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 …

Device for equalizing channel-distorted signals

SK How - US Patent 6,047,024, 2000 - Google Patents
In its most basic feature, the present invention provides a novel Self-adjusting equalization
device which includes a digital equalizer for performing a joint-tuned adjustment of a …

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 adaptive equalizer with gain and filter correction

JW Everitt, PJ Hurst, DL Ray - US Patent 5,880,645, 1999 - Google Patents
3,568,100 3/1971 Tarbos....................................... 333/18 3,578,914 5/1971 Simonelli........
333/18 X frequency Signal conditioning to generate a filter output Signal, an error detection …

Signal bias remover apparatus

WF Acker - US Patent 4,186,384, 1980 - Google Patents
An equalizer bias signal removal system for adjusting an analog input signal toward being
symmetrical about a reference signal level where said analog input signal, combined with a …

Means for and method of compensating signal distortion

G Gustav - US Patent 2,776,410, 1957 - Google Patents
As is well known in electrical communication engineer ing, both the circuits used and
translating devices, such as amplifiers, modulators, detectors, filters, transformers, etc. are …

Automatic data channel equalization apparatus utilizing a transversal filter

RG Clapham, JB Lord, HG Sullivan - US Patent 3,445,771, 1969 - Google Patents
ABSTRACT OF THE DISCLOSURE A technique and circuit for automatically providing
equalization for distortion of signals through a communi cation circuit. This is accomplished …

Automatic equalizer for analog channels having means for comparing two test pulses, one pulse traversing the transmission channel and equalizer

RW Lucky - US Patent 3,375,473, 1968 - Google Patents
3,375,473 AUTOMATIC EQUALIZER FOR ANALOG CHAN NELS HAVING MEANS FOR
COMPARENGTWO TEST PULSES, ONE PULSE TRAVERSING THE TRANSMESSION …

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 power analog equalizer with variable op-amp gain

AHM Kamal, J Mohan - US Patent 6,492,876, 2002 - Google Patents
The present invention is directed to an analog equalizer that is capable of adaptively
compensating for analog signal distortions that are created during a gigabit data rate trans …