Abstract: A display control device for a vehicle to control displaying a virtual image includes: a display image generator that generates a guide object display image for guiding a travel route; a distance recognition unit that recognizes a remaining distance from a current location of the vehicle to a guide target point; and a display controller that: displays a non-superimposed virtual image not to be superimposed on a specific superimposition target when the remaining distance is longer than a switch distance; and displays a superimposed virtual image to be superimposed on the specific superimposition target switched from the non-superimposed virtual image when the remaining distance becomes shorter than the switch distance.

Abstract: A display control device that controls a display state of a virtual image to be overlapped on an overlapping target in front of a passenger of the vehicle includes: a display image generator that generates a guide display object image formed by a combination of a plurality of image elements overlapped and displayed along a travel route to notify a passenger of the travel route of the vehicle; and an abandonment determination unit that determines whether each of the image elements is disposed out of a displayable range of the virtual image. When one of the image elements is disposed out of the displayable range, the display image generator displays a part of the image elements as the guide display object image, which is disposed along the travel route just before the one of the image elements that is determined to be out of the displayable range.

Abstract: A display control device for a vehicle to control a display of a virtual image to be superimposed on a superimposition target in a foreground of an occupant includes: a condition determination unit that determines whether a predetermined interruption condition is satisfied; and a display control unit that interrupts the display of the virtual image when the condition determination unit determines that the interruption condition is satisfied.

Abstract: A semiconductor optical device may include a semiconductor substrate; a mesa stripe structure that extends in a stripe shape in a first direction on the semiconductor substrate and includes a contact layer on a top layer; an adjacent layer on the semiconductor substrate and adjacent to the mesa stripe structure in a second direction orthogonal to the first direction; a passivation film that covers at least a part of the adjacent layer; a resin layer on the passivation film; an electrode that is electrically connected to the contact layer and extends continuously from the contact layer to the resin layer; and an inorganic insulating film that extends continuously from the resin layer to the passivation film under the electrode, is spaced apart from the mesa stripe structure, and is completely interposed between the electrode and the resin layer.

Abstract: A driving assistance apparatus includes: a traveling state detection unit of a vehicle; a rear condition detection unit that detects a status relating to a moving object behind the vehicle; a checking action detection unit that detects an action of a driver of the vehicle for checking behind the vehicle; a deceleration detection unit that detects deceleration of the vehicle; a notification unit that performs notification to the driver; and a control unit that controls the notification unit to perform the notification to the driver when the vehicle decelerates in a case where a condition that: the vehicle is in a traveling state; the moving object is disposed within the predetermined range behind the vehicle; and the driver has not checked behind the vehicle continues for a predetermined time.

Abstract: The upper surface of the semiconductor substrate has a slope descending from the projection in the second direction at an angle of 0-12° to a horizontal plane. The mesa stripe structure has an inclined surface with a slope ascending from the upper surface of the semiconductor substrate at an angle of 45-55° to the horizontal plane, the mesa stripe structure having an upright surface rising from the inclined surface at an angle of 85-95° to the horizontal plane. The buried layer is made from semiconductor with ruthenium doped therein and is in contact with the inclined surface and the upright surface. The inclined surface is as high as 80% or less of height from the upper surface of the semiconductor substrate to a lower surface of the quantum well layer and is as high as 0.3 ?m or more.

Abstract: A vehicle display control device controls display performed by a head-up display for a vehicle. The head-up display is configured to project an image on a projection member to cause a virtual image to be displayed in superimposed relation on a front view of the vehicle. The vehicle display control device determines a host vehicle situation as a road structure of a road on which a host vehicle is running, and controls to limit or not to limit a superimposed display of the virtual image with respect to a target object on which the virtual image is to be displayed in superimposed relation according to the host vehicle situation determined.

Abstract: A driving assistance device includes a deceleration detection unit, an information calculation unit, and an index calculation unit. The information calculation unit obtains at least one type of front information including a time to collision until an own vehicle collides with a preceding vehicle, a time headway until the own vehicle reaches a position of the preceding vehicle, and a following distance between the own vehicle and the preceding vehicle when the own vehicle stops, after a deceleration start of the own vehicle. The index calculation unit obtains an index indicating a driving characteristic that is a characteristic of a driving operation of a driver, based on the front information.

Abstract: Provided are a semiconductor light receiving device, an optical receiver module, and a manufacturing method thereof in which characteristics of the device are improved when the device has a structure in which a mesa structure including layers formed of a common material is buried by a buried layer. The semiconductor light receiving device includes the mesa structure including the layers formed of a commonmaterial, the layers including an absorbing layer, the mesa structure being buried by the buried layer formed so as to surround side surfaces of the mesa structure. The mesa structure has a cross section having a forwardly tapered portion and a reversely tapered portion.

Abstract: A driving assistance device includes a deceleration detection unit, an information calculation unit, and an index calculation unit. The information calculation unit obtains at least one type of front information including a time to collision until an own vehicle collides with a preceding vehicle, a time headway until the own vehicle reaches a position of the preceding vehicle, and a following distance between the own vehicle and the preceding vehicle when the own vehicle stops, after a deceleration start of the own vehicle. The index calculation unit obtains an index indicating a driving characteristic that is a characteristic of a driving operation of a driver, based on the front information.

Abstract: Provided is a butt-jointed (BJ) semiconductor integrated optical device having a high manufacturing yield. A semiconductor integrated optical device, which is configured such that, on a semiconductor substrate, a first semiconductor optical element including an active layer and a second semiconductor optical element including a waveguide layer are butt-jointed to each other with their optical axes being aligned with each other, includes: a semiconductor regrowth layer including at least one of a diffraction grating layer or an etching stop layer, which is formed by one epitaxial growth across an entire surface above the active layer and the waveguide layer; and a cladding layer formed above the semiconductor regrowth layer.

