Patent · US Active

Head-disc interface (HDI) modal response monitoring

US7742255B2 · kind B2 · utility

22Cited by

14References

20Claims

0Family size

Assignee

Seagate Technology LLC · US

Inventors

Antanas Daugela · Bloomington, US
Subra Nagarajan · Livermore, US
Jason W. Riddering · Prior Lake, US
Neal Frank Gunderson · Lake Elmo, US
John S. Wright · Milwaukee, US
Stefan Ionescu · Burnsville, US
Rick Pfahl Freeman · Northfield, US
Erick J. Lindquist · Oakdale, US
Andrew R. Motzko · Burnsville, US
Zine-Eddine Boutaghou · Vadnais Heights, US

Key dates

Filing date	Jul 11, 2007
Grant date	Jun 22, 2010
Priority date	—
Expiry date	Jul 5, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/607
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Apparatus and method for head-disc interface (HDI) modal response monitoring. A sensing element disposed on a rigid actuator arm is mechanically impedance matched to a head-disc interface (HDI) supported by the actuator arm to resonate at a predetermined frequency corresponding to at least one disturbance associated with the HDI.

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