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:
May. 22, 2018
Filed:
Oct. 06, 2015
Sony Corporation, Tokyo, JP;
Kenichi Nakanishi, Tokyo, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
To perform refresh without saving data, and prevent corruption of data in non-volatile memories. A number-of-write-operations information holding unit holds number-of-write-operations information, which is the number of write operations of a non-volatile memory to which access is made in units of pages which are divided by a page size. A determination unit determines whether or not refresh, which is reversing of values of all memory cells constituting the pages, is necessary on the basis of the held number-of-write-operations information. A write control unit further performs the refresh in addition to writing when the refresh is necessary on the basis of a result of the determination at a time of the writing with respect to the pages.