METHOD FOR PROTECTING SPEECH INFORMATION ALONG VIBRO-ACOUSTIC CHANNEL

FIELD: radio engineering, namely, equipment for generating artificial interference, possible use for protecting information from leaking along vibro-acoustic channel from a room. ^ SUBSTANCE: in accordance to method for protecting speech information along vibro-acoustic channel, interference is gene...

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Bibliographische Detailangaben
Hauptverfasser:	GERASIMENKO VLADIMIR GRIGOR'EVICH, GONCHAROV IGOR' VASIL'EVICH, KATKOV BORIS GRIGOR'EVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY JAMMING OF COMMUNICATION SECRET COMMUNICATION TELEPHONIC COMMUNICATION
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Beschreibung
Zusammenfassung:	FIELD: radio engineering, namely, equipment for generating artificial interference, possible use for protecting information from leaking along vibro-acoustic channel from a room. ^ SUBSTANCE: in accordance to method for protecting speech information along vibro-acoustic channel, interference is generated for masking speech signal, while interference is formed as M-series of pulses with following transformation, while transformation of M-series of pulses is performed in form of generation of vibration impact signals, by which speech signal is multiplicatively masked, while M-series of pulses is generated from period to period in accordance to random rule. ^ EFFECT: increased efficiency of technical means for information protection, decreased acoustic radiations, interfering with negotiations, radiations, affecting operation of nearby radio-electronic means, and also disclosing a structure of noise interference, decreasing probability of it being filtered. ^ 2 dwg