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:
Aug. 20, 2019

Filed:

Mar. 05, 2018
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventors:

Daisuke Saida, Shinagawa Tokyo, JP;

Yousuke Isowaki, Yokohama Kanagawa, JP;

Michael Arnaud Quinsat, Yokohama Kanagawa, JP;

Kenichiro Yamada, Minato Tokyo, JP;

Kosuke Tatsumura, Yokohama Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/16 (2006.01); G06N 7/00 (2006.01);
U.S. Cl.
CPC ...
G11C 11/1675 (2013.01); G06N 7/005 (2013.01); G11C 11/161 (2013.01); G11C 11/1673 (2013.01);
Abstract

A memory system has a nonvolatile memory having a plurality of readable and writable memory cells, a write voltage control unit that controls at least one of a voltage value and a pulse width of a write voltage of the nonvolatile memory in accordance with a weight of a signal processing path or a signal processing node, a write unit that writes data in two or more memory cell groups among the plurality of memory cells using the write voltage controlled by the write voltage control unit, a reversal probability detection unit that detects a reversal probability of the memory cell group when writing data is written by the write unit, and a weight conversion unit that converts the detected reversal probability into a weight.


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