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. 10, 2003
Filed:
Jan. 10, 2000
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., LTD, Osaka-fu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/900 ; H02H 3/05 ;
U.S. Cl.
CPC ...
G06F 1/900 ; H02H 3/05 ;
Abstract
A computer device for production equipment comprises an arithmetic unit , an input device for inputting operation data, a display device for displaying operation data, and an HDD device for storing an arithmetic unit executed processing program, and operation results. In the HDD device there are provided a main drive unit and a backup drive unit, which are constituted so as to maintain the same contents, and to selectively connect the arithmetic unit to one of the drive units inside the HDD device , a drive unit selecting circuit is provided on the HDD device side, and a switch for switching this drive unit selecting circuit is provided on the outside of the computer device