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:
Feb. 03, 2015
Filed:
Feb. 03, 2014
Applicant:
Imation Corp., Oakdale, MN (US);
Inventors:
Douglas W. Johnson, Stillwater, MN (US);
Roni J. Dornfeld, Hugo, MN (US);
Stephen J. Rothermel, Roseville, MN (US);
Assignee:
Imation Corp., Oakdale, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 27/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method comprises generating first and second magnetic field components in a magnetic medium, the second magnetic field component substantially opposite the first. A pattern is written onto the magnetic medium, and a signal is generated by reading the pattern. The magnitude of the second magnetic field component is controlled based on an asymmetry of the signal.