Method for reducing off-track gain for a disk drive actuator
US7814643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2007 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Apr 30, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49027
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of redefining nodal points of rotation comprises providing an actuator assembly with a comb, a pivot having an axis of rotation, comb legs on one side of the pivot, a voice coil motor, an arm, and a head gimbal assembly mounted to the arm with a head opposite the arm; defining a first nodal point of rotation for the actuator at a position that is on the arm between the pivot and the head; defining a second nodal point of rotation for the actuator at a position adjacent to the pivot and the coil; moving the first nodal point in a radial direction away from the axis toward the head; and moving the second nodal point in a radial direction away from the pivot to a geometric center of active legs of the coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.