| 摘要 |
PCT No. PCT/JP91/00266 Sec. 371 Date Oct. 10, 1991 Sec. 102(e) Date Oct. 10, 1991 PCT Filed Feb. 28, 1991 PCT Pub. No. WO91/13496 PCT Pub. Date Sep. 5, 1991.An error-correction encoding and decoding system. First information of k1xk2 digits with k1 digits in a first direction and k2 digits in a second direction is encoded to a product code CA of n1xn2 digits by a partial code word C1 encoded in the first direction to a linear (n1, k1, d1) code with the minimum distance d1 and a partial code word C2 encoded in the second direction to a linear (n2, k2, d2) code with the minimum distance d2. A code Us, which is obtained by encoding the second information of rxkx (r<n1-k1, kx<n2) digits to a linear (n2, kx, d3) code of the minimum distance d3 in the second direction, is superimposed on a check symbol field of the product code CA to generate an error-correcting code Cz, thereby obtaining tile first and second information from an error-correcting code Cz.
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