Self servo writing using servo burst edge errors for compound error correction
US7161759B1 · kind B1 · utility
16Cited by
7References
80Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2002 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Jun 23, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59666
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides self-servo writing by which self-propagated servo pattern track shape errors are reduced or eliminated. The method includes providing first servo bursts on a first track, measuring edge errors of the first servo bursts, and self-servo writing second servo bursts to a second track using different combinations of the edge errors to adjust the position error signals for the second servo bursts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.