Patent ID: 6563889
Filing Date: 2003-05-13
Classification: G11B

Abstract:
A method of adaptively equalizing a read signal from a data storage media, comprising:equalizing an analog output signal obtained by reading the data storage media using an analog equalization filter; converting the analog output of the analog equalization filter to a raw digital output signal comprising a sequence of data points; processing the raw digital output signal to detect and correct an error in the raw digital output signal; determining a measure of the error detected; and making an adjustment to the boost of the analog equalization filter according to the error detected from each data point of said sequence of data points, wherein the step of making the adjustment includes the step of multiplying said measure of the error detected from said each data point by a sum of a preceding point value corresponding to a preceding data point preceding said each data point and a succeeding point value corresponding to a succeeding data point succeeding said each data point.