Method and apparatus of Reed-Solomon encoding-decoding

A Reed-Solomon decoding device that can handle multiple RS (Reed-Solomon) codes by means of different field generation polynomials, comprising:

• a first Galois field transformation means that transforms source data into a specified Galois field on the basis of a first Galois field transformation parameter;
• a decoding means that performs decoding processing using a selected multiplication coefficient set for the aforementioned transformed source data by means of the aforementioned Galois field after transformation;
• a second Galois field transformation means that performs an inverse transform of the decoded data on the basis of a second Galois field transformation parameter;
• and
• a parameter output means that outputs the first Galois field transformation parameter, the second Galois field transformation parameter, and the selected multiplication coefficient set, wherein the parameter output means is operable to be loaded with transformation parameters and multiplication coefficients selected from a plurality of transformation parameters and multiplication coefficients.

A Reed-Solomon encoding/decoding device that can handle multiple RS (Reed-Solomon) codes by means of different field generation polynomials, comprising:

• a first Galois field transformation circuit operable to transform source data into a specified Galois field on the basis of a first Galois field transformation parameter;
• an encoding/decoding circuit connected to receive the transformed source data, operable to perform encoding or decoding processing using a selected multiplication coefficient set for the aforementioned transformed source data by means of the aforementioned Galois field after transformation;
• second Galois field transformation circuit connected to receive the encoded or decoded data from the encoding/decoding circuit, operable to perform an inverse transform of the encoded or decoded data on the basis of a second Galois field transformation parameter;
• and
• a parameter output circuit operable to be loaded with the first Galois field transformation parameter, the second Galois field transformation parameter, and the selected multiplication coefficients selected from a plurality of transformation parameters and multiplication coefficients, wherein the parameter circuit is connected to provide the first Galois field transformation parameter to the first Galois transformation circuit, the second Galois field transformation parameter to the second Galois transformation circuit, and the selected multiplication coefficients to the encoding/decoding circuit.