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:
May. 22, 2001
Filed:
Sep. 07, 1999
Yiping Ma, Layton, UT (US);
James M. Bero, Ogden, UT (US);
Iomega Corporation, Roy, UT (US);
Abstract
Sufficient 1f runout is intentionally generated on tracks on a data storage disk to prevent 2f runout from interfering with the alignment of a read/write head with respect to the tracks. The tip of a disk drive motor spindle is misaligned a predetermined distance with respect to the center of rotation of the disk drive spindle motor, a data storage disk is mounted on the spindle bushing centered on the tip, the data storage disk is spun up to an operational speed, and the read/write head is loaded onto a surface of the data storage disk, thereby generating sufficient 1f runout to prevent 2f runout from interfering with the alignment of the read/write head with respect to the tracks. Alternatively, the spindle bushing can be disposed at a non-perpendicular angle with respect to the axis of rotation of the motor spindle. The 1f runout has a peak amplitude that is at least four times greater than the 2f peak amplitude.