Data storage device communicating servo information between servo channels of multiple actuators
US9792938B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2017 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | May 3, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59694
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage device is disclosed comprising a first disk comprising first servo sectors A0-AN distributed around a circumference of the first disk, and a second disk comprising second servo sectors B0-BN distributed around a circumference of the second disk, wherein the second servo sectors B0-BN are offset circumferentially from the first servo sectors A0-AN. While the first and second disks are rotating second servo information is transmitted from a second servo channel to a first servo channel. One of the first servo sectors Ai is read to generate first servo information, and a first command value is generated based on the first servo information and the second servo information, wherein a first actuator is controlled based on the first command value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.