Abstract: A portable disk device includes a protective housing with a containing room and a portable disk disposed inside the containing room via a movable pivot means. The portable disk can be rotated between the retraction and first positions. A torsion means is included to interact with the portable disk and the movable pivot means to store potential energy. A movable component is used to interact with interaction portions to make the portable disk able/unable to have a movement relative to the protective housing. At the retraction position, the portable disk is positioned inside the containing room and the torsion means has the potential energy to slide out the portable disk. After the interaction between the movable component and the interaction portions is released, the portable disk is slid out. Afterward, the portable disk can be placed at the second position and only has the electrical connector being placed outside.

Abstract: A wireless transmission multimedia device includes a peripheral component unit, a processor, a controller, an ultra-wideband (UWB) controller and a decoder. The processor is electrically connected to the peripheral component unit for executing an instruction from the peripheral component unit. The controller is electrically connected to the processor, and issues a control signal according to execution of the instruction. The UWB controller is electrically connected to the controller, and wirelessly communicated with an external UWB interface. In response to the control signal, a data file is controlled to exchange between the UWB controller and the external UWB interface. The decoder is electrically connected to the controller for decoding the data file into a digital signal.

Abstract: A portable disk device includes a protective housing with a containing room and a portable disk disposed inside the containing room via a movable pivot means. The portable disk can be rotated between the retraction and first positions. A torsion means is included to interact with the portable disk and the movable pivot means to store potential energy. A movable component is used to interact with interaction portions to make the portable disk able/unable to have a movement relative to the protective housing. At the retraction position, the portable disk is positioned inside the containing room and the torsion means has the potential energy to slide out the portable disk. After the interaction between the movable component and the interaction portions is released, the portable disk is slid out. Afterward, the portable disk can be placed at the second position and only has the electrical connector being placed outside.