Dynamic differential compression for storage device look-up table
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United States of America Patent
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Jun 12, 2018
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app pub date -
Aug 20, 2015
filing date -
Sep 24, 2014
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Abstract
A method for storing data on a storage device includes receiving data to be stored and a logical address for storing the data. A physical address is determined and the data to be stored is stored at the determined physical address. A table that associates logical addresses with physical addresses is examined to determine a difference relationship between the determined physical address and a corresponding physical address for one of other logical addresses. Information representing the determined physical address is stored in the table, in association with the received logical address, as a function of the determined difference relationship. A data storage device includes controller circuitry and memory for storing a lookup table that associates logical addresses with physical addresses. The controller circuitry operates in accordance with the method.
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