Reed-Solomon Decoder Using Galoa Field Multiplier

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Reed-Solomon decoder, which is applied to a receiving end in digital television, and uses a Galois field in multiplication and addition operations, each having a predetermined number of bits. A multiplication unit for performing multiplication on the Gallius field with respect to two input data; An adder for performing addition on a Gallius field with respect to the summed data before the fed back system clock and the output data of the multiplier; A reed-solomon decoder configured to store the summed data of the adder to provide the summed data as a feedback input to the adder, and to provide the sum result to the outside, and to perform multiplication and addition on a Gallius field. It can provide and reduce the size of the hardware.