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US 2012/0084622 A1Published application
System and method of data encoding
AssigneeSanDisk Technologies LLC
InventorsMANUEL ANTONIO D'ABREU, STEPHEN SKALA
Life of this patent
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Abstract
A method includes reading data from a data area of a word line and reading first ECC data from an ECC area of the word line. The method also includes, in response to determining that an error indicator exceeds a threshold, storing second ECC data in the ECC area. The second ECC data corresponds to a subsection of the data area.
Claims20
A method comprising:
- reading data from a data area of a word line of a memory and reading first error correction coding (ECC) data from an ECC area of the word line;
- and
- in response to determining that an error indicator exceeds a threshold,
- storing second ECC data in the ECC area, wherein the second ECC data
- corresponds to a subsection of the data area.
2 more elements
A method comprising:
- at a data storage device with a memory, performing:
- reading data from a data area and reading first ECC data from an ECC area, the first ECC data corresponding to the data read from the data area;
- and
- in response to an error indicator exceeding a threshold:
- generating second ECC data corresponding to a first portion of the data;
- generating third ECC data corresponding to a second portion of the data;
- and
- storing the first portion of the data, the second portion of the data, the first third ECC data, and the second ECC data in the memory.
5 more elements
A data storage device comprising:
- a memory including a word line, the word line having a data area and an error correction coding (ECC) area corresponding to the data area;
- and
- a controller, wherein the controller is configured to write data to the data area, to write first ECC data corresponding to the data to the ECC area in response to determining that an error indicator does not exceed a threshold, and to write second ECC data corresponding to a first portion of the data to the ECC area in response to determining that the error indicator exceeds the threshold.
Dependencies are inferred from the claim text.