Abstract: Provided are a semiconductor light receiving device, an optical receiver module, and a manufacturing method thereof in which characteristics of the device are improved when the device has a structure in which a mesa structure including layers formed of a common material is buried by a buried layer. The semiconductor light receiving device includes the mesa structure including the layers formed of a commonmaterial, the layers including an absorbing layer, the mesa structure being buried by the buried layer formed so as to surround side surfaces of the mesa structure. The mesa structure has a cross section having a forwardly tapered portion and a reversely tapered portion.

Abstract: Provided is a butt-jointed (BJ) semiconductor integrated optical device having a high manufacturing yield. A semiconductor integrated optical device, which is configured such that, on a semiconductor substrate, a first semiconductor optical element including an active layer and a second semiconductor optical element including a waveguide layer are butt-jointed to each other with their optical axes being aligned with each other, includes: a semiconductor regrowth layer including at least one of a diffraction grating layer or an etching stop layer, which is formed by one epitaxial growth across an entire surface above the active layer and the waveguide layer; and a cladding layer formed above the semiconductor regrowth layer.

Abstract: Provided is a semiconductor light receiving device including: a semiconductor substrate; a semiconductor layer laminated on the semiconductor substrate and including an upper surface portion; a reflecting film formed to cover the upper surface portion of the semiconductor layer and including a principal reflecting region and an upper surface; and an upper electrode formed to cover at least one portion of the upper surface of the reflecting film, and including a junction portion extending through the reflecting file to be provided in contact with the upper surface portion of the semiconductor layer, the junction portion of the upper electrode surrounding a portion of a circumference of the principal reflecting region of the reflecting film, the principal reflecting region being connected to a region of the reflecting film located outside the junction portion, in which the semiconductor light receiving device detects light entering from another side of the semiconductor substrate.

Abstract: When an accelerator is put in an OFF state to decelerate a vehicle and perform inertia travel with supply of fuel being cut off, measurement of an accelerator OFF lapse time is started. When a travel speed falls down to be lower than a pre-stop speed, a measured lapse time is stored in a memory, with the measurement of the lapse time being further continued. After finishing a travel of a downward slope, the travel speed is reduced to fall down to the pre-stop speed again, a lapse time continuously measured up to that time is updated in the memory. When the travel speed falls to a stop speed, the measurement of the lapse time is finished and the continuously-measured lapse time is determined as a required stop time of the vehicle. As the required stop time increases, driving is diagnosed as being fuel-efficient.

Abstract: A drive condition, which is used to determine a SOC management plan, is collected from each of road sections and is cumulatively memorized in a durable memory medium. When a remaining charge amount of a battery reaches a lower limit standard value or an upper limit standard value at a certain location, a candidate control section is defined around and includes such point. The candidate control section is defined to extend a predetermined distance forward and backward from such point. The drive conditions stored for the candidate control section are used to determine the SOC management plan that controls the remaining charge amount of the battery to be controlled within a standard range. When the vehicle enters the candidate control section, the drive control of a power source in the vehicle is performed according to the SOC management plan for the candidate control section.

Abstract: An information service system for providing facility information includes: a restriction information obtaining device for obtaining restriction information relating to a driving condition or a user behavior; a preference information obtaining device for obtaining preference information of the user; a first information retrieving device for retrieving necessary facility information among multiple facility information items according to the restriction information; a second information retrieving device for retrieving preference facility information suited to the user preference among multiple necessary facility information items according to the preference information when the necessary facility information includes multiple necessary facility information items; and an information output device for outputting the necessary facility information or the preference facility information.

Abstract: A vehicle drive control apparatus for use in a vehicle collects the number of travels in each of road sections in a traveled route for each of travel directions, extracts road sections having been traveled for more than a threshold number for each of travel directions, and stores extracted road sections as control section data maps in a durable storage medium. If the vehicle travels into the road sections stored as the control section data map, the “stored-as-the-map” road sections are identified as a series of road sections of high-travel-probability. In this manner, a series of road sections can be accurately identified as a high-probability section without having a user input of a travel destination or the like.

Abstract: An apparatus for connecting getting-in and off records of a vehicle includes: a driving information memory unit for storing getting-in and off records having a pair of getting-in and getting-off records, each of which represents a getting-in or off time and place; a grouping unit for grouping the getting-in or off records representing a same getting-in or off time zone and place, so that segmentalized getting-in or off groups are generated; a connecting unit for searching a segmentalized getting-in group connected to one segmentalized getting-off group, and for storing connection information between a searched segmentalized getting-in group and the one segmentalized getting-off group; and an estimating unit for specifying a getting-off time and a getting-off point when the getting-off action of the driver is detected, and estimating a getting-in time for a next driving according to the connection information.

Abstract: A driving assistance apparatus mounted to a vehicle is provided. The driving assistance apparatus includes: an information acquisition component configured to acquire information on at least one of a route condition in a predetermined region of a future travel path of the vehicle, a present vehicle condition, and a past operation condition; a prediction component configured to predict, based on the information acquired by the information acquisition component, whether fuel efficiency of the vehicle is degraded in the future travel path; and a notification component configured to notify an operation for improvement of the fuel efficiency of the vehicle to an occupant of the vehicle in advance in cases where the fuel efficiency of the vehicle is predicted to be degraded in the future travel path.