Actuator assembly with orthogonal force generation
US6633457B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2000 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Jul 25, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An actuator assembly for positioning read/write heads above a data storage media comprises a pivotally mounted carriage arm assembly with a voice coil and a magnetic device having a plurality of poles for generating a magnetic field. The voice coil is positioned with its effective portions crossing through the magnetic field to generate at least one pair of driving forces in a direction substantially orthogonal to a seeking direction of the read/write heads. The carriage arm driven by said pair of forces has substantially no reacting force generated onto the pivot so that the servo bandwidth of the head positioning assembly can be improved and achieves a high degree of head positioning accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.