| 摘要 |
<p>In the process to output check codes corresponding to information codes of one code word of error detection codes from the information codes of the one code word, by using lookup table means for inputting at least data of a plurality of bits, as addresses, in the information codes of the one code word and reading out the data regarding at least a part of the check code corresponding to the information codes of the one code word, the processing speed is raised. By outputting the check codes obtained by the above processes and the information codes at mutually corresponding timings, an error detection code coding device which can process at a high speed can be obtained. On the other hand, by receiving the information codes obtained through the transmission path as inputs to the look-up table (64) and by comparing (66) the check codes obtained by the above processes and the check codes obtained through the transmission path, an error detection code decoding device which can process at a high speed can be obtained.</p> |
