System and method for adaptively selecting a signal...

Details System and method for adaptively selecting a signal... System and method for adaptively selecting a signal...

2005-07-05

2005-07-05

Pascal, Leslie (Department: 2633)

Optical communications

Diagnostic testing

Determination of communication parameter

C398S027000, C398S037000, C398S026000, C398S210000, C375S317000, C375S318000, C375S346000

Reexamination Certificate

active

06915076

ABSTRACT:
An apparatus and method for detecting a signal in an optical data network is disclosed. A peak power level and an average power level are measured for an optical input to an optical detector. A threshold power level is associated with each average power level that is sufficient to distinguish a data signal form optical noise at the average power level. A signal is detected if the measured peak power level exceeds the threshold power level appropriate for the average power level. In one embodiment, a threshold value of a ratio of the peak power level to the average power level is calculated and a signal is detected if the ratio of the measured peak power level to the average power exceeds the threshold value.

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Mindspeed Technologies. Data Sheet—CX60083-1510 Gbps High Gain Limiting Amplifier.Rev. v4b, May 4, 2001, pp. 1-12.

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