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. 13, 1996
Filed:
Aug. 20, 1993
Applicant:
Inventors:
Gordon A Harwood, Longmont, CO (US);
Harold J Beecroft, Colorado Springs, CO (US);
Robert L Metz, Westminster, CO (US);
Assignee:
Maxtor Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ; G11B / ;
U.S. Cl.
CPC ...
318563 ; 318611 ; 318460 ; 360 69 ; 360105 ; 360 60 ;
Abstract
A hard disk drive that contains a detection circuit which senses the back emf of a voice coil. The detection circuit generates a shock detection signal when the back emf of the voice coil exceeds a pre-determined value. The write disable gate of the disk drive is disabled when the voltage detection circuit generates the shock detection signal.