THE CIRCUIT FOR COMPUTING DENOMINATOR OF AN ERROR VALVE IN DECODER FOR ERROR CORRECTION

摘要

This invention is concerned with the decoder circuit for the error revision of codeword which finds the denominator term of error value. The computed coefficient values are output to the transformation part (P1-4) through the polynomial coefficient transformation circuit of error position (20). The AND gates (A1-5) are controlled according to the number of error generation in AND gate control circuit (30). Therefore the computed values can be obtained through the exclusive OR gate S(O1-8) and they are applied to the computation circuit (60) through the circuit for finding reciprocal values (50), so the values of denominator term can be obatined effectively.