teletext decoder, and also an error detection and correction.

摘要

correction of bit errors is effected in a serially manner in Hamming bytes. The teletext decoder includes selection means (31) for selecting predetermined bits from the received bytes, modulo-2 accumulators (312) for generating a syndrome word which indicates the presence and position of bit errors, decoding means (34) for generating a correction value and correction means for correcting faulty data bits during the serial transfer. The error detection and correction circuit can also be used with other data communication systems as well as with digital storage means. <IMAGE>