Signal equalizer

Details Signal equalizer Signal equalizer

1996-10-08

1998-11-10

Chin, Stephen

Pulse or digital communications

Equalizers

375232, 3647242, H04B 346

Patent

active

058355316

ABSTRACT:
A signal equalizer for equalizing a waveform of a digital data sequence includes a discriminator for discriminating average measurement levels at plural frequencies of the digital data sequence, an error operating unit for finding the ratio or difference between an equalizing target average level which correspond to the plural frequencies that has been found in advance and an average level obtained by the discriminator and a controller for controlling an equalizing characteristic of the equalizer based on the error information obtained by the error operating unit.

REFERENCES:
patent: 3864632 (1975-02-01), Chang
patent: 4152649 (1979-05-01), Choquet
patent: 4430743 (1984-02-01), Watanabe
patent: 4571732 (1986-02-01), Pirani et al.
patent: 4607377 (1986-08-01), Atobe et al.
patent: 5008903 (1991-04-01), Betts et al.
patent: 5157691 (1992-10-01), Ohkubo et al.
patent: 5287385 (1994-02-01), Sugawara
patent: 5317595 (1994-05-01), Ostman
patent: 5347539 (1994-09-01), Sridhar et al.
patent: 5400189 (1995-03-01), Sato et al.
patent: 5444738 (1995-08-01), Ezuriko
patent: 5541956 (1996-07-01), Ueda
patent: 5586100 (1996-12-01), Lee et al.
Patent Abstracts of Japan; vol. 15; No. 434, 6 Nov. 1991, JP-A-03 181 218, 7 Aug. 1991.

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