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:
Nov. 18, 2003
Filed:
Jun. 25, 2001
Applicant:
Inventor:
Mayumi Maeda, Ome, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/208 ; G06F 1/214 ;
U.S. Cl.
CPC ...
G06F 1/208 ; G06F 1/214 ;
Abstract
In a computer, software may make an access to a controller in order to rewrite the contents of a nonvolatile storage device. If so, an interruption signal is automatically supplied to a CPU. In response to the interruption signal the CPU stops executing the software and starts performing an interruption process. During the interruption process it is determined whether the access made by the software is a right one. If the access is a wrong one, the rewriting of the contents of the nonvolatile storage device is prohibited at once.