Method and apparatus for data detection with an enhanced adaptiv

Details Method and apparatus for data detection with an enhanced adaptiv Method and apparatus for data detection with an enhanced adaptiv

1997-06-09

2000-12-19

Luther, William

Pulse or digital communications

Receivers

Automatic baseline or threshold adjustment

375340, H04L 2510, H03D 100

Patent

active

061635804

ABSTRACT:
A method and apparatus for detecting data is accomplished by an enhanced adaptive threshold which is coupled to receive a data signal and a first reference value. The enhanced adaptive threshold, based on the inputs, provides a threshold to a mixing circuit which, in turn, mixes the threshold with the data signal. The output of the mixer is then subsequently compared with a reference signal to provide an indication of the data signal and preserving its pulse width. The threshold produced by the adaptive threshold circuit is a fixed value when the relationship between the data signal and the first value is in the first state (i.e., the data signal is less than the first value) and the threshold is a proportional threshold when the data signal and the first value are in a second relationship (i.e., the data signal is greater than the first value).

REFERENCES:
patent: 4142116 (1979-02-01), Hardy, Jr. et al.
patent: 5561469 (1996-10-01), Schultz
patent: 5933040 (1999-08-01), Rokhsaz et al.

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