SUBSCRIBER DEVICE FOR BURST OPTICAL TRANSMISSION SYSTEM

摘要

PROBLEM TO BE SOLVED: To surely receive only an outgoing burst signal even in the presence of a reflection signal with respect to the subscriber device of the burst optical transmission system where a burst signal is alternately transmitted between a station device and a plurality of the subscriber devices. SOLUTION: A reset pulse generating means 2d generates a 1st reset pulse consisting of a plurality of pulses at a prescribed interval and gives the pulse to a reception signal detection means 2a and a clock phase adjustment means 2b. The reception signal detection means 2a receiving it restores a stored threshold to zero, calculates a threshold for a signal received newly and detects a difference between the new threshold value and a received signal. The clock phase adjustment means 2b receiving the 1st reset pulse adjusts a phase of a clock. A reception signal identification means 2c detects data received from an output difference signal of the reception signal detection means 2a according to the clock outputted from the clock phase adjustment means 2b to identify whether or not a prescribed identification code is in existence in the received data.