Normalization of equalizer soft output for channels with varying noise power

A Kleinerman, A Zaltsman - US Patent 6,980,602, 2005 - Google Patents
The Subject matter of the present application is related to and may be advantageously
combined with the Subject matter of copending and commonly owned application US patent …

Adaptive thresholding for adaptive equalization

J Bodenschatz - US Patent App. 09/970,212, 2003 - Google Patents
The invention is directed to methods and associated Systems that use adaptive thresholds to
accomplish adaptive equalization. In general, threshold values are defined accord ing to the …

Adaptive channel equalizer having a training mode

TJ Wang, DC Shiue, A D'souza - US Patent 6,693,958, 2004 - Google Patents
1998-12-22 Assigned to THOMAS CONSUMER ELECTRONICS, INC. reassignment
THOMAS CONSUMER ELECTRONICS, INC. ASSIGNMENT OF ASSIGNORS INTEREST …

Adaptive equalizer with passive and active stages

S Gondi, K Abe - US Patent 7,656,939, 2010 - Google Patents
BACKGROUND This invention relates to systems and methods for improv ing the bandwidth
in equalizers. Data which is transmitted through a communications chan nel suffers from …

Equalizer with a cost function taking into account noise energy

O Piirainen - US Patent 6,724,841, 2004 - Google Patents
US PATENT DOCUMENTS mating a channel impulse response from said received signal
estimating a noise energy from Said received Signal, calcu 5,692,011 A 11/1997 Nobakht et …

Analog signal channel equalization with signal-in-noise embodiment

JE Paul Jr, VA Vitols - US Patent 4,000,369, 1976 - Google Patents
By means of the concept of the subject invention, there is provided feed-forward means for
effecting compensatory biasing of a noisy signal by an amount corresponding to an estimate …

Adaptive noise-predictive partial-response equalization for channels with spectral nulls

P Chevillat, E Eleftheriou, D Maiwald - US Patent 5,784,415, 1998 - Google Patents
The present application makes use of a novel adaptive noise-predictive partial-response
equalization scheme for channels (30) exhibiting spectral nulls and/or near nulls. The noise …

Low complexity frequency domain equalizer having fast re-lock

WK Dobson, MW Christiansen - US Patent 6,603,811, 2003 - Google Patents
References Cited A low-complexity frequency domain equalizer having fast US PATENT
DOCUMENTS re-lock capabilities for use in a DMT transceiver. The transceiver includes a …

Tap weight initializer for an adaptive equalizer

M Fimoff, S Ozen, MD Zoltowski - US Patent 7,190,720, 2007 - Google Patents
US PATENT DOCUMENTS of the equalizer. These values are determined through use of a
nested Summation where the number of Summations is 4.550, 415 A* 10/1985 Debus et …

Adaptive equalizer

A Ushirokawa, I Tsujimoto - US Patent 5,228,058, 1993 - Google Patents
An adaptive equalizer for adaptively equalizing a signal received over a channel on which
intersymbol interference occurs. The adaptive equalizer accurately updates the tap …