Telegraphy – Systems – Printing
Patent
1982-12-29
1986-03-18
Cangialosi, Salvatore
Telegraphy
Systems
Printing
178 2213, H04K 102, H04L 902
Patent
active
045770590
ABSTRACT:
A decoding system containing a synchronizing and entry detector rendering possible the phase-in of messages delayed, for example, by interference. In order to be able to decode parts of the message received prior to phase-in, the cipher is stored intermediately from the onset of reception in a memory. Following the completion of the transmission, the decoding generator is set to an initial state corresponding to the phase-in and operated in the inverse direction from there. Simultaneously the intermediately stored cipher is called up in an inversed order from the memory and decoded with the key pulse sequence of the decoding generator.
REFERENCES:
patent: 3473150 (1969-10-01), McClelland
patent: 3665393 (1972-05-01), Brune et al.
patent: 4144522 (1979-03-01), Kageyama et al.
patent: 4145683 (1979-03-01), Brookhart
patent: 4172213 (1979-10-01), Barnes et al.
patent: 4377863 (1983-03-01), Legory et al.
Cangialosi Salvatore
Gretag Aktiengesellschaft
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