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:
Oct. 20, 1998
Filed:
Aug. 29, 1996
Bong-Jin Lee, Seoul, KR;
SamSung Electronics Co., Ltd., Suwon, KR;
Abstract
A voice coil motor control technique which can improve the reliability of a hard disk drive by decentralizing the abrasion of a parking zone of a disk used as a magnetic recording medium includes: when power is first supplied to the hard disk drive having a head positioned in a first region within the parking zone, driving a spindle motor in order to rotate the disk and supplying a fixed current to a voice coil motor in order to move the head positioned in the first region therewithin; applying to the voice coil motor, a fixed current in a reverse direction so as to move the head to a second region within the parking zone; and supplying a unlatching current to the voice coil motor in order to move the head to a data zone when a uniform velocity rotation of the spindle motor is sensed.