Abstract: An apparatus and a method of synchronizing and interpolating axes of a multi-system are provide. According to the number M of operating systems, the apparatus analyzes a multi-axis process program of N axes to generate M system process programs, wherein, N?M?2. A synchronous code is added to the M system process programs. According to the specifications of the operating systems, a delay time compensation program is added to the M system process programs to ensure the synchronization of the systems therebetween. The characteristics of the controllers and the servos of the operation systems are adjusted to unify the characteristics of the systems. The M system process programs are outputted to the operating systems correspondingly.

Abstract: A light emitting device includes a plurality of micro diodes, which are electrically connected to constitute a bridge rectifier circuit. Each branch of the bridge rectifier circuit includes a single micro diode or a plurality of micro diodes. The light emitting device is electrically connected to an AC power source, which alternately drives the light emitting device in two current loops. Therefore, the micro diodes in two current loops of the bridge rectifier circuit emit light by turns.

Abstract: A hydraulic shock absorbing device fastened inside either blade of a bicycle front fork to absorb shocks, the device including a damping liquid chamber and a damping liquid cell respectively molded from rubber or elastic material and connected together through a partition plate having liquid passages for the passing of a damping liquid between the damping liquid chamber and the damping liquid cell to let shocks transmitted from the bicycle front fork be absorbed. Shock absorbing rubber blocks or springs may be mounted on two opposite ends of the hydraulic shock absorbing device when it is installed in the bicycle front fork.