Abstract: A quantum key distribution system using an RFI (reference frame independent) QKD (quantum key distribution) protocol includes a quantum channel transmitter that generates a first quantum signal including quantum information and provides the first quantum signal to an external device through a quantum channel, a first public channel transceiver that generates an optical signal including first additional information related to a QKD operation, and transmits and receives the optical signal through a public channel, a second public channel transceiver that receives the optical signal through the public channel and generates a measurement result by measuring a circular polarization component of the optical signal, and a quantum channel receiver that receives the first quantum signal through the quantum channel, generates a second quantum signal by correcting a polarization distortion of the first quantum signal based on the measurement result, and demodulates the quantum information from the second quantum signal.

Abstract: Provided are a beam tracking module, a free-space quantum communication device, and a free-space optical communication device. The beam tracking module for free-space quantum communication includes a controller configured to determine a divergence angle of a reference beam on the basis of divergence angle control data, a beam path control optical part configured to output the reference beam, and a beam transmitter configured to adjust the divergence angle through the beam path control optical part so that the reference beam having the determined divergence angle is output.

Abstract: A 5th generation (5G) or 6th generation (6G) communication system for supporting a higher data rate than a beyond 4th generation (4G) communication system, such as long-term evolution (LTE) is provided. An electronic device performs interleaving on codeword bits, according to a polar code sequence corresponding to the codeword bits, allocates the interleaved codeword bits respectively to blocks, and transmits at least one symbol generated as a result of performing modulation on the interleaved codeword bits for each block, based on the allocation, on at least one resource block corresponding to each of the blocks.

Abstract: A method according to an example embodiment of the present disclosure may comprise: when a vehicle being performing a driving negotiation moves, receiving, by an RSU, a first message including a first temporary identification (ID) of the vehicle from a first RSU on a past route of the vehicle; receiving, by the RSU, a second message including a second temporary ID of the vehicle identified by a closed-circuit television (CCTV) in a communicable area of the RSU from the CCTV; checking, by the RSU, the second temporary ID of the vehicle based on the second message received from the CCTV; and identifying, by the RSU, the vehicle as a target to extend the driving negotiation and performing the driving negotiation with the identified vehicle.

Abstract: Provided are an optical alignment device and an optical alignment method. The optical alignment device includes an input optical fiber, a light source provided at one terminal of the input optical fiber to generate input light, an input stage provided at another terminal of the input optical fiber, an output stage spaced apart from the input stage, a stage driving control unit configured to control driving of the input and output stages, a camera configured to receive output light generated from the input light by the waveguide chip and detect a waveguide mode, an output optical fiber having one terminal connected to the output stage, an optical power meter configured to detect an intensity of the output light, and a system controller configured to determine the waveguide mode and the intensity of the output light.

Abstract: An information protection method based on software-defined perimeter (SDP) for Internet of Things (IoT) cloud security may comprise: receiving, at an SDP controller, an onboarding request message with an identity (ID) token from an SDP client acting as an initiating host, the onboarding request message comprising information requesting authentication of the SDP client and a handshake parameter specifying a handshake protocol for use in an SDP access process; and issuing, at the SDP controller, an SDP client credential corresponding to the handshake parameter.

Abstract: A method for determining an abnormality in a medical device from a medical image is provided. The method for determining an abnormality in a medical device comprises receiving a medical image, and detecting information on at least a part of a target medical device included in the received medical image.

Abstract: An electronic device and a method for performing face authentication by using multiple cameras are provided. The method of the electronic device includes an operation of receiving a request for registration of face information through a first camera device having a first characteristic, an operation of acquiring, based on the request, multiple first images through the first camera device, an operation of performing filtering for each of the multiple first images to generate multiple second images reflecting a second characteristic of the second camera device, an operation of generating multiple first templates based on the multiple first images, an operation of generating multiple second templates based on the multiple second images, and an operation of storing the multiple first templates and the multiple second templates in the memory, thereby completing the registration of the face information.

Abstract: A dishwasher includes a water jacket. The water jacket includes a water discharge path configured to discharge wash water to an outside of the dishwasher, a chamber in fluid communication with an upper end of the water discharge path, a check valve disposed inside the chamber, and a hinge disposed in the chamber and connected to the check valve. The check valve includes a floating portion with an empty inside. The specific gravity of the floating is smaller than that of water.

Abstract: Systems, devices, apparatuses, components, methods, and techniques for predicting user and media-playback device states are provided. Systems, devices, apparatuses, components, methods, and techniques for representing cached, user-selected, and streaming content are also provided.

