Signal regeneration device, optical receiver, and signal...

Details Signal regeneration device, optical receiver, and signal... Signal regeneration device, optical receiver, and signal...

2006-03-24

2010-12-14

Tran, Dzung D (Department: 2613)

Optical communications

Optical repeater system

Regenerative

C398S155000, C398S161000

Reexamination Certificate

active

07853152

ABSTRACT:
A signal regeneration device which makes an extracted clock signal highly accurate while maintaining superior receiving sensitivity. To this end, a device of the present invention is configured to have a branch section for branching an input electrical signal which has been demodulated from a differential phase-shift modulated state; a first filter for equalizing a waveform of one of the demodulated electrical signals branched by the branch section; a clock recovery section for recovering a clock signal from the demodulated electrical signal whose waveform has been equalized by the first filter; and a data regeneration section for regenerating a data signal from a remaining one of the demodulated electrical signals branched by the branch section and from a clock signal recovered by the clock recovery section.

REFERENCES:
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Japanese Patent Office Action mailed Aug. 31, 2010 for corresponding Japanese Patent Application No. 2005-349406.

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