Communications test receiver

Details Communications test receiver Communications test receiver

2006-02-02

2010-02-02

Tran, Dzung D (Department: 2613)

Optical communications

Diagnostic testing

Fault detection

C398S025000, C398S029000

Reexamination Certificate

active

07657177

ABSTRACT:
Distortion of an optical signal transmitted over a fibre optic link is characterized by a receiver including a photodetector for converting optical radiation into an electrical signal. A delay line delays the electrical signal. At least two delay line taps drive a register that stores plural values corresponding with different delayed replicas of the electrical signal. Signals commensurate with the values are externally provided to a signal distortion analyser for analysis of the values to determine the optical signal distortion.

REFERENCES:
patent: 5796820 (1998-08-01), Sasada
patent: 7310315 (2007-12-01), Horiuchi et al.
patent: 7426350 (2008-09-01), Sun et al.
patent: 2002/0154373 (2002-10-01), Akashi
patent: 2004/0146099 (2004-07-01), Denny et al.
patent: 2005/0089332 (2005-04-01), Margalit
patent: 2006/0168483 (2006-07-01), Sherlock et al.

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