08261136 is referenced by 38 patents and cites 19 patents.

A method and device for selectively refreshing a region of a non-volatile memory of a data storage device is disclosed. In a particular embodiment, a method is disclosed that includes comparing a time stamp received from a host device to a first time stamp retrieved from a data storage device for a first region of a non-volatile memory, the first region including a least recently accessed region of a memory array within the data storage device. The method also includes selectively refreshing the first region based on a comparison of a difference between the time stamp received from the host device and the first time stamp as compared to a threshold, where the threshold is adjusted based on a first error count corresponding to a number of errors detected by an error correction code (ECC) engine with respect to data retrieved from the first region.

Title
Method and device for selectively refreshing a region of a memory of a data storage device
Application Number
12/494210
Publication Number
8261136 (B2)
Application Date
June 29, 2009
Publication Date
September 4, 2012
Inventor
Stephen Skala
Fremont
CA, US
Manuel Antonio D Abreu
El Dorado Hills
CA, US
Agent
Toler Law Group PC
Assignee
Sandisk Technologies
TX, US
IPC
G06F 12/16
G06F 11/10
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