Abstract: Disclosed are a device and method for audio signal processing. The audio signal processing device according to an embodiment includes a receiver configured to receive a bitstream corresponding to a compressed audio signal and a processor. The processor may be configured to generate a real restoration signal or a complex restoration signal by performing inverse quantization on real data of the bitstream or complex data of the bitstream, generate a result of real Frequency Domain Noise Shaping (FDNS) synthesis or a result of complex FDNS synthesis by performing FDNS synthesis on the real restoration signal or the complex restoration signal, and generate a restored audio signal by performing frequency-to-time transform on the result of the real FDNS synthesis or the result of the complex FDNS synthesis.

Abstract: The present invention relates to a thermal transfer printing device with a de-curling function and, more particularly, to a thermal transfer printing device with a de-curling function, the device applying heat to an ink ribbon so as to print on roll-type printing paper, de-curling the printed printing paper, and then directly providing a user with printed material without back-feeding.

Abstract: The present disclosure may include: a communication module configured to perform communication with an ultrasonic irradiation device, an ultrasonic imaging device, and a display device; and a processor configured to control an operation in relation to ultrasonic image processing, and the processor is configured to: receive an ultrasonic image from the ultrasonic imaging device through the communication module; extract an irradiation area image for a region of interest (ROI) in the ultrasonic image of the ultrasonic imaging device associated with an ultrasonic irradiation signal of the ultrasonic irradiation device; correct the irradiation area image based on a variation of the ultrasonic irradiation signal in the irradiation area image in a state of focused ultrasound of the ultrasonic irradiation device; and control the display device to display the corrected irradiation area image on the display device.

Abstract: An optical imaging system includes a first lens group, including at least one lens disposed on a first optical axis, a second lens group, including at least one lens disposed on a second optical axis, perpendicular to the first optical axis, and a prism disposed between the first lens group and the second lens group to convert a light path from the first optical axis to the second optical axis. A conditional expression 0.20<d(LG1P)/d(PLG2)<0.60 is satisfied, where d(LG1P) is a distance on the first optical axis from an image-side surface of a lens disposed closest to an image side of the first lens group to an incident surface of the prism, and d(PLG2) is a distance on the second optical axis from an exit surface of the prism to an object-side surface of a lens disposed closest to an object side of the second lens group.

Abstract: The present disclosure is directed to imaging LiDARs with optical antennas fed by optical waveguides. The optical antennas can be activated through an optical switch network that connects the optical antennas to a laser source to a receiver. A microlens array is positioned between a lens of the LiDAR system and the optical antennas, the microlens array being positioned so as to transform an emission angle from a corresponding optical antenna to match a chief ray angle of the lens. Methods of use and fabrication are also provided.

Abstract: Embodiments relate to packaging substrates and methods of manufacturing the same. A substrate with embedded elements according to the embodiments comprises a glass substrate comprising a first surface and a second surface facing each other; and an upper layer stacked on the first surface, or a lower layer stacked on the second surface; wherein the glass substrate may have an edge region that protrudes from the upper layer or the lower layer. A manufacturing method of a packaging substrate, comprises a forming operation of an upper layer on a first surface of a glass substrate comprising the first surface and a second surface facing each other; a removing operation of the upper layer by a predetermined width along a predetermined cutting line; a forming operation of a filamentation along the cutting line on the glass substrate from which the upper layer has been removed; and a cutting operation of the glass substrate using the filamentation.

Abstract: An electric compressor including an inverter housing in which an inverter component for controlling a motor is embedded, the inverter housing having a through-hole formed in one side surface thereof, an electronic component installed in the inverter housing and having one end protruding and exposed toward the motor through the through-hole. A motor housing is coupled to the inverter housing and includes an internal space in which the motor is embedded. An accommodation space is provided in an outer portion of a lateral portion of the motor housing and separated from the internal space, and an exposed portion of the electronic component is inserted into the accommodation space.

Abstract: An embodiment side sill of a vehicle includes a side sill outer having a first convex cross section toward an outside of the vehicle, a side sill inner coupled to an inside of the side sill outer and having a second convex cross section toward an inside of the vehicle, and a reinforcement member disposed in a space between the side sill outer and the side sill inner, the reinforcement member including a plurality of thin plates made of a same material as the side sill and joinable to the side sill by welding, the thin plates being joined to each other to define a closed cross section therebetween and disposed in the space.

Abstract: A method for determining categories for a search query includes obtaining distribution information on each of a plurality of categories of one or more words included in the query; calculating features of the one or more words based on the distribution information on each of the plurality of categories; and calculating, by a classification model, information on at least one category related to the query based on the features of the one or more words and the query.

Abstract: A method and apparatus for encoding/decoding a neural network-based personalized speech are provided. The method includes outputting a first bit stream in which an input speech signal is encrypted, based on the input speech signal, and outputting a second bit stream in which speaker information of the input speech signal is encrypted, based on the input speech signal.

