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:
Apr. 07, 2026
Filed:
Dec. 21, 2023
Rohm Co., Ltd., Kyoto, JP;
Yuichi Kokusho, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A memory device includes: a word line selector (X decoder) configured to select word lines; a memory cell having cells that are connected to the word lines and to bit line units so as to be arrayed in a matrix; a bit detector configured to detect, via the bit line units, the logic values of the bit data stored in the cells connected to a selected word line; a data output circuit configured to output data based on the results of detection by the bit detector; and a controller. Fixed values are stored in part of the cells corresponding to a predetermined number of bits, and the controller compares, with expected values, the fixed values read from the part of the cells via the bit detector and the data output circuit.