Abstract: There are provided: an input torque detection part configured to detect an input torque variation value; a first filter processing part configured to extract and obtain, from the input torque variation value, a post-first-filter variation value that varies with a specific variation period; a vibration reduction control part configured to calculate an opposite-phase torque variation value whose phase is opposite to a phase of the post-first-filter variation value, and execute vibration reduction processing; and a second filter processing part configured to extract and obtain, from the post-first-filter variation value, a post-second-filter variation value that varies with a period longer than the specific variation period. The vibration reduction control part is configured to cause the vibration reduction processing to be brought into a non-execution state based on the post-second-filter variation value.

Abstract: An optical device includes: a multi-mode interference waveguide that includes a first end portion in a first direction and a second end portion in opposite direction to the first direction; a first port that is arranged in the first end portion; a second port that is arranged in the first end portion; a third port that is arranged in the second end portion and that is positioned at a center of the second end portion in the second direction; and two fourth ports that are arranged in the second end portion and that are positioned on both sides of the third port in the second direction.

Abstract: An optical device includes: a coupler that includes a first port, a second port, a third port, a fourth port, and a multimode interference waveguide; a first waveguide that is optically connected to the first port, the first waveguide being configured to guide light that is input to the coupler via the first port; a second waveguide that is optically connected to the second port, the second waveguide being configured to guide light that is input to the coupler via the second port; a third waveguide that is optically connected to the third port, the third waveguide being configured to guide light that is output from the coupler via the third port; and a fourth waveguide that is optically connected to the fourth port and, the fourth waveguide being configured to guide light output from the coupler via the fourth port.

Abstract: A vehicle vibration control device includes: a motor generator connected via a motor shaft to a power transmission path between a crankshaft of an engine and a drive axle that transmits a drive torque to a tire; and a motor generator control portion executing control of an output torque which is actually output by the motor generator. The motor generator control portion includes a damper torque calculation section that acquires information on a crank angle and a motor angle to calculate a damper torque generated by a damper, an explosion cycle calculation section, a reverse phase torque calculation section, a delay time calculation section, a compensation time calculation section, a first compensation time calculation section, a torque correction amount calculation section, and a command output section.

Abstract: A vehicle vibration control device includes: a motor generator connected via a motor shaft to a power transmission path between a crankshaft of an engine and a drive axle that transmits a drive torque to a tire; and a motor generator control portion executing control of an output torque which is actually output by the motor generator. The motor generator control portion includes a damper torque calculation section that acquires information on a crank angle and a motor angle to calculate a damper torque generated by a damper, an explosion cycle calculation section, a reverse phase torque calculation section, a delay time calculation section, a compensation time calculation section, a first compensation time calculation section, a torque correction amount calculation section, and a command output section.

Abstract: An optical card (100) with a built-in IC module comprises a base card (101), an optical recording part (11) incorporated into the base card (101), and an IC module (120) mounted on the base card (101). The IC module (120) has a base (122), an IC chip unit (121) mounted on one of the surfaces of the base (122), and a terminal part (123) formed on the other surface of the base (122). The terminal part (123) is disposed in a region corresponding to the optical recording part (110) so as to be exposed to view. The IC chip unit (121) is disposed outside the region corresponding to the optical recording part (110).