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. 01, 1998
Filed:
Dec. 06, 1996
Kabushiki Kaisha Toshiba, Kanagawa-ken, JP;
Abstract
In a disk drive, the CPU uses the cylinder code recorded on the servo area on the disk and thereby senses the present position of the read head. The cylinder codes are the addresses of the tracks formed on the disk and indicate the track position of the read head. In the servo area, the redundant data for identifying the boundary between adjacent tracks is recorded in addition to the cylinder code. When the read head is located near the track boundary, the CPU receives the cylinder code and redundant data and thereby determines which one of the boundaries with adjacent tracks to the track identified by the cylinder code the read head is located nearby. This makes it possible to determine the present position of the read head even when the read head accurately is positioned near the boundary between adjacent tracks.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile