Method and device for calculating a polynomial of error localization to be used in a decoder of the reed solomon -.

摘要

The device (1) includes two multiplication blocks (10,30) and an addition block (60). The first multiplier calculates the difference (dn) between the polynomial coefficient in the current iteration and its value in the previous iteration. The second multiplier calculates the temporal term (Tn) and the correction term (Cn). The addition block estimates the current value of the polynomial. An inversion block (20) generates the inverse values of the differences (dn-1) in the previous iteration. Multiplexers and demultiplexers connected the multiplier and addition blocks.