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MULTIPLICATION MODULE, MULTIPLICATIVE INVERSE COMPUTING CIRCUIT, MULTIPLICATIVE INVERSE COMPUTING CONTROL SYSTEM, DEVICE USING MULTIPLICATIVE INVERSE COMPUTING, ENCODING DEVICE AND ERROR CORRECTION DECODER
MULTIPLICATION MODULE, MULTIPLICATIVE INVERSE COMPUTING CIRCUIT, MULTIPLICATIVE INVERSE COMPUTING CONTROL SYSTEM, DEVICE USING MULTIPLICATIVE INVERSE COMPUTING, ENCODING DEVICE AND ERROR CORRECTION DECODER
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机译:乘法模块,乘法逆运算电路,乘法逆运算控制系统,使用乘法逆运算的装置,编码装置和纠错解码器
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摘要
PROBLEM TO BE SOLVED: To provide a multiplication module for multiplying m-bit data on a Galois field GF (2m) (m≥1).;SOLUTION: This multiplication module is provided with 1st and 2nd power exponent computing means u1 and u2 to which 1st m-bit data is inputted from a 1st input part, a 1st multiplying means u3 to which the 1st m-bit data and an output from the 1st power exponent computing mean are inputted, a 2nd multiplying means u4 to which 2nd m-bit data from a 2nd input part and an output from the means u2 are inputted and a selecting means u5 to which an output signal of a the 2nd multiplying means and the 2nd m-bit data are inputted. A 1st control signal S1 is inputted to the 1st power exponent computing means, a 2nd control signal S2 is inputted to the 2nd power exponent computing means, a 3rd control signal S0 for controlling the output of the selecting means is inputted to the selecting means, the 1st multiplying means outputs a 1st output signal, and the selecting means outputs a 2nd output signal.;COPYRIGHT: (C)2002,JPO
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