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:
Jul. 17, 2012
Filed:
Feb. 14, 2008
Bok-gue Park, Hwaseong-si, KR;
Bok-Gue Park, Hwaseong-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A semiconductor memory device may include a parity generating circuit, a memory cell array, an error calculating circuit and an error corrector. The parity generating circuit generates parities having different number of bits according to types of a partial array self-refresh mode, and selects one of the parities to output a first parity. The error calculating circuit calculates an error based on a first data corresponding to the input data and a second parity corresponding to the first parity and outputs a first error data. The error corrector corrects the first data based on the first data and the first error data.