Abstract: A clamping device for clamping a portable electronic device is provided. The clamping device includes a mounting board and a clamping mechanism. The clamping mechanism includes two adjusting members, two sliding blocks, and a sliding rail. The adjusting members can adjust the positions of the sliding blocks on the sliding rail. The sliding rail is selectively attached to the mounting board, either horizontally or vertically.

Abstract: A method and system for decompressing a compressed file is disclosed in this invention, the method comprising: reading a compressed data block from the compressed file; decompressing the compressed data block; outputting the decompressed data for storage into a decompressed file; deleting the compressed data block that was decompressed from the compressed file. The proposed method and system in this invention can reduce the unnecessary repeated data between compressed data and decompressed data. The storage space requirement will be reduced during decompression, and the existing compression/decompression algorithms need not be changed by using this invention. Thus, this invention is easy to be integrated into existing compression/decompression tools.

Abstract: A key testing apparatus (100) is provided. The key testing apparatus includes a base (11) and an actuator (12). The actuator includes a testing member (17) and a mounting member (18). The mounting member includes at least one base board (181) fixed to the base, a lower board (182), a mounting board (183), and a mounting sheet (185). The lower board is adjustably attached to the base board. The mounting board is adjustably attached to the lower board. The mounting sheet is adjustably attached to the mounting board. The clamping device includes a base desk (131), a clamping platform (132), at least one first clamping board (133) and second clamping board (134). The base desk is adjustably attached to the base. The clamping platform, at least one first clamping board, and at least one second clamping board are adjustably attached to the base desk.

Abstract: A clamping device for clamping a portable electronic device is provided. The clamping device includes a mounting board and a clamping mechanism. The clamping mechanism includes two adjusting members, two sliding blocks, and a sliding rail. The adjusting members can adjust the positions of the sliding blocks on the sliding rail. The sliding rail is selectively attached to the mounting board, either horizontally or vertically.

Abstract: A method and system for decompressing a compressed file is disclosed in this invention, the method comprising: reading a compressed data block from the compressed file; decompressing the compressed data block; outputting the decompressed data for storage into a decompressed file; deleting the compressed data block that was decompressed from the compressed file. The proposed method and system in this invention can reduce the unnecessary repeated data between compressed data and decompressed data. The storage space requirement will be reduced during decompression, and the existing compression/decompression algorithms need not be changed by using this invention. Thus, this invention is easy to be integrated into existing compression/decompression tools.

Abstract: A clamping device (100) for clamping a portable electronic device is provided. The clamping device includes a mounting board (12) and a clamping mechanism (14). The clamping mechanism includes at least one adjusting member (141), at least one sliding block (145), and a sliding rail (146). The sliding rail is selectively attached to the mounting board, either horizontally or vertically. Each respective sliding block is slidably mounted to the sliding rail. Each adjusting member respectively engages with a corresponding sliding block and is configured to drive the corresponding sliding block to move along the sliding rail.

Abstract: A key testing apparatus (100) is provided. The key testing apparatus includes a base (11) and an actuator (12). The actuator includes a testing member (17) and a mounting member (18). The mounting member includes at least one base board (181) fixed to the base, a lower board (182), a mounting board (183), and a mounting sheet (185). The lower board is adjustably attached to the base board. The mounting board is adjustably attached to the lower board. The mounting sheet is adjustably attached to the mounting board. The clamping device includes a base desk (131), a clamping platform (132), at least one first clamping board (133) and second clamping board (134). The base desk is adjustably attached to the base. The clamping platform, at least one first clamping board, and at least one second clamping board are adjustably attached to the base desk.

Abstract: A step motor includes a spindle, a magnet unit mounted around the spindle, and a stator assembly sleeved over the magnet unit. The stator assembly includes at least one coil-and-yoke unit having a coil support, a coil wound around the coil support, and a pair of magnetic yokes mounted in the coil support. The stator assembly further includes an outer tube sleeved over the coil-and-yoke unit. A fixing plate and a cover unit are mounted to opposite ends of the stator assembly. The spindle is journalled in the fixing plate and the cover unit. The coil support includes a surrounding wall having notches formed in an inner circumferential surface thereof and angularly spaced apart at equal intervals. Each of the magnetic yokes includes excitation fingers inserted in the notches. The excitation fingers of the magnetic yokes are interdigitated.

Abstract: A step motor includes a spindle, a magnet unit mounted around the spindle, and a stator assembly sleeved over the magnet unit. The stator assembly includes at least one coil-and-yoke unit having a coil support, a coil wound around the coil support, and a pair of magnetic yokes mounted in the coil support. The stator assembly further includes an outer tube sleeved over the coil-and-yoke unit. A fixing plate and a cover unit are mounted to opposite ends of the stator assembly. The spindle is journalled in the fixing plate and the cover unit. The coil support includes a surrounding wall having notches formed in an inner circumferential surface thereof and angularly spaced apart at equal intervals. Each of the magnetic yokes includes excitation fingers inserted in the notches. The excitation fingers of the magnetic yokes are interdigitated.