Error convergence measurement circuit for providing convergence of a filter
AssigneeLucent Technologies Inc.
InventorDavid Garrett
Life of this patent
Estimating the term…
Abstract
An error convergence measurement circuit for providing convergence of a filter includes a terminating component configured to terminate filter convergence independent of an operating environment of the filter. Selectable termination threshold levels are provided.
Claims21
An error convergence measurement circuit for providing convergence of a filter comprising:
- a terminating component configured to terminate filter convergence independent of an operating environment of the filter.
6 The error convergence measurement circuit according to claim 5, wherein the terminating component comprises an accuracy selector for providing the selectable accuracy.
An equalizer comprising:
- an error detection circuit for measuring the difference between an actual signal and an expected signal of the equalizer to determine a data signal error value;
- a terminating component configured to terminate an equalizer convergence process independent of an operating environment of the equalizer and based upon the data signal error value;
- an error calculation component for generating correction values;
- and
- a filter circuit having a plurality of taps for applying the generated correction values to the equalizer to compensate for data signal error.
A method of providing convergence for a filter, the method comprising:
- determining a percentage change in a data signal error value based upon the comparison of a present data signal error value to a previous data signal error value;
- and
- terminating filter convergence based on the percentage change in the data signal error value and a predetermined threshold value.
A method of providing convergence for a filter, the method comprising:
- terminating an iterative convergence process independent of an operating environment of the filter.
Dependencies are inferred from the claim text.