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:
Dec. 08, 2020
Filed:
Feb. 26, 2019
Toshiba Memory Corporation, Tokyo, JP;
Akira Katayama, Yokohama Kanagawa, JP;
TOSHIBA MEMORY CORPORATION, Tokyo, JP;
Abstract
A nonvolatile storage device includes a first wiring extending in a first direction, a second wiring extending in a second direction, a memory cell between the first and second wirings, a reading circuit configured to read data from the memory cell during a first and a second reading period, a writing circuit configured to write reference data into the memory cell during a writing period between the first and second reading periods, and a determination circuit configured to compare a first voltage which is based on the data read during the first reading period with a second voltage which is based on the data read during the second reading period, to determine the value of the data read during the first reading period. A current is caused to flow in the memory cell during the first reading period, the writing period, and the second reading period.