Patent · US Active

Data storage disc track centering

US7791831B2 · kind B2 · utility

3Cited by

14References

26Claims

0Family size

Assignee

Seagate Technology LLC · US

Inventors

James H. McGlennen · Eden Prairie, US
Ronald Eldon Anderson · Melbourne, AU

Key dates

Filing date	Oct 13, 2005
Grant date	Sep 7, 2010
Priority date	—
Expiry date	Feb 7, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG11B7/0953
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention is directed to methods and apparatus for repositioning a data storage disc on a spindle assembly, to reduce eccentricity of data on the disc. The eccentricity can be identified and be reduced automatically by determining the magnitude and direction of an eccentricity vector that representing a misalignment of a central point around which the data are arranged on a data storage disk with an axis of a spindle, and moving the disc so that the eccentricity vector is reduced. One technique for moving the disc is to push the edge of the disc so that the central point moves closer to the axis of the spindle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.