Duo-binary encoder and optical duo-binary transmission...

Details Duo-binary encoder and optical duo-binary transmission... Duo-binary encoder and optical duo-binary transmission...

2005-06-21

2005-06-21

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Phase or time of phase change

C341S137000

Reexamination Certificate

active

06909386

ABSTRACT:
An optical duo-binary transmission apparatus using an optical duo-binary transmission method is disclosed. The apparatus includes a duo-binary encoder that performs parallel processing. The duo-binary encoder includes a level change detection unit for detecting that levels of data input signals of N channels input at an nthinput of channels change from 0 to 1, or from 1 to 0; a judgment unit for judging whether a number of level changes detected by the level change detection unit is odd or even; and a toggle unit for toggling an output signal of the judgment unit when the number of level change is odd. The encoder also includes an intermediate signal generation unit for determining whether phases of other channels are shifted or not, according to an data input signal on the basis of a predetermined channel of the N channels; and a phase division unit for dividing data into a first data group having non-shifted phases and a second data group which require a phase shift, according to an output signal of the intermediate signal generation unit and the data input signal, and outputting the divided first and second data groups.

REFERENCES:
patent: 3836904 (1974-09-01), Cross
patent: 4618941 (1986-10-01), Linder et al.
patent: 5124979 (1992-06-01), Matui
patent: 5365229 (1994-11-01), Gardner et al.
patent: 5451953 (1995-09-01), Duffield
patent: 6842125 (2005-01-01), Mauro et al.

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