| 摘要 |
The present invention provides a data processing method that can reduce the number of data blocks belonging to a same error-correcting code word for two-dimensional error bursts that give rise to errors over a plurality of transmission channels. There is provided a data processing method for coding digital data by means of predetermined error-correcting codes and allocating them to a plurality of channels, using data blocks of a predetermined length as units, the method including the step of allocating the coded data to N channels so as to make all N data blocks arranged consecutively in the direction of data arrangement in channels or in the channel arranging direction intersecting (orthogonal to) the direction belong to different error-correcting code words on the N channels and all data blocks existing in a region where a-1 data blocks arranged consecutively in a channel exist in b consecutively arranged channels or where a data blocks consecutively arranged in a channel exist in b-1 channels belong to all different error-correcting code words, where N being the number of the channels (N=axb, where both a and b are integers not smaller than 2).
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