Speech privacy processing method and apparatus therefor

Details Speech privacy processing method and apparatus therefor Speech privacy processing method and apparatus therefor

1990-01-18

1991-05-21

Tarcza, Thomas H.

Cryptography

Communication system using cryptography

Frequency shift or inversion

380 39, 380 40, H04K 106

Patent

active

050181980

ABSTRACT:
A speech privacy processing apparatus is disclosed including:

REFERENCES:
patent: 4525844 (1985-06-01), Scheuermann
patent: 4623980 (1986-11-01), Vary
patent: 4827507 (1989-05-01), Marry et al.
"Frequency Inversion Scrambler Uses Micro-Processed SSB Audio", W. V. Lanep et al., pp. 34-40; Mobil Radio Technology, Aug. 1984.

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