US 2017/0257121 A1 · TECHNOLOGIES FOR CORRECTING FLIPPED BITS FOR AN ERROR CORRECTION DECODE PROCESS

Abstract

Technologies for correcting flipped bits prior to performing an error correction decode process include an apparatus that includes a memory to store a redundant set of codewords and a controller to read data from the memory. The controller selects a codeword from the redundant set of codewords to read from the memory, analyzes the selected codewords to determine whether the codeword contains uncorrectable errors, reads remaining codewords in the redundant set that correspond to the selected codeword, combines the remaining codewords together to generate a rebuilt codeword, flips bits in sections of the rebuilt codeword that differ from the selected codeword by a threshold amount, and performs an error correction decode process based on the rebuilt codeword.

Claims25

Dependent claims

An apparatus comprising:

a memory to store a set of redundant codewords;
and
a controller to read data from the memory, wherein the controller is to:
compare a first codeword associated with the set of redundant codewords to a second codeword associated with the set of redundant codewords to determine whether a section of the first codeword differs from a corresponding section of the second codeword by at least a predefined threshold amount;
flip, in response to a determination that the section of the first codeword differs from the corresponding section of the second codeword by at least the predefined threshold amount, one or more bits in the section of the first codeword;
and
perform an error correction decode process based on the first codeword.

4 more elements

One or more machine-readable storage media comprising a plurality of instructions stored thereon that, when executed, cause an apparatus to:

compare a first codeword associated with a redundant set of codewords stored in a memory of the apparatus to a second codeword associated with the set of redundant codewords to determine whether a section of the first codeword differs from a corresponding section of the second codeword by at least a predefined threshold amount;
flip, in response to a determination that the section of the first codeword differs from the corresponding section of the second codeword by at least the predefined threshold amount, one or more bits in the section of the first codeword;
and
perform an error correction decode process based on the first codeword.

1 more element

A method comprising:

comparing, by a controller of an apparatus, a first codeword associated with a redundant set of codewords stored in a memory of the apparatus to a second codeword associated with the set of redundant codewords to determine whether a section of the first codeword differs from a corresponding section of the second codeword by at least a predefined threshold amount;
flipping, by the controller and in response to a determination that the section of the first codeword differs from the corresponding section of the second codeword by at least the predefined threshold amount, one or more bits in the section of the first codeword;
and
performing, by the controller, an error correction decode process based on the first codeword.

1 more element

Dependencies are inferred from the claim text.

Technologies for correcting flipped bits for an error correction decode process

Life of this patent

Technologies for correcting flipped bits for an error correction decode process

Life of this patent

Abstract

Claims25