Magnetic disk device using non-aligned read and write heads with tracking servos and a rotary actuator
US5786957A · kind A · utility
15Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1994 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Sep 2, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/3027
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic head drive including a composite magnetic head structured by integrally combining a write head into a record head and a magnetic disk having a servo area where position information of the composite magnetic head is recorded and a data area where data is recorded. The servo area includes a positioning data area having head positioning information, and the head has an erased area generated by recording an AC signal having a frequency higher than a burst pattern in an area other than the burst pattern including information of positioning the composite magnetic head of said positioning data area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.