Method and apparatus for preventing head crashes in a disk system
US4954904A · kind A · utility
20Cited by
12References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1988 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Dec 13, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6017
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Improved apparatus and a method are disclosed for controlling the flying height of a head over a rotating medium, such as used in a rigid disk drive employing magnetic, magneto-optic or optical recording techniques. The flying height is controlled via magnetic attraction or repulsion to maintain a selected and substantially uniform flying height of the head with respect to the rotating medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.