Decision feedback equalizer
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United States of America Patent
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Sep 19, 2006
Grant Date -
Nov 3, 2005
app pub date -
Apr 9, 2003
filing date -
Apr 16, 2002
priority date (Note) -
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Abstract
A decision feedback equalizer for processing a data signal provides concurrent equalizer outputs for hard decision directed and soft decision directed modes. The joint architecture in accordance with the present invention takes advantage of the fact, herein recognized, that for each equalizer output symbol soft decision bit representation, a subset of these bits corresponds to the hard decision representation. As a result, the invention permits the concurrent output of two distinct modes with essentially the same hardware as a one output equalizer.
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