Servo flaw detection using PES and velocity thresholds
US6735040B2 · kind B2 · utility
18Cited by
12References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Oct 4, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/36
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method of identifying defective servo sectors in a data storage device detects servo sectors having an associated position error signal (PES) value that exceeds a predetermined PES threshold value, as well as servo sectors that have a related transducer velocity signal that exceeds a predetermined velocity threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.