332 results about "Code rate" patented technology

In telecommunication and information theory, the code rate (or information rate) of a forward error correction code is the proportion of the data-stream that is useful (non-redundant). That is, if the code rate is k/n for every k bits of useful information, the coder generates a total of n bits of data, of which n-k are redundant. If R is the gross bitrate or data signalling rate (inclusive of redundant error coding), the net bitrate (the useful bit rate exclusive of error-correction codes) is ≤R·k/n.