Method and an apparatus for correcting distortion of binary rece

Details Method and an apparatus for correcting distortion of binary rece Method and an apparatus for correcting distortion of binary rece

1982-11-04

1985-04-02

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

307358, H03K 520

Patent

active

045091803

ABSTRACT:
In a method of correcting a signal having a sequence of binary bits modulated on a carrier and followed by demodulation of the signal, and wherein a distortion has been impressed on the signal during passage through a transmission channel, the steps include setting initial threshold values in dependence of initial reception conditions and wherein the threshold values normally vary as a function of time with a bit duration, comparing the demodulated signal several times within the bit duration with the set threshold values, and correcting the initially set threshold values in dependence of later reception conditions following the initial reception conditions.

REFERENCES:
patent: 4056738 (1977-11-01), Gustafson
patent: 4109211 (1978-08-01), Mese et al.
patent: 4270208 (1981-05-01), MacDavid
patent: 4318128 (1982-03-01), Sauvanet
patent: 4370748 (1983-01-01), Janc et al.

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