Abstract: A rotating electrical machine such that a power supply unit can be efficiently cooled, with no increase in size in an axial direction of the rotating electrical machine, is provided. A rotating electrical machine main body and a power supply unit are integrally fixed, and a refrigerant passage is provided on the rotating electrical machine main body side of a metal frame configuring the power supply unit. The refrigerant passage and a control part that controls power supplied to the rotating electrical machine main body are disposed in the same plane in an axial direction of the rotating electrical machine main body, and the refrigerant passage is disposed farther to a radial direction outer side of the rotating electrical machine main body than the control part.
Abstract: According to the present disclosure, a semiconductor device includes a substrate, a semiconductor chip provided on the substrate, a case having a wall portion provided on the substrate and surrounding the semiconductor chip, and an overhang protruding from the wall portion toward an inside of a region surrounded by the wall portion and a resin that fills the region surrounded by the wall portion, wherein the overhang has an upper surface, and an inclined surface that is provided below the upper surface and on which a distance to the substrate decreases with an increase in distance from a tip of the overhang, the overhang being provided with a through hole penetrating from the inclined surface to the upper surface, and the through hole extends perpendicularly from the inclined surface.
Abstract: An image decoding device including an intra prediction unit for, when a coding mode for a coding block is an intra coding mode, carrying out an intra-frame prediction process on each of processing blocks to generate a prediction image, each of the processing blocks being the coding block or a sub-block obtained by dividing the coding block, wherein, when an intra prediction parameter indicates a vertical prediction process and a size of the processing block is less than a predetermined size, the intra prediction unit performs a specific processing and when the intra prediction parameter indicates the vertical prediction process and the size of the processing block is greater than or equal to the predetermined size, the intra prediction unit performs a specific processing.
Abstract: A semiconductor device according to the disclosure includes a first semiconductor chip, a second semiconductor chip, a first metal plate provided on an upper surface of the first semiconductor chip, a second metal plate provided on an upper surface of the second semiconductor chip and a sealing resin covering the first semiconductor chip, the second semiconductor chip, the first metal plate and the second metal plate, wherein a groove is formed in the sealing resin, the groove extending downwards from an upper surface of the sealing resin, the first metal plate includes, at an end facing the second metal plate, a first exposed portion exposed from a side face of the sealing resin forming the groove, and the second metal plate includes, at an end facing the first metal plate, a second exposed portion exposed from a side face of the sealing resin forming the groove.
Abstract: A semiconductor device includes a base plate, a semiconductor chip, a case, a heat dissipation member, and a plurality of attachment portions. The semiconductor chip is held on a front surface side of the base plate. The case is provided on a front surface of the base plate so as to house the semiconductor chip inside. The heat dissipation member is provided on a back surface of the base plate and contactable with a heat sink for cooling the semiconductor chip. The plurality of attachment portions have a function of attaching the case to the heat sink. Ends of the heat dissipation member in a direction extending along a long side of a plurality of sides that form a shape defined by connecting positions of the plurality of attachment portions in plan view are located between the two attachment portions that form the long side.
Abstract: An information presentation control device includes: an analyzer to calculate a degree of risk based on information regarding an object located around a vehicle; an occupant monitor to determine whether a driver is aware of approach of the object, based on information obtained by imaging the driver with a camera; an image processor to cause at least one of the displays to perform alerting display, based on the degree of risk; and a sound processor to cause the sound output device to generate, as an alerting sound, a sound whose sound image is controlled so that a virtual sound source is localized at a position of at least one of the at least one display, based on the degree of risk. When the driver is aware of the object, the sound processor stops generation of the alerting sound or decreases a sound volume of the alerting sound.
Abstract: A wireless transmitter comprises a massive transmit antennas arrangement, a set of modulators, an analog precoder, and a codebook storing candidate predefined beam configurations corresponding to specific phase pattern configurations of the analog precoder. Transmissions of frames by the wireless transmitter are performed by using combinations of concurrent beam configurations stored in the codebook.
Abstract: In an SiC-MOSFET with a built-in Schottky diode, a bipolar current may be passed in a second well region formed at a terminal part to reduce a breakdown voltage. In the SiC-MOSFET with the built-in Schottky diode, a conductive layer in Schottky connection with the second well region is provided on the second well region in the terminal part, and the conductive layer is electrically connected with a source electrode of the MOSFET. A conductive layer contact hole is provided for connecting only the conductive layer and the source electrode.
Abstract: An ignition device for an internal combustion engine includes an ignition coil, a first switch, a secondary current adjuster, and controller. The ignition coil includes a primary coil, a core, and a secondary coil. The first switch switches an energized state of the primary coil between an ON state and an OFF state. The secondary current adjuster adjusts a current value of a secondary current flowing through the secondary coil. The controller controls the secondary current adjuster so that a current value of the secondary current in at least a part of a charging period of the ignition plug, which is a period from when the energized state of the primary coil is switched from the ON state to the OFF state by the first switch to when dielectric breakdown occurs in the ignition plug, becomes smaller than a peak value of the secondary current after the dielectric breakdown occurs.
Abstract: A control device for a railway vehicle includes a housing and a cover covering an opening. The cover is provided with a lock and a restricting member. The restricting member is located in one of a lock permitting position for permitting locking of the cover and a lock restricting position for restricting locking of the cover. The control device further includes an urging member that urges the restricting member to the lock restricting position. When the cover closes the opening, a pushing member pushes the restricting member to the lock permitting position, resulting in permission of locking of the cover.
