Method of and a device for correcting signal distortion caused b

Details Method of and a device for correcting signal distortion caused b Method of and a device for correcting signal distortion caused b

1986-04-29

1987-08-25

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375 99, 328162, H03H 730, H03H 740

Patent

active

046898050

ABSTRACT:
The present invention relates to a method for the correction of a signal distortion caused by a cable at the receiving end. To obtain adaptivity the method according to the invention comprises the steps of treating the received signal by an equalizer circuit, multiplying the output signal of the equalizer circuit by a correction coefficient and combining the signal obtained through the multiplication with the received signal to produce a corrected signal. The method further comprises detecting the corrected signal, taking a sample value of the output of the detector at a prescribed moment and holding the sample value up to the following sampling, comparing the sample value with a prescribed reference value, and determining the value of a new correction coefficient on the basis of the comparison in order to obtain a sample value equalling the reference value.

REFERENCES:
patent: 4032847 (1977-06-01), Unkauf
patent: 4112370 (1978-09-01), Monsen
patent: 4355402 (1982-10-01), Kromer, III
patent: 4447910 (1984-05-01), Smith et al.
patent: 4458355 (1984-07-01), Motley et al.
patent: 4503104 (1985-07-01), Kamerman
patent: 4503545 (1985-03-01), Bremer et al.
patent: 4520492 (1985-05-01), Weber
patent: 4564934 (1986-01-01), Macchi

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