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

  • US 9,257,146 B1
  • Filed: 02/11/2014
  • Issued: 02/09/2016
  • Est. Priority Date: 02/11/2014
  • Status: Active Grant
First Claim
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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; and

    detect a second data sequence based on the second read signal samples and the first expected samples.

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