Patent · US Active

Methods of modulating data frequency

US9466329B1 · kind B1 · utility

1Cited by
19References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 12, 2015
Grant dateOct 11, 2016
Priority date
Expiry dateSep 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.