Skhynix Inc.

HongChich Chou

Fan Zhang

Naveen Kumar

Aman Bhatia

Chenrong Xiong

Johnson Yen

Yi-Min Lin

Abhiram Prabhakar

Techniques are described for codeword decoding. In an example, a system computes a checksum for a codeword based on the codeword and a parity check matrix. The system compares the checksum to thresholds. Each threshold is associated with a different decoder from a plurality of decoders available on the system. The system selects a decoder from the plurality of decoders. The decoder is selected based on the comparison of the checksum to the thresholds. The system decodes the codeword by using the selected decoder.

Early selection decoding and automatic tuning

Memory systems may include a memory storage, and an error correcting code (ECC) unit suitable for determining a number of unsatisfied check nodes of a channel output in a decoding iteration of a decoding process, updating a flipping indicator of a variable node, comparing the flipping indicator of the variable node with a flipping threshold associated with the decoding process, flipping a bit of the variable node when the flipping indicator is greater than the flipping threshold, and ending the decoding process when decoding is determined to be successful or a maximal iteration number is reached.

Bit-flipping LDPC decoding algorithm with hard channel information

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Milpitas, CA, United States of America

HongChich Chou