Communications: electrical – Digital comparator systems
Patent
1975-02-19
1976-02-10
Atkinson, Charles E.
Communications: electrical
Digital comparator systems
3401461BA, G06F 1108
Patent
active
039380858
ABSTRACT:
The transmitting station comprises coding means, including a shift-register having L stages, where L is the length of the code, for delivering continuation and repetition bit trains, each of which comprises information bits including at least L message bits as well as the parity bits associated with the information bits. In the case of a continuation bit train, the L message bits are supplied by a data source, in the case of a repetition bit train, they are fed back to the coding means from the shift-register. In the receiving station, the decoding of messages bits is a conventional decoding in accordance with the code where a continuation bit train is concerned, but also takes into account the previously decoded value where a repetition bit train is concerned. The trains may be identified by mean of prefixes of N.sub.1 bits, in which case, each bit train comprises (N.sub.1 + L) information bits.
REFERENCES:
patent: 3571795 (1971-03-01), Tong
patent: 3697947 (1972-10-01), Macy
patent: 3831142 (1974-08-01), Fletcher et al.
patent: 3842400 (1974-10-01), Liefeld et al.
patent: 3876979 (1975-04-01), Winn et al.
"Thomson-CSF"
Atkinson Charles E.
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