Fixed size soft bit lossy compression in flash memory

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United States of America Patent

PATENT NO 11456754
SERIAL NO

17177940

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Abstract

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A memory includes, in one embodiment, one or more storage elements; read/write circuitry; and compressed bit circuitry. The read/write circuitry is configured to read a set of hard bits from the one or more storage elements, and sense a set of soft bits while reading the set of hard bits from the one or more storage elements, the set of soft bits having a first fixed size, and the set of soft bits indicating a reliability of the set of hard bits. The compressed soft bit circuitry is configured to generate, with a fixed size soft bit lossy compression algorithm, a fixed size compressed soft bits by compressing the set of soft bits, the fixed size compressed soft bits having a second fixed size that is smaller than the first fixed size, and output the fixed size compressed soft bits to a memory-to-controller bus.

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Patent Owner(s)

  • WESTERN DIGITAL TECHNOLOGIES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alrod, Idan Herzeliya, IL 242 7163
Bazarsky, Alexander Holon, IL 158 1094
Li, Yan Milpitas, US 1322 19576
Sharon, Eran Rishon Lezion, IL 322 8337
Sravan, A Harihara Bangalore, IN 6 5
Zamir, Ran Ramat Gan, IL 82 379

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