Disk drive comprising a servo accelerator implementing state space equations for a plurality of task objects
US7697233B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2008 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Oct 23, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59605
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive is disclosed comprising a disk, a head, and an actuator for actuating the head over the disk. The disk drive further comprises a state variable memory for storing a plurality of state variable sets, wherein each state variable set comprises a plurality of state variables and each state variable set corresponds to a task object. A coefficient memory for stores a plurality of coefficient sets, wherein each coefficient set comprises a plurality of coefficients and each coefficient set corresponds to a task object. A task object is executed by initializing a base state register to address a selected one of the state variable sets in the state variable memory, and initializing a base coefficient register to address a selected one of the coefficient sets in the coefficient memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.