EP 0022026 B1 19850327 - ALARM TRANSMISSION SYSTEM
Title (en)
ALARM TRANSMISSION SYSTEM
Publication
Application
Priority
FR 7916431 A 19790626
Abstract (en)
[origin: ES8102754A1] An alarm transmission system with portable receivers for watching a site, which system comprises a plurality of portable and removable autonomous detection units, a plurality of portable autonomous receiving modules capable of releasing signalling or warning means incorporated to the said receiving modules upon receipt of signals sent by a transmission unit and a central information-receiving and processing unit equipped with at least one receiving module, and in which system the signal transmission unit is constituted on the one hand by radio-transmission and coding means associated to each detection unit and on the other hand by means of reception by radio-link and decoding means incorporated to each portable receiving module.
IPC 1-7
IPC 8 full level
G08B 25/00 (2006.01); G08B 25/10 (2006.01)
CPC (source: EP US)
G08B 25/009 (2013.01 - EP US); G08B 25/10 (2013.01 - EP US)
Citation (examination)
- US 4019139 A 19770419 - ORTEGA JOSE I
- FR 2410317 A1 19790622 - HOLZER WALTER [DE]
- IEEE TRANS. ON INDUSTRY AND GENERAL APPLICAITONS, vol. 1GA-4, no. 3, mai/juin 1968 New York US L.H. WIGGER et al.: "Remote radio alarm systems" pages 328-333
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0022026 A1 19810107; EP 0022026 B1 19850327; AT E12435 T1 19850415; BR 8003977 A 19810113; CA 1167544 A 19840515; DE 3070379 D1 19850502; DK 272180 A 19801227; ES 492831 A0 19810216; ES 8102754 A1 19810216; FR 2460013 A1 19810116; FR 2460013 B1 19841102; JP H0237000 B2 19900821; JP S5638691 A 19810413; US 4358756 A 19821109
DOCDB simple family (application)
EP 80400958 A 19800626; AT 80400958 T 19800626; BR 8003977 A 19800625; CA 354834 A 19800626; DE 3070379 T 19800626; DK 272180 A 19800625; ES 492831 A 19800626; FR 7916431 A 19790626; JP 8720480 A 19800626; US 16058080 A 19800618