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.

Date of Patent:
Jun. 06, 2017

Filed:

Apr. 22, 2015
Applicants:

Pil Sang Yoon, Hwaseong-si, KR;

Beom Kyu Shin, Seongnam-si, KR;

Jun Jin Kong, Yongin-si, KR;

Kwang Hoon Kim, Uiwang-si, KR;

Ung Hwan Kim, Seongnam-si, KR;

Myung Kyu Lee, Seoul, KR;

Inventors:

Pil Sang Yoon, Hwaseong-si, KR;

Beom Kyu Shin, Seongnam-si, KR;

Jun Jin Kong, Yongin-si, KR;

Kwang Hoon Kim, Uiwang-si, KR;

Ung Hwan Kim, Seongnam-si, KR;

Myung Kyu Lee, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/11 (2006.01); G11C 29/52 (2006.01); G06F 11/10 (2006.01); H03M 13/45 (2006.01); H03M 13/00 (2006.01); G11C 11/56 (2006.01); G11C 29/04 (2006.01);
U.S. Cl.
CPC ...
G11C 29/52 (2013.01); G06F 11/1012 (2013.01); G11C 11/5642 (2013.01); H03M 13/45 (2013.01); H03M 13/6325 (2013.01); G11C 2029/0411 (2013.01);
Abstract

A method of decoding data of a non-volatile memory device is provided. The method includes a first decoding operation of reading first hard decision data from the non-volatile memory device using a first hard decision read level and performing decoding using the first hard decision data; a second decoding operation of reading first soft decision data from the non-volatile memory device when the decoding fails in the first decoding operation, and performing decoding using the first soft decision; and a third decoding operation of changing from the first hard decision read level to a second hard decision read level when the decoding fails in the second decoding operation, reading second hard decision data using the second hard decision read level, and performing decoding either using the second hard decision data or using both the second hard decision data and the first soft decision data.


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