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:
Jul. 17, 2012
Filed:
Sep. 11, 2009
Jerome F. Richgels, Sunnyvale, CA (US);
Henri Sutioso, Saratoga, CA (US);
Allen Cheng Wu HU, Fremont, CA (US);
Scott A. Hughes, Cupertino, CA (US);
Jerome F. Richgels, Sunnyvale, CA (US);
Henri Sutioso, Saratoga, CA (US);
Allen Cheng Wu Hu, Fremont, CA (US);
Scott A. Hughes, Cupertino, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
A system includes a self-servo-write (SSW) module, a read module, and a write module. The SSW module writes servo spirals on a magnetic medium of a hard disk drive (HDD) via a write head of the HDD. The read module reads the servo spirals via a read head of the HDD and generates read signals. The write module writes non-servo data on the magnetic medium via the write head based on the read signals before the SSW module writes servo wedges on the magnetic medium.