EP 0191048 A1 19860820 - SIGNAL TRANSMISSION SYSTEM INTENDED PARTICULARLY TO THE SURVEYANCE OF A GROUP OF ROOMS TO BE PROTECTED.
Title (en)
SIGNAL TRANSMISSION SYSTEM INTENDED PARTICULARLY TO THE SURVEYANCE OF A GROUP OF ROOMS TO BE PROTECTED.
Title (de)
SIGNALÜBERTRAGUNGSVORRICHTUNG, INSBESONDERE FÜR DIE ÜBERWACHUNG EINES ZU SICHERNDEN RAUMKOMPLEXES.
Title (fr)
SYSTEME DE TRANSMISSION DE SIGNAUX DESTINES NOTAMMENT A LA SURVEILLANCE D'UN ENSEMBLE DE LOCAUX A PROTEGER.
Publication
Application
Priority
FR 8412624 A 19840809
Abstract (en)
[origin: FR2569069A1] The invention relates to a system for the transmission of signals on a two-wire transmission line. The system is characterized in that it comprises a central unit (10) including a bidirectional control device (38) connected on one hand to emission and reception circuits (32, 33) respectively of identification codes and return codes and, on the other hand, to a two-wire transmission line (20), said bidirectional control device being controlled to transmit on said line, in addition to said coded identification and answering signals, other data signals. The present invention is particularly applicable to the monitoring of premises to be protected.
Abstract (fr)
Système de transmission des signaux sur une ligne de transmission bifilaire. Le système est caractérisé en ce qu'il comprend une unité centrale (10) comportant un dispositif de commande bidirectionnelle (38) relié, d'une part, à des circuits d'émission et de réception (32, 33) respectivement de code d'identification et de codes de retour et, d'autre part, à une ligne de transmission bifilaire (20), ledit dispositif de commande bidirectionnelle étant commandé pour transmettre sur ladite ligne outre lesdits signaux codés d'identification et de réponse d'autres signaux d'information. La présente invention trouve application notamment dans la surveillance de locaux à protéger.
IPC 1-7
IPC 8 full level
G08B 26/00 (2006.01); H04M 11/02 (2006.01)
CPC (source: EP)
G08B 26/002 (2013.01); H04M 11/025 (2013.01)
Citation (search report)
See references of WO 8601324A1
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
FR 2569069 A1 19860214; FR 2569069 B1 19870306; EP 0191048 A1 19860820; WO 8601324 A1 19860227
DOCDB simple family (application)
FR 8412624 A 19840809; EP 85903847 A 19850808; FR 8500216 W 19850808