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. 03, 2006
Filed:
Sep. 30, 2003
Hanan Kupferman, Diamond Bar, CA (US);
Hanan Kupferman, Diamond Bar, CA (US);
Western Digital Technologies, Inc., Lake Forest, CA (US);
Abstract
A method for reducing the length of servo-wedges in a disk drive comprising a concentric tracks, each track comprising embedded servo-wedges each having a track identification field (TIF) and a servo-wedge identification field (WIF), wherein the embedded servo-wedges are grouped into servo-wedge groups comprising a first and second sub-group of servo-wedges. The method includes selecting a servo-wedge from a selected servo-wedge group; storing a first subset of a track identification data (TID) corresponding to a selected track in TIF of selected servo-wedge; storing a second subset of TID in a first portion of WIF of selected servo-wedge if selected servo-wedge is in second sub-group; storing a first wedge identification data (WID) corresponding to selected servo-wedge in a second portion of the WIF if selected servo-wedge is in second sub-group; and storing a second WID corresponding to selected servo-wedge in WIF if selected servo-wedge is in first sub-group.