Data storage device concurrently controlling and sensing a secondary actuator for actuating a head over a disk
US9437231B1 · kind B1 · utility
4Cited by
333References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2015 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Sep 25, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5582
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage device is disclosed comprising a voice coil motor (VCM) and a secondary actuator configured to actuate a head over a disk. A control signal is applied to the secondary actuator while processing a sensor signal generated by the secondary actuator. A vibration signal is generated based on the sensor signal, wherein the vibration signal is a high-pass signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.