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:
Mar. 05, 2002
Filed:
Nov. 01, 1999
James K. Knudsen, Woodbury, MN (US);
Arne B. Boberg, Shoreview, MN (US);
Robert S. Jackson, Little Canada, MN (US);
Leslie M. Milner, Circle Pines, MN (US);
Brian K. Parliament, Woodbury, MN (US);
Daniel P. Stubbs, Marine on St. Croix, MN (US);
Mark P. Lubratt, White Bear Lake, MN (US);
Israel Tzur, Longmont, CO (US);
David M. Perry, Lafayette, CO (US);
Imation Corp., Oakdale, MN (US);
Abstract
The present invention provides methods and apparatus for stabilizing data storage media during laser servowriting of optical servo tracks on the media. The apparatus includes a spindle for rotating the media during servowriting, a fixed media platform, and a media support for stabilizing the vertical position of the media during servowriting. The media support may include channels to reduce or control the formation of an air bearing in the area of servowriting to stabilize the vertical positioning of the media. The media support may also include a vacuum slot for drawing a vacuum through the channels.