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:
Aug. 06, 2013
Filed:
May. 14, 2008
Applicants:
Masayuki Imagawa, Osaka, JP;
Tetsuo Furuichi, Osaka, JP;
Inventors:
Masayuki Imagawa, Osaka, JP;
Tetsuo Furuichi, Osaka, JP;
Assignee:
MegaChips Corporation, Osaka-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A memory controller carries out error detection on a wide range of area of a memory cell array, which includes not only readout addresses but also non-readout addresses. Thus, by carrying out error detection at an address at which an error occurs without accessing the address for readout, it is possible to detect occurrence of an error at the address. Accordingly, it is possible to prevent a 'read disturb phenomenon' in which repetition of access to a readout address for readout may probably cause an error at a non-readout address other than the readout address.