Abstract: A battery pack includes a case and a plurality of batteries, wherein the case includes a first body, a second body, and a connecting frame. The first body has a first opening. The second body has a second opening which could match with the first opening. A chamber is formed between the first body and the second body. The connecting frame is connected to the second body, and has a first connecting shaft and a second connecting shaft. The first connecting shaft is adapted to be connected to the first body, and the second connecting shaft is adapted to be connected to a mounting position. The batteries are disposed side by side in the chamber.

Abstract: Provided are a method and device for providing service via wireless communication. A device which provides a service includes a wireless communication unit which receives, from an external device, information about at least one content that is being reproduced by the external device; and a controller which is configured to request an object for using a service related to the at least one content from a server, and to receive the object from the server, and to output the object via an output unit.

Abstract: A method of fabricating a semiconductor device includes preparing a substrate including a cell region and a peripheral region having different active region densities, forming cell trenches for limiting cell active regions in the cell region so that the cell active regions are formed to be spaced apart by a first width in a first direction and by a second width in a second direction, forming peripheral trenches for limiting a peripheral active region in the peripheral region, and forming, in the cell trenches, a first insulating layer continuously extending in the first and second directions and contacting sidewalls of the cell active regions, and having a thickness equal to or greater than half of the first width and less than half of the second width.

Abstract: An operation method of an electronic system includes the following steps. When a first communication module of the electronic device receives a call signal, a controller of an electronic device detects whether an expansion device is electrically connected to the electronic device. Based on a result of the controller detecting whether the expansion device is electrically connected to the electronic device, it is determined whether the electronic system performs sound amplification with a first speaker of the electronic device or performs playing with a second speaker of the expansion device.

Abstract: The present invention relates to a wireless access system supporting millimeter wave (mmWave), and provides a transmission/reception beam scanning method, a channel state information feedback method, and devices supporting the same. According to an embodiment of the present invention, a method for scanning a transmission/reception beam by a millimeter wave (mmWave) terminal in a wireless access system supporting mmWave may comprise the steps of: performing long term beam scanning in period N; transmitting feedback information including a first transmission beam identifier (Tx beam ID) acquired through the long term beam scanning to a mmWave base station; receiving an upper layer signal including reception beam scanning configuration information allocated for short term beam scanning; and performing the short term beam scanning in a reception beam scanning area on the basis of the reception beam scanning configuration information.

Abstract: A regulator includes a first resistor and a second resistor that are connected between a ground node and an output node, an amplifier that outputs an amplification voltage by comparing a reference voltage to a feedback voltage between the first resistor and the second resistor, and amplifying a difference between the reference voltage and the feedback voltage, an analog-to-digital converter that converts the amplification voltage to a digital code, and a plurality of transistors that are connected between a power node supplied with a power supply voltage and the output node and which adjusts a current being supplied to the output node in response to the digital code.

Abstract: Disclosed are: a communication technique for merging, with an IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The disclosure can be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, security and safety-related services, and the like) on the basis of a 5G communication technology and an IoT-related technology.

Abstract: The present specification presents a configuration technique of a field for control information in a wireless communication system. Specifically, presented is a configuration technique of a signal field including user-specific information in a wireless LAN system. A plurality of MCS techniques are applied to each field of a signal field, according to the present embodiment, and each field can be ordered according to the MCS techniques. The signal field according to the present embodiment can be used for a single user or multiple users, wherein the length of each field can be determined for blind decoding of the single user and the multiple users. The signal field according to the present embodiment can be an SIG-B field according to a wireless LAN standard.

Abstract: Provided is a method and device for assisting walking of a user that may receive a pressure value applied to a sole of a user from a pressure sensor, acquire acceleration information associated with a movement of the user from an acceleration sensor, determine a gait phase based on the pressure value and the acceleration information, determine an assist torque corresponding to the determined gait phase, and control a driver to output the assist torque.

Abstract: A dashboard display for a vehicle, and including a light source unit including a plurality of light sources disposed in a matrix form; a display unit configured to display speedometer information using light provided from the light source unit; a needle positioned on the speedometer information and rotatably moving according to a speed of the vehicle; and a processor configured to control the light source unit to emit a predetermined brightness in a region at least partially surrounding the needle, and vary the region at least partially surrounding the needle according to a position of the needle.

Abstract: The present disclosure provides a gradient amplifier driver stage circuit, a gradient amplifier system and a control method thereof. The gradient amplifier driver stage circuit includes: a gradient coil and a plurality of gradient driver modules electrically cascaded with each other and forming an output end, the output end being electrically connected to the gradient coil, wherein each gradient driver module includes a pre-stage power supply and a bridge amplifier connected in parallel, output voltage of the pre-stage power supplies of the plurality of gradient driver modules are the same, and each gradient driver module is configured to provide an inductive voltage drop and a resistive voltage drop on the gradient coil.

