Servoing on concentric servo sectors of a first disk surface to write a spiral servo track to a second disk surface
US7843662B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2008 |
| Grant date | Nov 30, 2010 |
| Priority date | — |
| Expiry date | Oct 24, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59666
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive is disclosed comprising a first disk surface and a second disk surface, wherein the first disk surface comprises a plurality of concentric servo sectors extending across substantially an entire radius of the first disk surface. The concentric servo sectors are read across substantially the entire radius of the first disk surface using the first head to generate a read signal. The read signal is processed to generate a position error signal (PES) representing a radial location of the first head relative to the first disk surface. The PES is processed to generate a control signal applied to the VCM to move the second head radially over the second disk surface while writing a spiral servo track on the second disk surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.