Communication system

Details Communication system Communication system

1997-05-21

2000-09-12

Vo, Don N.

Pulse or digital communications

Equalizers

Automatic

H04B 1018, H04L 2701

Patent

active

06118814&

ABSTRACT:
A method and system for providing adaptive filtering in a communication system. The method and system modify coefficients of a finite impulse response filter fed by a sequence of digital samples in accordance with an error signal in floating point format. The floating point error signal includes only a sign bit and an exponent term. The exponent term is added to an exponent term of an adaptation coefficient to produce a composite error signal. The adaptive filter is used as a linear adaptive equalizer and as an echo canceler.

REFERENCES:
patent: 5353307 (1994-10-01), Lester et al.
patent: 5640418 (1997-06-01), Tanaka
patent: 5710793 (1998-01-01), Greenberg
patent: 5914990 (1999-06-01), Soderkvist

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