Decoding process and apparatus

Details Decoding process and apparatus Decoding process and apparatus

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.

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