Error correction code encoding device and error correction code encoding method.

摘要

An original data packet composed of (k x m - po) symbols x n lines is added to first parity symbols composed of po symbols x n lines and thereby a first error correction code sequence composed of (k x m) symbols x n lines is formed. Matrix symbols of the first error correction code sequence are divided into k blocks, each of which is composed of m symbols x n lines. The k divided blocks are positioned as diagonal element blocks of a block matrix composed of k blocks x k lines. While a first encoding process and a block positioning process are being performed for a plurality of original data packets to be transmitted in succession, second parity symbols composed of pi symbols x n lines are added to the matrix composed of (k x m) symbols x n lines and thereby a second error correction code sequence composed of (k x m + pi) symbols x n lines is formed. <IMAGE>