Disk apparatus for monitoring error by setting timeout time upon seek
US5696646A · kind A · utility
9Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1995 |
| Grant date | Dec 9, 1997 |
| Priority date | — |
| Expiry date | Dec 5, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5547
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Seek operation of a seek control section is monitored by an error monitoring section, and when a seek operation does not end normally, the control is forcedly switched over to fine control by the on-track control section without reporting the error to the higher-level controller. The error monitoring section variably sets a seek timeout time Ts depending on the seek distance between the current position of the head and the target position at the start of seek, for example. When the seek timeout time Ts elapses before the target position is reached, it is judged as an error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.