Disc drive servo system with dual head sampling
US6351342B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1996 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Aug 28, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59688
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A servo system positions a transducer over a disc surface in a disc drive system. Disc surfaces in the drive each have a plurality of spaced servo samples recorded thereon. The servo samples on at least two of the disc surfaces are recorded in skewed relation to one another. A plurality of transducers are provided and one transducer is associated with each one of the plurality of disc surfaces. An actuator arm assembly is coupled to the transducers to move the transducers relative to the disc surfaces. A servo control system is coupled to the actuator arm assembly to control position of the actuator arm assembly. The servo control system includes a reader configured to read servo samples from at least two disc surfaces such that at least two servo samples are read within one servo time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.