Digital data transmission system with device for correcting...

Details Digital data transmission system with device for correcting... Digital data transmission system with device for correcting...

2005-12-20

2005-12-20

Fan, Chieh M. (Department: 2634)

Pulse or digital communications

Receivers

Automatic baseline or threshold adjustment

C375S233000, C375S257000

Reexamination Certificate

active

06977971

ABSTRACT:
There is provided a digital data transmission system that includes a first unit transmitting a first MLT3 signal, a second unit receiving the first MLT3 signal, and transformers. The second unit includes an equalizer receiving the first MLT3 signal and outputting a second MLT3 signal that is input to a recovery module for the transmitted digital data, and a device placed in feedback to the equalizer. The device receives the second MLT3 signal and outputs a third low frequency signal that is added to the first MLT3 signal. The device has a translation block for the up or down or no translation of the second MLT3 signal according to the low or high or intermediate value of such signal, and a low pass filter receiving the signal output from the translation block and outputting the third signal containing the low frequency component of the second MLT3 signal.

REFERENCES:
patent: 5465272 (1995-11-01), Smith
patent: 5812597 (1998-09-01), Graham et al.
patent: 5844439 (1998-12-01), Zortea
patent: 5880615 (1999-03-01), Bazes
patent: 6047026 (2000-04-01), Chao et al.
patent: 6266366 (2001-07-01), Greiss et al.
patent: 6415003 (2002-07-01), Raghavan

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