Privacy communication system employing time/frequency...

Details Privacy communication system employing time/frequency... Privacy communication system employing time/frequency...

H - Electricity

04

K

379/1

H04K 1/00 (2006.01)

Patent

CA 1182595

Abstract of the Disclosure A privacy communication system digitizes a voice signal and divides the signal into different frequency bands or time segments and shifts the bands or segments in frequency and/or time under control of a continually changing pseudo-random key word to develop an encrypted transmitted signal having the same time/bandwidth product as the voice signal.

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