Data storage device comprising sequence detector compensating for inter-track interference

摘要

A data storage device is disclosed comprising a head actuated over a disk comprising a plurality of data tracks. A first data track is read to generate a first read signal, the first read signal is sampled to generate first read signal samples, a first data sequence is detected based on the first read signal samples, and the first data sequence is converted into corresponding first expected samples. A second data track adjacent the first data track is read to generate a second read signal, the second read signal is sampled to generate second read signal samples, and a second data sequence is detected based on the second read signal samples and the first expected samples.

主权项

1. A data storage device comprising:
a disk comprising a plurality of data tracks; a head actuated over the disk; and control circuitry configured to:
read a first data track to generate a first read signal;sample the first read signal to generate first read signal samples;detect a first data sequence based on the first read signal samples;filter the first data sequence with a target partial response to convert the first data sequence into corresponding first expected samples;read a second data track adjacent the first data track to generate a second read signal;sample the second read signal to generate second read signal samples; anddetect a second data sequence based on the second read signal samples and the first expected samples.