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US 2003/0126170 A1Published application
Adaptive filtering with tap leakage using error filtering
AssigneeIntel Corporation
InventorsStanley K. Ling, Hiroshi Takatori
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Abstract
In one embodiment of the invention, a tap-leakage generator includes an error filter and an updater. The error filter filters a decision error provided by the adaptive filter using a leakage factor. The adaptive filter has N taps. The updater updates N equalizer coefficients to the N taps using the filtered decision error. The updater receives N equalizer data from the N taps.
Claims44
An apparatus comprising:
- an error filter coupled to an adaptive filter having N taps to filter a decision error provided by the adaptive filter using a leakage factor;
- and
- an updater coupled to the error filter and the adaptive filter to update N equalizer coefficients to the N taps using the filtered decision error, the updater receiving N equalizer data from the N taps.
A method comprising:
- filtering a decision error provided by an adaptive filter using a leakage factor, the adaptive filter having N taps;
- and
- updating N equalizer coefficients to the N taps using the filtered decision error by an updater, the updater receiving N equalizer data from the N taps.
A computer program product comprising:
- a machine useable medium having program code embedded therein, the program code comprising:
- computer readable program code to filter a decision error provided by an adaptive filter using a leakage factor, the adaptive filter having N taps;
- and
- computer readable program code to update N equalizer coefficients to the N taps using the filtered decision error by an updater, the updater receiving N equalizer data from the N taps.
1 more element
A system comprising:
- an adaptive filter having N taps with N equalizer coefficients to generate an output sequence from an input signal, the adaptive filter generating an error decision;
- and
- a tap-leakage generator coupled to the adaptive filter comprising:
- an error filter coupled to an adaptive filter having N taps to filter the decision error using a leakage factor;
- and
- an updater coupled to the error filter and the adaptive filter to update N equalizer coefficients to the N taps using the filtered decision error, the updater receiving N equalizer data from the N taps.
3 more elements
Dependencies are inferred from the claim text.