DEVICE FOR AUTOMATIC ESTABLISHING SECRET TELEPHONE COMMUNICATIONS Russian patent published in 2002 - IPC

Abstract RU 2191481 C2

FIELD: telephone communications; transmission of secret messages over channel-switching telephone network. SUBSTANCE: device provides for synchronizing scrambling equipment before communication channel is allocated to subscribers. Device has telephone sets, scrambling pieces of equipment, exchange unit, generator unit, voice-signal switchboard, telephone circuit switchboard, and OR gate. EFFECT: reduced delay time before secret talk can be started. 6 dwg

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RU 2 191 481 C2

Authors

Kotov V.I.

Os'Kin V.A.

Starovojtov A.V.

Bochkarev V.L.

Kaminskij V.G.

Funtikov V.A.

Dates

2002-10-20—Published

1999-03-02—Filed