Voice band splitting scrambler

Details Voice band splitting scrambler Voice band splitting scrambler

H - Electricity

04

K

379/1, 325/3

H04K 1/04 (2006.01)

Patent

CA 1291833

VOICE BAND SPLITTING SCRAMBLER ABSTRACT OF THE DISCLOSURE Disclosed is a voice band splitting scrambler. To simplify the hardware thereof, the apparatus comprises a band splitting unit (11) for splitting an input voice signal into a plurality of band channels, and a scrambled voice signal generating unit (13) for carrying out spectrum-inverting and band-relocating operations on the respective channels to generate a scrambled voice signal. The scrambled voice signal generating unit (13) includes a modulating unit (15) for band-relocating the respective channels by noninverting carriers or inverting carriers set in different bands respectively; and an adding unit (17) for adding the signals of the non- inverting channels and the signals of the inverted channels to each other.

572470

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