Skew-tolerant reader set selection in array-reader based magnetic recording

摘要

A method for enhancing read performance in an ARMR system includes: obtaining CTS information for a plurality of readers in a multi-reader head of the ARMR system, the CTS information defining a relationship between skew angle and CTS between respective combinations of subsets of the readers; determining, as a function of the CTS information, a given one of the combinations of subsets of the readers which provides enhanced read performance among a total number of combinations of subsets of the readers for each of a plurality of skew angles; and selecting, for subsequent processing by a read channel in the ARMR system, the given one of the combinations of subsets of the readers determined to provide enhanced read performance for a given one of the skew angles corresponding to a zone in which the multi-reader head is operating.

主权项

1. A method for enhancing read performance in an array-reader based magnetic recording (ARMR) system, the method comprising:
obtaining cross-track separation (CTS) information for a plurality of readers in a multi-reader head of the ARMR system, the CTS information defining a relationship between skew angle and CTS between respective combinations of subsets of the plurality of readers; determining, as a function of the CTS information, a given one of the combinations of subsets of the plurality of readers which provides enhanced read performance among a total number of combinations of subsets of the plurality of readers for each of a plurality of skew angles; and selecting, for subsequent processing by a read channel in the ARMR system, the given one of the combinations of subsets of the plurality of readers determined to provide enhanced read performance for a given one of the plurality of skew angles corresponding to a zone in which the multi-reader head is operating.