Method and apparatus for adaptive filter tap selection according to a class

A method for restoring a deteriorated input signal comprising the steps of:

• detecting a data point of the deteriorated input signal;
• creating a classification result based upon an area containing the data point;
• adaptively selecting filter taps according to the classification result;
• selecting a filter coefficient according to the classification result;
• creating an undeteriorated data by filtering the data with the filter coefficient and the filter taps selected by the classification result;
• and
• outputting an undeteriorated signal corresponding to the input signal.

An article of manufacture for use in a computer system to restore a deteriorated input signal, the article of manufacture comprising a computer usable medium having computer readable program code means embodied in the medium, the program code means including:

• computer readable program code means embodied in the computer usable medium for causing a computer to detect a data point of the deteriorated input signal;
• computer readable program code means embodied in the computer usable medium for causing a computer to classify an area containing the data point with respect to a plurality of class types;
• computer readable program code means embodied in the computer usable medium for causing a computer to create a multiple classification result with the plurality of class types;
• computer readable program code means embodied in the computer usable medium for causing a computer to adaptively select filter taps according to the multiple classification result;
• computer readable program code means embodied in the computer usable medium for causing a computer to select a filter coefficient according to the multiple classification result;
• computer readable program code means embodied in the computer usable medium for causing a computer to create an undeteriorated data by filtering the data with the filter coefficient and the filter taps selected by the multiple classification result;
• and
• computer readable program code means embodied in the computer usable medium for causing a computer to output an undeteriorated signal corresponding to the input signal.

An article of manufacture for use in a computer system to restore a deteriorated input signal, the article of manufacture comprising a computer usable medium having computer readable program code means embodied in the medium, the program code means including:

• computer readable program code means embodied in the computer usable medium for causing a computer to detect a data point of the deteriorated input signal;
• computer readable program code means embodied in the computer usable medium for causing a computer to create a classification result based upon an area containing the data point;
• computer readable program code means embodied in the computer usable medium for causing a computer to adaptively select filter taps according to the classification result;
• computer readable program code means embodied in the computer usable medium for causing a computer to select a filter coefficient according to the classification result;
• computer readable program code means embodied in the computer usable medium for causing a computer to create an undeteriorated data by filtering the data with the filter coefficient and the filter taps selected by the classification result;
• and
• computer readable program code means embodied in the computer usable medium for causing a computer to output an undeteriorated signal corresponding to the input signal.

An apparatus for restoring a deteriorated input signal comprising:

• a detector to detect a data point of the deteriorated input signal;
• a classifier logically coupled to the detector to classify an area containing the data point with respect to a plurality of class types;
• a result generator logically coupled to the classifier to create a multiple classification result with the plurality of class types;
• a first selector logically coupled to the result generator to adaptively select filter taps according to the multiple classification result;
• a second selector logically coupled to the result generator to select a filter coefficient according to the multiple classification result;
• a data restorer logically coupled to the first selector and the second selector to create an undeteriorated data by filtering the data with the filter coefficient and the filter taps selected by the multiple classification result;
• and
• a transmitter logically coupled to the data restorer to output an undeteriorated signal corresponding to the input signal.

An apparatus for restoring a deteriorated input signal comprising:

• a detector to detect a data point of the deteriorated input signal;
• a result generator logically coupled to the detector to create a classification result based upon an area containing the data point;
• a first selector logically coupled to the result generator to adaptively select filter taps according to the classification result;
• a second selector logically coupled to the result generator to select a filter coefficient according to the classification result;
• a data restorer logically coupled to the first selector and the second selector to create an undeteriorated data by filtering the data with the filter coefficient and the filter taps selected by the classification result;
• and
• a transmitter logically coupled to the data restorer to output an undeteriorated signal corresponding to the input signal.

An apparatus for restoring a deteriorated input signal comprising:

• means for detecting a data point of the deteriorated input signal;
• means for classifying an area containing the data point with respect to a plurality of class types;
• means for creating a multiple classification result with the plurality of class types;
• means for adaptively selecting filter taps according to the multiple classification result;
• means for selecting a filter coefficient according to the multiple classification result;
• means for creating an undeteriorated data by filtering the data with the filter coefficient and the filter taps selected by the multiple classification result;
• and
• means for outputting an undeteriorated signal corresponding to the input signal.

An apparatus for restoring a deteriorated input signal comprising:

• means for detecting a data point of the deteriorated input signal;
• means for creating a classification result based upon an area containing the data point;
• means for adaptively selecting filter taps according to the classification result;
• means for selecting a filter coefficient according to the classification result;
• means for creating an undeteriorated data by filtering the data with the filter coefficient and the filter taps selected by the classification result;
• and
• means for outputting an undeteriorated signal corresponding to the input signal.