Disk file with clearance and glide measurement and early head crash warning
US5410439A · kind A · utility
104Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1994 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Feb 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2273
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention produces and maintains clearance and glide test results for a disk file, stores these results, and monitors head clearance and disk asperities over the useful life of the file using native disk file electronics. The disk file includes a predictive failure analysis component which utilizes clearance and glide test results to predict impending failure of a disk in the disk file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.