This design corrects erasues as well as errors and is reconfigurable to handle a number of different block lengths and correction levels.
The following three figures are the first three of fifty-two figures taken from the final document.Â
As of 2016, more than 3.2 million copies of this implementation were sold.
This design was developed many years ago, and if it were redesigned using the latest design tools, it would be a little different but functionally equivalent.