Patent · US Active

Suppression of seek repeatable runout

US8730614B2 · kind B2 · utility

0Cited by

11References

19Claims

0Family size

Assignee

Seagate Technology LLC · US

Inventors

Josiah Natan Wernow · Minneapolis, US
Raye A. Sosseh · Minneapolis, US
Randall D. Hampshire · Agra, US

Key dates

Filing date	Sep 5, 2012
Grant date	May 20, 2014
Priority date	—
Expiry date	Sep 6, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/59627
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The disclosure is related to an apparatus and methods of suppressing seek repeatable runout. In a particular embodiment, a servo loop is disclosed. The servo loop includes a seek signal generation component that generates a seek trajectory acceleration signal. The servo loop also includes a STRRO suppression component that is coupled to the seek signal generation component. The STRRO suppression component injects STRRO suppression signals into the seek trajectory acceleration signal and outputs an STRRO suppressed seek trajectory acceleration signal.

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