09244763 is referenced by 8 patents and cites 406 patents.

The various implementations described herein include systems, methods and/or devices that may enhance the reliability with which data can be stored in and read from a memory. The method includes obtaining symbol transition information corresponding to symbol read errors identified while reading data from flash memory cells in a flash memory device. The method further includes determining a reading threshold voltage offset, based at least in part on: a plurality of probability values determined from the symbol transition information; a current count of program-erase cycles; and a word line zone value for a word line zone containing the flash memory cells. Additionally, the method includes generating an updated reading threshold voltage in accordance with the reading threshold voltage offset and the current value of the reading threshold voltage.

Title
System and method for updating a reading threshold voltage based on symbol transition information
Application Number
14/29694
Publication Number
9244763 (B1)
Application Date
September 17, 2013
Publication Date
January 26, 2016
Inventor
Charles See Yeung Kwong
Redwood City
CA, US
Navneeth Kankani
Fremont
CA, US
Agent
Morgan Lewis & Bockius
Assignee
SANDISK ENTERPRISE IP
CA, US
IPC
G06F 11/10
G06F 11/00
G06F 12/00
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