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:
Sep. 26, 2000
Filed:
Nov. 25, 1997
Applicant:
Inventor:
Takanori Fujimoto, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
701-1 ; 701115 ; 701 53 ; 701 35 ; 701 31 ; 701 34 ; 701 33 ; 701102 ; 477108 ; 395712 ;
Abstract
The contents of a ROM are highly reliably changed while the ROM is attached to a substrate. A vehicle control device has an electrically programmable nonvolatile memory storing a vehicle control program. A ROM update process includes a collation in which a check is made to determine whether the updating of the ROM was correctly executed. An abnormal process ensures an output from the control device clearly is an abnormal control amount under even ordinary vehicle drive conditions.