DEVICE FOR RECORDING UNAUTHORIZED INTRUSION TO GUARDED ENTITIES Russian patent published in 1997 - IPC

FIELD: burglar alarm engineering; facilities preventing intrusion to guarded pieces of equipment and premises; warning devices. SUBSTANCE: device has data input unit 1, comparison unit 6, AND gate 8, first OR gate 9, and flip-flop 14; it also incorporates newly introduced components, such as majority analysis unit 7, pulse burst generator 10, warning unit 11, timer 12, second and third OR gates 13, 15 with relevant ties given in description of invention. EFFECT: enlarged functional capabilities. 2 dwg