Servo pause for disk drive embedded multi-tasked controller
US5280603A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1991 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Sep 19, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for allocating digital processing activities of an embedded microcontroller within a disk drive between repetitive periodic digital servo loop service routines synchronized to rotation of a data storage disk of the drive and irregularly occurring host service routines supporting a high level, digital interface to a host computing environment. The new method comprises the steps of: PA0 prioritizing the host service routines into priority routines and non-priority routines, PA0 detecting calls to one of the priority routines, and PA0 bypassing execution of a predetermined number of the servo loop service routines to enable execution of the called priority routine without interruption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.