| 摘要 |
PURPOSE:To surely receive a control signal by giving an output of a timing component extraction circuit of a digital recovery repeater to an input of a peak detection circuit and connecting the output of the peak detection circuit to an input of a control signal reception circuit. CONSTITUTION:An output signal of an equalizing amplifier circuit 1 is given to a 1st input of the identification recovery circuit 2 and a input of a timing component extraction circuit 4 of a timing circuit 3. The output of the timing component extraction circuit 4 is connected to the input of a timing wave generating circuit 5 and a peak detection circuit 5. The output of the timing wave generating circuit 5 of the timing circuit 3 is connected to the 2nd input of the said identification recovery circuit 2. Moreover, the output of the peak detection circuit 6 is connected to the input of the control signal reception circuit. A signal D outputted to an output line 10 of the peak detection circuit 6 represents the signal detecting the peak of the signal C and the control signal A is accurately demodulated.
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