Digital filter adaptively learning filter coefficient

Pulse or digital communications – Equalizers – Automatic

Reexamination Certificate

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Details

C375S233000, C375S350000

Reexamination Certificate

active

07421017

ABSTRACT:
A linear filter feeds back an error signal generated using the output of an adaptive filter to a learning circuit. The learning circuit learns the coefficients of the adaptive filter using the error signal. The coefficients of the linear filter are determined depending on the generation method of a target signal for error minimization. In a signal interpolation type timing recovery digital filter, the coefficients of an inverse interpolation filter are determined in such a way as to minimize an error of a signal after interpolation.

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