ALARM DEVICE Russian patent published in 2007 - IPC G08B13/24

Abstract SU 1840457 A1

FIELD: electrical engineering; burglar alarm.

SUBSTANCE: alarm device can be used for equipping perimeters of different objects. Device has controlled filter and sample-store device; both devices are introduced additionally. Device also has flip-flop, OR gate, switch, voltage divider. High-frequency filtration of signal to be controlled is provided.

EFFECT: improved noise immunity.

1 dwg

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SU 1 840 457 A1

Authors

Volik Viktor Nikolaevich

Klimenko Sergej Petrovich

Semikin Vladimir Mikhajlovich

Dates

2007-03-20—Published

1987-11-13—Filed