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Combinatorial polynomial multiplier for galois field 256 arithmetic

Image Number 5 for United States Patent #6473779.

A combinatorial polynomial multiplier for Galois Field 256 arithmetic utilizes fewer components than an iterative Galois Field 256 arithmetic multiplier and operates 8 times faster. The combinatorial multiplier employs AND and XOR functions and operates in a single clock cycle. It can reduce the number of transistors required for the Galois Field 256 arithmetic multiplier for a Reed-Solomon decoder by almost 90%.

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