ERROR CORRECTOR FOR BINARY DATA

摘要

PURPOSE:To enable error detection and correction of check words by dividing data to plural blocks wherein respective blocks have main plural data words and additive plural check words and leading out a parity block. CONSTITUTION:A segment has 96 or 102 scanning lines and has further 6 vertical partity words in association therewith. The whole words of the respective scanning lines from 0 to 95 or 101 of the segment are successively supplied to the input 1 of a vertical parity word generator. The input 1 is connected to one input of an exclusive-OR circuit 2 and one input of a 2:1 selector 3. The selector 3 is so controled as to supply the data or the generated vertical parity words. When the vertical parity words are supplied to the selector 3, a latching circuit 4 is cleared and the content of a delay circuit 5 is cleared as well for the purpose of accepting the data of the next segment.