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:
Aug. 11, 2015
Filed:
Feb. 20, 2013
Applicant:
Lsi Corporation, San Jose, CA (US);
Inventors:
Boris Livshitz, Eagan, MN (US);
Anamul Hoque, Lakeville, MN (US);
Jason Goldberg, St. Paul, MN (US);
Assignee:
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/02 (2006.01); G11B 5/012 (2006.01); G11B 5/09 (2006.01);
U.S. Cl.
CPC ...
G11B 5/012 (2013.01); G11B 5/02 (2013.01); G11B 5/09 (2013.01);
Abstract
Aspects of the disclosure pertain to a system and method for providing controllable steady state current waveshaping in a preamplifier of a data storage system (e.g., hard disk drive). The preamplifier provides an output including a write current waveform having a steady state current level that is controllable via the write block circuitry of the preamplifier. This enhances the ability of the waveform to promote improved on-track and off-track write performance.