Abstract: An electrical power supply apparatus is disclosed. The apparatus comprises a plurality of rechargeable battery components, a solar panel and a control unit enclosed in a main body and electrically connected to the rechargeable battery components and the solar panel. The control unit controls the apparatus to alternately use each rechargeable battery component for outputting electrical power, and alternately charging each rechargeable battery component using the solar panel. The control unit further comprises an orientation sensor for detecting the orientation of the main body and determining the state of the apparatus based on the signal received from the orientation sensor.

Abstract: An apparatus and a method for detecting vibration are disclosed. The apparatus comprises a housing, a magnetic structure forming a magnetic field in the housing, and a coil structure in the magnetic field, concentric of the magnetic structure. In response to external vibration, the coil structure and the magnetic structure are movable with respect to each other. The coil structure comprises at least two sets of coils overlapped in space, of which a first coil set is for detecting vibration and a second coil set is for applying control in accordance with a control signal.

Abstract: An apparatus and a method for detecting vibration are disclosed. The apparatus comprises a housing, a magnetic structure forming a magnetic field in the housing, and a coil structure in the magnetic field, concentric of the magnetic structure. In response to external vibration, the coil structure and the magnetic structure are movable with respect to each other. The coil structure comprises at least two sets of coils overlapped in space, of which a first coil set is for detecting vibration and a second coil set is for applying control in accordance with a control signal.

Abstract: An electrical power supply apparatus is disclosed. The apparatus comprises a plurality of rechargeable battery components, a solar panel and a control unit enclosed in a main body and electrically connected to the rechargeable battery components and the solar panel. The control unit controls the apparatus to alternately use each rechargeable battery component for outputting electrical power, and alternately charging each rechargeable battery component using the solar panel. The control unit further comprises an orientation sensor for detecting the orientation of the main body and determining the state of the apparatus based on the signal received from the orientation sensor.

Abstract: An apparatus and a method for detecting vibration are disclosed. The apparatus comprises a housing, a magnetic structure forming a magnetic field in the housing, and a coil structure in the magnetic field, concentric of the magnetic structure. In response to external vibration, the coil structure and the magnetic structure are movable with respect to each other. The coil structure comprises at least two sets of coils overlapped in space, of which a first coil set is for detecting vibration and a second coil set is for applying control in accordance with a control signal.

Abstract: An apparatus and a method for detecting vibration are disclosed. The apparatus comprises a housing, a magnetic structure forming a magnetic field in the housing, and a coil structure in the magnetic field, concentric of the magnetic structure. In response to external vibration, the coil structure and the magnetic structure are movable with respect to each other. The coil structure comprises at least two sets of coils overlapped in space, of which a first coil set is for detecting vibration and a second coil set is for applying control in accordance with a control signal.