Abstract: In an embodiment, a magnetic assembly includes: an inner permeance annulus; and an outer permeance annulus connected to the inner permeance annulus via magnets, wherein the outer permeance annulus comprises a peak region with a thickness greater than other regions of the outer permeance annulus.

Abstract: An apparatus includes a main body and a protection mechanism disposed on the main body. The protection mechanism includes a connecting member inserted in the main body and including a post; and a damping member attached on the connecting member away from the main body. The damping member bears an initial impact, before the main body, when the apparatus collides.

Abstract: An electronic device powered by a primary power source includes a switch, a first detection unit, a second detection unit, a warning unit and a secondary power source. The switch is configured for connecting and disconnecting the primary power source and the electronic device. The first detection unit is configured for detecting whether the switch is activated. The second detection unit is configured for detecting whether the primary power source is available if the switch is activated. The warning unit is configured for activating an alarm if the primary power source is unavailable. The secondary power source is configured for supplying electrical power to the first detection unit, the second detection unit and the warning unit.

Abstract: A portable computer includes a base and a supporting member. The base defines a receiving portion. The supporting member includes a hinge member and a support leg. The supporting member is pivotally coupled to the base via the hinge. The support leg is capable of rotating around the hinge member from a first position to a second position. The support leg is received in the receiving portion when the support leg is positioned at the first position. The support leg is configured for supporting the base when the support leg is positioned at the second position.

Abstract: A locking assembly is configured for locking an electronic device to an object. The electronic device includes a panel. The panel includes two opposite first and second surfaces. A first through hole, a second through hole and a third through hole are defined in the panel. The locking assembly includes a rotating wheel, a lockset and a flexible cable. The rotating wheel is rotatably coupled to the first surface. The lockset includes a lock cylinder and is fixed to the first surface. The lock cylinder is extended through the first through hole and exposed from the second surface. The flexible cable is wrapped around the rotating wheel, and includes a locking end and an opposite connecting end. The connecting end is fixed to the rotating wheel. The locking end is extended through the second through hole and the third through hole, and capable of being engaged with the lockset.

Abstract: An apparatus includes a main body and a protection mechanism disposed on the main body. The protection mechanism includes a connecting member inserted in the main body and including a post; and a damping member attached on the connecting member away from the main body. The damping member bears an initial impact, before the main body, when the apparatus collides.

Abstract: An electronic device powered by a primary power source includes a switch, a first detection unit, a second detection unit, a warning unit and a secondary power source. The switch is configured for connecting and disconnecting the primary power source and the electronic device. The first detection unit is configured for detecting whether the switch is activated. The second detection unit is configured for detecting whether the primary power source is available if the switch is activated. The warning unit is configured for activating an alarm if the primary power source is unavailable. The secondary power source is configured for supplying electrical power to the first detection unit, the second detection unit and the warning unit.

Abstract: A portable electronic device includes a main unit and a stand for supporting the main unit. The stand includes a seat rotatablely connected to the main unit and defining a groove; and a rod including a pivoting end which is pivoted on the main unit and a positioning end which is inserted in the groove.

Abstract: A connecting device includes an input portion, a first connecting member, a second connecting member, a wire and an output portion. The input portion is configured for electrically connecting to one of the two electronic devices. The first connecting member includes a first surface. The first surface forms a number of first electrical contacts electrically connected to the input portion. The output portion is configured for electrically connecting to the other electronic devices. The second connecting member includes a second surface, the second surface forms a number of second electrical contacts electrically connected to the output portion via the wire. The first and second connecting members magnetically attract each other so that the first and the second surface contact each other, and as a result, the first and second electrical contacts communicate with each other.

Abstract: A method and system for measuring the signal deviation are applied to an optical recording/reproducing apparatus. The optical recording/reproducing apparatus comprises an optical pickup head for receiving Differential Push Pull (DPP) signals reflected from an optical recording medium to trace the tracks on the surface of the optical recording medium. The DPP signal comprises a Main beam Push Pull (MPP) signal and a Sub-beam Push Pull (SPP) signal. The method firstly receives the MPP signal and the SPP signal to generate an MPP waveform and an SPP waveform separately. Then, the MPP waveform and the SPP waveform are combined to generate an amplitude waveform function. Finally, according to the amplitude waveform function, a phase difference between the MPP signal and the SPP signal is estimated. An adjusting direction can be further determined according to a relative position between the SPP waveform and the MPP waveform.

Abstract: A backupholstery adjustment device for a wheelchair includes a wheelchair having a horizontally and/or obliquely adjusted backupholstery which has a pair of upper positioning rods and a pair of lower positioning rods spacedly secured to a plurality of V-shaped linking plates on inward arcuate lateral sides thereof, a pair of upper and a pair of lower adjustment pieces respectively secured to the upper and lower portions of a pair of L-shaped handles through a plurality of clamping plates. The upper adjustment pieces each has a slit abutting a stopping portion in the top insertable by the pair of upper positioning rods and a plurality of grooves formed inside for selectively engaging the upper positioning rods. The lower adjustment pieces each has a slit abutting a stopping portion, too, insertable by the pair of lower positioning rods and a single groove engageable within the lower positioning rods.

Abstract: A method and system for measuring the signal deviation are applied to an optical recording/reproducing apparatus. The optical recording/reproducing apparatus comprises an optical pickup head for receiving Differential Push Pull (DPP) signals reflected from an optical recording medium to trace the tracks on the surface of the optical recording medium. The DPP signal comprises a Main beam Push Pull (MPP) signal and a Sub-beam Push Pull (SPP) signal. The method firstly receives the MPP signal and the SPP signal to generate an MPP waveform and an SPP waveform separately. Then, the MPP waveform and the SPP waveform are combined to generate an amplitude waveform function. Finally, according to the amplitude waveform function, a phase difference between the MPP signal and the SPP signal is estimated. An adjusting direction can be further determined according to a relative position between the SPP waveform and the MPP waveform.