Method for splitting an optical signal into a number of...

Details Method for splitting an optical signal into a number of... Method for splitting an optical signal into a number of...

2006-07-18

2006-07-18

Vanderpuye, Kenneth (Department: 2633)

Optical communications

Multiplex

C398S209000, C398S213000, C398S101000, C398S102000

Reexamination Certificate

active

07079766

ABSTRACT:
A method of splitting an optical data signal starting with an optical data signal split into n equal data sub-signals, and an optical binary auxiliary signal with the same bit rate and phase is added to each optical data sub-signal. Each nth bit of the optical binary auxiliary has a higher level, with the phases of each of the n optical auxiliary signals showing a relative displacement of one bit. As a result, n aggregate signals are generated, each of which is fed to a decision-maker. A decision-maker threshold is set above the amplitude of the data sub-signal and below the amplitude of the aggregate signal. Each decision-maker, therefore, emits an electrical data signal with 1
times the bit rate of the data signal.

REFERENCES:
patent: 4980891 (1990-12-01), Izadpanah
patent: 5285305 (1994-02-01), Cohen et al.
patent: 5457559 (1995-10-01), Saito et al.
patent: 5774246 (1998-06-01), Bulow
patent: 5880866 (1999-03-01), Stolen
patent: 2003/0020985 (2003-01-01), LaGasse et al.

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