Hindering PTP in a hard disk
US6717759B1 · kind B1 · utility
18Cited by
11References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Feb 19, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hard disk is provided with tools for limiting the duty cycle (a group of variations of load with time). The write current is controlled by, e.g., limiting the duration of a given write cycle. The write cycle may involve writing data continuously along adjacent portions of the disk media (e.g., writing of data in adjacent segments of a track in the outer diameter (OD) region of a platter), with an intermittent duty write current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.