Data storage device aborting write operation based on accumulated track squeeze metric for adjacent data track
US10748567B1 · kind B1 · utility
9Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2019 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Oct 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/36
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage device is disclosed comprising a head actuated over a disk comprising a plurality of data tracks, including consecutive data tracks N−1 and N. A first write to data track N is performed using a first position error signal (PES) representing a position of the head relative to the data tracks. A track squeeze metric is generated for data track N−1 based on at least the first PES of the first write. The track squeeze metric for data track N−1 is accumulated during the first write, and the first write is aborted when the accumulated track squeeze metric for data track N−1 exceeds a first threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.