| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide small-sized optical communication equipment with low power consumption capable of correctly reproducing a received burst signal. <P>SOLUTION: In a station side device 1, an edge detection circuit 20 compares a burst signal BD with a clock signal CLK in phase and outputs a phase difference signal showing a phase difference ϕ between them. A control amount setting part 21 determines whether the phase of the burst signal has to be corrected on the basis of the phase difference signal and outputs a control signal CNT. A phase control part 22 controls the phase of the burst signal BD and outputs the burst signal BD to a flip-flop 23 on the basis of the control signal CNT and the clock signal CLK. Then, a data stabled part of the burst signal is sampled even when phase fluctuation of a received burst signal is large. Therefore, the burst signal can be correctly reproduced. In addition, the equipment can be miniaturized and low power consumption can be realized because the equipment has a configuration simpler than in the conventional manner. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
