Digital signal transmission system with encoding and decoding se

Details Digital signal transmission system with encoding and decoding se Digital signal transmission system with encoding and decoding se

1980-02-22

1982-10-26

Atkinson, Charles E.

Excavating

G06F 1110

Patent

active

043565646

ABSTRACT:
In a digital signal transmission system in which interleaved sequences of digital words are transmitted on respective channels, the words in each sequence are added bit-by-bit in a first modulo-two adder to produce a first parity signal, the latter and selected ones of the sequences of digital words have imparted thereto different respective delay times, and then the sequences of digital words and the first parity signal are added bit-by-bit in a second modulo-two adder to produce a second parity signal. The second parity signal is delayed a predetermined amount and fed back to the first modulo-two adder. Then, the interleaved sequences of digital words and the first and second parity signals are serially transmitted on a transmission medium, which can be a video tape. The transmission system is capable of correcting burst errors occurring in more than three successive digital words.

REFERENCES:
patent: 3409875 (1968-11-01), Jager et al.
patent: 3582881 (1971-06-01), Burton
patent: 3775746 (1973-11-01), Boudreau et al.
patent: 3781795 (1973-12-01), Zegers
patent: 4206440 (1980-06-01), Doi et al.
patent: 4211997 (1980-07-01), Rudnick et al.
patent: 4238852 (1980-12-01), Iga et al.
T. Doi et al., A Long-Play Digital Audio Disk System, Journal of the Audio Engineering Society, 1979 Dec., vol. 27, No. 12, pp. 975-981.

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