Multi-disc servo track writer vibration isolation method and apparatus
US6900968B2 · kind B2 · utility
5Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2002 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | Apr 1, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B25/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for orienting a head over a disc within a multi-disc servo-track writer preferably uses two gas bearings, an adaptor plate, and an actuator assembly including an E-block and arm/head assembly. Rotation of the E-block, and hence actuator arm/head assembly, can be controlled by the movement of a rotational gas bearing, which is rotated by a motor. The gas bearing provides for reduced friction and, as a result, decreased eccentricity of the head as compared to related art configurations. A translational gas bearing can be used for laterally positioning the actuator assembly for servo track recording.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.