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:
Apr. 08, 2014
Filed:
Feb. 13, 2013
Western Digital Technologies, Inc., Irvine, CA (US);
Joe C. Lee, Fullerton, CA (US);
Nicholas M. Warner, Livermore, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A multi-head disk drive is disclosed comprising a plurality of disk surfaces, and a head assembly comprising a plurality of heads, wherein each disk surface comprises a plurality of data zones, and each data zone having a data transfer rate different from the other zones of the respective disk surface. A controller is operable to sequentially write a sequence of data blocks to the plurality of disk surfaces in accordance with a list of head-zone combinations, each head-zone combination corresponding to one of the heads and one of the data zones of the respective disk surface. The head-zone combinations in the list are ordered from highest data transfer rate to lowest data transfer rate, and each disk surface comprises a pivot point defining a direction of writing data in the data zones from one of an outer diameter toward a middle diameter and an inner diameter toward the middle diameter.