Abstract: Separators and lithium secondary batteries including the separators that can exhibit excellent high-temperature storage stability and capacity retention rate of a lithium secondary battery, a low resistance increase rate, and significantly decreased gas emission are disclosed. In an example embodiment, a separator includes: a porous substrate and a coating layer formed on one or both surfaces of the porous substrate, wherein the coating layer includes a water-soluble crosslinked polyacrylamide-based binder and barium sulfate.

Abstract: A semiconductor package may include a redistribution layer structure including a redistribution layer, a semiconductor chip a first surface of the redistribution layer structure, an under-bump structure disposed on a second surface of the redistribution layer structure and including a protective layer having a trench and an under-bump metal layer, an electronic element on the under-bump structure, and an underfill member filling at least a portion of a space between the under-bump structure and the electronic element and filling at least a portion of the trench, wherein, in a plan view, the trench surrounds the electronic element and may include a protrusion portion protruding outward from the electronic element in a region surrounding an edge of the electronic element.

Abstract: Disclosed is an iontophoresis transdermal drug delivery device for cancer treatment, the device including: a power module including a battery; a microcontroller module configured to receive a voltage from the power module to output a constant-current electrical signal; and a microfluidic chip configured to store a drug and deliver the stored drug to the skin on the basis of the electrical signal.

Abstract: A safety-enhanced center pillar structure for a vehicle includes: a reinforced outer portion provided on the inner side of a center pillar of the vehicle; a reinforced inner portion provided on the inner side of the vehicle in a manner that is spaced apart from the reinforced outer portion; and a connection member. The connection member is positioned between the reinforced outer portion and the reinforced inner portion and connects the reinforced outer and reinforced inner portions to each other. One portion of the connection member is positioned over an upper horizontal surface of a side sill outer portion. Thus, the connection member creates a predetermined distance together with the upper horizontal surface of the side sill outer portion.

Abstract: Disclosed are embodiments of shortest path search in an obstacle environment. Provided is a shortest path search method including: creating an epsilon graph; and determining k closest points from a query point on the basis of the graph, wherein the creating of the graph includes: creating a node group of nodes on the basis of a point group of arrival points; creating an edge group of edges on the basis of the created nodes; setting, on the basis of an obstacle group of at least one obstacle, whether each of the nodes is a valid node or a non-valid node; setting, on the basis of the obstacle group, whether each of the edges is a valid or non-valid edge; and including, for each of the arrival points, a particular arrival point on an anchor list of a valid node closest from the particular arrival point among the valid nodes.

Abstract: An apparatus for controlling an ultrasonic irradiation device according to an aspect of the present disclosure may include: a memory; a communication module configured to perform communication with the ultrasonic irradiation device; and a processor configured to control the ultrasonic irradiation device, the processor is configured to calculate a moving position based on: a first offset distance value between an ultrasonic probe and a marker stored in the memory, a second offset distance value between an ultrasonic irradiation module and a camera stored in the memory, and a first distance value, a second distance value, or a third distance value between a center position of the camera and a position of the marker in an image of an irradiation area obtained from the camera through the communication module.

Abstract: A method and device for encoding/decoding an audio signal based on dequantization through potential diffusion are provided. The method of decoding an audio signal includes obtaining a discrete latent vector in which a speech signal is quantized and based on the discrete latent vector, outputting a continuous latent vector in which the discrete latent vector is dequantized.

Abstract: A semiconductor package may include a semiconductor chip, a redistribution layer on the semiconductor chip, a protection pattern covering the redistribution layer, and a connection terminal on the redistribution layer. The redistribution layer may include a redistribution pad on a top surface of the redistribution layer, and the redistribution pad may include a first pad and a second pad on the first pad. The second pad may have a side surface that is inclined and that extends to a top surface of the first pad, and the protection pattern may be spaced apart from the side surface of the second pad and may have a side surface that is inclined and that extends to the top surface of the first pad.

Abstract: The present disclosure provides an electronic toll collection system (ETCS)-supporting integrated digital rear mirror device and an operating method thereof. According to an example embodiment, the digital rear mirror device may include a digital rear mirror module configured to provide a rear view of a vehicle within a single housing and an ETCS module for electronic toll collection for the vehicle. A substrate of the digital rear mirror module and a substrate of the ETCS module may be separately arranged rather than being stacked within the digital rear mirror device. According to another example embodiment, the ETCS module may transmit information received from an external device to the digital rear mirror module, and the digital rear mirror module may display the information while providing the rear view. Here, the information may include at least one of billing information, event information, traffic information, environmental information, and disaster situation information.

Abstract: An optical imaging system includes a first lens having an object-side surface that is convex; a second lens having a refractive power; a third lens having a refractive power; a fourth lens having a refractive power; a fifth lens having a refractive power and an object-side surface that is concave; and a sixth lens having a refractive power and an object-side surface that is concave, wherein the first lens through the sixth lens are sequentially disposed in numerical order from an object side of the optical imaging system toward an imaging plane, and the optical imaging system satisfies the conditional expressions 0.7<TL/f<1.0 and TL/2<f1, where TL is a distance from the object-side surface of the first lens to the imaging plane, f is an overall focal length of the optical imaging system, and f1 is a focal length of the first lens.