Waveform equalizer, waveform equalization method, and...

Details Waveform equalizer, waveform equalization method, and... Waveform equalizer, waveform equalization method, and...

2005-05-17

2010-06-15

Ngo, Chuong D (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S323000

Reexamination Certificate

active

07739320

ABSTRACT:
A waveform equalizer includes a filter unit, an error estimation unit, a tap coefficient storage unit, and an update amount calculation unit which includes an intermediate calculation unit and an update amount setting unit. Coefficient update amount ΔCi(n) for an ith tap is calculated according to an equationin-line-formulae description="In-line Formulae" end="lead"?ΔCi(n)=αi(n)×μ×e(n)×x*(n−i)in-line-formulae description="In-line Formulae" end="tail"?with the multiplication by αi(n) being performed by the update amount setting unit. Here, 0<αi(n)≦1, and αi(n) is a function f(Ci(n−1)) which monotonically increases with Ci(n−1).

REFERENCES:
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patent: 2002/0054634 (2002-05-01), Martin et al.
patent: 2004/0013187 (2004-01-01), Tokunaga
patent: 2005/0232347 (2005-10-01), Chang
patent: 11-313013 (1999-11-01), None
patent: 2000-295149 (2000-10-01), None

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