Abstract: A structure of a voice coil assembly includes a plate, a top board, suspending arms and fixtures. The plate has a top and two opposite sides. The top board is disposed on the top of the plate. The suspending arms extend from the two sides of the plate and are connected to the fixtures. A pair of resilient sections is provided between the suspending arms and the fixtures. The resilient sections are formed in a curved, arcuate or wavy shape. The suspending arm has a cross-section in a flat shape.

Abstract: A transmission system includes two or more independent chambers, in each of which shafts with gears thereon are provided for rolling in synchronous motion, and a carrier with adjustable gear devices on a bottom thereof. Each of the adjustable gear devices has a base, a movable rack member, vertical springs and horizontal springs. The movable rack member is connected to the base to be moved along a horizontal direction. The vertical springs are provided between the base and the carrier to urge the adjustable gear device along a vertical direction. The movable rack member has a rack portion to be meshed with the gears of the shafts, such that the carrier is moved by the gears to cross the chambers. With the movement of the movable rack member both along the horizontal and the vertical direction, the carrier is transported in a smooth, synchronous, skid-proof, stable and real-time motion during the crossing chamber process.

Abstract: A telephone for the visually impaired is disclosed, which comprises a frame and a receiver. The frame is configured with an operation panel and a receiver holder, whereas there are a keypad being disposed at a position on top of the operation panel and a first protruding dot being disposed at a position beneath the operation panel. Moreover, the receiver holder is an open structure that is formed extruding from a side of the frame and is configured with a pressing part. With the aforesaid devices, any visually impaired person is able to place the receiver on the receiver holder in a trouble-free manner while enabling the pressing part to be compressed exactly by the receiver; and he/she is able to recognize the exact location of the keypad for placing a dial as soon as the first protruding dot is felt by the hand of the visually impaired person.

Abstract: A method for manufacturing a loudspeaker having a voice coil assembly includes the steps of: producing a flat voice coil; placing the voice coil into an injecting mold of a vibrating slab; forming a locating section to secure the voice coil; and assembling a loudspeaker by coupling the vibrating slab with a membrane together to produce a better sound quality. Furthermore, upper suspending arms provided on respective sides of the vibrating slab may be cut to lower the rigidity character of the vibrating slab and to increase the vibrating effect.