Decision feedback equalizer including forward part whose signal reference point is shiftable depending on channel response
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United States of America Patent
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Jun 2, 1992
Grant Date -
N/A
app pub date -
Nov 19, 1990
filing date -
Nov 17, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A center tap of a transversal filter, which forms part of a forward equalizer, is shifted by at least one symbol interval. An error signal is generated using a decision output and tap outputs of the forward and backward equalizers. An impulse response estimation circuit is provided to receive the decision output of the predetermined tap signals of the forward equalizer. The forward equalizer is controlled in accordance with the channel response to effectively achieve adaptive equalization.
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