DESIGN REQUIREMENT RELAXATION FOR MULTIPLE READERS IN PRESENCE OF LARGE SKEW ANGLE RANGE

摘要

A readback signal from a first reader and a readback signal from a second reader are received, the first reader and the second reader configured to read two-dimensional data from at least one track of a recording media. A quality metric of the second reader is measured based on the readback signal. It is determined if the quality metric for the second reader is above a threshold. If the quality metric is above the threshold, the first reader and the second reader are used to read the data.

主权项

1. A method comprising:
receiving two or more signals from respective two or more readers housed in a head, the two or more readers separated from each other at least in a cross-track direction over a recording medium; determining a skew angle of the head; and in response to the skew angle being above a predetermined value, using one of the two or more signals to cancel interference in another of the two or more signals.