Abstract: An electronic element housing package includes a base and a lead frame. The base is made of resin. The lead frame includes a portion positioned inside the base and another portion exposed from the base. The base includes a recess including a step portion. The lead frame includes a lead surface, a first extension portion, and a second extension portion. The lead surface is exposed at the step portion and has a first side and a second side. The first extension portion extends outward from the lead surface beyond the first side. The first extension portion is positioned inside the base. The second extension portion extends outward from the lead surface beyond the second side. The second extension portion is positioned inside the base. The first side and the second side are two sides not facing one another.
Abstract: Provided are an electromagnetic-wave detection apparatus and a distance-measurement apparatus capable of accurately detecting the position of a subject. An electromagnetic-wave detection apparatus (10) includes a first detection unit (20) configured to detect a reflected wave that is an electromagnetic wave radiated in multiple directions in a space in which an object (ob) is present and reflected by the object (ob), an image-information acquisition unit (141) configured to acquire image information of the space, and a light-reception control unit (144) configured to perform control such that the time difference between the timing at which the image-information acquisition unit (141) acquires the image information and the timing at which the electromagnetic wave is radiated onto a predetermined tracking target included in the object is reduced.
Abstract: To achieve an elastic wave element with excellent electrical characteristics. An elastic wave resonator includes a piezoelectric substrate including a piezoelectric body and an IDT electrode, a support substrate, and a first intermediate layer. In the first intermediate layer, an atomic ratio of a metal element is larger than an atomic ratio of a metal element in the piezoelectric body, and an atomic ratio of oxygen is smaller than an atomic ratio of oxygen in the piezoelectric body. A thickness of the piezoelectric body is equal to or less than five times a maximum pitch of electrode fingers of the IDT electrode.
Abstract: Embodiments described herein relate generally to systems and methods for improving safety features in electrochemical cells. In particular, the systems and methods as described herein can solve safety issues concerning gas generation in electrochemical cells.
Abstract: An isolator includes a substrate having a substrate surface, a waveguide, a groove, a mask, and a non-reciprocal member. The waveguide is disposed above the substrate surface and has a first surface facing the substrate surface, a second surface opposite the first surface, and a side face connecting the first surface to the second surface. The groove includes a bottom portion and a side portion configured to expose at least part of the side face of the waveguide. The mask is disposed above and overlaps at least a region of the second surface of the waveguide, as viewed in a direction normal to the substrate surface. The region of the second surface of the waveguide is in contact with the groove. The non-reciprocal member is disposed in the groove and is in contact with the side face of the waveguide.
March 2, 2023
September 14, 2023
KYOCERA Corporation, Toyohashi University of Technology
Abstract: An electronic device includes a transmission antenna that transmits a transmission wave, a plurality of reception antennas that receive a reflected wave that is the transmission wave having been reflected, and a signal processing unit that detects an object with a subspace method, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The signal processing unit estimates a direction of arrival of the reflected wave, based on solutions of an algebraic equation Root-MUSIC Polynomial (hereinafter referred to as “RMP solutions”) in a Root-MUSIC method that satisfy a first requirement and a second requirement in terms of positions of the RMP solutions in a complex plane. The first requirement is a requirement related to a distance between a unit circle and each of the RMP solutions in the complex plane.
July 6, 2021
September 14, 2023
Jun KURODA, Tooru SAHARA, Fangwei TONG, Takuya HOMMA
Abstract: A wiring board includes a metal substrate, an insulating resin layer positioned on the metal substrate, the insulating resin layer including: a first surface facing the metal substrate, a second surface positioned opposite to the first surface, third surfaces positioned between the first surface and the second surface, first ridge portions where the first surface meets the third surfaces, second ridge portions where the second surface meets the third surfaces; and a first closed pore group closer to the first ridge portions than to the second ridge portions. The first closed pore group includes a plurality of closed pores densely contained.
Abstract: An elastic wave resonator includes a piezoelectric body, an IDT electrode positioned on the piezoelectric body, and a pair of reflectors. The IDT electrode includes a plurality of first electrode fingers arranged at a first pitch in a propagation direction of an elastic wave, and at least one second electrode finger formed at each end in the propagation direction of the plurality of first electrode fingers. The reflector is positioned at each end in the propagation direction of the IDT electrode and includes a plurality of strip electrodes arranged, in the propagation direction, at a second pitch wider than the first pitch or having a duty ratio higher than a duty ratio of any of the plurality of first electrode fingers and the at least one second electrode finger.
Abstract: An electronic device includes a transmission antenna and a reception antenna. The transmission antenna transmits a transmission wave. The reception antenna receives a reflection wave generated by reflection of the transmission wave. The electronic device detects an object based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflection wave. The electronic device includes a controller that determines how frequently to transmit the transmission wave in each of multiple segments of frequencies at which the transmission wave is transmitted in accordance with noise powers in the multiple segments of the frequencies.
Abstract: A measurement apparatus determines a first point and a second point that are two points in a space in which a measurement target is present and that are used in measurement of a size of the measurement target, calculates first space coordinates indicating a position of the first point in the space and second space coordinates indicating a position of the second point in the space on the basis of range information relating to a distance from a reference position to the first point and a distance from the reference position to the second point, and calculates a distance between the first point and the second point on the basis of the first space coordinates and the second space coordinates.
