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.

Date of Patent:
Apr. 09, 2019

Filed:

Jun. 20, 2017
Applicant:

Oki Data Corporation, Tokyo, JP;

Inventors:

Kazuya Yamamoto, Tokyo, JP;

Keisuke Iwahashi, Tokyo, JP;

Keisuke Watanabe, Tokyo, JP;

Takashi Kobayashi, Tokyo, JP;

Keitaro Ishida, Tokyo, JP;

Yasushi Yamawaki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/85 (2013.01); G03G 15/08 (2006.01); G06F 11/30 (2006.01); G03G 15/00 (2006.01); G03G 21/18 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0863 (2013.01); G03G 15/5091 (2013.01); G03G 15/553 (2013.01); G03G 21/1889 (2013.01); G06F 11/3027 (2013.01); G06F 21/85 (2013.01); G03G 15/55 (2013.01); G03G 2215/0697 (2013.01);
Abstract

A memory control device includes a memory control part that controls memory through an interface part in accordance with a predetermined communication regulation, an illegal access detection part that detects an illegal access to the memory according to an access state from the memory control part to the memory and a signal state of the interface part, and a signal control part that switches the signal state of the interface part from a write-allowed state, in which the interface part is able to be written, to a write-inhibited state, in which the interface part is protected from being rewritten, when the illegal access is detected by the illegal access detection part.


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