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:
May. 29, 2001
Filed:
Feb. 17, 1999
Applicant:
Inventors:
Arne B. Boberg, Shoreview, MN (US);
Gary J Bohlman, New Brighton, MN (US);
Assignee:
Imation Corp., Oakdale, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 2/102 ;
U.S. Cl.
CPC ...
G11B 2/102 ;
Abstract
Drive systems for moving the optics sled in a laser servowriting system used to provide a servo pattern on the media of a magnetic data storage disk are disclosed. The drive systems include multiple actuators located about the centroidal axis of the optics sled. Moments induced by the multiple actuators acting on the optics sled can be balanced by varying the forces applied to the optics sled by the actuators. Also disclosed are control systems and methods for balancing the forces provided by the actuators by varying the gains on the signals driving the actuators.