Precursor decision feedback equalizer (PDFE)
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United States of America Patent
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Feb 24, 2004
Grant Date -
N/A
app pub date -
Oct 10, 2000
filing date -
Oct 18, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A decision feedback equalizer is provided which is capable of canceling precursor Inter-Symbol Interference (ISI) even when knowledge of future data is unavailable. A novel DFE algorithm is utilized whereby the detection signal-to-noise ratio (SNR) is increased in two aspects: the precursor contribution is eliminated and the sampling location (relative to the channel response) is positioned at the maximum SNR location. As a result, the loop length for data transmission in a cable can be extended.
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