S-tec Corporation

Levente Peter Jakab

Dillip Kumar Dash

Xinde Hu

Rohit Komatineni

The subject technology provides a decoding solution that supports multiple choices of code rates. A decoder may be configured to receive a selected code rate from a plurality of code rates. On the selection of the code rate, the decoder may determine a circulant size based on the code rate, and, on receiving the codeword, update, during one or more parity-check operations, a number of confidence values proportional to the circulant size in each of a plurality of memory units, each number of confidence values corresponding to a portion of the codeword.

Low density parity check code decoding system and method

The subject disclosure describes a method for performing error code correction, the method includes, loading a code word including a plurality of encoded bits into a memory array, initializing, into one or more of a plurality of memory units, a plurality of bits associated with each of the encoded bits, wherein the plurality of bits initialized for each of the encoded bits is based on a value of the associated encoded bit and wherein the plurality of encoded bits and the plurality of bits initialized for each of the encoded bits includes soft information. In certain aspects, the method further includes decoding the code word using the soft information and outputting the decoded code word from the memory array. A decoder and flash storage device are also provided.

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San Diego, CA, United States of America

Levente Peter Jakab