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:
Jan. 23, 2018

Filed:

Jun. 06, 2014
Applicant:

SK Hynix Memory Solutions Inc., San Jose, CA (US);

Inventors:

Yu Kou, San Jose, CA (US);

Lingqi Zeng, San Jose, CA (US);

Jason Bellorado, San Jose, CA (US);

Marcus Marrow, San Jose, CA (US);

Assignee:

SK Hynix Memory Solutions Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/00 (2006.01); G06F 11/10 (2006.01); H03M 13/11 (2006.01); G06F 11/08 (2006.01); G11C 29/56 (2006.01); H03M 13/01 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1076 (2013.01); G06F 11/08 (2013.01); G11C 29/56004 (2013.01); H03M 13/1102 (2013.01); H03M 13/015 (2013.01);
Abstract

A storage system includes a channel detector, an LDPC decoder, and an erasure block. The channel detector is configured to receive data corresponding to data read from a storage and output an LLR signal. The LDPC decoder is configured to receive the LLR signal and output a feedback signal to the channel detector. The erasure block is configured to erase at a portion of at least one of the LLR signal and the feedback signal. A method for testing includes generating an error rate function corresponding to an erasure pattern. The function is a function of a number of LDPC iterations. The method includes determining testing parameters at least in part based on the error rate function, wherein the testing parameters comprise a testing number of LDPC iterations, a passing error rate, and the erasure pattern. The method includes testing storage devices using the testing parameters.


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