Independently driven write coils
US8947807B2 · kind B2 · utility
12Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2012 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Dec 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3123
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A writer assembly having two separately driven write coils allows a combined write field generated by the writer assembly to be fine turned and optimized for a particular application. Two preamplifiers may be incorporated into a printed circuit board in order to separately drive the write coils. In other implementations, there may be more than two write coils and corresponding preamplifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.