Method and apparatus for digital compensation and digital equali

Details Method and apparatus for digital compensation and digital equali Method and apparatus for digital compensation and digital equali

1986-12-29

1988-12-06

Malzahn, David M.

Boots, shoes, and leggings

375 13, G06F 1531

Patent

active

047899522

ABSTRACT:
A method and apparatus are disclosed which provide for the removal of distortion present in a digital output signal from a linear analog signal processing system. Two applications are disclosed: digital compensation and digital equalization. Digital compensation provides for the removal of distortion from a single signal processing system. In particular, an adaptive digital filter operates to provide processing of an output signal from the signal processing system in accordance with correction criteria determined by a controller in response to a training signal. Digital equalization is employed with respect to a plurality of signal processing systems, and provides equalization of an output signal from one signal processing system in accordance with characteristics of a selected signal processing system. In particular, output signals from a selected signal processing system and a signal processing system desired to be equalized are employed to provide information to a controller for use with a correction criteria in the determination of correction information. The correction information is used to direct an adaptive digital filter coupled to an output of the signal processing system which is desired to be equalized.

REFERENCES:
patent: 4141072 (1979-02-01), Perreault
patent: 4397029 (1983-08-01), Satorius et al.
patent: 4539689 (1985-09-01), Chiu et al.
patent: 4571732 (1986-02-01), Pirani et al.
patent: 4581747 (1986-04-01), Prezas et al.
patent: 4637035 (1987-01-01), Betts
patent: 4695969 (1987-09-01), Sollenberger

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