Abstract:
An electronic device having a first body, a second body and a hinge is provided. The first body and the second body are pivoted through the hinge. The hinge includes a sleeve, at least one first positioning member, a shaft and a second positioning member. The first positioning member is inserted into the sleeve. A first end of the shaft passes through the sleeve. The second positioning member is inserted into the shaft. The second positioning member and the first positioning member are linked through magnetic force to fix the position of the shaft.
Abstract:
A mobile device includes at least a speaker, a range detection unit for detecting a distance between the mobile device and a user, and a volume adjustment unit electrically connected to the range detection unit for dynamically adjusting volume of the speaker according to a result of the range detection unit.
Abstract:
A sound broadcasting mechanism and an electronic device using the same are provided. The sound broadcasting mechanism includes a sound box, a sound broadcasting element and a sound enhancing element. The sound broadcasting element is disposed at the surface of the sound box to generate a sound signal. The sound enhancing element is disposed at the surface of the sound box. The sound enhancing element includes a resonating film and a weight increasing element. The resonating film can resonate with the sound signal in a resonating frequency range to enhance the sound intensity of the sound signal in the resonating frequency range. The weight increasing element is attached to the surface of the resonating film. The weight of the weight increasing element is related to the resonating frequency range.