| 摘要 |
Syndrome calculating apparatus in which a operation of the multiplication of each of the unit codes of a received code by power of the root alpha of the primitive polynomial in the Galois field is carried out first, a series of operations of the addition of the result by power of the root alpha to the next unit code and the multiplication of the result thus added by power of the root alpha are repeatedly carried out secondly so as to finally obtain syndromes, by a plurality of flip-flops disposed in parallel to one another, a pair of XOR gates disposed in parallel to each other for each of the flip-flops and a pair of AND gates for each of the flip-flops for selectively supplying the output data of the XOR gates to the flip-flops.
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