Abstract: A displacement sensing system is disclosed. Two image capturing devices are settled at to opposite ends of a coordinate axis of the planar area, respectively, for capturing images of the planar area and an object placed thereon. Four pre-established LUT databases and an interactive four-matrix lookup table process are implemented to determine actual coordinates of the object on in the planar area.

Abstract: A trigger device includes a retaining frame, a swing arm, a toggle switch, a resilient member and a touch component. An end of the swing arm is connected to the middle of the retaining frame, and another end of the swing arm is connected to a magnetic sensor, and an end of the toggle switch is pivotally connected to the top of the retaining frame. The swing arm forms a pressing rod disposed on the toggle switch and pressed for swinging the swing arm. The retaining frame and swing arm are connected to the resilient member, and the touch component is mounted into the retaining frame and installed at another end of the toggle switch. An elastic button is installed between the touch component and the toggle switch for pressing the toggle switch. Obvious feel and tough can be provided to enhance the operability and convenience of the trigger device.

Abstract: A displacement sensing system is disclosed. Two image capturing devices are settled at to opposite ends of a coordinate axis of the planar area, respectively, for capturing images of the planar area and an object placed thereon. Four pre-established LUT databases and an interactive four-matrix lookup table process are implemented to determine actual coordinates of the object on in the planar area.

Abstract: A reflective reading structure with different optical paths switch for portable computer mainly takes a portable computer as main body, the front side of which a reading end is arranged and acted as an optical path for reading barcode. A securing column, respectively arranged at upper edge of two (light and right) sides of the reading end, is respectively pivoted to a long supporting frame, which has a turning function, and front side of which is finally pivoted a casting element that is corresponded to the reading end and has a turning function whereby, applying the reflecting function of the casting element and cooperating the turning function thereof, the light irradiated from the portable computer is reflected in order to scan barcodes at different positions.

Abstract: A trigger device includes a retaining frame, a swing arm, a toggle switch, a resilient member and a touch component. An end of the swing arm is connected to the middle of the retaining frame, and another end of the swing arm is connected to a magnetic sensor, and an end of the toggle switch is pivotally connected to the top of the retaining frame. The swing arm forms a pressing rod disposed on the toggle switch and pressed for swinging the swing arm. The retaining frame and swing arm are connected to the resilient member, and the touch component is mounted into the retaining frame and installed at another end of the toggle switch. An elastic button is installed between the touch component and the toggle switch for pressing the toggle switch. Obvious feel and tough can be provided to enhance the operability and convenience of the trigger device.

Abstract: A buffer layer structure for the GaN-based semiconductor devices is provided. The buffer layer proposed by the present invention comprises internally at least two sub-layers: a first intermediate layer and a second intermediate layer. Initially, the first intermediate layer is developed on the substrate under a low temperature using silicon-nitride (SixNy, x,y?0). The first intermediate layer is actually a mask having multiple randomly distributed SixNy clusters. Then, a second intermediate layer is developed under a low temperature using aluminum-indium-gallium-nitride (AlwInzGa1-w-zN, 0?w,z<1, w+z?1). The second intermediate layer does not grow directly on top of the first intermediate layer. Instead, the second intermediate layer first grows from the surface of the substrate not covered by the first intermediate layer's mask and, then, overflows to cover the top of the first intermediate layer.