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:
Sep. 13, 2011
Filed:
Apr. 28, 2008
Icko E. Tim Iben, Santa Clara, CA (US);
Darrell G. Follett, San Jose, CA (US);
Guillermo Paniagua, Milpitas, CA (US);
Icko E. Tim Iben, Santa Clara, CA (US);
Darrell G. Follett, San Jose, CA (US);
Guillermo Paniagua, Milpitas, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In one embodiment, a method for detecting a damaged magnetoresistive sensor includes analyzing readback signals of a plurality of sensors each being positioned over data tracks on a passing magnetic medium; determining whether at least one of the readback signals is out of phase with respect to the other readback signals, and/or whether at least one of the readback signals has a significantly lower amplitude that the other readback signals. Additional methods are also presented.