Abstract: A running watch which is a wearable device includes a position detection unit (a GPS module), a sensor unit including at least one of an acceleration sensor, a geomagnetic sensor, and an atmospheric pressure sensor, and a processing unit electrically connected to the position detection unit and the sensor unit. The processing unit determines a behavior state of a user based on signals from the position detection unit and the sensor unit and controls at least two of the position detection unit, the acceleration sensor, the geomagnetic sensor, and the atmospheric pressure sensor based on the behavior state.

Abstract: An actuator includes: an electrostatic actuation mechanism including a stationary electrode and a movable electrode; a first movable part driven by the electrostatic actuation mechanism; a first elastic support part that elastically supports the first movable part; an electret formed in at least one of the stationary electrode and the movable electrode; and a drive control unit that controls application of voltage to the electrostatic actuation mechanism. In the actuator a plurality of stable states are set in which the first movable part is positioned at a stable position at which an electrostatic force generated by the electret matches with an elastic force exerted by the first elastic support part or at a stable position near such stable position. By applying a voltage to the electrostatic actuation mechanism, the first movable part may be displaced from any stable position to another stable position.

Abstract: A running watch which is a wearable device includes a position detection unit (a GPS module), a sensor unit including at least one of an acceleration sensor, a geomagnetic sensor, and an atmospheric pressure sensor, and a processing unit electrically connected to the position detection unit and the sensor unit. The processing unit determines a behavior state of a user based on signals from the position detection unit and the sensor unit and controls at least two of the position detection unit, the acceleration sensor, the geomagnetic sensor, and the atmospheric pressure sensor based on the behavior state.

Abstract: An information processing device includes: an information acquisition unit that acquires biometric information from a biometric sensor; a processing unit that generates first report information for reporting stamina information indicating stamina of a user and second report information different from the first report information based on the biometric information; and an output unit that outputs the first report information and the second report information. The second report information includes at least one piece of information among second stamina information which indicates the stamina of the user and is different from the stamina information, third stamina information regarding another user, advice information or alert information regarding an activity of the user, and exercise continuable information regarding the user.

Abstract: A performance information calculation method executed by an apparatus carried by a user who makes motion accompanied by cyclic body motion, and the method includes detecting motion cycle of the user, setting a reception action suspended period, during which a positioning satellite signal is not received, in each predetermined calculation cycle on the basis of the motion cycle, and calculating performance information in each of the calculation cycles on the basis of the positioning satellite signal received in a period other than the reception action suspended period.

Abstract: An electrostatic induction conversion device includes: an input-side electrostatic actuator that includes a first fixed electrode and a first movable electrode facing the first fixed electrode; and an output-side electrostatic actuator that includes a second movable electrode linked to the first movable electrode via a link mechanism member, which increases or decreases a displacement quantity representing an extent of displacement occurring at the first movable electrode, and a second fixed electrode facing the second movable electrode, wherein: a permanently charged layer is deposited on an electrode surface either on a movable electrode side or on a fixed electrode side, at the input-side electrostatic actuator and the output-side electrostatic actuator.

Abstract: An actuator includes: an electrostatic actuation mechanism including a stationary electrode and a movable electrode; a first movable part driven by the electrostatic actuation mechanism; a first elastic support part that elastically supports the first movable part; an electret formed in at least one of the stationary electrode and the movable electrode; and a drive control unit that controls application of voltage to the electrostatic actuation mechanism. In the actuator a plurality of stable states are set in which the first movable part is positioned at a stable position at which an electrostatic force generated by the electret matches with an elastic force exerted by the first elastic support part or at a stable position near such stable position. By applying a voltage to the electrostatic actuation mechanism, the first movable part may be displaced from any stable position to another stable position.

Abstract: A determination unit determines a first direction appearing in the distribution of a detected acceleration by an acceleration sensor which configured to be worn on a body of a user. A calculation unit calculates exercise amounts during a moving exercise of the user using a variation cycle of the value of the detected acceleration along the first direction.

Abstract: An electrostatic induction conversion device includes: an input-side electrostatic actuator that includes a first fixed electrode and a first movable electrode facing the first fixed electrode; and an output-side electrostatic actuator that includes a second movable electrode linked to the first movable electrode via a link mechanism member, which increases or decreases a displacement quantity representing an extent of displacement occurring at the first movable electrode, and a second fixed electrode facing the second movable electrode, wherein: a permanently charged layer is deposited on an electrode surface either on a movable electrode side or on a fixed electrode side, at the input-side electrostatic actuator and the output-side electrostatic actuator.