DECODER FOR A MEMORY DEVICE, MEMORY DEVICE AND METHOD OF DECODING A MEMORY DEVICE
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United States of America Patent
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Issued Date -
Oct 29, 2015
app pub date -
Apr 21, 2015
filing date -
Apr 25, 2014
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Abstract
According to embodiments of the present invention, a decoder for a memory device is provided. The decoder includes an error detection circuitry configured to multiply a vector of one or more data words with a parity matrix to determine a plurality of syndrome values and generate a plurality of coefficients from multiplying a syndrome vector with an inverse of a syndrome matrix; and an error correction circuitry configured to perform a Chien search on a first part of the plurality of coefficients to determine error indicators indicating error locations in a first part of the one or more data words, and subsequently on a second part of the plurality of coefficients to determine error indicators indicating error locations in a second part of the one or more data words. According to further embodiments of the present invention, a memory device and method of decoding a memory device are also provided.
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