Abstract: There is provided an electrical key lock device, including a second gear configured to rotate by driving power received from a motor, a first gear configured to transfer the driving power, received through the rotation of the second gear, to an external rotational element, and a third gear arranged between the second gear and the first gear and configured to transfer the driving power generated by the motor to the first gear. The third gear enables switching between closing and opening of a transfer path of the driving power between the second gear and the first gear.

Abstract: There is provided an electrical key lock device, including a second gear configured to rotate by driving power received from a motor, a first gear configured to transfer the driving power, received through the rotation of the second gear, to an external rotational element, and a third gear arranged between the second gear and the first gear and configured to transfer the driving power generated by the motor to the first gear, The third gear enables switching between closing and opening of a transfer path of the driving power between the second gear and the first gear,

Abstract: [Object] To enable devices to notify of information in a preferred mode depending on a situation in which the plurality of devices operating in cooperation with one another are used. [Solution] Provided is an information processing device including: a control unit configured to select a device caused to perform information notification from a plurality of devices each including a notification unit and cooperating via a network on the basis of information regarding the devices; and an acquisition unit configured to acquire information regarding a user. The control unit selects the device caused to perform the information notification on the basis of the acquired information regarding the user.

Abstract: A mount adapter includes: a camera cone having a length of adjusting a flange focal length between an imaging device provided with an imaging element and an interchangeable lens; a focus detection unit carrying out focus detection from a phase difference; an optical device separating an incident light from the interchangeable lens into an incident light of the imaging element and an incident light of the focus detection unit; and a correction information storage unit storing correction information used for correction of an error between the flange focal length and a distance from a mounting surface of the interchangeable lens to the focus detection unit.

Abstract: A mount adapter includes: a camera cone having a length of adjusting a flange focal length between an imaging device provided with an imaging element and an interchangeable lens; a focus detection unit carrying out focus detection from a phase difference; an optical device separating an incident light from the interchangeable lens into an incident light of the imaging element and an incident light of the focus detection unit; and a correction information storage unit storing correction information used for correction of an error between the flange focal length and a distance from a mounting surface of the interchangeable lens to the focus detection unit.