Methods of modulating data frequency
US9466329B1 · kind B1 · utility
1Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2015 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Sep 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/10222
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods for determining a variable data frequency for recording data on a zone of a magnetic storage disc, each zone including a plurality of tracks and each track including a plurality of sectors, the method includes measuring a signal to noise ratio (S/N) around at least a first track in a first zone; and modulating a data frequency based on the measured S/N around the first track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.