Method of and apparatus for correcting errors in binary data

Details Method of and apparatus for correcting errors in binary data Method of and apparatus for correcting errors in binary data

G - Physics

11

B

352/18, 354/223

G11B 20/18 (2006.01) H03M 13/15 (2006.01) H04L 1/24 (2006.01) H04N 5/945 (2006.01)

Patent

CA 1214562

ABSTRACT OF THE DISCLOSURE A method of correcting errors in binary data which may represent a digital television signal, comprises dividing the data into a plurality of first blocks, each first block comprising a first plurality of, say sixty, data words and a second plurality of, say six, check words, and further deriving a parity check block for a plurality of the first blocks. Each check word is derived in dependence on all the data words in the first block and each other check word in the first block. One check word may be derived by modulo-2 addition and the remaining check words may be derived by respective primitive polynomial generators.

442633

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