Method and system for identifying erased memory areas

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11327837
APP PUB NO 20210103496A1
SERIAL NO

17127306

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Abstract

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The subject technology provides for scanning blocks of a flash memory device for erased pages. A first codeword read from a page of a block in a flash memory device is received and provided to a first decoder for decoding. In response to receiving a first success indicator from the first decoder indicating that the first codeword was successfully decoded, first decoded data is provided from the first decoder to a second decoder for verification of the first decoded data. In response to receiving a first failure indicator from the second decoder indicating that the first decoded data was not verified, the page of the block is identified as being in an erased state based on the first success indicator received from the first decoder and the first failure indicator received from the second decoder.

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Patent Owner(s)

Patent OwnerAddress
SANDISK TECHNOLOGIES INC951 SANDISK DRIVE LEGAL DEP MILPITAS CA 95035

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barndt, Richard David San Diego, US 32 442
Karakulak, Seyhan San Diego, US 18 391
Kayser, Scott San Diego, US 10 57
Nemati, Anaraki Majid San Diego, US 16 108
Weathers, Anthony Dwayne San Diego, US 20 332

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