Disk drive
US8144553B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2009 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Jul 7, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/0284
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive for driving a disk is disclosed, which includes: a driving unit configured to provide a driving force onto the disk, a main circuit pattern electrically connected with the driving unit, a sensor unit configured to sense a rotation speed of the disk, a first board supporting the sensor unit, a second board supporting the first board, and a base plate supporting the second board and the driving unit. One of the first board and the second board can be a flexible board electrically connecting the sensor unit with the main circuit pattern, and the other of the first board and the second board can be a rigid board. This disk drive can be utilized to ensure the distance between the sensor unit and the disk required for a rotation sensor to measure the rotation speed of the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.