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. 18, 2004
Filed:
Jul. 16, 2001
Applicant:
Inventors:
Alan R. Olson, Cottage Grove, MN (US);
Denis J. Langlois, River Falls, WI (US);
Assignee:
Imation Corp., Oakdale, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/09 ; G11B 5/584 ;
U.S. Cl.
CPC ...
G11B 5/09 ; G11B 5/584 ;
Abstract
The invention provides techniques for verifying that a servo pattern has been properly recorded. For example, the amplitude of a signal corresponding to magnetic servo patterns can be detected and then compared to a threshold to determine whether the servo patterns were properly recorded. The signal strength may be determined for a servo band that includes multiple servo tracks. To enable this determination, a magnetic head may be designed to have sufficient width to enable the head to detect magnetic signal strength corresponding to more than one servo track.