Equalizer circuit suitable for adaptive use with fiber optics

Details Equalizer circuit suitable for adaptive use with fiber optics Equalizer circuit suitable for adaptive use with fiber optics

1983-07-26

1985-11-26

Orsino, Jr., Joseph A.

Pulse or digital communications

Repeaters

Testing

307363, 375 14, 375 76, 455619, H03K 508, H04B 314

Patent

active

045557896

ABSTRACT:
An equalizer circuit wherein the equalized signal is at the output of a summing network; one input to the summing network is the signal to be equalized, and the other input is from a feedback network. The output of the summing network serves as an input to a variable gain unclocked decision device which provides a digital input to the feedback network, depending on whether the equalized signal is determined to be a one or a zero. Sucessful equalization is provided, with the unclocked device. Moreover, the variable gain of the decision device permits the equalizer circuit to respond to a control level from an adaptive control network for automatically equalizing individual transmission links.

REFERENCES:
patent: 3716780 (1973-02-01), Van Elk et al.
patent: 3828204 (1974-08-01), Farnsworth
patent: 4326169 (1982-04-01), Fenderson et al.

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