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:
May. 02, 2006
Filed:
Dec. 20, 2000
Yusuke Kawasaki, Kawasaki, JP;
Shigeru Hashimoto, Kawasaki, JP;
Koken Yamamoto, Kawasaki, JP;
Tomomi Shiobara, Kawasaki, JP;
Ryoichi Yanagi, Kawasaki, JP;
Yusuke Kawasaki, Kawasaki, JP;
Shigeru Hashimoto, Kawasaki, JP;
Koken Yamamoto, Kawasaki, JP;
Tomomi Shiobara, Kawasaki, JP;
Ryoichi Yanagi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An access violation of the program is monitored by the access monitor which is a hardware. The access monitor acquires a signal input from the CPU to a memory. The access monitor includes an access permission table as information of the memory region to be permitted to each program, and detects the access violation of the signal from the CPU by referring thereto. In this manner, the unjust access is monitored by the hardware, thereby preventing the unjust access by rewriting in software.