Patent · US Active

Data storage device independently driving outer and inner fine actuators

US11482246B2 · kind B2 · utility

1Cited by

16References

17Claims

0Family size

Assignee

Western Digital Technologies, Inc. · US

Inventors

Yanning Liu · San Jose, US
Jaesoo Byoun · Irvine, US

Key dates

Filing date	Feb 15, 2021
Grant date	Oct 25, 2022
Priority date	—
Expiry date	Feb 15, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/4873
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A data storage device is disclosed comprising a plurality of disks each comprising a top disk surface and a bottom disk surface. A plurality of inner actuator arms each comprise a first inner fine actuator configured to actuate a top head over one of the top disk surfaces and a second inner fine actuator configured to actuate a bottom head over one of the bottom disk surfaces. A first outer actuator arm comprises a first outer fine actuator configure to actuate a top head over a top disk surface of a top disk, and a second outer actuator arm comprises a second outer fine actuator configured to actuate a bottom head over a bottom disk surface of a bottom disk, wherein the inner fine actuators are controlled independent from the outer fine actuators.

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