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 a readback signal from a first reader and a readback signal from a second reader, the first reader and the second reader configured for two-dimensional reading of a recording media; measuring a quality metric of the second reader based on the readback signal; determining if the quality metric for the second reader is above a threshold; if the quality metric is above the threshold, using the first reader and the second reader to read data, otherwise using only the first reader to read the data.