EP 0964375 A1 19991215 - Electronic surveillance module for protection and/or surveillance system
Title (en)
Electronic surveillance module for protection and/or surveillance system
Title (de)
Elektronisches Überwachungsmodul für Schutz- und/oder Überwachungssystem
Title (fr)
Module électronique de surveillance pour système de protection et/ou de surveillance
Publication
Application
Priority
FR 9807601 A 19980612
Abstract (en)
Emitted sound (1) reflections are picked up by a transducer (3) and amplified (4). Signals from the transducer are processed (5) before being passed on a transmission channel to a remote surveillance centre (11).
IPC 1-7
IPC 8 full level
G08B 1/08 (2006.01)
CPC (source: EP)
G08B 1/08 (2013.01)
Citation (search report)
- [X] GB 2268300 A 19940105 - CHITTLEBURGH WILLIAM FRANCIS S [GB], et al
- [A] US 4044351 A 19770823 - EVERSON EVAN PHILIP
- [A] US 5012223 A 19910430 - GRIEBELL CHARLES A [US], et al
- [A] DE 3410225 A1 19850919 - BEZET WERK HERMANN BUCHHOLZ GM [DE]
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
EP 0964375 A1 19991215; CA 2273426 A1 19991212; FR 2779857 A1 19991217; FR 2779857 B1 20010105
DOCDB simple family (application)
EP 99420123 A 19990525; CA 2273426 A 19990531; FR 9807601 A 19980612