Disk drive with temperature compensation of write current
US7212361B1 · kind B1 · utility
16Cited by
22References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2001 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Dec 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive provides temperature compensation for write current. The write current not only provides an acceptable bit error rate for data written to and read from the disk, but also prevents write induced instability in the head. Furthermore, the write current prevents excessive pole tip protrusion. As a result, the write current ensures that data is reliably stored and retrieved at a given temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.