The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2005
Filed:
Jul. 08, 2003
Applicants:
Rainer Klaus Krause, Mainz, DE;
Edgar Maehringer-kunz, Muenster-Sarmasheim, DE;
Inventors:
Rainer Klaus Krause, Mainz, DE;
Edgar Maehringer-Kunz, Muenster-Sarmasheim, DE;
Assignee:
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B021/02 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a method and a system for testing a head gimbal assembly, the system comprising means () for inputting a control command to perform a long seek operation, means () for measuring the mechanical frequency response of the head gimbal assembly to the long seek operation, and means () for comparing the frequency response to a master frequency response ().