Automatic threshold control for multi-level signals

Details Automatic threshold control for multi-level signals Automatic threshold control for multi-level signals

1990-11-29

1996-05-28

Safourek, Benedict V.

Pulse or digital communications

Multilevel

With threshold level

307 73, 375317, H04L 2506

Patent

active

055219411

ABSTRACT:
Symbol recovery for multi-level digital signals has traditionally been difficult because of the nature of the eye pattern output by the discriminator (103), and especially its response to a noisy or impeded signal environment. This method and apparatus for recovery thresholds adjusts (411 and 417) to the current state of the discriminator (103) output of the received signal, based on an attenuated (301) version of that signal. Using a fast adjust mode and slow adjust mode, the threshold generating circuitry (331 and 361) adapts to the signal based on data from the received signal fed into lock detectors (329 and 359) which determine the mode to use.

REFERENCES:
patent: 3736511 (1973-05-01), Gibson
patent: 3775688 (1973-11-01), Hinoshita et al.
patent: 4236256 (1980-11-01), Brackett et al.
patent: 4237424 (1980-12-01), Weiner
patent: 4339828 (1982-07-01), Predina et al.
patent: 4535294 (1985-08-01), Ericksen et al.
patent: 4697275 (1987-09-01), Laue
patent: 4792991 (1988-12-01), Eness
patent: 4811423 (1989-03-01), Eastmond
patent: 4829594 (1990-05-01), Heck et al.
patent: 4847865 (1989-07-01), Larson
patent: 4860010 (1989-08-01), Iwamatsu
patent: 4873702 (1989-10-01), Chiu
patent: 4914418 (1990-03-01), Mak et al.
patent: 5097486 (1992-03-01), Newby et al.

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