Abstract: An electronic device with a multiple-direction rotation connector includes a main body and a pivoting structure. The main body has a bearing structure while the pivoting structure pivots on the bearing structure to rotate along the first and second axes. The pivoting structure has two convex ends, while the bearing structure has two opposite concaves adapted to receive the convex ends respectively. One of the concaves is formed with a protruding column that is adapted to slide within a groove formed on the pivoting structure. Thereby, the connector can be accommodated in the main body and rotates in multiple directions for the preferred operation.

Abstract: The present invention provides a bi-directional electronic device with USB interface, comprising a two-in-one USB connector and a USB OTG controller. The two-in-one USB controller has a USB standard-A type male connector and a USB standard-B type female controller, disposed in housing; the two-in-one USB controller is designed so that only the selected USB standard-A type male connector and the USB standard-B type controller can be used for plugging in. The USB OTG controller determines the operation mode of the bi-directional electronic device with the USB interface based on the plugging position of the USB standard-A type male controller and the USB standard-B type controller of the two-in-one controller.

Abstract: The present invention provides a portable electronic device with an electronic lock, comprising a rotary encoder and a micro-controller. The rotary encoder is rotatable to generate encoding signals. The micro-controller is connected to the rotary encoder and receives the encoding signals. The micro-controller then uses the encoding signals to determine whether the electronic device can be used.

Abstract: The present invention provides a bi-directional electronic device with USB interface, comprising a two-in-one USB connector and a USB OTG controller. The two-in-one USB controller has a USB standard-A type male connector and a USB standard-B type female controller, disposed in housing; the two-in-one USB controller is designed so that only the selected USB standard-A type male connector and the USB standard-B type controller can be used for plugging in. The USB OTG controller determines the operation mode of the bi-directional electronic device with the USB interface based on the plugging position of the USB standard-A type male controller and the USB standard-B type controller of the two-in-one controller.

Abstract: The present invention discloses an external optical storage device having a dustproof cover comprising an internal optical storage device and an external enclosure. The optical storage device has at least one slot on its panel, and the external enclosure comprises a box body, a front cover, and a dustproof cover. The box body is a structure in the shape of a box and has an interior space for containing and installing the internal optical storage device. The front cover is hollow and disposed at the front panel of the box body, and the dustproof cover is disposed on the front cover at the position in front of the slot. If the internal optical storage device is not in use, the dustproof cover seals the slot and if the internal optical storage device is in use, the dustproof cover can be lifted to expose the slot.