Patent ID: 8484535
Filing Date: 2013-07-09
Classification: G06F,G11B,H03M

Abstract:
1. A machine-implemented method for storing an original encoded codeword to a storage medium, the method comprising: (a) writing the original encoded codeword to the storage medium as a written encoded codeword; (b) generating a channel output codeword by reading the written encoded codeword from the storage medium; (c) comparing the original encoded codeword to a derived codeword based on the channel output codeword to identify a first set of one or more erroneous bits in the written encoded codeword; (d) generating a second set of one or more erroneous bits in the written encoded codeword by selecting one or more erroneous bits in the first set; and (e) writing, to the storage medium, erroneous-bit information corresponding to the one or more erroneous bits in the second set.