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(19)

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2 090 934

(13)

(51)

IPC

(21) (22)

Application

95106863/09, 1995-04-28

(22)

Actual filing date

1995-04-28

(45)

Published

1997-09-20

(72)

Inventor

Chlenov A.N.Klimov A.V.

(73)

Holder

Nauchno-Issledovatel'Skij Tsentr Vserossijskogo Nauchno-Issledovatel'Skogo Instituta Protivopozharnoj Oborony Mvd Rf

BURGLAR ALARM Russian patent published in 1997 - IPC

Abstract RU 2090934 C1

FIELD: alarms responding to presence of intruder by breaking vitrified structures. SUBSTANCE: alarm is provided, in addition, with pulse shaper, signal integrating and stretching unit, OR gate, threshold unit. Its operation is organized so that it starts functioning and checking duration of acoustic noise caused by intruder's actions, and shapes alarm message as soon as its parameters go above preset values. EFFECT: improved reliability of alarm. 4 cl, 1 dwg

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RU 2 090 934 C1

Authors

Chlenov A.N.

Klimov A.V.

Dates

1997-09-20—Published

1995-04-28—Filed