Cross-talk measurement in array reader magnetic recording system

摘要

An apparatus for measuring cross-talk in an array reader magnetic storage system includes an array reader with multiple read heads operable to read data from a magnetic storage medium, a first preamplifier connected to a first read head, a second preamplifier connected to a second read head, and a cross-talk measurement circuit connected to the first preamplifier and to the second preamplifier, operable to measure cross-talk between a first signal from the first read head and a second signal from the second read head.

主权项

1. An apparatus comprising:
an array reader comprising a plurality of read heads operable to read data from a magnetic storage medium; a first preamplifier connected to a first read head in the plurality of read heads; a second preamplifier connected to a second read head in the plurality of read heads; and a cross-talk measurement circuit connected to the first preamplifier and to the second preamplifier, operable to measure cross-talk between a first signal from the first read head and a second signal from the second read head based on the first signal and on the second signal while one of the read heads is driven and a remainder of the plurality of read heads in the array reader are not driven.