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:
Feb. 02, 1999
Filed:
Mar. 15, 1996
Kazuhito Shimomura, Tokyo, JP;
Kabushiki Saisha Toshiba, Kawasaki, JP;
Abstract
In a self-servo writing mode, parameters such as a moving amount of a head, a time delay and the like are measured and detected by using preservo information recorded beforehand on, for instance, an outermost periphery of a disk. In accordance with the detected parameters, the head is positioned in a predetermined radial position on the disk and virtual servo information and servo information are written. Then, in accordance with at least either the virtual servo information or the servo information, the head is positioned in a next predetermined radial position and the virtual servo information and the servo information are written. After writing on a full surface of the disk is completed, a normal mode is switched ON and writing/reading of data via the head can be performed.