Method and apparatus for adaptive class tap selection according to multiple classification

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 use an adaptive class tap structure and more than one classification method to create a plurality of class types based upon characteristics of an area containing the data point;
• computer readable program code means embodied in the computer usable medium for causing a computer to classify the area containing the data point with respect to the 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 based on the plurality of class types;
• 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 signal by filtering the deteriorated input signal with the filter coefficient corresponding to the multiple classification result;
• and
• computer readable program code means embodied in the computer usable medium for causing a computer to output the 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 the area containing the data point with respect to a plurality of class types and an adaptive class structure;
• a result generator logically coupled to the classifier to create a multiple classification result with the plurality of class types;
• a 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 selector to create an undeteriorated signal by filtering the deteriorated input signal with the filter coefficient selected by the multiple classification result;
• and
• a transmitter logically coupled to the data restorer to output the 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 using an adaptive class tap structure and more than one classification method to create a plurality of class types based upon characteristics of an area containing the data point;
• means for classifying the area containing the data point with respect to the plurality of class types;
• means for creating a multiple classification result based on the plurality of class types;
• means for selecting a filter coefficient according to the multiple classification result;
• means for creating an undeteriorated signal by filtering the deteriorated input signal with the filter coefficient corresponding to the multiple classification result;
• and
• means for outputting the undeteriorated signal corresponding to the input signal.