Abstract: A crossing determination apparatus includes: an object detection unit which detects an object moving in a direction perpendicular to a traveling path of an own vehicle; a crossing speed calculation unit which calculates a crossing speed that is a speed at which the object detected by the objection detection unit is crossing a current traveling path of the own vehicle; a crossing determination unit which, when the crossing speed calculated by the crossing speed calculation unit is higher than a predetermined speed, determines that the object is crossing the traveling path of the own vehicle; and a yaw rate detection unit which detects a yaw rate of the own vehicle. The crossing determination unit corrects the crossing speed of the object or the predetermined speed based on the yaw rate detected by the yaw rate detection unit.

Abstract: In an object detection apparatus, a first trajectory estimation unit estimates a trajectory of a first object detected by an electromagnetic wave sensor. An optical flow acquisition unit image-processes a captured image acquired from a camera to acquire movement directions based on optical flows of feature points in the captured image. A movement direction match determination unit determines whether or not a match occurs between a movement direction based on the optical flows and a movement direction based on the trajectory of the first object. If a match occurs between the movement direction based on the optical flows of the plurality of feature points and the movement direction based on the trajectory of the first object, a sameness determination unit determines that a second object identified by the plurality of feature points and the first object are a same object.

Abstract: An antenna module includes a resin multilayer substrate including a plurality of base materials that are flexible. The resin multilayer substrate includes a rigid portion at which a first number of stacked layers of the base materials is relatively large and a flexible portion at which a second number of stacked layers of the base materials is relatively small. A radiating element including a conductor pattern is provided at the rigid portion. A transmission line including a conductor pattern and electrically connected to the radiating element is provided at the flexible portion. A frame-shaped conductor that surrounds the radiating element when viewed in a direction in which the base materials are stacked is provided at either the rigid portion or the flexible portion, or both the rigid portion and the flexible portion.

Abstract: A serial communication branching device and a serial communication system are provided. The serial communication branching device, which branches a plurality of slaves connected to the master by a daisy chain into a plurality of paths, is equipped with a first communication circuit that carries out communication with the master connected to a preceding stage side, a plurality of second communication circuits that carry out communication with the slaves of the paths connected to a subsequent stage side, and a path selection circuit disposed between the first communication circuit and the second communication circuits. In the case that a slave connected on the subsequent stage side transmits a reply signal to the master responsive to a transmission signal transmitted from the master, the path selection circuit selects a path of the slave that transmits the reply signal, and outputs the reply signal from the selected path to the master.

Abstract: In an object detection device, an object inside a first detection range is detected as a first target. An object inside the first detection range and a second detection range, which is narrower in a vehicle width direction than the first detection range, is detected as a second target. As a target object, the object is selected when the first target and second target are the same object, in a first state where a detection position of the object is inside the first and second detection ranges. It is determined whether a detection position of the target object has transitioned from the first state to a second state where the detection position of the object is outside the second detection range and inside the first detection range. Selection for the target object is continued if the target object is a predetermined moving object, when it is determined that the detection position of the target object has transitioned to the second state.

Abstract: An object detection apparatus includes a radar-region-setting-unit setting a detection region of an object as a radar search region based on a detected position of the object detected by a radar, an image-region-setting-unit setting the detection region of the object as an image search region based on the detected position of the object detected by a monocular camera, an object-determination-unit determining the object detected by a radar and the monocular camera as the same object under a condition that an overlapping portion of the radar search region and the image search region exists, and a two-wheeler-determination-unit determining whether an object type detected by the monocular camera is a two-wheeler. The image-region-setting-unit enlarges the image search region compared with a case where the object type is not the two-wheeler, under a condition that the object type is determined as the two-wheeler.

Abstract: A first signal line is closer to a second ground conductor than a second signal line and, hence, crosstalk between the first and second signal lines is unlikely to be generated. By providing first opening portions in the second ground conductor, capacitive coupling between the first and second signal lines is reduced. Hence, in a transmission line including the first signal line, an increase in the capacitance due to the increased width of the first signal line is cancelled out by a decrease in the capacitance due to the increased distance from the first ground conductor and the first opening portions. Further, the width of the high-frequency transmission line need not be large. Further, since the capacitance is reduced by the first and second opening portions, the distances between the first ground conductor and the first and second signal lines are shortened.

