Non-volatile memory and method with multi-stream updating

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United States of America Patent

PATENT NO 8151035
APP PUB NO 20080301359A1
SERIAL NO

12189396

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Abstract

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In a memory that is programmable page by page and each page having multiple sectors that are once-programmable, even if successive writes are sequential, the data recorded to an update block may be fragmented and non-sequential. Instead of recording update data to an update block, the data is being recorded in at least two interleaving streams. When a full page of data is available, it is recorded to the update block. Otherwise, it is temporarily recorded to the scratch pad block until a full page of data becomes available to be transferred to the update block. Preferably, a pipeline operation allows the recording to the update block to be set up as soon as the host write command indicates a full page could be written. If the actual write data is incomplete due to interruptions, the setup will be canceled and recording is made to the scratch pad block instead.

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Patent Owner(s)

Patent OwnerAddress
SANDISK TECHNOLOGIES LLC6900 DALLAS PARKWAY SUITE 325 PLANO TX 75024

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bennett, Alan David Edinburgh, GB 48 3666
Gorobets, Sergey Anatolievich Edinburgh, GB 176 9686
Smith, Peter John Eskbank, GB 25 1601

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