Decision feedback equalizers with constrained feedback taps...

Details Decision feedback equalizers with constrained feedback taps... Decision feedback equalizers with constrained feedback taps...

2007-12-25

2007-12-25

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Equalizers

Automatic

C375S229000, C375S346000

Reexamination Certificate

active

10804706

ABSTRACT:
Constrained tap weights of a decision feedback equalizer are determined according to the channel impulse response of a channel and a constraint function. The constraint function is differentiable and is an approximation of a non-differentiable tap weight constraint function. The tap weight constraint function may have a constraint value M that is a function of a mean squared error of the estimated mean squared error at the output of the decision feedback equalizer.

REFERENCES:
patent: 4422175 (1983-12-01), Bingham et al.
patent: 4985902 (1991-01-01), Gurcan
patent: 5513214 (1996-04-01), Gozzo
patent: 6222879 (2001-04-01), Cideciyan et al.
patent: 6381271 (2002-04-01), Javerbring
patent: 7136410 (2006-11-01), Choi et al.
patent: 2003/0099289 (2003-05-01), Birru

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