc.) on the basis of a 5G communication technology and an IoT-related technology.