Data compression with entropy encoding

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United States of America Patent

PATENT NO 11914862
APP PUB NO 20230305703A1
SERIAL NO

17701578

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An apparatus includes a first encoder circuit configured to compress a block of data using dictionary based compression and a second encoder circuit connected to the first encoder circuit to receive the compressed block of data from the first encoder circuit. The second encoder circuit is configured to further compress the compressed block of data according to a codebook. The codebook is based on a distribution of data of a prior block of data or a distribution of data of a portion of the block of data that is less than the block of data. The operation of the second encoder circuit overlaps with the operation of the first encoder circuit to achieve high throughput and avoid the need for a large block of memory (e.g., SRAM) to occupy the data in flight until the second encoder circuit can start.

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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 Herzliya, IL 242 7204
Sharon, Eran Rishon Lezion, IL 322 8378
Zamir, Ran Ramat Gan, IL 82 388

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