Abstract: An image display system for a vehicle includes a plurality of image display devices. Each of the image display devices diagnoses a failure of a self-circuit and outputs a diagnosis result. When one of the image display devices to display security requirement information is determined to be in failure based on the diagnosis result, the security requirement information is output to another of the image display devices determined to be normal.

Abstract: A power supply circuit is provided for a vehicle. The vehicle includes a battery, a calculation processing device, and a storage device. The storage device stores data used by the calculation processing device. The power supply circuit detects whether power supply to the power supply circuit is turned on based on output information from the battery.

Abstract: An infant cry muffler cover includes: a cover body including a sound insulation member for insulating a cry of an infant, the cover body having a sheet shape to cover the infant held on a front side of a body of a guardian; an opening portion defined at a central portion of an upper side of the cover body to be opened toward the infant at a neck of the guardian, the opening portion being curved in a direction away from the guardian; a neck string that connects both ends of the opening portion to each other to be put around the neck of the guardian; and a back string that connects both ends of the upper side of the cover body to each other to be put around a back of the guardian.

Abstract: An in-vehicle display system includes: display apparatuses that are mounted in a vehicle; and a single control apparatus that is configured to generate image information, output the image information to assigned one of the display apparatuses, and cause a display apparatus assigned to display the image information. A certain display apparatus that is at least one of the display apparatuses includes a first detection portion configured to detect malfunction, a second detection portion configured to detect malfunction of the control apparatus, a transmission portion configured to transmit detection information indicating the malfunction of the certain display apparatus, and a substitute control portion configured to acquire a vehicle signal, generate image information, and display the image information.

Abstract: An image display system for a vehicle includes a plurality of image display devices. Each of the image display devices diagnoses a failure of a self-circuit and outputs a diagnosis result. When one of the image display devices to display security requirement information is determined to be in failure based on the diagnosis result, the security requirement information is output to another of the image display devices determined to be normal.

Abstract: A vehicle-mounted alert system includes display devices equipped to a vehicle, a sight line detection device detecting driver's sight line, a surrounding monitoring device detecting a presence of an object near the vehicle and a direction of the object with respect to the vehicle, and an alert control device controlling the display devices to display an alert image for informing the driver of the presence of the object detected by the surrounding monitoring device. The alert control device controls the display device located in a direction of the sight line of the driver to display the alert image, and then, controls the display devices so that the alert image successively moves from the display device located in the direction of the sight line of the driver to the display device determined based on the direction of the object detected by the surrounding monitoring device.

Abstract: An in-vehicle display system includes: display apparatuses that are mounted in a vehicle; and a single control apparatus that is configured to generate image information, output the image information to assigned one of the display apparatuses, and cause a display apparatus assigned to display the image information. A certain display apparatus that is at least one of the display apparatuses includes a first detection portion configured to detect malfunction, a second detection portion configured to detect malfunction of the control apparatus, a transmission portion configured to transmit detection information indicating the malfunction of the certain display apparatus, and a substitute control portion configured to acquire a vehicle signal, generate image information, and display the image information.

Abstract: A vehicle-mounted alert system includes display devices equipped to a vehicle, a sight line detection device detecting driver's sight line, a surrounding monitoring device detecting a presence of an object near the vehicle and a direction of the object with respect to the vehicle, and an alert control device controlling the display devices to display an alert image for informing the driver of the presence of the object detected by the surrounding monitoring device. The alert control device controls the display device located in a direction of the sight line of the driver to display the alert image, and then, controls the display devices so that the alert image successively moves from the display device located in the direction of the sight line of the driver to the display device determined based on the direction of the object detected by the surrounding monitoring device.

Abstract: A radio control device includes, a transmission unit that transmits, to the radio relay device, a first frame which has a plurality of subframes each having a fixed time length, the plurality of subframes including one or more subframes that store respective identifiers of the plurality of radio devices and the radio relay device, a reception unit that receives a second frame which has one or more subframes that store the identifiers of the plurality of radio devices and the radio relay device from the radio relay device, and a detection unit that detects a time difference between a transmission time point of the subframe that stores the identifiers of the respective devices in the first frame and a reception time point of the subframe that stores the identifiers of the respective devices in the second frame received.