Abstract: A film capacitor includes a stack including at least one dielectric film and a plurality of metal films, the at least one dielectric film including a polyarylate film, wherein each of the at least one of dielectric film and each of the plurality of metal films are alternately stacked in a stacking direction, each of the plurality of metal films deposited on each of the at least one dielectric film by vapor deposition, cover films on two first side surfaces, the two first side surfaces facing each other in a first direction, the first direction orthogonal to the stacking direction, the cover films containing a polyester hot-melt resin, and metal-sprayed electrodes on two second side surfaces, the two second side surfaces facing each other in a second direction, the second direction perpendicular to the first direction and orthogonal to the stacking direction.
Abstract: User equipment, and an apparatus and method used in user equipment are perform a predetermined data transmission in which the user equipment transmits uplink user data when the user equipment is in an RRC inactive state. The user equipment, apparatus and method transmit a random access preamble for the predetermined data transmission to a base station during a random access procedure, and transmit an MSG 3 message together with uplink user data to the base station during the random access procedure. A base station performs a predetermined data transmission in which a user equipment transmits uplink user data when the user equipment is in an RRC inactive state, includes a receiver receiving a random access preamble for the predetermined data transmission during a random access procedure from the user equipment, and receives an MSG 3 message together with uplink user data from the user equipment during the random access procedure.
Abstract: A circuit board includes an insulating substrate including a wiring conductor and a first resin substrate that is made of a resin different from the insulating substrate and is laminated on the insulating substrate. The first resin substrate has a plurality of internal conductors located from a surface thereof facing the insulating substrate to a surface on a side opposite to the insulating substrate. Each of the plurality of internal conductors includes a part that is inclined with respect to a perpendicular to the surface facing the insulating substrate. Intervals at which the plurality of internal conductors are located on the side opposite to the insulating substrate are narrower than intervals at which the plurality of internal conductors are located on an insulating substrate side.
Abstract: An image processing device 20 includes a communication unit 21 and a controller 22(processor). The communication unit 21 acquires a standard image and a reference image captured by a stereo camera 10. The controller 22 calculates a disparity based on the standard image and the reference image. The controller 22 calculates, at each pixel position, a cost value representing a degree of difference for each pixel position between the standard image and each of multiple images obtained by displacing the reference image by multiple different deviation amounts in a direction corresponding to a baseline length direction of the stereo camera 10. The processor aggregates the cost values using dynamic programming and calculates a disparity for each pixel position based on the aggregated cost values for each different deviation amount. The multiple different deviation amounts are discrete values at uneven intervals.
Abstract: A mounting board includes a base portion and a frame portion. The base portion includes a first upper surface including a first mounting region. The frame portion includes a second upper surface including a second mounting region and an inner wall surface intersecting with the second upper surface. The inner wall surface of the frame portion includes a first portion connecting with the second upper surface, and a second portion located opposite to the first portion with the first mounting region interposed therebetween. In the second portion, a first film that absorbs light and having a reflectance lower than a reflectance of the inner wall surface of the frame portion is located.
Abstract: A three-dimensional display system, a head up display system, and a mobile object including a head up display system include a display apparatus, barrier, detection apparatus, and controller. The display apparatus has subpixels arranged in a grid along orthogonal first and second directions and displays left- and right-eye images respectively in first subpixels and second subpixels separated by a display boundary from among the subpixels. The barrier has a light shielding region that shields the left-eye image and the right-eye image, and a light transmitting region that causes at least part of the left-eye image to reach a left eye of a user and at least part of the right-eye image to reach a right eye of the user. The detection apparatus detects the left and right eye positions. The controller moves the display boundary based on at least a change in the positions of the left and right eyes.
May 1, 2023
August 24, 2023
OSAKA CITY UNIVERSITY, KYOCERA Corporation
Abstract: A lens unit includes multiple lenses, a lens barrel, and a lens holder. The multiple lenses are aligned with respect to an optical axis. The lens barrel contains metal and includes an inside surface. The lens holder is on the inside surface and in contact with the multiple lenses. The lens holder contains resin.
Abstract: A wiring conductor includes a first electrode located on a bottom surface of a recessed portion, a second electrode located on a first surface between a frame portion and the recessed portion, a first external electrode located on a second surface, and a second external electrode located on the second surface and electrically connected to the second electrode. A conductive sheet is electrically connected to the second electrode and extends over an opening of the recessed portion above the first surface.
Abstract: An electronic device 10 includes an imaging unit 11, a gaze-line detector 12, and a controller 14. The imaging unit 11 is configured to create at least one image corresponding to a view by image capturing. The gaze-line detector is configured to detect a gaze line of a subject, the gaze line being directed to the view. The controller 14 is configured to serve as a first inference unit 15 and a second inference unit 16. The first inference unit 15 is capable of inferring a gaze-line prediction map based on the at least one image. The second inference unit 16 is capable of inferring biological information regarding an alertness level of the subject based on the gaze-line prediction map and the gaze line of the subject.
Abstract: To realize a substrate shape capable of ensuring a required substrate thickness while improving acoustic characteristics. A package on which a microphone element is to be mounted, the package including a substrate includes at least one recessed portion in a region corresponding to a mounting portion of the microphone element in the package. A bottom surface of the recessed portion in the substrate is a thin plate portion that is thinner than thicknesses of other regions. The substrate includes a plurality of through holes in the thin plate portion.