Abstract: A vehicular camera unit includes a camera housing, an oblique forward-facing camera, and an oblique rearward-facing camera. The camera housing is attached to a side of a vehicle. The oblique forward-facing camera is provided in the camera housing. The oblique rearward-facing camera is provided in the camera housing. The oblique rearward-facing camera is disposed forward of the oblique forward-facing camera and on an outer side of the oblique forward-facing camera in a vehicle width direction of the vehicle.

Abstract: Sound source enhancement technology is provided that is capable of improving sound source enhancement capabilities in accordance with settings of usage and applications. A PSD optimization device includes a PSD updating unit that takes a target sound PSD input value {circumflex over (?)}?S(?, ?), an interference noise PSD input value {circumflex over (?)}?IN(?, ?), and a background noise PSD input value {circumflex over (?)}?BN(?, ?) as input, and generates a target sound PSD output value ?S(?, ?), an interference noise PSD output value {circumflex over (?)}?IN(?, ?), and a background noise PSD output value {circumflex over (?)}?BN(?, ?), by solving an optimization problem for a cost function relating to a variable uS representing a target sound PSD, a variable uIN representing an interference noise PSD, and a variable uBN representing a background noise PSD.

Abstract: This electric work machine is provided with a wireless communication unit for performing wireless communication with another electric work machine and can be switched by a switching switch between a linked operation mode in which the electric work machine works together with another electric work machine, and an independent operation mode in which the electric work machine works alone. When the switch is switched from the independent operation to the linked operation mode, a control unit for the electric work machine automatically searches for another electric work machine with which the electric work machine can communicate, and transitions the work machines to a linked state when the other electric work machine is detected and pairing registration is possible. When another linkable electric work machine is not detected, the search is continued.

Abstract: A driving tool is capable of suppressing an increase in electric power consumed by an operation of a preventive mechanism. The driving tool includes a striking part, a housing, a pressure accumulator chamber, a pressure chamber, a route, an operating member, a contacting member, and a drive unit. The drive unit becomes an operating state when operating force is applied to an operating member and the contacting member contacts with a workpiece. The driving tool includes a solenoid and a control unit, the solenoid being started when electric power is supplied and preventing the drive unit becoming the operating state when a predetermined time with the contacting member not contacting with the workpiece lapses while the operating force is applied to the operating member, the control unit generating an output signal indicating that the predetermined time lapses. The control unit includes a timer circuit that requires no program.

Abstract: The present invention maintains compatibility with a power tool having no wireless connection function, and prevents malfunctions due to linked operation. A battery pack that supplies a driving power source to a power tool, said battery pack comprising: a wireless communication unit for communicating wirelessly with an external device; and a control unit that performs a first determination process to determine the state of a wireless communication connection with the external device, wherein when the control unit has determined in the first determination process that wireless communication has been established, the control unit transmits a linking command to the external device, and during a state in which the wireless communication has been established, the control unit can perform a communication connection cancellation process to cancel the wireless communication.