Abstract: A communication device includes a first body, a second body, a first audio module, and a second audio module. The second body is rotatably connected to the first body. The first audio module is disposed on the first body. The second audio module is at least partially disposed on the first body. When the second body rotates relatively to the first body to be in a first state to switch the communication device to be in a first operation mode, at least a portion of the first audio module is turned on, and the second audio module is turned off. When the second body rotates relatively to the first body to be in a second state to switch the communication device to be in a second operation mode, the first audio module is turned off, and the second audio module is turned on.

Abstract: A wire to wire connector comprises an insulation housing having a receiving passage extending in an insertion direction of a first wire or a second wire, an integral conductive terminal disposed in the receiving passage and adapted to electrically connect the first wire and the second wire, and a pair of seal members. The receiving passage has a first insertion port and a second insertion port, the first wire is inserted into the receiving passage through the first insertion port and the second wire is inserted into the receiving passage through the second insertion port. The pair of seal members are respectively mounted in the first insertion port and the second insertion port and each have a passageway through which the first wire or the second wire extends. The seal members seal with the first wire and the second wire to prevent moisture from entering the receiving passage.

Abstract: An image display apparatus includes a scanning optical unit configured to scan a laser light, a beam shaper configured to receive the laser light scanned by the scanning optical unit in a direction normal to a surface of the beam shaper, an illumination optical unit configured to transmit the laser light emitted from the beam shaper to a display panel, the illumination optical unit including an anamorphic lens and two reflective optical elements having free-form surfaces, the display panel configured to display an image based on the laser light transmitted by the illumination optical unit, and an eyepiece optical unit configured to concentrate an image light emitted from the display panel to an eye of an observer, the eyepiece optical unit including three reflective optical elements having free-form surfaces.

Abstract: A movable air conditioner provides a structure in which a drain pan is disposed above an outdoor heat exchange part disposed in a lower accommodation space, an indoor heat exchange part is disposed in an upper accommodation space above the drain pan, and a control box is mounted on the drain pan. A portion of the heat sink of the control box is exposed to the upper accommodation space, and another portion of the heat sink is exposed to the lower accommodation space.

Abstract: The present specification proposes a method for transmitting and receiving a signal, and an apparatus therefor, and more specifically, a method for transmitting, by a first station (STA), a signal to a second STA in a wireless LAN (WLAN) system, the method comprising the steps of: generating a training field including a basic training subfield for each spatial-temporal stream and a training subfield for each spatial-temporal stream on the basis of the total number of spatial-temporal streams, wherein the basic training subfield for each spatial-temporal stream is composed of M (M is a natural number) orthogonal frequency division multiplexing (OFDM) symbols on the basis of the information indicated by a header field; and transmitting a signal including the header field and the training field to the second STA through a corresponding spatial-temporal stream.

Abstract: The invention provides an electronic device, a hinge assembly, and an AR interaction process for an electronic device. The electronic device includes a first body, a second body, a hinge assembly, and a rotatable lens. The hinge assembly includes a first hinge, a second hinge, a third hinge, and an L-shaped hinge. The L-shaped hinge has a first segment and a second segment. The first segment is pivotally connected to the first body through the first hinge, the second segment is pivotally connected to the second body through the second hinge, and the first hinge, the second hinge, and the third hinge are parallel to each other and are not coaxial with each other. In addition, the rotatable lens is assembled to the second segment.

Abstract: Disclosed in the present application is a method by which a terminal receives a terminal-specific control channel from a base station in a wireless communication system. Particularly, the method comprises the steps of: receiving, through an upper layer, resource configuration information for at least one aperiodic channel status information-reference signal (CSI-RS); receiving a common control channel including rate matching information of the terminal-specific control channel; and receiving, from the base station, together with the at least one aperiodic CSI-RS, the terminal-specific control channel including a triggering message of a CSI report based on the at least one aperiodic CSI-RS, by using the rate matching information.

Abstract: A parity puncturing apparatus and method for fixed length signaling information are disclosed. A parity puncturing apparatus according to an embodiment of the present invention includes memory configured to provide a parity bit string for parity puncturing for the parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15, and a processor configured to puncture a number of bits corresponding to a final puncturing size from the rear side of the parity bit string.

Abstract: An on-vehicle display device includes a fixed panel fixed to a vehicle body, a display unit, and a bracket that fixes the display unit to the fixed panel. In the display unit, the display cover plate is provided with an overhang which laterally overhangs from a display area, and the overhang has a back side supported by a support piece of the bracket without being fixed to the fixed panel.