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:
Apr. 15, 2014
Filed:
Mar. 09, 2012
Boris Livshitz, Eagan, MN (US);
Jeffrey A. Gleason, Burnsville, MN (US);
Jason S. Goldberg, Saint Paul, MN (US);
Paul Mazur, Cottage Grove, MN (US);
Cameron C. Rabe, Inver Grove Heights, MN (US);
Boris Livshitz, Eagan, MN (US);
Jeffrey A. Gleason, Burnsville, MN (US);
Jason S. Goldberg, Saint Paul, MN (US);
Paul Mazur, Cottage Grove, MN (US);
Cameron C. Rabe, Inver Grove Heights, MN (US);
LSI Corporation, San Jose, CA (US);
Abstract
A hard disk drive or other disk-based storage device comprises a storage disk, a read/write head configured to read data from and write data to the disk, and control circuitry coupled to or otherwise associated with the read/write head. The control circuitry comprises a write driver configured to generate a write signal for data to be written to the storage disk, and a multiple-slope transition controller associated with the write driver and configured to control a data transition in the write signal such that the data transition comprises at least two different segments each having a different slope, with the transition controller comprising separate slope control mechanisms for each of the segments. By way of example, the data transition may comprise a dual-slope transition having first and second segments arranged sequentially between a start point and an end point of the data transition.