Patent · US Active

Data storage device independently driving outer and inner fine actuators

US11482254B2 · kind B2 · utility

0Cited by

16References

20Claims

0Family size

Assignee

Western Digital Technologies, Inc. · US

Inventors

Manoj Keshavan · San Jose, US
Yanning Liu · San Jose, US
Hitoshi Shindo · San Jose, US
Siddhesh Vivek Sakhalkar · Berkeley, US

Key dates

Filing date	Aug 6, 2021
Grant date	Oct 25, 2022
Priority date	—
Expiry date	Aug 6, 2041

Classification

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

Abstract

Control circuitry is disclosed configured to control inner fine actuators of a first plurality of inner actuator arms and independently control a first outer fine actuator of a first outer actuator arm. Inner fine actuators of a second plurality of inner actuator arms are controlled while independently controlling a second outer fine actuator of a second outer actuator arm. Each actuator arm comprises at least one head configured to access a disk surface of a disk.

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