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. 22, 2009
Filed:
Mar. 07, 2008
Applicants:
Kyoung-whan OH, Gwanak-gu, KR;
Bong-jin Lee, Tongyeong-si, KR;
Inventors:
Kyoung-whan Oh, Gwanak-gu, KR;
Bong-jin Lee, Tongyeong-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 21/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Embodiments of the invention reduce abrasion of a disk via a dithering process that spreads a friction area between a magnetic head and the disk when a magnetic head lifts from the surface of the disk. In embodiments of the invention, the dithering process is executed only when the magnetic head is latched in a parking zone of the disk and when a disk spindle motor is in an acceleration mode.