Staggered seeking method for disk drive sector servo
US4924160A · kind A · utility
25Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 9, 1989 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Jan 9, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/085
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sampled data read/write head positioning system for a disk drive having a sector servo overcomes the low bandwidth constraints of feedback position samplers. The system includes controlled acceleration and controlled deceleration of the read/write heads while seeking a track. In order to avoid missing track addresses, the sectors on each disk surface are staggered (offset) along each track from the corresponding sectors on the other disk surfaces, and each read/write head is used to find a particular track by sequentially switching the read/write heads while seeking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.