◄Previous: Reed-Solomon codes and error correction continued

# 2.3 Summary

In this part you have seen examples of the two broad categories of error control codes: an error detecting code (the EAN-13 code) and an error correcting code (RS code).

All error control involved the addition of redundancy to a message. If the number of message bits (or bytes) is k, and the augmented length after the addition of redundancy is n bits (or bytes), the ratio k/n is the code rate.

◄Contents►Next: 3 Perceptual source-coding and lossy compression

OpenLearn - Exploring communications technology
Except for third party materials and otherwise, this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence, full copyright detail can be found in the acknowledgements section. Please see full copyright statement for details.