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:
Sep. 01, 2015

Filed:

Jan. 07, 2014
Applicant:

Seagate Technology Llc, Cupertino, CA (US);

Inventors:

Ara Patapoutian, Hopkinton, MA (US);

Bernardo Rub, Sudbury, MA (US);

Bruce D. Buch, Westborough, MA (US);

Assignee:

SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); H03M 13/00 (2006.01); G06F 11/10 (2006.01); H03M 13/45 (2006.01); G11C 16/26 (2006.01); H03M 13/11 (2006.01); H03M 13/37 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1008 (2013.01); G06F 11/1048 (2013.01); G11C 16/26 (2013.01); G11C 29/844 (2013.01); H03M 13/1108 (2013.01); H03M 13/1111 (2013.01); H03M 13/3707 (2013.01); H03M 13/45 (2013.01); H03M 13/451 (2013.01); H03M 13/458 (2013.01);
Abstract

Approaches for decoding data read from memory cells of a nonvolatile, solid state memory involve attempting to decode hard data using a hard decoding process prior to a time that soft data is available to the decoder. The hard data includes information about the digital symbols stored in the memory cells without data confidence information. The soft data includes information about the digital symbols stored in the memory cells and data confidence information. In response to the hard decoding process failing to achieve convergence, after the soft data becomes available to the decoder, the soft data is decoded using a soft decoding process. The decoder generates an output of the decoded data after the hard decoding process or the soft decoding process achieves convergence.


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