| 摘要 |
Disclosed herein is a coding apparatus handling quasi-cyclic codes in which a given code word cyclically shifted by p symbols provides another code word, wherein parallel processing is executed in units of mp (a multiple of p) symbols; mp generator polynomials are used; and the generator polynomials gj(x) are selected such that a coefficient of degree deg(gi(x)) of x becomes zero for all gi(x) lower in degree than that and circuits in which these generator polynomials gj(x) are combined are connected with each other.
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