Abstract: A remote photoplethysmography (RPPG) system for estimating vital signs of a person is provided. The RPPG system is configured to receive a set of imaging photoplethysmography (iPPG) signals measured from different regions of a skin of a person. The RPPG system is further configured to determine frequency coefficients at the frequency bins of the quantized frequency spectrum of the measured iPPG signals by minimizing a distance between the measured iPPG signals and corresponding iPPG signals reconstructed from the determined frequency coefficients, while enforcing joint sparsity of the determined frequency coefficients subject to the sparsity level constraint, such that the determined frequency coefficients of different iPPG signals have the non-zero values at the same frequency bins; and output one or a combination of the determined frequency coefficients, the iPPG signals reconstructed from the determined frequency coefficients, and a vital sign signal corresponding to the reconstructed iPPG signals.
March 12, 2021
July 22, 2021
Mitsubishi Electric Research Laboratories, Inc., Mitsubishi Electric Corporation
Abstract: An object identification device includes: a region determination unit that acquires observed position information indicating positions at which an object is observed, and determines whether each position is in any one of regions into which an area indicated is divided; a road reference position conversion unit that converts each position in the region, into a traveling direction position parallel to an assumed road direction and a transverse direction position perpendicular to the assumed road direction; and a comparison unit that rearranges the positions in order of the traveling direction, creates pairs of front and rear positions, calculates a difference in the traveling direction positions and the transverse direction positions between each pair of positions, and determines that a pair of positions between which the differences are within thresholds specified in respective items are derived from the same object, and a pair of positions between which at least one of the differences is greater than the thre
Abstract: An evaluation tree generation unit (101) generates as an evaluation tree, an attack tree about an information system, which is based on inference using predicate logic. A gold tree generation unit (102) generates a gold tree which covers an intrusion route to the information system and reflects an intrusion procedure for the information system, by using network configuration information indicating a network configuration of the information system and intrusion procedure information indicating an intrusion procedure assumed in intrusion into the information system. A tree comparison unit (103) compares the evaluation tree with the gold tree.
Abstract: An outdoor unit of an air-conditioning apparatus includes a heat exchange body including a plurality of flat tubes that extend in a vertical direction and that are arranged in a horizontal direction with gaps therebetween. A plurality of the heat exchange bodies are arranged in a direction of air flow to form a heat exchanger. A first header, into which hot gas refrigerant flows from a refrigerant circuit, is provided below one of the plurality of the heat exchange bodies that is at a most upwind position.
Abstract: A detection unit (231) detects, based on synthesis result data obtained by logic synthesis on design data of a target circuit, a predicted place where a glitch is predicted to occur in the target circuit. An insertion unit (232) inserts a glitch removal circuit in an output side of the predicted place by making a change to at least one of the synthesis result data and the design data.
Abstract: A data analysis device (1) according to the present disclosure includes a data collector (131) and a data organizer (135). The data collector (131) collects an input signal that is input from an apparatus connected to the data analysis device (1). The data organizer (135) removes, from among waveforms included in the input signal collected by the data collector (131), a waveform that has an appearance frequency lower than a reference frequency. The data organizer (135) generates learning data by collecting, from among the waveforms included in the input signal, waveforms that have an appearance frequency higher than the reference frequency.
Abstract: An information processing device includes processing circuitry to acquire object spatiotemporal information including spatiotemporal information indicating coordinates of objects in time and space and a name of each of the objects and to generate morphological analysis-undergone object spatiotemporal information by executing a morphological analysis as a process of analyzing the name of each of the objects included in the object spatiotemporal information into one or more words; to acquire morphological analysis-undergone names of vicinal objects, as objects existing in a vicinity of each of the objects in time and space, from the morphological analysis-undergone object spatiotemporal information; to calculate a distribution of vicinal object name words, as words included in the names of the vicinal objects of each of the objects, from the morphological analysis-undergone names; and to convert the distribution of the vicinal object name words to a spatiotemporal information-considered distributed representati
Abstract: Provided is a semiconductor device that can detect the cracking progress with high precision. A semiconductor device is formed using a semiconductor substrate, and includes an active region in which a semiconductor element is formed, and an edge termination region outside the active region. A crack detection structure is termed in the edge termination region of the semiconductor substrate. The crack detection structure includes: a trench formed in the semiconductor substrate and extending in a circumferential direction of the edge termination region; an inner-wall insulating film formed on an inner wall of the trench; an embedded electrode formed on the inner-wall insulating film and embedded into the trench; and a monitor electrode formed on the semiconductor substrate and connected to the embedded electrode.
Abstract: A high withstand voltage isolation region has a first diffusion layer of a second conductivity type formed on a principal surface of a semiconductor substrate. The high withstand voltage MOS has a second diffusion layer of the second conductivity type formed on the principal surface of the semiconductor substrate. A low side circuit region has a third diffusion layer of a first conductivity type formed on the principal surface of the semiconductor substrate. A fourth diffusion layer of the first conductivity type having a higher impurity concentration than the semiconductor substrate is formed on the principal surface of the semiconductor substrate exposed between the first diffusion layer and the second diffusion layer. The fourth diffusion layer extends from the high side circuit region to the low side circuit region and does not contact the third diffusion layer.
Abstract: Provided is a technology that can maintain the reliability and the transmission rate in the communication. A communication system includes a communication terminal, and a first base station and a second base station that are configured to perform radio communication with the communication terminal. The first base station notifies the second base station of information on a numerology to be used for communication between the first base station and the communication terminal when the first base station and the second base station provide the communication terminal with dual connectivity using a same frequency band (Steps ST1501 and ST1502).