US PATENT SUBCLASS 375 / 233
.~.~.~ Decision feedback equalizer

Current as of: June, 1999
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375 /   HD   PULSE OR DIGITAL COMMUNICATIONS

229  DF  EQUALIZERS {1}
230  DF  .~ Automatic {2}
232  DF  .~.~ Adaptive {4}
233.~.~.~ Decision feedback equalizer

DEFINITION

Classification: 375/233

Decision feedback equalizer:

(under subclass 232) Subject matter wherein the equalized signal is the sum of the outputs of the forward and feedback part of the equalizer.

(1) Note. The forward part is a linear transversal equalizer. Decisions made on the equalized signal are fed back via a second transversal filter (i.e., feeback part).

(2) Note. The DFE generally eliminates the intersymbol interference(ISI).