TWO-DIMENSIONAL MAGNETIC RECORDING READER OFFSET ESTIMATION

摘要

A method for enhancing read performance in a multi-reader two-dimensional magnetic recording system comprising first and second readers includes: receiving first and second analog read signals from the first and second readers, respectively; sampling the first and second analog read signals to generate first and second sampled signals, respectively, each of the first and second sampled signals comprising an integer component, indicative of a value of a corresponding one of the first and second analog read signals, respectively, at an integer multiple of a corresponding sampling period associated therewith, and/or a fractional component, indicative of a value of the corresponding one of the first and second analog read signals, respectively, at an arbitrary point in time between integer multiples of the corresponding sampling period; and combining the integer and/or fractional components of the respective first and second sampled signals to thereby generate a reader offset estimation signal.

主权项

1. A method for enhancing read performance in a multi-reader two-dimensional magnetic recording system including at least first and second readers, the method comprising:
receiving a first analog read signal from the first reader and a second analog read signal from the second reader; sampling the first and second analog read signals to generate first and second sampled signals, respectively, each of the first and second sampled signals comprising at least one of an integer component, indicative of a value of a corresponding one of the first and second analog read signals, respectively, at an integer multiple of a corresponding sampling period associated therewith, and a fractional component, indicative of a value of a corresponding one of the first and second analog read signals, respectively, at an arbitrary point in time between integer multiples of the corresponding sampling period; and combining at least one of the integer and fractional components of the respective first and second sampled signals to thereby generate a reader offset estimation signal for enhancing read performance in the multi-reader two-dimensional magnetic recording system.