CONFERENCE-CALL DEVICE WHICH IS CONTROLLED BY VOICE Russian patent published in 1997 - IPC

Abstract RU 2097935 C1

FIELD: electric communication. SUBSTANCE: device has loudspeaker 12 and microphone circuit which has microphone 1 and amplifier 2, network adder 7, network isolation unit 8, N receiving circuits, N units which inhibits opposite transmission, and voice detectors 3. Each microphone circuit has first and second gates 4, 5 and comparator 6. Each receiving circuit has third gate 10 and receiving amplifier. EFFECT: increased reliability of operations under heavy noise, increased functional capabilities, increased field of application. 1 dwg

Similar patents RU2097935C1

Title	Year	Author	Number
CONFERENCE CALL DEVICE WHICH IS CONTROLLED BY VOICE	1993	Polkovskij I.M. Smyshljaev V.M.	RU2097934C1
DEVICE FOR SHIP LOUDSPEAKER COMMUNICATION AND RELAYING	1996	Vasil'Ev V.I. Ljubimov V.S. Katanovich A.A. Butorin I.S.	RU2131168C1
SYSTEM FOR EMERGENCY COMMUNICATION	1992	Katanovich A.A.	RU2037972C1
LOUDSPEAKER COMMUNICATION DEVICE	1993	Katanovich Andrej Andreevich	RU2103833C1
UNIFIED SHIPBOARD COMMUNICATION SYSTEM	2003	Dolbnja A.G. Gavrilenko S.A. Direktorov N.N. Katanovich A.A. Miroshnikov V.I. Petrov N.N.	RU2261530C2
COMPUTER-AIDED INTEGRATED DIGITAL COMMUNICATION SYSTEM	2000	Gavrilenko S.A. Zajtsev D.V. Katanovich A.A. Nikitin V.S. Orel V.A. Peredin Ju.G. Seligerskij Ju.A. Shestakova A.V.	RU2188511C2
LOUDSPEAKING DEVICE WITH AUDIO CONTROL	0	Lidikh Anatolij Konstantinovich Polkovskij Iosif Meerovich	SU1293854A1
DEVICE DETERMINING TIME OF SIGNAL ATTENUATION	1995	Kalenkov B.O. Belozerova E.V.	RU2084840C1
LOUD-SPEAKING COMMUNICATION UNIT WITH AUDIO CONTROL	0	Polkovskij Iosif Meerovich Koveshnikov Vladimir Pavlovich	SU1062895A1
DEVICE FOR DISPATCHERЪS DUPLEX OPERATION	0	Vergelis Nikolaj Ivanovich	SU1732491A1

RU 2 097 935 C1

Authors

Polkovskij I.M.

Zorin V.M.

Smyshljaev V.M.

Dates

1997-11-27—Published

1993-08-02—Filed