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:
Jun. 30, 1992
Filed:
May. 10, 1990
Applicant:
Inventors:
Assignee:
TEAC Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 7707 ; 360 60 ; 360 7708 ; 369 4433 ;
Abstract
A transducer position control system capable of shockproofing a hard disk data storage apparatus. Included is an off-track detector circuit relying on servo bursts prerecorded on the disk for detecting if the transducer is positioned within predetermined limits on any desired one of the concentric data tracks on the disk. If not, the off-track detector circuit signals a write circuit to inhibit writing. A programmed microcomputer may be employed to retry the writing of the same data on the disk sector where the transducer has gone off the track.