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:
Oct. 23, 1984
Filed:
Mar. 22, 1982
Applicant:
Inventor:
Kikuo Muramatsu, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360 69 ;
Abstract
A disk driving mechanism is provided with a program memory section storing programs corresponding to a plurality of operational modes of the device and a mode set switch for applying an operational mode to an input/output section of the device. A central processing unit is provided for recognizing the operational mode set by said mode set switch, and for operating the device according to a program read out of the program memory corresponding to the selected operational mode. According to the invention, a floppy or hard disk drive may be operated by itself, without the aid of a host computer, for the purpose of self-diagnosis.