METHOD FOR PROTECTION OF INFORMATION WHICH IS TRANSMITTED THROUGH WIRE COMMUNICATION CHANNELS AND DEVICE WHICH IMPLEMENTS SAID METHOD Russian patent published in 1998 - IPC

Abstract RU 2112319 C1

FIELD: communication equipment, in particular, confidential information transmission. SUBSTANCE: method involves noise protection of transmission line in voice range by means of two-channel adaptive filter which receives two signals information and reference ones and subtracts reference signal from information one. Information signal is mix of transmitted signal and noise generator, reference signal is transmitted by noise generator. Corresponding device has noise generator 1 and two-channel digital adaptive filter 3. EFFECT: simplified design of information protection and processing. 2 cl, 1 dwg

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RU 2 112 319 C1

Authors

Abalmazov Eh.I.

Svetovidov V.N.

Khitrov M.V.

Kochkin A.A.

Dates

1998-05-27—Published

1997-10-29—Filed