Feedforward equalizer for DFE based detector

Details Feedforward equalizer for DFE based detector Feedforward equalizer for DFE based detector

2004-12-15

2008-09-16

Tse, Young T. (Department: 2611)

Pulse or digital communications

Equalizers

Automatic

C375S350000, C708S323000

Reexamination Certificate

active

07426236

ABSTRACT:
A signal processing apparatus includes an input circuit to receive an input signal, and a high-pass filter responsive to the input circuit. The high-pass filter includes M taps to filter precursor intersymbol interference (ISI), one main tap and N taps to filter postcursor ISI. Each of n taps of the N taps is limited to a range of between −1 and 0. The signal processing apparatus includes a decision feedback equalizer. The decision feedback equalizer includes a decision circuit responsive to the high-pass filter, and a feedback filter responsive to the decision circuit. The decision circuit is responsive to the feedback filter.

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