Abstract: A pump (8) is disclosed. The pump (8) includes a partition wall (84) configured to divide the interior of a body into two spaces, a first chamber (C1) located under the partition wall (84), the first chamber (C1) having an introduction portion (841), through which water is introduced, a second chamber (C2) located above the partition wall (84), the second chamber (C2) having a discharge portion (849), through which water is discharged, a communication hole (86) formed through the partition wall (84) to allow the first chamber (C1) and the second chamber (C2) to communicate with each other therethrough, an impeller (85) provided in the second chamber (C2) to move water to the discharge portion (849), a housing configured to define the bottom surface of the first chamber (C1), the housing being made of a conductor, a heater (H) configured to heat the housing (81), and a steam discharge (843) port formed through the first chamber (C1) to allow steam to be discharged therethrough.

Abstract: Disclosed is a polarized light generating device based on an optical waveguide, which includes first to fourth input optical waveguides, respectively, for receiving input light from an outside, first to fifth optical splitters configured to receive at least one light and output the received at least one light as at least one light, and an optical converter configured to receive at least one light from the fifth optical splitter and convert the received light to generate polarized light. The polarized light generating device receives the input light through one of the first to fourth input optical waveguides, and generates a first polarized light, a second polarized light, a third polarized light, and a fourth polarized light. The first to fourth polarized lights belong to elements of two arbitrary two-dimensional mutually unbiased basis sets.

Abstract: The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). Particularly, a method for operating a UE in a wireless communication system according to various embodiments of the present disclosure may include a step of receiving, from a base station, information indicating that CLI measurement is triggered by identifying the UE as a victim UE, a step of receiving one or more cell-level reference signals from one or more UEs in a second cell adjacent to a first cell in which the UE is positioned, after the CLI measurement is triggered, and a step of transmitting, to the base station, a cell-level measurement report including a result of measuring RSRP of the one or more received cell-level RSs.

Abstract: An electronic device is provided. The electronic device includes a fingerprint sensor, a camera, and a processor operatively coupled to the fingerprint sensor and the camera. The processor may be configured to determine whether a plurality of biometric authentications are being performed when an input for performing user authentication is detected through the fingerprint sensor, stop user authentication using the camera if it is determined that the plurality of biometric authentications are being performed, and perform user authentication if a fingerprint image acquired through the fingerprint sensor matches a previously registered fingerprint image.

Abstract: A display apparatus including a display, and a support member including a fixing member to be fixed to a wall surface, a mounting member on which the display is to be mounted and connected to the fixing member, and a connector attaching the mounting member to the fixing member and supported for rotation in forward, backward, leftward, and rightward directions, in which the connector includes a plurality of rotatable supports connected to the fixing member and supported for rotation in the leftward and rightward directions, a plurality of movable supports connected to the rotatable supports and supported for slidable movement in the leftward and rightward directions, and a plurality of connecting supports connected to the mounting member and supported for rotation in the forward and backward directions, and connected to the movable supports to rotate in the leftward and rightward directions.

Abstract: The present invention relates to a target nucleic acid amplification method capable of amplifying a very low concentration of a target nucleic acid at high specificity and a target nucleic acid amplification composition using same and, more specifically, to a method for producing an amplicon of a target nucleic acid at high specificity through a guide probe binding to a target nucleic acid if present, and a partial primer capable of binding to the guide probe and amplifying the target nucleic acid, and a polymerase chain reaction (PCR) composition for implementing the method. The target nucleic acid amplification method according to the present invention is able to amplify even a target nucleic acid present at a very low concentration because the guide probe is utilized to bind to all hybridizable nucleic acid present in a sample while helping the partial primer bind to a detection site of the target nucleic acid.

Abstract: A method for measuring a size change of a target lesion in an X-ray image is provided, including receiving a first X-ray image including the target lesion and a second X-ray image including the target lesion, calculating an occupancy of a region corresponding to the target lesion in criterion regions in each of the first X-ray image and the second X-ray image, and measuring a size change of the target lesion based on the calculated occupancies.

Abstract: A 5th generation (5G) or 6th generation (6G) communication system for supporting a higher data rate than a beyond 4th generation (4G) communication system, such as long-term evolution (LTE) is provided. An electronic device performs interleaving on codeword bits, according to a polar code sequence corresponding to the codeword bits, allocates the interleaved codeword bits respectively to blocks, and transmits at least one symbol generated as a result of performing modulation on the interleaved codeword bits for each block, based on the allocation, on at least one resource block corresponding to each of the blocks.

Abstract: A method for determining an abnormality in a medical device from a medical image is provided. The method for determining an abnormality in a medical device comprises receiving a medical image, and detecting information on at least a part of a target medical device included in the received medical image.

Abstract: Provided are a beam tracking module, a free-space quantum communication device, and a free-space optical communication device. The beam tracking module for free-space quantum communication includes a controller configured to determine a divergence angle of a reference beam on the basis of divergence angle control data, a beam path control optical part configured to output the reference beam, and a beam transmitter configured to adjust the divergence angle through the beam path control optical part so that the reference beam having the determined divergence angle is output.