Abstract: A computer-implemented system includes one or multiple application devices and a voice-controlled storage device. Multiple voice commands may be issued to multiple application devices simultaneously or separately, or to the same application device separately. The voice-controlled storage device is configured to perform content identification and voiceprint recognition on the voice commands. Therefore, each requestor may be allowed to operate the voice-controlled storage device in a corresponding operation mode according to respective authorization level.

Abstract: A mobile phone includes a upper casing having a rail unit, a lower casing having a groove unit, and a slidable-and-rotatable mechanism that includes a slide auxiliary member, a rotatable member and a coupler shaft and that interconnects the upper and lower casings in such a manner that an assembly of the upper casing, the slide auxiliary member and the rotatable member is rotatable about the coupler shaft to a predetermined angle with respect to the lower casing once the assembly is moved to a predetermined position relative to the lower casing by virtue of sliding engagement between the rail unit and the groove unit.

Abstract: A mobile communication device is disclosed. A housing includes a receiving portion. An antenna is detachably disposed in the receiving portion and includes a first buckling portion. A rotating fastener is pivoted to the housing and includes a second buckling portion movably engaging the first buckling portion to fix the antenna to the housing.