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. 21, 2019
Filed:
Mar. 10, 2017
Toshiba Memory Corporation, Minato-ku, Tokyo, JP;
Masanobu Shirakawa, Chigasaki Kanagawa, JP;
Kenji Sakurada, Yamato Kanagawa, JP;
Hitoshi Shiga, Kawasaki Kanagawa, JP;
Toshiba Memory Corporation, Tokyo, JP;
Abstract
A memory system includes: a semiconductor memory device; and a controller capable of issuing a first read instruction and a second read instruction different from the first read instruction. When receiving the first read instruction, the semiconductor memory device reads first data and second data from a memory cell array, holds the first data and the second data in the latch circuit, and outputs the first data to the controller. When receiving the second read instruction, the semiconductor memory device outputs third data based on the second data held by the latch circuit to the controller. The controller performs soft decision processing using the third data.