Abstract: In a driving assistance device, A arrival position calculation unit specifies an object position on an XY plane, and calculates a predicted arrival position when an object arrives at an X axis based upon a calculated travel trajectory by calculating the travel trajectory of the object. An operation permission unit permits automatic brake operation based upon a collision determination between an own vehicle and the object, when the predicted arrival position falls within a range of an operation target width. An overlapping region extraction unit sets detection error regions on the XY plane, respectively, and extracts a region where both detection error regions set are overlapped with each other as an overlapping region. A setting unit enlarges an operation target width after an automatic-brake-operation start when a characteristic amount condition relating to a size of the overlapping region is satisfied.

Abstract: A wiring board with a filter circuit includes an insulating base, a conductor pattern, and a filter circuit. The conductor pattern is provided on the insulating base and defines the filter circuit. The insulating base includes an intermediate member, and first through third end members connected to the intermediate member. A first external connection terminal is provided on the first end member, and is disposed on a first end of the conductor pattern in the signal transmission direction. A second external connection terminal is provided on the second end member, and is disposed on a second end of the conductor pattern in the signal transmission direction. A first ground connection terminal that grounds the filter circuit is provided on the intermediate member. A second ground connection terminal that grounds the filter circuit is provided on the third end member.

Abstract: An antenna module includes a resin multilayer substrate including a plurality of base materials that are flexible. The resin multilayer substrate includes a rigid portion at which a first number of stacked layers of the base materials is relatively large and a flexible portion at which a second number of stacked layers of the base materials is relatively small. A radiating element including a conductor pattern is provided at the rigid portion. A transmission line including a conductor pattern and electrically connected to the radiating element is provided at the flexible portion. A frame-shaped conductor that surrounds the radiating element when viewed in a direction in which the base materials are stacked is provided at either the rigid portion or the flexible portion, or both the rigid portion and the flexible portion.

Abstract: A high-frequency signal transmission line includes an element, a linear signal line provided at the element and including a first end and a second end, and at least one ground conductor provided at the element and extending along the signal line. The element includes stacked insulating layers. The ground conductor is positioned opposite to the signal line with the insulating layer positioned therebetween. The ground conductor is a contiguous conductor. The signal line, the ground conductor, and the element generate a characteristic impedance. The signal line includes a first section and a second section. The first section is an uninterrupted section generating a characteristic impedance greater than or equal to a first characteristic impedance at the first end and including the first end. The second section generates a characteristic impedance less than the first characteristic impedance and is adjacent to the first section. The second section is longer than the first section.

Abstract: An electronic apparatus includes a transmission line member and a mount circuit board. The transmission line member includes a dielectric base body, a first signal conductor, a first ground conductor, a second ground conductor, and a first transmission line that transmits a first high frequency signal and is defined by the first signal conductor interposed between the first and second ground conductors. The mount circuit board is wrapped by the transmission line member such that the transmission line member covers the mount circuit board from a top surface to a back surface via a side surface of the mount circuit board. At least one of an IC chip, a mount component, and a battery pack is mounted on the mount circuit board and is wrapped by the transmission line member so as to be disposed on an inner peripheral side of the transmission line member.

Abstract: A resin multilayer substrate includes a substrate main body including first, second, and third wiring portions connected to one another by a connecting portion. First, second and third external connection terminals are respectively included in the first, second and third wiring portions. The first external connection terminal includes a conductor exposed at a surface of the substrate main body. The second and third external connection terminals include connectors mounted on conductors on the surface of the substrate main body. An auxiliary mounting conductor is disposed between the first external connection terminal and the second and third external connection terminals on the surface of the substrate main body.

