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:
Jun. 21, 2022
Filed:
Jul. 25, 2019
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Hiroyuki Tezuka, Kanagawa, JP;
Masami Kuroda, Kanagawa, JP;
SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa, JP;
Abstract
The reference cells used for reading out data are tested efficiently so as to improve the reliability of the readout data. A memory circuit includes multiple memory arrays, a selection circuit, and a sense amplifier. The selection circuit selects values output from memory cells in any of the multiple memory arrays so as to supply a first value and a second value. A sense amplifier has a first input terminal and a second input terminal. The sense amplifier amplifies and outputs the first value supplied to the first input terminal in reference to the second value supplied to the second input terminal.