Method for scrambling satellite communications

Details Method for scrambling satellite communications Method for scrambling satellite communications

1990-07-09

1992-05-12

Gregory, Bernarr E.

Cryptography

Communication system using cryptography

Wireless communication

380 9, 380 10, 380 49, 375 40, 375 1, H04L 2710

Patent

active

051134438

ABSTRACT:
A secure communications system multiplexes segments of the information signal for keyed encoding and modulation onto a plurality of different carrier frequencies and/or polarizations, and transmits the encoded carriers to multi-channel signal summing receivers that decode the segments from all channels, to reassemble the information signal for use by authorized stations with a key. The use of the multi-channel link and the summing receiver allows the greatest number of different coding algorithms for accommodating the greatest number of discrete secure channels.

REFERENCES:
patent: 4179657 (1979-12-01), Hobbs
patent: 4443799 (1984-04-01), Rubin
patent: 4905221 (1990-02-01), Ichiyoshi

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