Abstract: A transmission line portion of a flat cable includes first regions and second regions connected alternately. In the first region, the transmission line portion is a flexible tri-plate transmission line including a dielectric element including a signal conductor, a first ground conductor including opening portions, and a second ground conductor which is a solidly filled conductor. In the second region, the transmission line portion is a hard tri-plate transmission line including a wide dielectric element including a meandering conductor, and a first ground conductor and a second ground conductor which are solidly filled conductors. A variation width of the characteristic impedance in the second region is larger than a variation width of the characteristic impedance in the first region.

Abstract: An object detection apparatus includes an object detecting unit, a temporary determination unit a speed acquiring unit, and a final determination unit. The object detecting unit detects a pedestrian or a two-wheeled vehicle as an object that is present in a periphery of an own vehicle by performing image processing on a captured image capturing an advancing direction of the own vehicle. The temporary determination unit temporarily determinates a type of the object detected by the object detecting unit by analyzing the captured image. The speed acquiring unit acquires a movement speed of the object using reflected waves of a carrier wave. The final determination unit finally determines the type of the object temporarily determined by the temporary determination unit using the movement speed acquired by the speed acquiring unit.

Abstract: A transmission line includes a dielectric base body including stacked dielectric layers. A first signal conductor, a second signal conductor, and a ground conductor are included inside the dielectric base body. The first signal conductor includes a first end portion signal conductor and a second end portion signal conductor, which are two end portions in a transmitting direction, and a signal conductor that defines and functions as a main conductor portion. A signal conductor of the second signal conductor and the main conductor portion are provided on different dielectric layers. The signal conductor of the second signal conductor and the signal conductor of the first signal conductor are formed on the same dielectric layer. The ground conductor has an increased width and is located between the signal conductor of the second signal conductor and the main conductor portion in a stacking direction.

Abstract: A multilayer board includes a base including insulating layers stacked in a stacking direction, and a mounting surface at an end of the base in a first direction along the stacking direction, an electronic component inside the base, and a first heat dissipator extending through at least one of the insulating layers from a surface of the electronic component located at an end of the electronic component in the first direction to the mounting surface. When a section of the first heat dissipator is defined as a first section, and a section of the first heat dissipator located farther in a second direction along the layer stacking direction than the first section is defined as a second section, there is a combination of a first section and a second section in which the second section extends farther outward than the first section when viewed from the layer stacking direction.

Abstract: A transmission line includes, in a dielectric body, a first ground conductor, and first and second signal conductors arranged in a width direction of the dielectric body. The first ground conductor includes a first signal conductor ground portion disposed closer to a first side of the dielectric body in a thickness direction than the first signal conductor, a second signal conductor ground portion disposed closer to a second side of the dielectric body in the thickness direction than the second signal conductor, and an intermediate portion that connects the first signal conductor ground portion to the second signal conductor ground portion. The intermediate portion is disposed between a first transmission line including the first signal conductor and the first signal conductor ground portion and a second transmission line including the second signal conductor and the second signal conductor ground portion.

Abstract: In an object detection apparatus, a proximity determination unit determines whether or not a first object and a second object are in close proximity to each other, where the first object is an object detected based on detection information acquired from a radar and the second object is an object detected based on a captured image acquired from a monocular camera. A sameness determination unit determines that the first object and the second object are the same object, if it is determined that the first object and the second object are in close proximity to each other and if a difference between a first collision time with the first object and a second collision time with the second object is less than a reference value.

Abstract: A high-frequency signal transmission line includes an element, a linear signal line provided at the element and including a first end and a second end, and at least one ground conductor provided at the element and extending along the signal line. The element includes stacked insulating layers. The ground conductor is positioned opposite to the signal line with the insulating layer positioned therebetween. The ground conductor is a contiguous conductor. The signal line, the ground conductor, and the element generate a characteristic impedance. The signal line includes a first section and a second section. The first section is an uninterrupted section generating a characteristic impedance greater than or equal to a first characteristic impedance at the first end and including the first end. The second section generates a characteristic impedance less than the first characteristic impedance and is adjacent to the first section. The second section is longer than the first section.