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:
Mar. 27, 2018

Filed:

Sep. 11, 2015
Applicant:

Toshiba Memory Corporation, Minato-ku, Tokyo, JP;

Inventors:

Shinichiro Nakazumi, Kawasaki Kanagawa, JP;

Katsuhiko Ueki, Tokyo, JP;

Yoshihisa Kojima, Kawasaki Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/10 (2006.01); G11C 16/26 (2006.01); G11C 7/10 (2006.01); G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1068 (2013.01); G06F 11/1072 (2013.01); G11C 7/1063 (2013.01); G11C 16/0483 (2013.01); G11C 16/26 (2013.01);
Abstract

According to one embodiment, a memory system includes a memory, and a processor. The memory converts an amount of charge held by a memory cell into a value. The processor executes a first process of reading first data from the memory. The processor executes a second process of reading the first data by making the memory use a first determination potential different in a case where error correction of the first data read through the first process is failed. The processor executes a third process of reading second data from the memory by making the memory use a third determination potential in a case where error correction of the first data read through the second process is succeeded. The third determination potential is the first determination potential used by the memory in a case where error correction of the first data read through the second process is succeeded.


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