ECC and RAID-type decoding

Abstract

A device includes a memory and a controller. The controller is configured to read codewords of a data structure from the memory. The codewords include a number of undecodable codewords that are undecodable at an error correction coding (ECC) decoder according to a first correction scheme. The controller includes a stripe generator and a stripe decoder. The stripe generator is configured, in response to the number of undecodable codewords exceeding an erasure correction capacity of a stripe correction scheme, to generate trial data for a stripe of the data structure, the trial data including at least one element that corresponds to erased data and at least another element that is associated with an undecodable codeword and that corresponds to valid data of the stripe. The stripe decoder is configured to initiate a stripe decode operation of the trial data.

Dependencies are inferred from the claim text.