14076579

Paragraph Number

148

In a further embodiment, the primary ECC module 302 may decode the first two ECC chunks 502 using the ECC check bits 508 of the primary/outer error correcting code, returning access data chunks 504, which include the access data encoded with at least the secondary/inner error correcting code. In another embodiment, the primary ECC module 302 may determine that the first two ECC chunks 502 are uncorrectable using the ECC check bits 508 of the primary/outer error correcting code. However, because the primary/outer error correcting code is a systematic code in the depicted embodiment, the primary ECC module 302 may return the access data chunks 504 with uncorrected errors for the use of other modules, such as the secondary ECC module 304 and/or the repetition code module 406 by simply discarding the check bits 508. In a further embodiment, because the access data chunks 504 include the access data encoded with at least the secondary/inner error correcting code, the secondary ECC module 304 and/or additional modules such as the repetition code module 406 may decode the access data chunks 504 despite errors left uncorrected by the primary ECC module 302. Access data chunks 504 are described further below with regard to FIG. 5B and FIG. 5C.

Added by DJM 2 2021