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. 29, 2000
Filed:
Aug. 28, 1997
Masashi Tabata, Fukushima-ken, JP;
Alps Electric, Co., Ltd., Tokyo, JP;
Abstract
A method of writing servo patterns to a floppy disk with use of a magnetic head having a head gap wider than the track pitch of the floppy disk, which method comprises writing a servo pattern to one track, thereafter moving the magnetic head by a predetermined distance in the width direction of the track to write a servo pattern, then at the time of writing servo patterns successively for a plurality of tracks in the same way as above, selecting appropriately a supply timing of write data and that of erase data to be fed to the magnetic head, and erasing in the next writing of a servo pattern a write portion of a servo pattern which deviated from the track width in the previous writing thereof.